import express from "express";
import cors from "cors";
import bcrypt from "bcryptjs";
import jwt from "jsonwebtoken";
import pg from "pg";
import crypto from "crypto"; 

const { Pool } = pg;
const app = express();

app.use(cors());
// Ampliamos el límite a 10MB para permitir la subida de logotipos en Base64
app.use(express.json({ limit: '10mb' }));
app.use(express.urlencoded({ limit: '10mb', extended: true }));

// VARIABLES DE ENTORNO
const {
  DATABASE_URL,
  JWT_SECRET,
  EVOLUTION_BASE_URL,
  EVOLUTION_API_KEY,
  EVOLUTION_INSTANCE, 
} = process.env;

// --- DIAGNÓSTICO DE INICIO ---
console.log("------------------------------------------------");
console.log("🚀 VERSIÓN COMPLETA - CON AUTOMATISMOS REALES"); 
console.log("------------------------------------------------");
if (!DATABASE_URL) console.error("❌ FALTA: DATABASE_URL");
if (!JWT_SECRET) console.error("❌ FALTA: JWT_SECRET");

if (!EVOLUTION_BASE_URL) console.error("⚠️ AVISO: Falta EVOLUTION_BASE_URL");
else console.log("✅ Evolution URL:", EVOLUTION_BASE_URL);

if (!EVOLUTION_INSTANCE) console.error("⚠️ AVISO: Falta EVOLUTION_INSTANCE");
else console.log("✅ Instancia Notificaciones:", EVOLUTION_INSTANCE);

console.log("------------------------------------------------");

if (!DATABASE_URL || !JWT_SECRET) process.exit(1);

const pool = new Pool({ connectionString: DATABASE_URL, ssl: false });

// ==========================================
// 💰 CONFIGURACIÓN DE PLANES (SAAS)
// ==========================================
const PLAN_LIMITS = {
    'free': { name: 'Básico Gratuito', whatsapp_enabled: false, templates_enabled: false, automation_enabled: false },
    'standard': { name: 'Estándar', whatsapp_enabled: true, templates_enabled: true, automation_enabled: false },
    'pro': { name: 'Profesional', whatsapp_enabled: true, templates_enabled: true, automation_enabled: true }
};

// ==========================================
// 🧠 AUTO-ACTUALIZACIÓN DB
// ==========================================
async function autoUpdateDB() {
  const client = await pool.connect();
  try {
    console.log("🔄 Verificando estructura DB...");

    await client.query(`
      -- USUARIOS
      CREATE TABLE IF NOT EXISTS users (
        id SERIAL PRIMARY KEY,
        full_name TEXT NOT NULL,
        phone TEXT NOT NULL,
        email TEXT NOT NULL,
        dni TEXT,
        address TEXT,
        password_hash TEXT NOT NULL,
        is_verified BOOLEAN DEFAULT FALSE,
        owner_id INT,
        role TEXT DEFAULT 'operario',
        company_slug TEXT UNIQUE,
        plan_tier TEXT DEFAULT 'free', 
        subscription_status TEXT DEFAULT 'active',
        paid_providers_count INT DEFAULT 0,
        zones JSONB DEFAULT '[]',
        status TEXT DEFAULT 'active',
        created_at TIMESTAMP DEFAULT NOW()
      );
      CREATE TABLE IF NOT EXISTS login_codes (
        id SERIAL PRIMARY KEY,
        user_id INT REFERENCES users(id) ON DELETE CASCADE,
        phone TEXT NOT NULL,
        code_hash TEXT NOT NULL,
        purpose TEXT DEFAULT 'register_verify',
        consumed_at TIMESTAMP,
        expires_at TIMESTAMP NOT NULL,
        created_at TIMESTAMP DEFAULT NOW()
      );

      -- CONFIGURACIÓN NEGOCIO
      CREATE TABLE IF NOT EXISTS guilds (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        name TEXT NOT NULL, 
        created_at TIMESTAMP DEFAULT NOW()
      );
      CREATE TABLE IF NOT EXISTS user_guilds (
        user_id INT REFERENCES users(id) ON DELETE CASCADE,
        guild_id INT REFERENCES guilds(id) ON DELETE CASCADE,
        PRIMARY KEY (user_id, guild_id)
      );
      CREATE TABLE IF NOT EXISTS companies (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        name TEXT NOT NULL,
        cif TEXT,
        email TEXT,
        phone TEXT,
        address TEXT,
        created_at TIMESTAMP DEFAULT NOW()
      );
      
      -- CLIENTES (CRM)
      CREATE TABLE IF NOT EXISTS clients (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        full_name TEXT NOT NULL,
        phone TEXT NOT NULL,
        email TEXT,
        addresses JSONB DEFAULT '[]',
        notes TEXT,
        created_at TIMESTAMP DEFAULT NOW()
      );

      -- ESTADOS Y PLANTILLAS
      CREATE TABLE IF NOT EXISTS service_statuses (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        name TEXT NOT NULL,
        color TEXT DEFAULT 'gray',
        is_default BOOLEAN DEFAULT FALSE,
        is_final BOOLEAN DEFAULT FALSE,
        is_system BOOLEAN DEFAULT FALSE, -- AÑADIDO: Identificador de estados imborrables
        created_at TIMESTAMP DEFAULT NOW()
      );
      CREATE TABLE IF NOT EXISTS message_templates (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        type TEXT NOT NULL,
        content TEXT,
        created_at TIMESTAMP DEFAULT NOW(),
        UNIQUE(owner_id, type)
      );

      -- ZONAS
      CREATE TABLE IF NOT EXISTS zones (
        id SERIAL PRIMARY KEY,
        name TEXT NOT NULL,
        owner_id INT, 
        created_at TIMESTAMP DEFAULT NOW()
      );
      CREATE TABLE IF NOT EXISTS user_zones (
        user_id INT REFERENCES users(id) ON DELETE CASCADE,
        zone_id INT REFERENCES zones(id) ON DELETE CASCADE,
        PRIMARY KEY (user_id, zone_id)
      );
      

      -- 🤖 ROBOTS / PROVEEDORES
      CREATE TABLE IF NOT EXISTS provider_credentials (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        provider TEXT NOT NULL, 
        username TEXT NOT NULL,
        password_hash TEXT NOT NULL,
        last_sync TIMESTAMP,
        status TEXT DEFAULT 'active',
        UNIQUE(owner_id, provider)
      );
      CREATE TABLE IF NOT EXISTS scraped_services (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        provider TEXT NOT NULL,
        service_ref TEXT NOT NULL,
        raw_data JSONB, 
        status TEXT DEFAULT 'pending',
        automation_status TEXT DEFAULT 'manual',
        created_at TIMESTAMP DEFAULT NOW(),
        UNIQUE(owner_id, provider, service_ref)
      );

      -- 🗺️ TABLA DE MAPEO DE VARIABLES
      CREATE TABLE IF NOT EXISTS variable_mappings (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        provider TEXT NOT NULL, 
        original_key TEXT NOT NULL, 
        target_key TEXT, 
        is_ignored BOOLEAN DEFAULT FALSE,
        created_at TIMESTAMP DEFAULT NOW(),
        UNIQUE(owner_id, provider, original_key)
      );

      -- SERVICIOS (PRINCIPAL)
      CREATE TABLE IF NOT EXISTS services (
        id SERIAL PRIMARY KEY,
        owner_id INT REFERENCES users(id) ON DELETE CASCADE,
        client_id INT REFERENCES clients(id) ON DELETE SET NULL,
        status_id INT REFERENCES service_statuses(id) ON DELETE SET NULL,
        guild_id INT REFERENCES guilds(id) ON DELETE SET NULL,
        assigned_to INT REFERENCES users(id) ON DELETE SET NULL,
        title TEXT,
        description TEXT,
        contact_phone TEXT,
        contact_name TEXT,
        address TEXT,
        email TEXT,
        scheduled_date DATE DEFAULT CURRENT_DATE,
        scheduled_time TIME DEFAULT CURRENT_TIME,
        duration_minutes INT DEFAULT 30,
        is_urgent BOOLEAN DEFAULT FALSE,
        is_company BOOLEAN DEFAULT FALSE,
        company_id INT REFERENCES companies(id) ON DELETE SET NULL,
        company_ref TEXT,
        internal_notes TEXT,
        client_notes TEXT,
        import_source TEXT, 
        provider_data JSONB DEFAULT '{}', 
        closed_at TIMESTAMP,
        created_at TIMESTAMP DEFAULT NOW()
      );
      CREATE TABLE IF NOT EXISTS service_logs (
        id SERIAL PRIMARY KEY,
        service_id INT REFERENCES services(id) ON DELETE CASCADE,
        user_id INT REFERENCES users(id) ON DELETE SET NULL,
        old_status_id INT REFERENCES service_statuses(id),
        new_status_id INT REFERENCES service_statuses(id),
        comment TEXT,
        created_at TIMESTAMP DEFAULT NOW()
      );

      -- TABLA PARA ASIGNACIÓN AUTOMÁTICA
      CREATE TABLE IF NOT EXISTS assignment_pings (
        id SERIAL PRIMARY KEY,
        scraped_id INT NOT NULL,
        user_id INT REFERENCES users(id) ON DELETE CASCADE,
        token TEXT UNIQUE NOT NULL,
        status TEXT DEFAULT 'pending', 
        expires_at TIMESTAMP NOT NULL,
        created_at TIMESTAMP DEFAULT NOW()
      );
    `);

   // PARCHE DE ACTUALIZACIÓN
    await client.query(`
      DO $$ BEGIN 

      -- AÑADIDO: Token mágico para el Portal del Cliente
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='clients' AND column_name='portal_token') THEN 
            ALTER TABLE clients ADD COLUMN portal_token TEXT UNIQUE; 
            UPDATE clients SET portal_token = substr(md5(random()::text || id::text), 1, 12) WHERE portal_token IS NULL;
            ALTER TABLE clients ALTER COLUMN portal_token SET DEFAULT substr(md5(random()::text || clock_timestamp()::text), 1, 12);
        END IF;

    -- AÑADIDO: Motor de Ranking
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='ranking_score') THEN 
            ALTER TABLE users ADD COLUMN ranking_score NUMERIC DEFAULT 50.0; 
            ALTER TABLE users ADD COLUMN ranking_data JSONB DEFAULT '{}'::jsonb; 
        END IF;


        -- NUEVO: Columna para colores personalizados de la App
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='app_settings') THEN 
            ALTER TABLE users ADD COLUMN app_settings JSONB DEFAULT '{"primary": "#1e3a8a", "secondary": "#2563eb", "bg": "#f8fafc"}'; 
        END IF;

        -- AÑADIDO: Permiso para coger servicios libres de la bolsa
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='can_claim_services') THEN 
            ALTER TABLE users ADD COLUMN can_claim_services BOOLEAN DEFAULT TRUE; 
        END IF;

        -- AÑADIDO: Columna para guardar la configuración de WhatsApp
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='wa_settings') THEN
            ALTER TABLE users ADD COLUMN wa_settings JSONB DEFAULT '{}'; 
        END IF;

        -- AÑADIDO: Configuración del Portal del Cliente
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='company_logo') THEN 
            ALTER TABLE users ADD COLUMN company_logo TEXT; 
        END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='portal_settings') THEN 
            ALTER TABLE users ADD COLUMN portal_settings JSONB DEFAULT '{"m_start":"09:00", "m_end":"14:00", "a_start":"16:00", "a_end":"19:00"}'; 
        END IF;

        -- AÑADIDO: Columna física de operario para el panel operativo
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='scraped_services' AND column_name='assigned_to') THEN 
            ALTER TABLE scraped_services ADD COLUMN assigned_to INT REFERENCES users(id); 
        END IF;

        -- ASEGURAR COLUMNA URGENTE EN SCRAPED
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='scraped_services' AND column_name='is_urgent') THEN 
            ALTER TABLE scraped_services ADD COLUMN is_urgent BOOLEAN DEFAULT FALSE; 
        END IF;

        -- AÑADIDO: Columna de palabras clave IA para los gremios
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='guilds' AND column_name='ia_keywords') THEN 
            ALTER TABLE guilds ADD COLUMN ia_keywords JSONB DEFAULT '[]'; 
        END IF;

        -- AÑADIDO: Columna para marcar estados imborrables del sistema
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='service_statuses' AND column_name='is_system') THEN 
            ALTER TABLE service_statuses ADD COLUMN is_system BOOLEAN DEFAULT FALSE; 
        END IF;

        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='client_id') THEN ALTER TABLE services ADD COLUMN client_id INT REFERENCES clients(id) ON DELETE SET NULL; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='status_id') THEN ALTER TABLE services ADD COLUMN status_id INT REFERENCES service_statuses(id) ON DELETE SET NULL; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='contact_phone') THEN ALTER TABLE services ADD COLUMN contact_phone TEXT; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='contact_name') THEN ALTER TABLE services ADD COLUMN contact_name TEXT; END IF;
        
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='plan_tier') THEN ALTER TABLE users ADD COLUMN plan_tier TEXT DEFAULT 'free'; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='company_slug') THEN ALTER TABLE users ADD COLUMN company_slug TEXT UNIQUE; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='zones') THEN ALTER TABLE users ADD COLUMN zones JSONB DEFAULT '[]'; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='users' AND column_name='status') THEN ALTER TABLE users ADD COLUMN status TEXT DEFAULT 'active'; END IF;

        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='provider_data') THEN ALTER TABLE services ADD COLUMN provider_data JSONB DEFAULT '{}'; END IF;
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='services' AND column_name='import_source') THEN ALTER TABLE services ADD COLUMN import_source TEXT; END IF;

        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='scraped_services' AND column_name='automation_status') THEN ALTER TABLE scraped_services ADD COLUMN automation_status TEXT DEFAULT 'manual'; END IF;

        -- AÑADIDO: Token mágico para el Portal del Cliente
        IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='clients' AND column_name='portal_token') THEN 
            ALTER TABLE clients ADD COLUMN portal_token TEXT UNIQUE; 
            UPDATE clients SET portal_token = substr(md5(random()::text || id::text), 1, 12) WHERE portal_token IS NULL;
            ALTER TABLE clients ALTER COLUMN portal_token SET DEFAULT substr(md5(random()::text || clock_timestamp()::text), 1, 12);
        END IF;

        BEGIN ALTER TABLE users DROP CONSTRAINT IF EXISTS users_phone_key; EXCEPTION WHEN OTHERS THEN NULL; END;
        BEGIN ALTER TABLE users DROP CONSTRAINT IF EXISTS users_email_key; EXCEPTION WHEN OTHERS THEN NULL; END;
      END $$;
    `);

    console.log("✅ DB Sincronizada.");
  } catch (e) { console.error("❌ Error DB:", e); } finally { client.release(); }
}

// HELPERS
function normalizePhone(phone) { let p = String(phone || "").trim().replace(/\s+/g, "").replace(/-/g, ""); if (!p) return ""; if (!p.startsWith("+") && /^[6789]\d{8}/.test(p)) return "+34" + p; return p; }
function signToken(user) { const accountId = user.owner_id || user.id; return jwt.sign({ sub: user.id, email: user.email, phone: user.phone, role: user.role || 'operario', accountId }, JWT_SECRET, { expiresIn: "30d" }); }
function authMiddleware(req, res, next) { const h = req.headers.authorization || ""; const token = h.startsWith("Bearer ") ? h.slice(7) : ""; if (!token) return res.status(401).json({ ok: false, error: "No token" }); try { req.user = jwt.verify(token, JWT_SECRET); next(); } catch { return res.status(401).json({ ok: false, error: "Token inválido" }); } }
function genCode6() { return String(Math.floor(100000 + Math.random() * 900000)); }


// ==========================================
// 🕵️ ROBOT NOTARIO (TRAZABILIDAD TOTAL)
// ==========================================
async function registrarMovimiento(serviceId, userId, action, details) {
    try {
        let userName = "Sistema Robot";
        if (userId) {
            const u = await pool.query("SELECT full_name FROM users WHERE id=$1", [userId]);
            if (u.rowCount > 0) userName = u.rows[0].full_name;
        }
        await pool.query(
            "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
            [serviceId, userName, action, details || ""]
        );
    } catch (e) { console.error("Error Robot Notario:", e); }
}

// 🛡️ MIDDLEWARE DE PLANES
async function requirePlan(req, res, next, feature) {
    try {
        const q = await pool.query("SELECT plan_tier FROM users WHERE id=$1", [req.user.accountId]);
        const userPlan = 'pro'; // Forzamos a 'pro' para tus pruebas actuales sin límites
        const limits = PLAN_LIMITS[userPlan];
        
        if (!limits || !limits[feature]) {
            return res.status(403).json({ ok: false, error: `Función exclusiva del plan Profesional.` });
        }
        next();
    } catch (e) { 
        console.error("Error comprobando plan:", e);
        res.status(500).json({ ok: false, error: "Error interno verificando plan" }); 
    }
}

// ==========================================
// 🔐 RUTAS DE AUTENTICACIÓN (LOGIN) - RESTAURADAS
// ==========================================

// ==========================================
// 🔗 PORTAL PÚBLICO DEL CLIENTE 
// ==========================================
app.get("/public/portal/:token", async (req, res) => {
    try {
        const { token } = req.params;
        const serviceId = req.query.service;

        // 1. Buscamos al cliente por su token
        const qClient = await pool.query("SELECT * FROM clients WHERE portal_token = $1 LIMIT 1", [token]);
        if (qClient.rowCount === 0) return res.status(404).json({ ok: false, error: "Enlace no válido" });

        const client = qClient.rows[0];
        const ownerId = client.owner_id;

        // 2. Buscamos los datos de la empresa
        const qConfig = await pool.query("SELECT full_name, company_logo FROM users WHERE id = $1", [ownerId]);
        const company = { 
            name: qConfig.rows[0]?.full_name || "IntegraRepara", 
            logo: qConfig.rows[0]?.company_logo || null 
        };

        // 3. CONSULTA SEGURA (Con o sin ID)
        let qServices;
        if (serviceId && !isNaN(parseInt(serviceId))) {
            qServices = await pool.query(`
                SELECT s.id, s.service_ref, s.is_urgent, s.raw_data, s.created_at,
                       st.name as real_status_name, st.is_final as is_status_final,
                       u.full_name as worker_name, u.phone as worker_phone
                FROM scraped_services s
                LEFT JOIN users u ON u.id = s.assigned_to
                LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
                WHERE s.id = $1 AND s.owner_id = $2 AND s.provider != 'SYSTEM_BLOCK'
            `, [parseInt(serviceId), ownerId]);
        } else {
            let phoneMatch = String(client.phone || "").replace(/[^0-9]/g, "");
            if (phoneMatch.length > 9) phoneMatch = phoneMatch.slice(-9);
            if (phoneMatch.length < 6) phoneMatch = "TELEFONO_FALSO_123"; 

            qServices = await pool.query(`
                SELECT s.id, s.service_ref, s.is_urgent, s.raw_data, s.created_at,
                       st.name as real_status_name, st.is_final as is_status_final,
                       u.full_name as worker_name, u.phone as worker_phone
                FROM scraped_services s
                LEFT JOIN users u ON u.id = s.assigned_to
                LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
                WHERE s.owner_id = $1 AND s.provider != 'SYSTEM_BLOCK'
                AND s.raw_data::text ILIKE $2
                ORDER BY s.created_at DESC
            `, [ownerId, `%${phoneMatch}%`]);
        }

        const formattedServices = qServices.rows.map(s => {
            return {
                id: s.id,
                title: s.is_urgent ? `🚨 URGENTE: #${s.service_ref}` : `Expediente #${s.service_ref}`,
                description: s.raw_data?.["Descripción"] || s.raw_data?.["DESCRIPCION"] || "Aviso de reparación",
                status_name: s.real_status_name || "En gestión", 
                is_final: s.is_status_final || false, 
                scheduled_date: s.raw_data?.scheduled_date || "",
                scheduled_time: s.raw_data?.scheduled_time || "",
                assigned_worker: s.worker_name || null,
                worker_phone: s.worker_phone || null,   
                raw_data: s.raw_data
            };
        });

        res.json({ ok: true, client: { name: client.full_name }, company, services: formattedServices });

    } catch (e) {
        console.error("🔥 ERROR EN PORTAL:", e.message);
        res.status(500).json({ ok: false, error: e.message });
    }
});

// 2. Obtener huecos disponibles inteligentes (CON HORARIOS DINÁMICOS Y TRAMOS DE 1 HORA)
app.get("/public/portal/:token/slots", async (req, res) => {
    try {
        const { token } = req.params;
        const { serviceId } = req.query;

        const clientQ = await pool.query("SELECT id, owner_id FROM clients WHERE portal_token = $1", [token]);
        if (clientQ.rowCount === 0) return res.status(404).json({ ok: false, error: "Token inválido" });
        const ownerId = clientQ.rows[0].owner_id;

        // EXTRAEMOS LA CONFIGURACIÓN DE HORARIOS DEL PORTAL
        const userQ = await pool.query("SELECT portal_settings FROM users WHERE id = $1", [ownerId]);
        const pSet = userQ.rows[0]?.portal_settings || { m_start:"09:00", m_end:"14:00", a_start:"16:00", a_end:"19:00" };

        // Función para generar huecos cada 60 minutos (Ventanas de 1 hora)
        function genSlots(start, end) {
            if(!start || !end) return [];
            let s = [];
            let [sh, sm] = start.split(':').map(Number);
            let [eh, em] = end.split(':').map(Number);
            let cur = sh * 60 + sm;
            let limit = eh * 60 + em;
            
            // Queremos ventanas de 1 hora completas.
            // Si el límite es 15:00, el último hueco que puede empezar es a las 14:00.
            while(cur + 60 <= limit) { 
                s.push(`${String(Math.floor(cur/60)).padStart(2,'0')}:${String(cur%60).padStart(2,'0')}`);
                cur += 60; // Avanzamos de hora en hora
            }
            return s;
        }
        
        // Creamos la plantilla de horas libres del día
        const morningBase = genSlots(pSet.m_start, pSet.m_end);
        const afternoonBase = genSlots(pSet.a_start, pSet.a_end);

        const serviceQ = await pool.query("SELECT * FROM scraped_services WHERE id=$1", [serviceId]);
        if (serviceQ.rowCount === 0) return res.status(404).json({ ok: false, error: "Servicio no encontrado" });
        
        const service = serviceQ.rows[0];
        const assignedTo = service.assigned_to;
        if (!assignedTo) return res.status(400).json({ ok: false, error: "No hay operario asignado" });

        const raw = service.raw_data || {};
        const targetZone = (raw["Población"] || raw["POBLACION-PROVINCIA"] || raw["Código Postal"] || "").toLowerCase().trim();
        const targetGuildId = raw["guild_id"];

        const agendaQ = await pool.query(`
            SELECT raw_data->>'scheduled_date' as date, 
                   raw_data->>'scheduled_time' as time,
                   raw_data->>'duration_minutes' as duration,
                   raw_data->>'Población' as poblacion,
                   raw_data->>'Código Postal' as cp,
                   provider,
                   raw_data->>'blocked_guild_id' as blocked_guild_id
            FROM scraped_services 
            WHERE assigned_to = $1 
            AND raw_data->>'scheduled_date' IS NOT NULL
            AND raw_data->>'scheduled_date' >= CURRENT_DATE::text
        `, [assignedTo]);

        const agendaMap = {};
        agendaQ.rows.forEach(row => {
            if (row.provider === 'SYSTEM_BLOCK' && row.blocked_guild_id && String(row.blocked_guild_id) !== String(targetGuildId)) {
                return; 
            }

            if (!agendaMap[row.date]) agendaMap[row.date] = { times: [], zone: (row.poblacion || row.cp || "").toLowerCase().trim() };
            
           // Bloqueamos la agenda evaluando la duración estimada real del aviso/bloqueo
            const dur = parseInt(row.duration || 60);
            if (row.time) {
                let [th, tm] = row.time.split(':').map(Number);
                let startMin = th * 60 + tm;
                let endMin = startMin + dur;
                
                // Bloquea cualquier franja de 1 HORA que se solape con este aviso
                // Como ahora generamos horas en punto (o y media, según config), chequeamos si el tramo de 60 mins pisa al servicio
                morningBase.forEach(slot => {
                    let [sh, sm] = slot.split(':').map(Number);
                    let slotStart = sh * 60 + sm;
                    let slotEnd = slotStart + 60;
                    if(slotStart < endMin && slotEnd > startMin) {
                        agendaMap[row.date].times.push(slot);
                    }
                });

                afternoonBase.forEach(slot => {
                    let [sh, sm] = slot.split(':').map(Number);
                    let slotStart = sh * 60 + sm;
                    let slotEnd = slotStart + 60;
                    if(slotStart < endMin && slotEnd > startMin) {
                        agendaMap[row.date].times.push(slot);
                    }
                });
            }
        });

        const availableDays = [];
        let d = new Date();
        d.setDate(d.getDate() + 1); 
        
        let daysAdded = 0;
        while(daysAdded < 10) {
            if (d.getDay() !== 0) { // Omitir domingos
                const dateStr = d.toISOString().split('T')[0];
                const dayData = agendaMap[dateStr];
                let isDayAllowed = true;
                
                if (dayData && dayData.zone && targetZone) {
                    if (!dayData.zone.includes(targetZone) && !targetZone.includes(dayData.zone)) {
                        isDayAllowed = false;
                    }
                }

                if (isDayAllowed) {
                    const takenTimes = dayData ? dayData.times : [];
                    // Filtramos nuestra plantilla contra los huecos ocupados
                    const availMorning = morningBase.filter(t => !takenTimes.includes(t));
                    const availAfternoon = afternoonBase.filter(t => !takenTimes.includes(t));

                    if (availMorning.length > 0 || availAfternoon.length > 0) {
                        availableDays.push({
                            date: dateStr,
                            displayDate: d.toLocaleDateString('es-ES', { weekday: 'long', day: 'numeric', month: 'long' }),
                            morning: availMorning,
                            afternoon: availAfternoon
                        });
                        daysAdded++;
                    }
                }
            }
            d.setDate(d.getDate() + 1);
        }
        res.json({ ok: true, days: availableDays });
    } catch (e) { console.error("Error Slots:", e); res.status(500).json({ ok: false }); }
});


// --- RUTA PARA GUARDAR LA CITA SOLICITADA POR EL CLIENTE ---
app.post("/public/portal/:token/book", async (req, res) => {
    try {
        const { token } = req.params;
        const { serviceId, date, time } = req.body;

        if (!serviceId || !date || !time) return res.status(400).json({ ok: false, error: "Faltan datos" });

        // Verificamos quién es el dueño del portal usando el token
        const clientQ = await pool.query("SELECT id, owner_id FROM clients WHERE portal_token = $1", [token]);
        if (clientQ.rowCount === 0) return res.status(404).json({ ok: false, error: "Token inválido" });
        const ownerId = clientQ.rows[0].owner_id;

        // Recuperamos los datos crudos del servicio
        const serviceQ = await pool.query("SELECT raw_data FROM scraped_services WHERE id=$1 AND owner_id=$2", [serviceId, ownerId]);
        if (serviceQ.rowCount === 0) return res.status(404).json({ ok: false, error: "Servicio no encontrado" });

        const raw = serviceQ.rows[0].raw_data || {};
        
        // Grabamos la solicitud en el jsonb para que el admin la vea en agenda.html
        raw.requested_date = date;
        raw.requested_time = time;
        raw.appointment_status = 'pending';

        await pool.query("UPDATE scraped_services SET raw_data = $1 WHERE id = $2", [JSON.stringify(raw), serviceId]);

        res.json({ ok: true });
    } catch (e) {
        console.error("Error agendando cita (book):", e);
        res.status(500).json({ ok: false, error: "Error interno" });
    }
});

// 3. OBTENER SOLICITUDES PARA EL PANEL DEL ADMIN Y APP OPERARIO
app.get("/agenda/requests", authMiddleware, async (req, res) => {
    try {
        let query = `
            SELECT s.id, s.service_ref, s.raw_data, u.full_name as assigned_name
            FROM scraped_services s
            LEFT JOIN users u ON s.assigned_to = u.id
            WHERE s.owner_id = $1 
            AND s.raw_data->>'appointment_status' = 'pending'
        `;
        const params = [req.user.accountId];

        // Si es operario, solo ve sus propias solicitudes
        if (req.user.role === 'operario' || req.user.role === 'operario_cerrado') {
            query += ` AND s.assigned_to = $2`;
            params.push(req.user.sub);
        }

        query += ` ORDER BY s.created_at ASC`;

        const q = await pool.query(query, params);
        res.json({ ok: true, requests: q.rows });
    } catch (e) { res.status(500).json({ ok: false }); }
});

// 4. APROBAR CITA (Aquí se establece la duración y se envía WA)
app.post("/agenda/requests/:id/approve", authMiddleware, async (req, res) => {
    try {
        const { id } = req.params;
        const { duration } = req.body; // En minutos
        
        const current = await pool.query('SELECT raw_data FROM scraped_services WHERE id=$1 AND owner_id=$2', [id, req.user.accountId]);
        if (current.rowCount === 0) return res.status(404).json({ok: false});
        
        const raw = current.rows[0].raw_data;
        const reqDate = raw.requested_date;
        const reqTime = raw.requested_time;
        
        const statusQ = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name ILIKE '%citado%' LIMIT 1", [req.user.accountId]);
        const idCitado = statusQ.rows[0]?.id || raw.status_operativo;

        const updatedRaw = { 
            ...raw, 
            scheduled_date: reqDate, 
            scheduled_time: reqTime, 
            duration_minutes: duration,
            appointment_status: 'approved',
            status_operativo: idCitado
        };
        delete updatedRaw.requested_date;
        delete updatedRaw.requested_time;

        await pool.query("UPDATE scraped_services SET raw_data=$1 WHERE id=$2", [JSON.stringify(updatedRaw), id]);
        
        // Disparamos WhatsApp oficial de cita confirmada
        await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_date');
        res.json({ok: true});
    } catch (e) { res.status(500).json({ok: false}); }
});

// 5. RECHAZAR CITA
app.post("/agenda/requests/:id/reject", authMiddleware, async (req, res) => {
    try {
        const { id } = req.params;
        const current = await pool.query('SELECT raw_data FROM scraped_services WHERE id=$1 AND owner_id=$2', [id, req.user.accountId]);
        if (current.rowCount === 0) return res.status(404).json({ok: false});
        
        const raw = current.rows[0].raw_data;
        const updatedRaw = { ...raw, appointment_status: 'rejected' };
        delete updatedRaw.requested_date;
        delete updatedRaw.requested_time;

        await pool.query("UPDATE scraped_services SET raw_data=$1 WHERE id=$2", [JSON.stringify(updatedRaw), id]);
        
        // Enviar WA de rechazo con el enlace para que elija otra
        const phone = raw["Teléfono"] || raw["TELEFONO"] || "";
        if (phone) {
            const clientQ = await pool.query("SELECT portal_token FROM clients WHERE phone LIKE $1 AND owner_id=$2 LIMIT 1", [`%${phone.replace('+34', '').trim()}%`, req.user.accountId]);
            const token = clientQ.rows[0]?.portal_token;
            const link = `https://portal.integrarepara.es/?token=${token}&service=${id}`;
            
            const finalMsg = `⚠️ *CITA NO CONFIRMADA*\n\nHola ${raw["Nombre Cliente"] || "Cliente"}. Lamentamos informarte que el técnico no podrá acudir en el horario que solicitaste por un problema de ruta.\n\nPor favor, entra de nuevo en tu portal y elige otro hueco disponible:\n🔗 ${link}`;
            
            await sendWhatsAppAuto(phone, finalMsg, `cliente_${req.user.accountId}`, false);
        }
        res.json({ok: true});
    } catch (e) { res.status(500).json({ok: false}); }
});


// 6. RUTAS DE BLOQUEOS (AGENDA) CON SOPORTE PARA GREMIOS
app.post("/agenda/blocks", authMiddleware, async (req, res) => {
    try {
        const { worker_id, date, time, duration, reason, guild_id, guild_name } = req.body;
        
        const raw = {
            "Nombre Cliente": "BLOQUEO DE AGENDA",
            "Descripción": reason,
            scheduled_date: date,
            scheduled_time: time,
            duration_minutes: duration,
            blocked_guild_id: guild_id || null,     // Guardamos el gremio
            blocked_guild_name: guild_name || null
        };

        await pool.query(`
            INSERT INTO scraped_services (owner_id, provider, service_ref, status, assigned_to, raw_data)
            VALUES ($1, 'SYSTEM_BLOCK', 'BLOCK-' || extract(epoch from now())::int, 'pending', $2, $3)
        `, [req.user.accountId, worker_id, JSON.stringify(raw)]);

        res.json({ ok: true });
    } catch(e) { res.status(500).json({ ok: false }); }
});

app.get("/agenda/blocks", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query(`
            SELECT s.id, u.full_name as worker_name, 
                   s.raw_data->>'scheduled_date' as date,
                   s.raw_data->>'scheduled_time' as time,
                   s.raw_data->>'duration_minutes' as duration,
                   s.raw_data->>'Descripción' as reason,
                   s.raw_data->>'blocked_guild_name' as guild_name
            FROM scraped_services s
            JOIN users u ON s.assigned_to = u.id
            WHERE s.owner_id = $1 AND s.provider = 'SYSTEM_BLOCK'
            ORDER BY s.raw_data->>'scheduled_date' DESC
        `, [req.user.accountId]);

        res.json({ ok: true, blocks: q.rows });
    } catch(e) { res.status(500).json({ ok: false }); }
});

app.delete("/agenda/blocks/:id", authMiddleware, async (req, res) => {
    try {
        await pool.query("DELETE FROM scraped_services WHERE id=$1 AND owner_id=$2 AND provider='SYSTEM_BLOCK'", [req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ ok: false }); }
});

// ==========================================
// 📥 TRASPASO MANUAL (BUZÓN -> PANEL)
// ==========================================
app.post('/providers/import/:id', authMiddleware, async (req, res) => {
    try {
        const { id } = req.params;

        // 1. Cambiamos el estado principal a 'imported' para que el buzón lo marque en azul
        // y detenemos cualquier automatismo pendiente ('completed')
        await pool.query(
            "UPDATE scraped_services SET status = 'imported', automation_status = 'completed' WHERE id = $1 AND owner_id = $2", 
            [id, req.user.accountId]
        );

        // 2. Dejamos constancia en la trazabilidad (Historial)
        await pool.query(
            "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
            [id, "Admin", "Traspaso Manual", "El expediente ha sido validado y asignado desde el buzón."]
        );

        res.json({ ok: true });
    } catch (e) {
        console.error("Error en traspaso manual:", e);
        res.status(500).json({ ok: false, error: "Error en el servidor" });
    }
});

// ==========================================
// ⚙️ MOTOR AUTOMÁTICO DE WHATSAPP Y APP SETTINGS (AÑADIDO PARA SOLUCIONAR ERROR 404)
// ==========================================
app.get("/whatsapp/status", authMiddleware, async (req, res) => {
    try {
        const instanceName = `cliente_${req.user.accountId}`;
        if (!EVOLUTION_BASE_URL || !EVOLUTION_API_KEY) return res.json({ ok: false, error: "Servidor Evolution no configurado" });

        const baseUrl = EVOLUTION_BASE_URL.replace(/\/$/, "");
        const headers = { "Content-Type": "application/json", "apikey": EVOLUTION_API_KEY.trim() };

        // 1. Verificamos si la instancia existe en Evolution
        let statusRes = await fetch(`${baseUrl}/instance/connectionState/${instanceName}`, { headers });
        
        // 2. Si da 404, significa que nunca se ha creado. La creamos y pedimos el QR
        if (statusRes.status === 404) {
            await fetch(`${baseUrl}/instance/create`, {
                method: 'POST', headers,
                body: JSON.stringify({ instanceName: instanceName, qrcode: true, integration: "WHATSAPP-BAILEYS" })
            });
            // Esperamos un poco y volvemos a consultar
            await new Promise(r => setTimeout(r, 2000));
            statusRes = await fetch(`${baseUrl}/instance/connectionState/${instanceName}`, { headers });
        }

        const data = await statusRes.json();

        // 3. Devolvemos el estado
        if (data.instance?.state === 'open') {
            return res.json({ ok: true, state: 'open', instanceName });
        } else {
            // Buscamos el QR
            const qrRes = await fetch(`${baseUrl}/instance/connect/${instanceName}`, { headers });
            const qrData = await qrRes.json();
            return res.json({ ok: true, state: 'connecting', qr: qrData.base64 || qrData.code });
        }
    } catch (e) { 
        console.error("Error consultando estado WA:", e);
        res.status(500).json({ ok: false, error: "Error de conexión con el motor WA" }); 
    }
});


app.get("/whatsapp/settings", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT wa_settings FROM users WHERE id=$1", [req.user.accountId]);
        res.json({ ok: true, settings: q.rows[0]?.wa_settings || {} });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.post("/whatsapp/settings", authMiddleware, async (req, res) => {
    try {
        await pool.query("UPDATE users SET wa_settings = $1 WHERE id=$2", [JSON.stringify(req.body), req.user.accountId]);
        res.json({ ok: true });
    } catch (e) { res.status(500).json({ ok: false }); }
});

// ==========================================
// 💬 NÚCLEO DE ENVÍO WHATSAPP (EVOLUTION API)
// ==========================================
async function sendWhatsAppAuto(phone, message, instanceName, useDelay = false) {
    if (!EVOLUTION_BASE_URL || !EVOLUTION_API_KEY) {
        console.error("⚠️ WhatsApp omitido: Servidor Evolution no configurado.");
        return false;
    }
    try {
        const baseUrl = EVOLUTION_BASE_URL.replace(/\/$/, "");
        const url = `${baseUrl}/message/sendText/${instanceName}`;
        
        const response = await fetch(url, {
            method: 'POST',
            headers: {
                "Content-Type": "application/json",
                "apikey": EVOLUTION_API_KEY.trim()
            },
            body: JSON.stringify({
                number: phone,
                text: message,
                delay: useDelay ? 2000 : 0
            })
        });

        if (!response.ok) {
            console.error("❌ Fallo enviando WhatsApp. Estado Evolution:", response.status);
            return false;
        }
        return true;
    } catch (error) {
        console.error("❌ Error de red conectando con Evolution API:", error.message);
        return false;
    }
}

// ==========================================
// 🔔 DISPARADOR DE EVENTOS DE WHATSAPP (CON MODO SEGURO)
// ==========================================
async function triggerWhatsAppEvent(ownerId, serviceId, eventType) {
    try {
        const userQ = await pool.query("SELECT wa_settings FROM users WHERE id=$1", [ownerId]);
        const settings = userQ.rows[0]?.wa_settings || {};
        const checkSwitch = eventType === 'wa_evt_update' ? 'wa_evt_date' : eventType;
        if (!settings[checkSwitch]) return false; // Botón apagado = No enviado

        const tplTypeMap = {
            'wa_evt_welcome': 'welcome',
            'wa_evt_assigned': 'assigned',
            'wa_evt_date': 'appointment',
            'wa_evt_update': 'update',
            'wa_evt_onway': 'on_way',
            'wa_evt_survey': 'survey'
        };
        const tplQ = await pool.query("SELECT content FROM message_templates WHERE owner_id=$1 AND type=$2", [ownerId, tplTypeMap[eventType]]);
        if (tplQ.rowCount === 0 || !tplQ.rows[0].content) return false; 
        let text = tplQ.rows[0].content;

        const svcQ = await pool.query("SELECT * FROM scraped_services WHERE id=$1", [serviceId]);
        if (svcQ.rowCount === 0) return false;
        const s = svcQ.rows[0];
        const raw = s.raw_data || {};
        
        // 1. EXTRAER TELÉFONO DEL CLIENTE LIMPIO
        let rawPhone = raw["Teléfono"] || raw["TELEFONO"] || raw["TELEFONOS"] || "";
        let cleanPhoneToMatch = String(rawPhone).replace(/\D/g, "");
        if (cleanPhoneToMatch.length > 9) cleanPhoneToMatch = cleanPhoneToMatch.slice(-9);
        if (cleanPhoneToMatch.length < 9) return false; // Si no hay teléfono válido, cancelamos

        const finalPhoneToSend = "34" + cleanPhoneToMatch;

        // 2. Buscamos el token del portal cliente (o lo creamos si no existe)
        let token = "ERROR";
        const clientQ = await pool.query("SELECT portal_token FROM clients WHERE phone LIKE $1 AND owner_id=$2 LIMIT 1", [`%${cleanPhoneToMatch}%`, ownerId]);
        
        if (clientQ.rowCount > 0) {
            token = clientQ.rows[0].portal_token;
        } else {
            const cName = raw["Nombre Cliente"] || raw["CLIENTE"] || "Asegurado";
            const cAddr = raw["Dirección"] || raw["DOMICILIO"] || "";
            const insertC = await pool.query(
                "INSERT INTO clients (owner_id, full_name, phone, addresses) VALUES ($1, $2, $3, $4) RETURNING portal_token", 
                [ownerId, cName, finalPhoneToSend, JSON.stringify([cAddr])]
            );
            token = insertC.rows[0].portal_token;
        }
        
        const linkMagico = `https://portal.integrarepara.es/?token=${token}&service=${serviceId}`;

        let fechaLimpia = raw["scheduled_date"] || "la fecha acordada";
        if (fechaLimpia.includes("-")) {
            const partes = fechaLimpia.split("-");
            if (partes.length === 3) {
                const fechaObj = new Date(partes[0], partes[1] - 1, partes[2], 12, 0, 0);
                const diaSemana = fechaObj.toLocaleDateString('es-ES', { weekday: 'long' });
                fechaLimpia = `(${diaSemana}) ${partes[2]}/${partes[1]}/${partes[0]}`; 
            }
        }

        text = text.replace(/{{NOMBRE}}/g, raw["Nombre Cliente"] || raw["CLIENTE"] || "Cliente");
        text = text.replace(/{{DIRECCION}}/g, raw["Dirección"] || raw["DOMICILIO"] || "su domicilio");
        text = text.replace(/{{FECHA}}/g, fechaLimpia);
        text = text.replace(/{{HORA}}/g, raw["scheduled_time"] || "la hora acordada");
        text = text.replace(/{{COMPANIA}}/g, raw["Compañía"] || raw["COMPAÑIA"] || "su Aseguradora");
        text = text.replace(/{{REFERENCIA}}/g, s.service_ref || raw["Referencia"] || raw["Nº Siniestro"] || serviceId);
        text = text.replace(/{{ENLACE}}/g, linkMagico);

        const useDelay = settings.wa_delay_enabled !== false;
        const instanceName = `cliente_${ownerId}`;
        
        // ====================================================
        // 🛑 MODO PRUEBAS (Desvía los mensajes a tu móvil)
        // ====================================================
        const MODO_PRUEBAS = true;         // Cambia esto a 'false' para enviar a clientes reales
        const MI_TELEFONO = "34667248132"; // <--- TU NÚMERO DE MÓVIL YA CONFIGURADO

        if (MODO_PRUEBAS) {
            console.log(`🛡️ [MODO PRUEBAS] Enviando WA al admin (${MI_TELEFONO}) en lugar de al cliente (${finalPhoneToSend})`);
            const textoPrueba = `*(SIMULACIÓN PARA CLIENTE: ${finalPhoneToSend})*\n\n` + text;
            return await sendWhatsAppAuto(MI_TELEFONO, textoPrueba, instanceName, useDelay);
        } else {
            console.log(`[WA] Enviando mensaje real al cliente: ${finalPhoneToSend}`);
            return await sendWhatsAppAuto(finalPhoneToSend, text, instanceName, useDelay);
        }

    } catch (e) { 
        console.error("Error Motor WA:", e.message); 
        return false; 
    }
}

app.post("/providers/credentials", authMiddleware, async (req, res) => {
    try {
        const { provider, username, password } = req.body;
        const passwordSafe = Buffer.from(password).toString('base64'); 
        await pool.query(`
            INSERT INTO provider_credentials (owner_id, provider, username, password_hash)
            VALUES ($1, $2, $3, $4)
            ON CONFLICT (owner_id, provider) DO UPDATE SET username = EXCLUDED.username, password_hash = EXCLUDED.password_hash, status = 'active'
        `, [req.user.accountId, provider, username, passwordSafe]);
        res.json({ ok: true });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.get("/providers/scraped", authMiddleware, async (req, res) => {
    try {
        // Pedimos a Postgres que calcule los SEGUNDOS que faltan y enviamos la cuenta exacta 
        const q = await pool.query(`
            SELECT 
                s.*, 
                ap.token as active_token,
                EXTRACT(EPOCH FROM (ap.expires_at - CURRENT_TIMESTAMP)) as seconds_left,
                u.full_name as current_worker_name,
                (SELECT json_agg(json_build_object('name', u2.full_name, 'phone', u2.phone)) 
                 FROM assignment_pings ap2 
                 JOIN users u2 ON ap2.user_id = u2.id 
                 WHERE ap2.scraped_id = s.id AND ap2.status IN ('expired', 'rejected')) as attempted_workers_data
            FROM scraped_services s
            LEFT JOIN assignment_pings ap ON s.id = ap.scraped_id AND ap.status = 'pending'
            LEFT JOIN users u ON ap.user_id = u.id
            WHERE s.owner_id = $1 
            ORDER BY s.created_at DESC
        `, [req.user.accountId]);
        
        const services = q.rows.map(row => {
            if (row.seconds_left && row.seconds_left > 0) {
                row.token_expires_at = new Date(Date.now() + (row.seconds_left * 1000));
            } else if (row.seconds_left <= 0) {
                row.token_expires_at = new Date(Date.now() - 1000); 
            }
            delete row.seconds_left;
            return row;
        });

        res.json({ ok: true, services });
    } catch (e) { 
        res.status(500).json({ ok: false }); 
    }
});

// ==========================================
// 🤖 RUTA DE AUTOMATIZACIÓN (MEJORADA)
// ==========================================
app.post("/providers/automate/:id", authMiddleware, async (req, res) => {
    const { id } = req.params;
    console.log(`\n🤖 [AUTOMATE] Iniciando proceso para ID: ${id}`);
    
    try {
        const { guild_id, cp, useDelay } = req.body;

        if (!guild_id) {
            console.error("❌ [AUTOMATE] Faltan datos: guild_id");
            return res.status(400).json({ ok: false, error: "Falta Gremio" });
        }

        // 1. Verificar si el expediente existe
        const serviceQ = await pool.query("SELECT raw_data, provider, owner_id FROM scraped_services WHERE id = $1", [id]);
        if (serviceQ.rowCount === 0) {
            console.error(`❌ [AUTOMATE] Expediente ${id} no encontrado en la DB`);
            return res.status(404).json({ ok: false, error: "Expediente no encontrado" });
        }
        
        // 2. Buscar operarios que cumplan Gremio + Zona (CP) + Activos
        let workersQ = await pool.query(`
            SELECT u.id, u.full_name, u.phone 
            FROM users u
            JOIN user_guilds ug ON u.id = ug.user_id
            WHERE u.owner_id = $1 
            AND u.role = 'operario' 
            AND u.status = 'active'
            AND ug.guild_id = $2 
            AND u.zones::jsonb @> $3::jsonb
        `, [req.user.accountId, guild_id, JSON.stringify([{ cps: (cp || "00000").toString() }])]);

        // MEJORA: Si no hay nadie para ese CP exacto (o si no se puso CP en el presupuesto),
        // buscamos a CUALQUIER operario de ese gremio
        if (workersQ.rowCount === 0) {
            console.log(`⚠️ [AUTOMATE] No hay operario para el CP exacto, buscando a cualquiera del gremio ${guild_id}...`);
            workersQ = await pool.query(`
                SELECT u.id, u.full_name, u.phone 
                FROM users u
                JOIN user_guilds ug ON u.id = ug.user_id
                WHERE u.owner_id = $1 
                AND u.role = 'operario' 
                AND u.status = 'active'
                AND ug.guild_id = $2 
            `, [req.user.accountId, guild_id]);
        }

        if (workersQ.rowCount === 0) {
            console.warn(`❌ [AUTOMATE] No hay operarios activos para el Gremio:${guild_id}`);
            return res.status(404).json({ ok: false, error: "No hay operarios disponibles para este gremio" });
        }

        // 3. Marcar como "En progreso"
        await pool.query("UPDATE scraped_services SET automation_status = 'in_progress' WHERE id = $1", [id]);
        
        const worker = workersQ.rows[Math.floor(Math.random() * workersQ.rows.length)];
        const token = crypto.randomBytes(16).toString('hex');

        // 4. Crear el Ping de asignación (5 minutos)
        await pool.query(`
            INSERT INTO assignment_pings (scraped_id, user_id, token, expires_at) 
            VALUES ($1, $2, $3, CURRENT_TIMESTAMP + INTERVAL '5 minutes')
        `, [id, worker.id, token]);

        // 5. Preparar mensaje
        const horaCaducidad = new Date(Date.now() + 5 * 60 * 1000).toLocaleTimeString('es-ES', { 
            hour: '2-digit', minute: '2-digit', timeZone: 'Europe/Madrid' 
        });
        
        const link = `https://web.integrarepara.es/aceptar.html?t=${token}`;
        const cpMostrar = (cp && cp !== "00000") ? cp : "Zona asignada";
        const mensaje = `🛠️ *NUEVO SERVICIO DISPONIBLE*\n\n👤 *Operario:* ${worker.full_name}\n📍 *Zona:* ${cpMostrar}\n⏱️ *Expira:* ${horaCaducidad}\n\nRevisa y acepta aquí:\n🔗 ${link}`;

        // 6. Envío WA
        const instanceName = `cliente_${req.user.accountId}`;
        sendWhatsAppAuto(worker.phone, mensaje, instanceName, useDelay).catch(e => console.error("Error WA Automate:", e.message));

        console.log(`✅ [AUTOMATE] Asignación enviada a ${worker.full_name}`);

        // --- INICIO TRAZABILIDAD ---
        await registrarMovimiento(id, req.user.sub, "Bolsa Automática", `Aviso enviado a la bolsa. Notificación disparada a: ${worker.full_name}`);
        // --- FIN TRAZABILIDAD ---

        res.json({ ok: true, message: "Automatismo iniciado con " + worker.full_name });

    } catch (e) { 
        console.error("❌ [AUTOMATE] Error Crítico:", e.message);
        res.status(500).json({ ok: false, error: e.message }); 
    }
});

// ==========================================
// 📝 ACTUALIZACIÓN DE EXPEDIENTES (Y ESCUDO ANTI-ARCHIVO)
// ==========================================
app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
    const { id } = req.params;
    let { automation_status, status, name, phone, address, cp, description, guild_id, assigned_to, assigned_to_name, internal_notes, client_notes, is_urgent, ...extra } = req.body;
    
    try {
        // 1. Cambio de estado de automatización (ej. detener bolsa)
        if (automation_status) {
            await pool.query(`UPDATE scraped_services SET automation_status = $1 WHERE id = $2 AND owner_id = $3`, [automation_status, id, req.user.accountId]);
            return res.json({ ok: true });
        }

        // 2. ESCUDO ANTI-ARCHIVO Y LOG AUTOMÁTICO (CON WA AL OPERARIO)
        if (status === 'archived') {
            const checkQ = await pool.query(`
                SELECT raw_data, assigned_to, service_ref,
                       (SELECT is_final FROM service_statuses WHERE id::text = raw_data->>'status_operativo') as is_final
                FROM scraped_services WHERE id = $1 AND owner_id = $2
            `, [id, req.user.accountId]);

            if (checkQ.rowCount > 0) {
                const row = checkQ.rows[0];
                const isFinal = row.is_final === true;
                const hasWorker = row.assigned_to !== null;
                let raw = row.raw_data || {};
                const serviceRef = row.service_ref || raw["Referencia"] || id;

                // SI tiene trabajador asignado Y NO está en un estado final operativo
                if (hasWorker && !isFinal) {
                    if (!raw.cerrado_proveedor) {
                        raw.cerrado_proveedor = true;
                        await pool.query(`UPDATE scraped_services SET raw_data = $1 WHERE id = $2 AND owner_id = $3`, [JSON.stringify(raw), id, req.user.accountId]);
                        
                        // LOG: INTENTO DE CIERRE
                        await pool.query(
                            "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
                            [id, 'Sistema (Robot)', 'Intento de Cierre', 'La compañía ha cerrado el aviso, pero se mantiene vivo en IntegraRepara.']
                        );

                        // ALERTA URGENTE AL OPERARIO POR WHATSAPP
                        const workerQ = await pool.query("SELECT full_name, phone FROM users WHERE id=$1", [row.assigned_to]);
                        if (workerQ.rowCount > 0) {
                            const w = workerQ.rows[0];
                            const msg = `🚨 *¡ALERTA URGENTE!* 🚨\n\nHola ${w.full_name}, la compañía aseguradora acaba de *CERRAR/ANULAR* el expediente *#${serviceRef}* en su sistema.\n\n⚠️ *NO ACUDAS NI REALICES EL TRABAJO* si no lo has hecho ya, porque no se va a cobrar.\n\nPor favor, contacta con la oficina.`;
                            
                            sendWhatsAppAuto(w.phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
                            
                            await pool.query(
                                "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
                                [id, 'Sistema (Robot)', 'Alerta de Cancelación', `WhatsApp de emergencia enviado a ${w.full_name}.`]
                            );
                        }
                    }
                    return res.json({ ok: true, note: "Protegido de archivo automático y operario alertado" });
                }
            }

            // Si no tiene trabajador, o ya está finalizado
            await pool.query(`UPDATE scraped_services SET status = 'archived', automation_status = 'manual' WHERE id = $1 AND owner_id = $2`, [id, req.user.accountId]);
            await pool.query(
                "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
                [id, 'Sistema', 'Archivado', 'El expediente se ha cerrado definitivamente y movido al histórico.']
            );
            return res.json({ ok: true });
        }

        // 3. ACTUALIZACIÓN MANUAL NORMAL DE LA FICHA
        const current = await pool.query('SELECT raw_data, assigned_to, status, is_urgent FROM scraped_services WHERE id = $1 AND owner_id = $2', [id, req.user.accountId]);
        if (current.rows.length === 0) return res.status(404).json({ error: 'No encontrado' });
        
        let rawActual = current.rows[0].raw_data || {};
        let oldStatus = rawActual.status_operativo || null;
        let newStatus = extra.status_operativo || oldStatus;
        if (newStatus === "") newStatus = null;

        const oldWorkerId = current.rows[0].assigned_to || rawActual.assigned_to;
        let finalAssignedTo = assigned_to !== undefined ? (assigned_to === "" ? null : assigned_to) : oldWorkerId;
        
        // --- AVISO AL OPERARIO (ASIGNACIÓN NUEVA / DESASIGNACIÓN) ---
        if (finalAssignedTo !== oldWorkerId) {
            if (finalAssignedTo) {
                const workerQ = await pool.query("SELECT full_name, phone FROM users WHERE id=$1", [finalAssignedTo]);
                if (workerQ.rowCount > 0) {
                    const w = workerQ.rows[0];
                    const ref = rawActual.service_ref || rawActual["Referencia"] || id;
                    const dir = address || rawActual["Dirección"] || "Ver ficha";
                    const msg = `🛠️ *NUEVO SERVICIO ASIGNADO*\n\nHola ${w.full_name}, se te ha asignado el expediente *#${ref}*.\n📍 Población/Zona: ${cp || rawActual["Población"] || dir}\n\nRevisa tu panel de operario para agendar la cita.`;
                    sendWhatsAppAuto(w.phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
                }
            } else if (oldWorkerId && !finalAssignedTo) {
                const workerQ = await pool.query("SELECT full_name, phone FROM users WHERE id=$1", [oldWorkerId]);
                if (workerQ.rowCount > 0) {
                    const w = workerQ.rows[0];
                    const ref = rawActual.service_ref || rawActual["Referencia"] || id;
                    const msg = `⚠️ *AVISO DE DESASIGNACIÓN*\n\nHola ${w.full_name}, se te ha retirado el expediente *#${ref}*.\n\nYa no tienes que atender este servicio.`;
                    sendWhatsAppAuto(w.phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
                }
            }
        }

        // --- LÓGICA DE ESTADOS Y WHATSAPP AL CLIENTE ---
        if (newStatus && newStatus !== oldStatus) {
            const statusQ = await pool.query("SELECT name FROM service_statuses WHERE id=$1", [newStatus]);
            const stName = (statusQ.rows[0]?.name || "").toLowerCase();

            if ((stName.includes('pendiente') && !stName.includes('cita')) || stName.includes('desasignado') || stName.includes('asignado') || stName.includes('anulado') || stName.includes('esperando')) {
                if (!extra.scheduled_date) {
                    extra.scheduled_date = "";
                    extra.scheduled_time = "";
                }
            }

            if (stName.includes('asignado') && finalAssignedTo) {
                const waEnviadoExito = await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_assigned');
                if (waEnviadoExito) {
                    const estadoEsperando = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name='Esperando al Cliente' LIMIT 1", [req.user.accountId]);
                    if(estadoEsperando.rowCount > 0) {
                        newStatus = estadoEsperando.rows[0].id;
                        extra.status_operativo = newStatus;
                        await registrarMovimiento(id, req.user.sub, "Robot WA", "WhatsApp de asignación entregado. Estado cambiado a Esperando al Cliente.");
                    }
                } else {
                    await registrarMovimiento(id, req.user.sub, "Robot WA", "WhatsApp de asignación falló o está desactivado.");
                }
            } 
        }

        // 4. UNIFICAR DATOS FINALES
        const updatedRawData = { 
            ...rawActual, ...extra,
            "Nombre Cliente": name || rawActual["Nombre Cliente"], 
            "Teléfono": phone || rawActual["Teléfono"], 
            "Dirección": address || rawActual["Dirección"],
            "Código Postal": cp || rawActual["Código Postal"],
            "Descripción": description || rawActual["Descripción"],
            "guild_id": guild_id,
            "assigned_to": finalAssignedTo,
            "assigned_to_name": assigned_to_name,
            "internal_notes": internal_notes,
            "client_notes": client_notes,
            "Urgente": is_urgent ? "Sí" : "No",
            "status_operativo": newStatus
        };

        let currentDbStatus = current.rows[0].status;
        const finalIsUrgent = is_urgent !== undefined ? is_urgent : current.rows[0].is_urgent;

        await pool.query(
            `UPDATE scraped_services SET raw_data = $1, status = $2, is_urgent = $3, assigned_to = $4 WHERE id = $5 AND owner_id = $6`, 
            [JSON.stringify(updatedRawData), currentDbStatus, finalIsUrgent, finalAssignedTo, id, req.user.accountId]
        );
        
        await registrarMovimiento(id, req.user.sub, "Edición / Asignación", "Expediente actualizado o asignado.");

        res.json({ ok: true });
    } catch (error) { 
        console.error("Error actualización manual:", error);
        res.status(500).json({ error: 'Error' }); 
    }
});

// Validar si una referencia ya existe para este dueño
app.get("/services/check-ref", authMiddleware, async (req, res) => {
    try {
        const { ref } = req.query;
        const q = await pool.query(
            "SELECT id FROM scraped_services WHERE service_ref = $1 AND owner_id = $2", 
            [ref, req.user.accountId]
        );
        res.json({ exists: q.rowCount > 0 });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.get("/discovery/keys/:provider", authMiddleware, async (req, res) => {
    try {
        const { provider } = req.params;
        const rawServices = await pool.query("SELECT raw_data FROM scraped_services WHERE owner_id=$1 AND provider=$2 ORDER BY id DESC LIMIT 1", [req.user.accountId, provider]);
        const mappings = await pool.query("SELECT original_key, target_key, is_ignored FROM variable_mappings WHERE owner_id=$1 AND provider=$2", [req.user.accountId, provider]);
        const mapDict = {}; mappings.rows.forEach(m => { mapDict[m.original_key] = m; });
        const discoverySet = new Set(); const samples = {};
        rawServices.rows.forEach(row => { const data = row.raw_data; if (data && typeof data === 'object') { Object.keys(data).forEach(k => { discoverySet.add(k); if (!samples[k]) samples[k] = data[k]; }); } });
        const result = Array.from(discoverySet).map(key => ({ original: key, sample: samples[key] || "(Vacío)", mappedTo: mapDict[key]?.target_key || "", ignored: mapDict[key]?.is_ignored || false })).sort((a, b) => a.original.localeCompare(b.original));
        res.json({ ok: true, keys: result });
    } catch (e) { res.status(500).json({ ok: false }); }
});


// AÑADIDO Y MEJORADO: Ruta para el Panel Operativo (Muestra TODOS los activos o filtra por operario)
// RUTA PARA EL PANEL OPERATIVO (ADMIN VE TODO, OPERARIO VE LO SUYO)
// AÑADIDO Y MEJORADO: Ruta para el Panel Operativo (Muestra TODOS los activos o filtra por operario)
// RUTA PARA EL PANEL OPERATIVO (MUESTRA SOLO ACTIVOS)
app.get("/services/active", authMiddleware, async (req, res) => {
    try {
        let query = `
            SELECT 
                s.*, 
                u.full_name as assigned_name
            FROM scraped_services s
            LEFT JOIN users u ON s.assigned_to = u.id
            WHERE s.owner_id = $1 
            AND s.status != 'archived' 
        `;
        // ^^^ ¡Ahí le hemos devuelto el filtro para que oculte los archivados a todo el mundo!

        const params = [req.user.accountId];

        // SI ES OPERARIO: Ve solo lo suyo
        if (req.user.role === 'operario') {
            query += ` AND s.assigned_to = $2`;
            params.push(req.user.sub);
        } 
        
        query += ` ORDER BY s.created_at DESC`;
        
        const q = await pool.query(query, params);
        res.json({ ok: true, services: q.rows });
    } catch (e) { 
        console.error("Error al cargar /services/active:", e);
        res.status(500).json({ ok: false }); 
    }
});

// AÑADIDO: Ruta para fijar la cita o el estado operativo (CORREGIDA PARA NO PERDER LA FECHA)
// AÑADIDO: Ruta para fijar la cita o el estado operativo (CORREGIDA PARA NO PERDER LA FECHA Y ENVIAR BIEN EL WHATSAPP)
app.put("/services/set-appointment/:id", authMiddleware, async (req, res) => {
    try {
        const { id } = req.params;
        let { date, time, status_operativo, skip_survey, ...extra } = req.body; 
        
        const current = await pool.query('SELECT raw_data, assigned_to FROM scraped_services WHERE id = $1 AND owner_id = $2', [id, req.user.accountId]);
        if (current.rowCount === 0) return res.status(404).json({ ok: false, error: 'No encontrado' });
        
        const rawActual = current.rows[0].raw_data || {};
        
        // --- MEJORA: MANTENER FECHA SI NO SE ENVÍA ---
        let newDate = (date !== undefined) ? date : (rawActual.scheduled_date || "");
        let newTime = (time !== undefined) ? time : (rawActual.scheduled_time || "");
        
        let finalAssignedTo = current.rows[0].assigned_to; 

        if (status_operativo === "") status_operativo = null;

        let stName = "";
        if (status_operativo) {
            const statusQ = await pool.query("SELECT name FROM service_statuses WHERE id=$1", [status_operativo]);
            stName = (statusQ.rows[0]?.name || "").toLowerCase();
        }

        // --- REGLA ESTRICTA: BORRAR FECHAS SOLO SI SE ANULA O RETROCEDE A PENDIENTE ---
        if (stName.includes('pendiente') || stName.includes('desasignado') || stName.includes('asignado') || stName.includes('anulado') || stName.includes('esperando')) {
            newDate = "";
            newTime = "";
        }

        // 1. PRIMERO GUARDAMOS EN BASE DE DATOS (Para que los motores puedan leer la info real)
        const updatedRawData = { 
            ...rawActual, 
            ...extra, 
            "scheduled_date": newDate, 
            "scheduled_time": newTime, 
            "status_operativo": status_operativo 
        };

        await pool.query('UPDATE scraped_services SET raw_data = $1, assigned_to = $2 WHERE id = $3 AND owner_id = $4', 
            [JSON.stringify(updatedRawData), finalAssignedTo, id, req.user.accountId]
        );

        // 2. DESPUÉS LANZAMOS LOS EVENTOS (Con la BBDD ya actualizada)
        if (stName.includes('asignado')) {
            const waEnviadoExito = await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_assigned');
            if (waEnviadoExito) {
                const estadoEsperando = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name='Esperando al Cliente' LIMIT 1", [req.user.accountId]);
                if (estadoEsperando.rowCount > 0) {
                    updatedRawData.status_operativo = estadoEsperando.rows[0].id;
                    await pool.query('UPDATE scraped_services SET raw_data = $1 WHERE id = $2 AND owner_id = $3', [JSON.stringify(updatedRawData), id, req.user.accountId]);
                }
            }
        } 
        else if (stName.includes('esperando') || stName.includes('pendiente de cita')) {
            await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_assigned');
        }
        else if (stName.includes('pendiente de asignar') || stName.includes('desasignado')) {
            const oldWorkerId = finalAssignedTo || rawActual.assigned_to;
            if (oldWorkerId) {
                const workerQ = await pool.query("SELECT full_name, phone FROM users WHERE id=$1", [oldWorkerId]);
                if (workerQ.rowCount > 0) {
                    const w = workerQ.rows[0];
                    const ref = rawActual.service_ref || rawActual["Referencia"] || id;
                    const msg = `⚠️ *AVISO DE DESASIGNACIÓN*\n\nHola ${w.full_name}, se te ha retirado el expediente *#${ref}*.\n\nYa no tienes que atender este servicio.`;
                    sendWhatsAppAuto(w.phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
                }
            }
            // Limpieza de datos si se desasigna
            updatedRawData.assigned_to = null;
            updatedRawData.assigned_to_name = null;
            finalAssignedTo = null; 
            await pool.query('UPDATE scraped_services SET raw_data = $1, assigned_to = null WHERE id = $2 AND owner_id = $3', [JSON.stringify(updatedRawData), id, req.user.accountId]);
        } 
        else if (stName.includes('citado') && newDate !== "" && date !== undefined) {
            const oldDate = rawActual.scheduled_date || "";
            if (oldDate === "") await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_date'); 
            else if (oldDate !== newDate) await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_update'); 
        } else if (stName.includes('camino')) {
            await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_onway'); 
        } else if (stName.includes('finalizado') || stName.includes('terminado')) {
            if (!skip_survey) { // Solo lo mandamos si el operario no dijo que NO
                await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_survey'); 
            }
        }

        // --- INICIO TRAZABILIDAD ---
        let logDetalle = `Estado modificado a: ${stName.toUpperCase() || 'MODIFICADO'}.`;
        if (newDate) logDetalle += ` Cita para el ${newDate} a las ${newTime}.`;
        await registrarMovimiento(id, req.user.sub, "Actualización desde App", logDetalle);
        // --- FIN TRAZABILIDAD ---
        
        res.json({ ok: true });
    } catch (e) { 
        console.error("Error agendando cita:", e); 
        res.status(500).json({ ok: false }); 
    }
});

// ==========================================
// 📞 RUTA PARA CLIENTE NO LOCALIZADO
// ==========================================

// ==========================================
// 📞 RUTA PARA CLIENTE NO LOCALIZADO
// ==========================================
app.post("/services/not-found/:id", authMiddleware, async (req, res) => {
    try {
        const { id } = req.params;
        const current = await pool.query('SELECT raw_data, provider, owner_id FROM scraped_services WHERE id=$1 AND owner_id=$2', [id, req.user.accountId]);
        
        if (current.rowCount === 0) return res.status(404).json({ok: false});
        
        const raw = current.rows[0].raw_data || {};
        
        // Sumamos 1 al contador de llamadas
        const currentCalls = parseInt(raw.called_times || 0) + 1;
        raw.called_times = currentCalls;
        
        // Guardamos en la base de datos
        await pool.query("UPDATE scraped_services SET raw_data=$1 WHERE id=$2", [JSON.stringify(raw), id]);

        // Intentamos enviar el WhatsApp usando la plantilla
        let rawPhone = raw["Teléfono"] || raw["TELEFONOS"] || raw["TELEFONO"] || "";
        let cleanPhoneToMatch = String(rawPhone).replace(/\D/g, "");
        if (cleanPhoneToMatch.length > 9) cleanPhoneToMatch = cleanPhoneToMatch.slice(-9);

        if (cleanPhoneToMatch.length >= 9) { // Solo intentamos enviar si hay un número válido
            
            // 🚨 Búsqueda flexible por si la plantilla se guardó con otro nombre interno
            const tplQ = await pool.query("SELECT content FROM message_templates WHERE owner_id=$1 AND type IN ('not_found', 'unreachable', 'no_reply') LIMIT 1", [req.user.accountId]);
            let text = tplQ.rowCount > 0 && tplQ.rows[0].content 
                ? tplQ.rows[0].content 
                : `Hola {{NOMBRE}}, soy el técnico de {{COMPANIA}}. He intentado contactar contigo para agendar tu reparación (Exp. {{REFERENCIA}}), pero no ha sido posible. Por favor, pulsa aquí para elegir tu cita: {{ENLACE}}`;

            const finalPhoneToSend = "34" + cleanPhoneToMatch;
            let token = "ERROR";
            const clientQ = await pool.query("SELECT portal_token FROM clients WHERE phone LIKE $1 AND owner_id=$2 LIMIT 1", [`%${cleanPhoneToMatch}%`, req.user.accountId]);
            
            if (clientQ.rowCount > 0) {
                token = clientQ.rows[0].portal_token;
            } else {
                const newToken = crypto.randomBytes(6).toString('hex');
                const insertC = await pool.query(
                    "INSERT INTO clients (owner_id, full_name, phone, addresses, portal_token) VALUES ($1, $2, $3, '[]', $4) RETURNING portal_token", 
                    [req.user.accountId, raw["Nombre Cliente"] || "Cliente", finalPhoneToSend, newToken]
                );
                token = insertC.rows[0].portal_token;
            }

            const linkMagico = `https://portal.integrarepara.es/?token=${token}&service=${id}`;

            let fechaLimpia = raw["scheduled_date"] || "la fecha acordada";
            if (fechaLimpia.includes("-")) {
                const partes = fechaLimpia.split("-");
                if (partes.length === 3) {
                    const fechaObj = new Date(partes[0], partes[1] - 1, partes[2], 12, 0, 0);
                    const diaSemana = fechaObj.toLocaleDateString('es-ES', { weekday: 'long' });
                    fechaLimpia = `(${diaSemana}) ${partes[2]}/${partes[1]}/${partes[0]}`; 
                }
            }

            // REEMPLAZO DE TODAS LAS VARIABLES (Como en la foto)
            text = text.replace(/{{NOMBRE}}/g, raw["Nombre Cliente"] || raw["CLIENTE"] || "Cliente");
            text = text.replace(/{{DIRECCION}}/g, raw["Dirección"] || raw["DOMICILIO"] || "su domicilio");
            text = text.replace(/{{FECHA}}/g, fechaLimpia);
            text = text.replace(/{{HORA}}/g, raw["scheduled_time"] || "la hora acordada");
            text = text.replace(/{{COMPANIA}}/g, raw["Compañía"] || raw["COMPAÑIA"] || "su Aseguradora");
            text = text.replace(/{{REFERENCIA}}/g, current.rows[0].service_ref || id);
            text = text.replace(/{{ENLACE}}/g, linkMagico);

            const userQ = await pool.query("SELECT wa_settings FROM users WHERE id=$1", [req.user.accountId]);
            const settings = userQ.rows[0]?.wa_settings || {};
            const useDelay = settings.wa_delay_enabled !== false;

            // MODO PRUEBAS: Redirigir el mensaje a tu móvil
            const MODO_PRUEBAS = true;
            const MI_TELEFONO = "34667248132";

            if (MODO_PRUEBAS) {
                console.log(`🛡️ [MODO PRUEBAS NO LOCALIZADO] Desvío a tu móvil (${MI_TELEFONO})`);
                const textoPrueba = `*(SIMULACIÓN NO LOCALIZADO PARA: ${finalPhoneToSend})*\n\n` + text;
                await sendWhatsAppAuto(MI_TELEFONO, textoPrueba, `cliente_${req.user.accountId}`, useDelay);
            } else {
                await sendWhatsAppAuto(finalPhoneToSend, text, `cliente_${req.user.accountId}`, useDelay);
            }
        }
        
        // --- INICIO TRAZABILIDAD ---
        await registrarMovimiento(id, req.user.sub, "Intento de Contacto", `El operario reporta que el cliente no contesta. Total intentos: ${currentCalls}`);
        // --- FIN TRAZABILIDAD ---

        res.json({ ok: true, called_times: currentCalls });
    } catch (e) { 
        console.error("Error No Localizado:", e);
        res.status(500).json({ ok: false }); 
    }
});

// ==========================================
// 📝 RUTAS DE PLANTILLAS DE MENSAJES
// ==========================================
app.get("/templates", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT type, content FROM message_templates WHERE owner_id=$1", [req.user.accountId]);
        res.json({ ok: true, templates: q.rows });
    } catch (e) {
        res.status(500).json({ ok: false, error: e.message });
    }
});

app.post("/templates", authMiddleware, async (req, res) => {
    try {
        const { type, content } = req.body;
        if (!type) return res.status(400).json({ ok: false, error: "Falta el tipo de plantilla" });
        
        await pool.query(`
            INSERT INTO message_templates (owner_id, type, content) 
            VALUES ($1, $2, $3)
            ON CONFLICT (owner_id, type) DO UPDATE SET content = EXCLUDED.content
        `, [req.user.accountId, type, content || ""]);
        
        res.json({ ok: true });
    } catch (e) {
        console.error("Error guardando plantilla:", e);
        res.status(500).json({ ok: false, error: e.message });
    }
});

// ==========================================
// 🎨 RUTAS DE ESTADOS DEL SISTEMA (SAAS COMPLETO)
// ==========================================
app.get("/statuses", authMiddleware, async (req, res) => { 
    try { 
        // 1. FORZAMOS LA INYECCIÓN/ACTUALIZACIÓN SIEMPRE
        const defaults = [
            {name:'Pendiente de Asignar', c:'gray', d:true, f:false, sys:true},
            {name:'Asignado', c:'blue', d:false, f:false, sys:true},
            {name:'Esperando al Cliente', c:'amber', d:false, f:false, sys:true},
            {name:'Citado', c:'emerald', d:false, f:false, sys:true},
            {name:'De Camino', c:'indigo', d:false, f:false, sys:true},
            {name:'Trabajando', c:'orange', d:false, f:false, sys:true},
            {name:'Incidencia', c:'red', d:false, f:false, sys:true},
            {name:'Desasignado', c:'rose', d:false, f:false, sys:true},
            {name:'Finalizado', c:'purple', d:false, f:true, sys:true},
            {name:'Anulado', c:'gray', d:false, f:true, sys:true}
        ]; 
        
        for (const s of defaults) {
            const check = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name=$2", [req.user.accountId, s.name]);
            if(check.rowCount === 0){
                await pool.query("INSERT INTO service_statuses (owner_id,name,color,is_default,is_final,is_system) VALUES ($1,$2,$3,$4,$5,$6)", [req.user.accountId,s.name,s.c,s.d,s.f,s.sys]); 
            } else {
                await pool.query("UPDATE service_statuses SET is_system=true, color=$2, is_final=$3 WHERE id=$1", [check.rows[0].id, s.c, s.f]);
            }
        }

        // 🧹 Limpiamos el candado a los viejos
        const nombresOficiales = defaults.map(d => d.name);
        await pool.query("UPDATE service_statuses SET is_system=false WHERE owner_id=$1 AND name != ALL($2::text[])", [req.user.accountId, nombresOficiales]);
        
        // 🚀 FUSIÓN AUTOMÁTICA: Movemos todo lo viejo al nuevo y borramos el fantasma
        let currentDb = await pool.query("SELECT * FROM service_statuses WHERE owner_id=$1", [req.user.accountId]);
        const idEsperando = currentDb.rows.find(s => s.name === 'Esperando al Cliente')?.id;
        const idPendiente = currentDb.rows.find(s => s.name === 'Pendiente de Cita')?.id;

        if (idEsperando && idPendiente) {
            // Pasamos los servicios normales
            await pool.query("UPDATE services SET status_id = $1 WHERE status_id = $2 AND owner_id = $3", [idEsperando, idPendiente, req.user.accountId]);
            // Pasamos los servicios del panel operativo (JSON)
            await pool.query(`UPDATE scraped_services SET raw_data = jsonb_set(COALESCE(raw_data, '{}'::jsonb), '{status_operativo}', to_jsonb($1::text)) WHERE raw_data->>'status_operativo' = $2 AND owner_id = $3`, [String(idEsperando), String(idPendiente), req.user.accountId]);
            // Exterminamos "Pendiente de Cita"
            await pool.query("DELETE FROM service_statuses WHERE id = $1 AND owner_id = $2", [idPendiente, req.user.accountId]);
        }

        // 2. RECUPERAMOS LOS ESTADOS LIMPIOS
        let q = await pool.query("SELECT * FROM service_statuses WHERE owner_id=$1", [req.user.accountId]); 
        
        // ORDENAMOS
        let sortedStatuses = q.rows.sort((a, b) => {
            let idxA = nombresOficiales.indexOf(a.name);
            let idxB = nombresOficiales.indexOf(b.name);
            if(idxA === -1) idxA = 99; 
            if(idxB === -1) idxB = 99;
            return idxA - idxB;
        });

        res.json({ ok: true, statuses: sortedStatuses }); 
    } catch (e) { res.status(500).json({ ok: false }); } 
});

app.get("/clients/search", authMiddleware, async (req, res) => { try { const { phone } = req.query; const p = normalizePhone(phone); if(!p) return res.json({ok:true,client:null}); const q = await pool.query("SELECT * FROM clients WHERE phone=$1 AND owner_id=$2 LIMIT 1", [p, req.user.accountId]); res.json({ ok: true, client: q.rows[0] || null }); } catch (e) { res.status(500).json({ ok: false }); } });

// --- ENDPOINT PARA GENERAR ENLACE AL PORTAL DEL CLIENTE DESDE LA APP ---
app.post('/clients/ensure', authMiddleware, async (req, res) => {
    try {
        const { phone, name, address } = req.body;
        if (!phone) return res.status(400).json({ ok: false, error: "Teléfono obligatorio" });

        const cleanPhone = phone.replace('+34', '').replace(/\s+/g, '').trim();
        const ownerId = req.user.accountId;

        const q = await pool.query("SELECT * FROM clients WHERE phone LIKE $1 AND owner_id = $2 LIMIT 1", [`%${cleanPhone}%`, ownerId]);
        
        if (q.rowCount > 0) {
            let client = q.rows[0];
            // PARCHE: Si el cliente existe pero no tiene token (porque es antiguo), se lo creamos
            if (!client.portal_token) {
                client.portal_token = crypto.randomBytes(6).toString('hex');
                await pool.query("UPDATE clients SET portal_token = $1 WHERE id = $2", [client.portal_token, client.id]);
            }
            res.json({ ok: true, client });
        } else {
            const newToken = crypto.randomBytes(6).toString('hex');
            const insert = await pool.query(
                "INSERT INTO clients (owner_id, full_name, phone, addresses, portal_token) VALUES ($1, $2, $3, $4, $5) RETURNING portal_token", 
                [ownerId, name || "Cliente", phone, JSON.stringify([address || ""]), newToken]
            );
            res.json({ ok: true, client: { portal_token: insert.rows[0].portal_token } });
        }
    } catch (e) {
        res.status(500).json({ ok: false, error: "Error interno del servidor" });
    }
});


app.get("/companies", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT * FROM companies WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]); res.json({ ok: true, companies: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/companies", authMiddleware, async (req, res) => { try { const { name } = req.body; await pool.query("INSERT INTO companies (name, owner_id) VALUES ($1, $2)", [name, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });
app.delete("/companies/:id", authMiddleware, async (req, res) => { try { await pool.query("DELETE FROM companies WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });

// AÑADIDO: Filtro estricto para que solo devuelva operarios que estén en estado 'active'
app.get("/operators", authMiddleware, async (req, res) => { 
    try { 
        const guildId = req.query.guild_id;
        let query = `SELECT u.id, u.full_name, u.zones FROM users u WHERE u.owner_id=$1 AND u.role='operario' AND u.status='active'`;
        const params = [req.user.accountId];
        if (guildId) { query = `SELECT u.id, u.full_name, u.zones FROM users u JOIN user_guilds ug ON u.id = ug.user_id WHERE u.owner_id=$1 AND u.role='operario' AND u.status='active' AND ug.guild_id=$2`; params.push(guildId); }
        query += ` ORDER BY u.full_name ASC`;
        const q = await pool.query(query, params); 
        res.json({ ok: true, operators: q.rows }); 
    } catch (e) { res.status(500).json({ ok: false }); } 
});

app.get("/zones", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT * FROM zones WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]); res.json({ ok: true, zones: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/zones", authMiddleware, async (req, res) => { try { const { name } = req.body; await pool.query("INSERT INTO zones (name, owner_id) VALUES ($1, $2)", [name, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });
app.delete("/zones/:id", authMiddleware, async (req, res) => { try { await pool.query("DELETE FROM zones WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });
app.get("/zones/:id/operators", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT user_id FROM user_zones WHERE zone_id=$1", [req.params.id]); res.json({ ok: true, assignedIds: q.rows.map(r=>r.user_id) }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/zones/:id/assign", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { operator_ids } = req.body; await client.query('BEGIN'); await client.query("DELETE FROM user_zones WHERE zone_id=$1", [req.params.id]); if(operator_ids) for(const uid of operator_ids) await client.query("INSERT INTO user_zones (user_id, zone_id) VALUES ($1, $2)", [uid, req.params.id]); await client.query('COMMIT'); res.json({ok:true}); } catch(e){ await client.query('ROLLBACK'); res.status(500).json({ok:false}); } finally { client.release(); } });

app.get("/api/geo/municipios/:provincia", authMiddleware, async (req, res) => { try { let { provincia } = req.params; const provClean = provincia.toUpperCase().normalize("NFD").replace(/[\u0300-\u036f]/g, ""); const q = await pool.query("SELECT municipio, codigo_postal FROM master_geo_es WHERE provincia = $1 ORDER BY municipio ASC", [provClean]); res.json({ ok: true, municipios: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.patch("/admin/users/:id/status", authMiddleware, async (req, res) => { try { const { status } = req.body; await pool.query("UPDATE users SET status = $1 WHERE id = $2 AND owner_id = $3", [status, req.params.id, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });
app.get("/admin/users", authMiddleware, async (req, res) => { try { const q = await pool.query(`SELECT u.id, u.full_name, u.email, u.phone, u.role, u.zones, u.status, COALESCE(json_agg(g.id) FILTER (WHERE g.id IS NOT NULL), '[]') as guilds FROM users u LEFT JOIN user_guilds ug ON u.id=ug.user_id LEFT JOIN guilds g ON ug.guild_id=g.id WHERE u.owner_id=$1 GROUP BY u.id ORDER BY u.id DESC`, [req.user.accountId]); res.json({ ok: true, users: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/admin/users", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { fullName, email, password, role, guilds, phone, zones } = req.body; if (!email || !password || !fullName || !phone) return res.status(400).json({ ok: false }); const p = normalizePhone(phone); const hash = await bcrypt.hash(password, 10); const check = await client.query("SELECT id FROM users WHERE (phone=$1 OR email=$2) AND owner_id=$3", [p, email, req.user.accountId]); if (check.rowCount > 0) return res.status(400).json({ ok: false, error: "Duplicado" }); await client.query('BEGIN'); const insert = await client.query("INSERT INTO users (full_name, email, password_hash, role, phone, is_verified, owner_id, zones, status) VALUES ($1, $2, $3, $4, $5, TRUE, $6, $7, 'active') RETURNING id", [fullName, email, hash, role || 'operario', p, req.user.accountId, JSON.stringify(zones || [])]); const uid = insert.rows[0].id; if (guilds) for (const gid of guilds) await client.query("INSERT INTO user_guilds (user_id, guild_id) VALUES ($1, $2)", [uid, gid]); await client.query('COMMIT'); res.json({ ok: true }); } catch (e) { await client.query('ROLLBACK'); res.status(500).json({ ok: false }); } finally { client.release(); } });
app.put("/admin/users/:id", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const userId = req.params.id; const { fullName, email, phone, role, guilds, password, zones } = req.body; const p = normalizePhone(phone); await client.query('BEGIN'); if(password) { const hash = await bcrypt.hash(password, 10); await client.query("UPDATE users SET full_name=$1, email=$2, phone=$3, role=$4, password_hash=$5, zones=$6 WHERE id=$7", [fullName, email, p, role, hash, JSON.stringify(zones || []), userId]); } else { await client.query("UPDATE users SET full_name=$1, email=$2, phone=$3, role=$4, zones=$5 WHERE id=$6", [fullName, email, p, role, JSON.stringify(zones || []), userId]); } if (guilds && Array.isArray(guilds)) { await client.query("DELETE FROM user_guilds WHERE user_id=$1", [userId]); for (const gid of guilds) await client.query("INSERT INTO user_guilds (user_id, guild_id) VALUES ($1, $2)", [userId, gid]); } await client.query('COMMIT'); res.json({ ok: true }); } catch (e) { await client.query('ROLLBACK'); res.status(500).json({ ok: false }); } finally { client.release(); } });
app.delete("/admin/users/:id", authMiddleware, async (req, res) => { try { await pool.query("DELETE FROM users WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });

// ==========================================
// 🏢 CONFIGURACIÓN EMPRESA (COLORES, LOGO, PORTAL)
// ==========================================
app.get("/config/company", authMiddleware, async (req, res) => { 
    try { 
        const q = await pool.query("SELECT company_slug, full_name, plan_tier, company_logo, portal_settings, app_settings FROM users WHERE id=$1", [req.user.accountId]); 
        res.json({ ok: true, config: q.rows[0] || {} }); 
    } catch (e) { res.status(500).json({ ok: false }); } 
});

app.post("/config/company", authMiddleware, async (req, res) => { 
    const client = await pool.connect(); 
    try { 
        const { slug, company_name, company_logo, portal_settings, app_settings } = req.body; 
        
        let cleanSlug = null;
        if (slug) {
            cleanSlug = slug.toLowerCase().replace(/[^a-z0-9-]/g, ""); 
            if (cleanSlug !== slug) return res.status(400).json({ ok: false, error: "El enlace solo puede contener letras minúsculas, números y guiones" }); 
            const check = await client.query("SELECT id FROM users WHERE company_slug=$1 AND id != $2", [cleanSlug, req.user.accountId]); 
            if (check.rowCount > 0) return res.status(400).json({ ok: false, error: "Ese enlace ya está en uso por otra empresa" }); 
        }

        await client.query(`
            UPDATE users 
            SET company_slug = COALESCE($1, company_slug),
                full_name = COALESCE($2, full_name),
                company_logo = COALESCE($3, company_logo),
                portal_settings = COALESCE($4, portal_settings),
                app_settings = COALESCE($5, app_settings)
            WHERE id = $6
        `, [cleanSlug, company_name, company_logo, portal_settings, app_settings, req.user.accountId]); 

        res.json({ ok: true }); 
    } catch (e) { 
        console.error("Error en config/company:", e);
        res.status(500).json({ ok: false, error: "Error interno" }); 
    } finally { 
        client.release(); 
    } 
});

// RUTA: Alta de expediente manual con validación de cliente
app.post("/services/manual-high", authMiddleware, async (req, res) => {
    try {
        const { phone, name, address, description, guild_id, assigned_to, duration_minutes, mode, is_company, company_name, company_ref } = req.body;
        const ownerId = req.user.accountId;

        // 1. Manejo del Cliente (Buscamos si existe por teléfono)
        const cleanPhone = phone.replace(/\D/g, "");
        let clientQ = await pool.query("SELECT id, addresses FROM clients WHERE phone LIKE $1 AND owner_id = $2", [`%${cleanPhone}%`, ownerId]);
        
        let clientId;
        if (clientQ.rowCount > 0) {
            clientId = clientQ.rows[0].id;
            let currentAddrs = clientQ.rows[0].addresses || [];
            // Si la dirección es nueva, la añadimos a su ficha
            if (!currentAddrs.includes(address)) {
                currentAddrs.push(address);
                await pool.query("UPDATE clients SET addresses = $1 WHERE id = $2", [JSON.stringify(currentAddrs), clientId]);
            }
        } else {
            // Si no existe, creamos cliente nuevo
            const token = crypto.randomBytes(6).toString('hex');
            const newClient = await pool.query(
                "INSERT INTO clients (owner_id, full_name, phone, addresses, portal_token) VALUES ($1, $2, $3, $4, $5) RETURNING id",
                [ownerId, name, phone, JSON.stringify([address]), token]
            );
            clientId = newClient.rows[0].id;
        }

        // 2. Crear el Expediente
        const rawData = {
            "Nombre Cliente": name,
            "Teléfono": phone,
            "Dirección": address,
            "Descripción": description,
            "guild_id": guild_id,
            "scheduled_date": "", 
            "scheduled_time": "",
            "duration_minutes": duration_minutes || 60,
            "Compañía": is_company ? company_name : "Particular"
        };

        const serviceReference = is_company ? company_ref : `M-${Date.now().toString().slice(-6)}`;

        const insertSvc = await pool.query(
            `INSERT INTO scraped_services (owner_id, provider, service_ref, status, automation_status, assigned_to, raw_data) 
             VALUES ($1, 'MANUAL', $2, 'pending', $3, $4, $5) RETURNING id`,
            [
                ownerId, 
                serviceReference, 
                mode === 'auto' ? 'in_progress' : 'manual',
                assigned_to || null,
                JSON.stringify(rawData)
            ]
        );

        const newId = insertSvc.rows[0].id;

        // 3. Si se eligió "Mandar a la bolsa", llamamos internamente al robot
        if (mode === 'auto' && guild_id) {
            const port = process.env.PORT || 3000;
            fetch(`http://127.0.0.1:${port}/providers/automate/${newId}`, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json', 'Authorization': req.headers.authorization },
                body: JSON.stringify({ guild_id, cp: "00000" })
            }).catch(e => console.error("Error lanzando bolsa:", e));
        }

        // --- TRAZABILIDAD ---
        await registrarMovimiento(newId, req.user.sub, "Alta Manual", `Servicio creado manualmente (${rawData["Compañía"]}).`);

        res.json({ ok: true, id: newId });
    } catch (e) {
        console.error("Error Alta Manual:", e);
        res.status(500).json({ ok: false });
    }
});

// ==========================================
// 🛠️ RUTAS DE GREMIOS E INTELIGENCIA ARTIFICIAL
// ==========================================
app.get("/guilds", authMiddleware, async (req, res) => { 
    try { 
        let q = await pool.query("SELECT id, name, ia_keywords FROM guilds WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]); 
        if (q.rowCount === 0) {
            const defaults = [
                { n: "ELECTRICISTA", kw: '["electric", "cortocircuito", "cuadro electrico", "salto de plomos", "apagon", "diferencial", "icp", "magnetotermico", "chispazo", "sin luz", "cableado", "derivacion", "no hay luz", "salta el termico"]' },
                { n: "FONTANERIA", kw: '["fontaner", "fuga de agua", "tuberia", "atasco", "desatasco", "bote sifonico", "llave de paso", "calentador", "termo", "radiador", "caldera", "gotera", "inundacion", "filtracion", "bajante", "humedad"]' },
                { n: "CRISTALERIA", kw: '["cristal", "vidrio", "ventana rota", "escaparate", "luna", "espejo", "climalit", "doble acristalamiento", "velux", "rotura"]' },
                { n: "PERSIANAS", kw: '["motor persiana", "eje persiana", "persianista", "persiana atascada", "rotura de persiana", "domotica persiana"]' },
                { n: "CARPINTERIA", kw: '["carpinter", "puerta de madera", "bisagra", "marco", "rodapie", "tarima", "armario", "cepillar puerta", "cajon", "encimera", "madera hinchada"]' },
                { n: "ALBAÑILERIA", kw: '["albañil", "cemento", "yeso", "ladrillo", "azulejo", "desconchado", "grieta", "muro", "alicatado"]' },
                { n: "MANITAS ELECTRICISTA", kw: '["manitas electric", "cambiar bombilla", "colgar lampara", "instalar foco", "fluorescente", "casquillo", "lampara del dormitorio", "cambiar enchufe", "embellecedor"]' },
                { n: "MANITAS FONTANERIA", kw: '["manitas fontaner", "cambiar grifo", "sellar bañera", "silicona", "latiguillo", "alcachofa", "tapon", "cambiar cisterna", "descargador"]' },
                { n: "MANITAS PERSIANAS", kw: '["manitas persian", "cambiar cinta", "cuerda persiana", "recogedor", "atasco persiana", "lamas rotas", "persiana descolgada"]' },
                { n: "MANITAS GENERAL", kw: '["bombin", "colgar cuadro", "soporte tv", "estanteria", "montar mueble", "ikea", "cortina", "riel", "estor", "agujero", "taladro", "picaporte", "colgar espejo"]' }
            ];
            for (const g of defaults) { await pool.query("INSERT INTO guilds (owner_id, name, ia_keywords) VALUES ($1, $2, $3::jsonb)", [req.user.accountId, g.n, g.kw]); }
            q = await pool.query("SELECT id, name, ia_keywords FROM guilds WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]); 
        }
        res.json({ ok: true, guilds: q.rows }); 
    } catch (e) { res.status(500).json({ ok: false }); } 
});

app.post("/guilds", authMiddleware, async (req, res) => { try { const { name } = req.body; await pool.query("INSERT INTO guilds (name, owner_id) VALUES ($1, $2)", [name, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });
app.delete("/guilds/:id", authMiddleware, async (req, res) => { try { await pool.query("DELETE FROM guilds WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]); res.json({ ok: true }); } catch (e) { res.status(500).json({ ok: false }); } });

app.put("/guilds/:id/ia-rules", authMiddleware, async (req, res) => {
    try {
        const { keywords } = req.body;
        const guildId = req.params.id;
        const safeKeywords = Array.isArray(keywords) ? keywords : [];
        await pool.query("UPDATE guilds SET ia_keywords = $1 WHERE id = $2 AND owner_id = $3", [JSON.stringify(safeKeywords), guildId, req.user.accountId]);
        res.json({ ok: true });
    } catch (e) { res.status(500).json({ ok: false, error: e.message }); }
});

// ==========================================
// 🏆 MOTOR DE RANKING Y ESTADÍSTICAS
// ==========================================

function calculateScore(services) {
    let score = 0;
    const now = new Date();
    const thirtyDaysAgo = new Date(now.getTime() - (30 * 24 * 60 * 60 * 1000));

    // Separar servicios (usamos created_at para medir el último mes)
    const openServices = services.filter(s => !s.is_final);
    const closedLast30Days = services.filter(s => s.is_final && new Date(s.created_at) >= thirtyDaysAgo);
    
    // --- 1. VELOCIDAD DE CIERRE (Max 30 Puntos) ---
    let scoreCierre = 0;
    if (closedLast30Days.length > 0) {
        let totalDaysToClose = 0;
        closedLast30Days.forEach(s => {
            const created = new Date(s.created_at);
            const closed = new Date(); // Estimamos el cierre en el ciclo actual
            totalDaysToClose += Math.max(1, (closed - created) / (1000 * 60 * 60 * 24));
        });
        const avgCloseDays = totalDaysToClose / closedLast30Days.length;
        
        if (avgCloseDays <= 2) scoreCierre = 30;
        else if (avgCloseDays >= 14) scoreCierre = 0;
        else scoreCierre = 30 - ((avgCloseDays - 2) * (30 / 12)); 
    }

    // --- 2. CITA RÁPIDA < 24h (Max 30 Puntos) ---
    let scoreCita = 0;
    let validSchedules = 0;
    let fastSchedules = 0;
    
    const recentServices = services.filter(s => new Date(s.created_at) >= thirtyDaysAgo);
    recentServices.forEach(s => {
        const raw = s.raw_data || {};
        if (raw.scheduled_date) {
            validSchedules++;
            const created = new Date(s.created_at);
            const [y, m, d] = raw.scheduled_date.split('-');
            const schedDate = new Date(y, m - 1, d);
            
            const diffDays = (schedDate - created) / (1000 * 60 * 60 * 24);
            if (diffDays <= 1.5) fastSchedules++; 
        }
    });

    if (validSchedules > 0) {
        const fastRatio = fastSchedules / validSchedules;
        scoreCita = fastRatio * 30;
    }

    // --- 3. VOLUMEN DE TRABAJO AL DÍA (Max 20 Puntos) ---
    let scoreVolumen = 0;
    const closedPerDay = closedLast30Days.length / 22; 
    
    if (closedPerDay >= 3) scoreVolumen = 20;
    else scoreVolumen = (closedPerDay / 3) * 20;

    // --- 4. PENALIZACIÓN POR RE-CITAS (Max 20 Puntos) ---
    let scoreRecitas = 20;
    let totalCalled = 0;
    recentServices.forEach(s => {
        const raw = s.raw_data || {};
        const calls = parseInt(raw.called_times || 0);
        if (calls > 1) totalCalled += (calls - 1); 
    });
    
    scoreRecitas = Math.max(0, 20 - (totalCalled * 2));

    // --- SUMA BASE ---
    let totalScore = scoreCierre + scoreCita + scoreVolumen + scoreRecitas;

    // --- 5. PENALIZACIÓN POR ACUMULACIÓN DE ABIERTOS ---
    let penalizacionAbiertos = 0;
    if (openServices.length > 15) {
        penalizacionAbiertos = (openServices.length - 15) * 1.5; 
    }

    totalScore -= penalizacionAbiertos;
    totalScore = Math.min(100, Math.max(0, totalScore));

    return {
        score: Math.round(totalScore),
        details: {
            cierre: Math.round(scoreCierre),
            cita: Math.round(scoreCita),
            volumen: Math.round(scoreVolumen),
            recitas: Math.round(scoreRecitas),
            penalizacion: Math.round(penalizacionAbiertos),
            abiertos: openServices.length,
            cerrados_mes: closedLast30Days.length
        }
    };
}

// RUTA GET PARA EL RANKING
app.get("/ranking", authMiddleware, async (req, res) => {
    try {
        // CORRECCIÓN: Hemos quitado "updated_at" de aquí para evitar que la base de datos se queje
        const q = await pool.query(`
            SELECT id, created_at, raw_data,
            (SELECT is_final FROM service_statuses WHERE id::text = raw_data->>'status_operativo') as is_final
            FROM scraped_services
            WHERE assigned_to = $1
        `, [req.user.sub]);

        const rankingData = calculateScore(q.rows);

        await pool.query(
            "UPDATE users SET ranking_score = $1, ranking_data = $2 WHERE id = $3", 
            [rankingData.score, rankingData.details, req.user.sub]
        );

        res.json({ ok: true, ranking: rankingData });

    } catch (error) {
        console.error("Error en ranking:", error);
        res.status(500).json({ ok: false });
    }
});


// ==========================================
// 📍 MOTOR GPS: RASTREO EN TIEMPO REAL
// ==========================================

// El operario envía su ubicación
app.post("/services/:id/location", authMiddleware, async (req, res) => {
    try {
        const { lat, lng } = req.body;
        if (!lat || !lng) return res.status(400).json({ ok: false });

        const locData = { lat, lng, updated_at: new Date().toISOString() };
        
        // CORRECCIÓN: Ahora usa owner_id para que funcione aunque el admin esté haciendo la prueba
        await pool.query(`
            UPDATE scraped_services 
            SET raw_data = jsonb_set(COALESCE(raw_data, '{}'::jsonb), '{worker_location}', $1::jsonb)
            WHERE id = $2 AND owner_id = $3
        `, [JSON.stringify(locData), req.params.id, req.user.accountId]);

        res.json({ ok: true });
    } catch (e) {
        res.status(500).json({ ok: false });
    }
});

// El cliente consulta la ubicación
app.get("/public/portal/:token/location/:serviceId", async (req, res) => {
    try {
        const { token, serviceId } = req.params;
        const clientQ = await pool.query("SELECT owner_id FROM clients WHERE portal_token = $1", [token]);
        if (clientQ.rowCount === 0) return res.status(404).json({ ok: false });
        
        const serviceQ = await pool.query("SELECT raw_data FROM scraped_services WHERE id = $1 AND owner_id = $2", [serviceId, clientQ.rows[0].owner_id]);
        if (serviceQ.rowCount === 0) return res.status(404).json({ ok: false });

        const loc = serviceQ.rows[0].raw_data.worker_location || null;
        res.json({ ok: true, location: loc });
    } catch (e) {
        res.status(500).json({ ok: false });
    }
});


// ==========================================
// 🔗 RUTAS PARA ACEPTAR/RECHAZAR AVISOS (PANTALLA OPERARIOS)
// ==========================================

app.get("/public/assignment/:token", async (req, res) => {
    try {
        const { token } = req.params;
        const q = await pool.query(`
            SELECT ap.*, s.raw_data, s.service_ref, s.is_urgent, u.full_name
            FROM assignment_pings ap
            JOIN scraped_services s ON ap.scraped_id = s.id
            JOIN users u ON ap.user_id = u.id
            WHERE ap.token = $1
        `, [token]);

        if (q.rowCount === 0) return res.status(404).json({ ok: false, error: "Asignación no encontrada" });
        
        const assign = q.rows[0];
        
        if (assign.status !== 'pending') {
            return res.json({ ok: false, error: "Este aviso ya fue " + (assign.status === 'accepted' ? 'aceptado' : 'rechazado o ha caducado.') });
        }

        if (new Date() > new Date(assign.expires_at)) {
            await pool.query("UPDATE assignment_pings SET status = 'expired' WHERE id = $1", [assign.id]);
            return res.json({ ok: false, error: "El tiempo para aceptar este aviso ha caducado." });
        }

        // Parsear datos para enviarlos bonitos a la pantalla de aceptar.html
        const raw = assign.raw_data || {};
        const serviceData = {
            "Gremio": raw["Gremio"] || raw.guild_name || "Servicio General",
            "Expediente": assign.service_ref || raw["Referencia"] || "Sin Ref",
            "Población": raw["Población"] || raw["POBLACION-PROVINCIA"] || "",
            "Código Postal": raw["Código Postal"] || "",
            "Descripción": raw["Descripción"] || raw["DESCRIPCION"] || "Revisar en el lugar."
        };

        res.json({ ok: true, service: serviceData, debug: { hora_limite_bd: assign.expires_at } });
    } catch (e) {
        console.error("Error al obtener asignación:", e);
        res.status(500).json({ ok: false });
    }
});

app.post("/public/assignment/respond", async (req, res) => {
    const client = await pool.connect();
    try {
        const { token, action } = req.body;
        
        if (!token || !action) return res.status(400).json({ ok: false, error: "Faltan datos" });

        await client.query('BEGIN');

        // 1. Validar ping bloqueando la fila
        const qPing = await client.query("SELECT * FROM assignment_pings WHERE token = $1 AND status = 'pending' FOR UPDATE", [token]);
        if (qPing.rowCount === 0) {
            await client.query('ROLLBACK');
            return res.status(400).json({ ok: false, error: "Este aviso ya no está disponible." });
        }
        
        const ping = qPing.rows[0];

        if (action === 'reject') {
            await client.query("UPDATE assignment_pings SET status = 'rejected' WHERE id = $1", [ping.id]);
            await client.query('COMMIT');

            // --- INICIO TRAZABILIDAD ---
            await registrarMovimiento(ping.scraped_id, ping.user_id, "Servicio Aceptado", "El operario ha aceptado el aviso desde su teléfono móvil.");
            // --- FIN TRAZABILIDAD ---

            
            return res.json({ ok: true });
        }

        if (action === 'accept') {
            // 2. Marcar ping como aceptado
            await client.query("UPDATE assignment_pings SET status = 'accepted' WHERE id = $1", [ping.id]);

            // 3. Sacar datos del servicio
            const sQ = await client.query("SELECT owner_id, raw_data FROM scraped_services WHERE id = $1", [ping.scraped_id]);
            const ownerId = sQ.rows[0].owner_id;
            let rawData = sQ.rows[0].raw_data || {};

            // 4. Poner el estado en "Asignado" si existe
            const statusQ = await client.query("SELECT id, name FROM service_statuses WHERE owner_id=$1 AND name ILIKE '%asignado%' LIMIT 1", [ownerId]);
            const statusAsignadoId = statusQ.rows[0]?.id || null;
            
            if (statusAsignadoId) {
                rawData.status_operativo = statusAsignadoId;
            }

            // 5. Actualizar el expediente oficial con el técnico
            await client.query(`
                UPDATE scraped_services 
                SET assigned_to = $1, automation_status = 'completed', raw_data = $2 
                WHERE id = $3
            `, [ping.user_id, JSON.stringify(rawData), ping.scraped_id]);

            await client.query('COMMIT');

            // 6. ¡Magia! Le enviamos un WhatsApp automático al cliente diciendo que ya tiene técnico
            triggerWhatsAppEvent(ownerId, ping.scraped_id, 'wa_evt_assigned').catch(e => console.error(e));

            return res.json({ ok: true });
        }

        await client.query('ROLLBACK');
        res.status(400).json({ ok: false, error: "Acción no válida" });

    } catch (e) {
        await client.query('ROLLBACK');
        console.error("Error respondiendo asignación:", e);
        res.status(500).json({ ok: false, error: "Error interno del servidor" });
    } finally {
        client.release();
    }
});

app.post("/public/assignment/:token/reject", async (req, res) => {
    try {
        const { token } = req.params;
        // Si lo rechaza, el reloj (setInterval) se encargará de buscar al siguiente técnico libre al instante
        await pool.query("UPDATE assignment_pings SET status = 'rejected' WHERE token = $1 AND status = 'pending'", [token]);
        res.json({ ok: true });
    } catch (e) {
        console.error("Error rechazando asignación:", e);
        res.status(500).json({ ok: false });
    }
});

// ==========================================
// 📄 MOTOR DE PRESUPUESTOS Y CATÁLOGO DE ARTÍCULOS
// ==========================================
pool.query(`
  CREATE TABLE IF NOT EXISTS articles (
    id SERIAL PRIMARY KEY,
    owner_id INT REFERENCES users(id) ON DELETE CASCADE,
    name TEXT NOT NULL,
    price DECIMAL(10,2) DEFAULT 0.00,
    created_at TIMESTAMP DEFAULT NOW()
  );

  CREATE TABLE IF NOT EXISTS budgets (
    id SERIAL PRIMARY KEY,
    owner_id INT REFERENCES users(id) ON DELETE CASCADE,
    client_phone TEXT,
    client_name TEXT,
    client_address TEXT,
    items JSONB DEFAULT '[]',
    subtotal DECIMAL(10,2) DEFAULT 0.00,
    tax DECIMAL(10,2) DEFAULT 0.00,
    total DECIMAL(10,2) DEFAULT 0.00,
    status TEXT DEFAULT 'pending', -- pending, accepted, rejected, converted
    created_at TIMESTAMP DEFAULT NOW()
  );
`).catch(console.error);

// --- CATÁLOGO DE ARTÍCULOS ---
app.get("/articles", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT * FROM articles WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]);
        res.json({ ok: true, articles: q.rows });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.post("/articles", authMiddleware, async (req, res) => {
    try {
        const { name, price } = req.body;
        await pool.query("INSERT INTO articles (owner_id, name, price) VALUES ($1, $2, $3)", [req.user.accountId, name, price]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.put("/articles/:id", authMiddleware, async (req, res) => {
    try {
        const { name, price } = req.body;
        await pool.query("UPDATE articles SET name=$1, price=$2 WHERE id=$3 AND owner_id=$4", [name, price, req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

// --- PRESUPUESTOS ---
app.get("/budgets", authMiddleware, async (req, res) => {
    try {
        // MAGIA: Cruzamos los datos con scraped_services y service_statuses para saber
        // exactamente en qué estado se encuentra el servicio que nació de este presupuesto.
        const q = await pool.query(`
            SELECT b.*, 
                   s.status as linked_service_status,
                   st.name as linked_service_status_name
            FROM budgets b
            LEFT JOIN scraped_services s ON s.service_ref = 'PRE-' || b.id AND s.owner_id = b.owner_id
            LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
            WHERE b.owner_id=$1 
            ORDER BY b.created_at DESC
        `, [req.user.accountId]);
        res.json({ ok: true, budgets: q.rows });
    } catch(e) { res.status(500).json({ok: false}); }
});

// Borrar Presupuesto
app.delete("/budgets/:id", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT status FROM budgets WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]);
        if (q.rowCount === 0) return res.status(404).json({ok: false, error: "No encontrado"});
        
        const status = q.rows[0].status;
        
        // Comprobamos si el servicio vinculado está anulado
        const sq = await pool.query(`
            SELECT st.name as status_name
            FROM scraped_services s
            LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
            WHERE s.service_ref = $1 AND s.owner_id = $2
        `, [`PRE-${req.params.id}`, req.user.accountId]);

        let isAnulado = false;
        if (sq.rowCount > 0 && sq.rows[0].status_name && sq.rows[0].status_name.toLowerCase().includes('anulado')) {
            isAnulado = true;
        }
        
        // REGLA DE NEGOCIO: No se puede borrar si está aceptado o convertido (Y NO ESTÁ ANULADO)
        if ((status === 'accepted' || status === 'converted') && !isAnulado) {
            return res.status(400).json({ok: false, error: "Para poder borrar un presupuesto, el servicio primero debe estar anulado."});
        }
        
        await pool.query("DELETE FROM budgets WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { 
        res.status(500).json({ok: false, error: "Error interno"}); 
    }
});

// Convertir Presupuesto en Servicio Activo (CON SOPORTE RED INTERNA Y TRAZABILIDAD)
app.post("/budgets/:id/convert", authMiddleware, async (req, res) => {
    try {
        const { date, time, guild_id, assigned_to, use_automation } = req.body;
        const bq = await pool.query("SELECT * FROM budgets WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]);
        if (bq.rowCount === 0) return res.status(404).json({ok: false});
        const budget = bq.rows[0];

        // 1. Montamos el Raw Data para el servicio
        const rawData = {
            "Nombre Cliente": budget.client_name,
            "Teléfono": budget.client_phone,
            "Dirección": budget.client_address,
            "Compañía": "Particular",
            "Descripción": "PRESUPUESTO ACEPTADO.\n" + budget.items.map(i => `${i.qty}x ${i.concept}`).join("\n"),
            "guild_id": guild_id || null,
            "assigned_to": assigned_to || null,
            "scheduled_date": date || "",
            "scheduled_time": time || ""
        };

        // 2. Insertamos en el Panel Operativo (Buzón) empezando en manual
        const insertSvc = await pool.query(
            "INSERT INTO scraped_services (owner_id, provider, service_ref, status, automation_status, assigned_to, raw_data) VALUES ($1, 'particular', $2, 'pending', 'manual', $3, $4) RETURNING id",
            [
                req.user.accountId, 
                `PRE-${budget.id}`, 
                assigned_to || null,
                JSON.stringify(rawData)
            ]
        );

        const newServiceId = insertSvc.rows[0].id;

        // 3. Marcamos presupuesto como convertido y le enlazamos la ficha financiera por el total
        await pool.query("UPDATE budgets SET status='converted' WHERE id=$1", [budget.id]);
        await pool.query(
            "INSERT INTO service_financials (scraped_id, amount, payment_method) VALUES ($1, $2, 'Pendiente')",
            [newServiceId, budget.total]
        );

        // 4. Si pide automatización, la disparamos internamente llamando a nuestra propia IP (127.0.0.1)
        if (use_automation && guild_id) {
            const cpMatch = budget.client_address ? budget.client_address.match(/\b\d{5}\b/) : null;
            const cp = cpMatch ? cpMatch[0] : "00000"; 
            
            const port = process.env.PORT || 3000;
            const autoUrl = `http://127.0.0.1:${port}/providers/automate/${newServiceId}`;
            
            fetch(autoUrl, {
                method: 'POST',
                headers: { 
                    'Content-Type': 'application/json', 
                    'Authorization': req.headers.authorization 
                },
                body: JSON.stringify({ guild_id, cp, useDelay: false })
            }).catch(e => console.error("Error lanzando automatización interna:", e));
            
            if (budget.client_phone) {
                const msg = `✅ *PRESUPUESTO ACEPTADO*\n\nHola ${budget.client_name}, confirmamos la aceptación del presupuesto por un total de *${budget.total}€*.\n\nEn breve un técnico se pondrá en contacto contigo para agendar la cita. ¡Gracias por confiar en nosotros!`;
                sendWhatsAppAuto(budget.client_phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
            }
        } 
        else if (budget.client_phone && date && time) {
            // Asignación directa a un técnico con fecha y hora
            const [y, m, d] = date.split('-');
            const msg = `✅ *PRESUPUESTO ACEPTADO*\n\nHola ${budget.client_name}, confirmamos la aceptación del presupuesto por un total de *${budget.total}€*.\n\nEl servicio ha sido agendado para el *${d}/${m}/${y} a las ${time}*. ¡Gracias por confiar en nosotros!`;
            sendWhatsAppAuto(budget.client_phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
            
            if (assigned_to) {
                 const statusQ = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name ILIKE '%asignado%' LIMIT 1", [req.user.accountId]);
                 if (statusQ.rowCount > 0) {
                     rawData.status_operativo = statusQ.rows[0].id;
                     await pool.query("UPDATE scraped_services SET raw_data = $1 WHERE id = $2", [JSON.stringify(rawData), newServiceId]);
                 }
            }
        }

        // --- INICIO TRAZABILIDAD ---
        await registrarMovimiento(newServiceId, req.user.sub, "Aviso Creado", `Servicio generado a raíz del presupuesto aceptado #PRE-${budget.id}.`);
        // --- FIN TRAZABILIDAD ---

        res.json({ ok: true });
    } catch(e) { 
        console.error("Error convirtiendo presupuesto:", e);
        res.status(500).json({ok: false}); 
    }
});



// ==========================================
// 💰 MOTOR FINANCIERO Y CONTABILIDAD (PREPARADO PARA ROBOT PDF)
// ==========================================
// Creamos la tabla financiera preparada para facturas y robots
pool.query(`
  CREATE TABLE IF NOT EXISTS service_financials (
    id SERIAL PRIMARY KEY,
    scraped_id INT REFERENCES scraped_services(id) ON DELETE CASCADE UNIQUE,
    amount DECIMAL(10,2) DEFAULT 0.00,
    payment_method TEXT,
    is_paid BOOLEAN DEFAULT false,
    invoice_ref TEXT,
    pdf_raw_data JSONB,
    created_at TIMESTAMP DEFAULT NOW(),
    updated_at TIMESTAMP DEFAULT NOW()
  );
`).catch(console.error);

// Obtener toda la contabilidad
app.get("/financials", authMiddleware, async (req, res) => {
    try {
        // 1. Truco de magia: Si hay servicios que no tienen ficha financiera, se la creamos automáticamente.
        // Si tiene compañía asignada, le ponemos "Cobro Banco" por defecto. Si no, "Pendiente".
        await pool.query(`
            INSERT INTO service_financials (scraped_id, payment_method)
            SELECT id, 
                   CASE WHEN raw_data->>'Compañía' IS NOT NULL AND raw_data->>'Compañía' != '' AND raw_data->>'Compañía' != 'Particular' 
                        THEN 'Cobro Banco' 
                        ELSE 'Pendiente' END
            FROM scraped_services
            WHERE owner_id = $1 AND id NOT IN (SELECT scraped_id FROM service_financials)
        `, [req.user.accountId]);

        // 2. Devolvemos la lista cruzando las finanzas con los datos del servicio
        const q = await pool.query(`
            SELECT f.*, s.service_ref, s.raw_data, s.status
            FROM service_financials f
            JOIN scraped_services s ON f.scraped_id = s.id
            WHERE s.owner_id = $1
            ORDER BY f.updated_at DESC
        `, [req.user.accountId]);
        
        res.json({ ok: true, financials: q.rows });
    } catch(e) {
        console.error("Error financiero:", e);
        res.status(500).json({ ok: false });
    }
});

// Guardar un cobro/pago
app.put("/financials/:id", authMiddleware, async (req, res) => {
    try {
        const { amount, payment_method } = req.body;
        const parsedAmount = parseFloat(amount) || 0;
        
        // NUEVA REGLA: Si el método de pago es "Pendiente", NO está pagado, 
        // independientemente del importe que tenga apuntado (Ej: Presupuestos).
        const isPaid = payment_method !== 'Pendiente';

        await pool.query(`
            UPDATE service_financials 
            SET amount = $1, payment_method = $2, is_paid = $3, updated_at = NOW()
            WHERE scraped_id = $4
        `, [parsedAmount, payment_method, isPaid, req.params.id]);

        // LOG AUTOMÁTICO DE TRAZABILIDAD
        const userQ = await pool.query("SELECT full_name FROM users WHERE id=$1", [req.user.sub]);
        const userName = userQ.rows[0]?.full_name || "Sistema";
        await pool.query(
            "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
            [req.params.id, userName, "Cobro Actualizado", `Importe: ${parsedAmount}€ | Método: ${payment_method}`]
        );

        res.json({ ok: true, is_paid: isPaid });
    } catch(e) {
        console.error(e);
        res.status(500).json({ ok: false });
    }
});

// ==========================================
// 📖 MOTOR DE TRAZABILIDAD (LOGS)
// ==========================================
// Creamos la tabla automáticamente si no existe
pool.query(`
  CREATE TABLE IF NOT EXISTS scraped_service_logs (
    id SERIAL PRIMARY KEY,
    scraped_id INT REFERENCES scraped_services(id) ON DELETE CASCADE,
    user_name TEXT,
    action TEXT NOT NULL,
    details TEXT,
    created_at TIMESTAMP DEFAULT NOW()
  );
`).catch(console.error);

// Ruta para GUARDAR un evento en el log
app.post("/services/:id/log", authMiddleware, async (req, res) => {
    try {
        const { action, details } = req.body;
        const serviceId = req.params.id;

        // Verificamos propiedad antes de insertar
        const check = await pool.query("SELECT id FROM scraped_services WHERE id=$1 AND owner_id=$2", [serviceId, req.user.accountId]);
        if (check.rowCount === 0) return res.status(403).json({ ok: false, error: "No autorizado" });

        const userQ = await pool.query("SELECT full_name FROM users WHERE id=$1", [req.user.sub]);
        const userName = userQ.rows[0]?.full_name || "Sistema";

        await pool.query(
            "INSERT INTO scraped_service_logs (scraped_id, user_name, action, details) VALUES ($1, $2, $3, $4)",
            [serviceId, userName, action, details || ""]
        );
        res.json({ ok: true });
    } catch(e) { 
        res.status(500).json({ ok: false }); 
    }
});

// Ruta para LEER el historial de un servicio
app.get("/services/:id/logs", authMiddleware, async (req, res) => {
    try {
        // Cruce con la tabla principal para verificar el dueño (owner_id)
        const q = await pool.query(`
            SELECT l.* FROM scraped_service_logs l
            JOIN scraped_services s ON l.scraped_id = s.id
            WHERE l.scraped_id = $1 
            AND s.owner_id = $2
            ORDER BY l.created_at DESC
        `, [req.params.id, req.user.accountId]);

        res.json({ ok: true, logs: q.rows });
    } catch(e) { 
        res.status(500).json({ ok: false }); 
    }
});

// ==========================================
// 📄 MOTOR DE PRESUPUESTOS Y CATÁLOGO DE ARTÍCULOS
// ==========================================
pool.query(`
  CREATE TABLE IF NOT EXISTS articles (
    id SERIAL PRIMARY KEY,
    owner_id INT REFERENCES users(id) ON DELETE CASCADE,
    name TEXT NOT NULL,
    price DECIMAL(10,2) DEFAULT 0.00,
    created_at TIMESTAMP DEFAULT NOW()
  );

  CREATE TABLE IF NOT EXISTS budgets (
    id SERIAL PRIMARY KEY,
    owner_id INT REFERENCES users(id) ON DELETE CASCADE,
    client_phone TEXT,
    client_name TEXT,
    client_address TEXT,
    items JSONB DEFAULT '[]',
    subtotal DECIMAL(10,2) DEFAULT 0.00,
    tax DECIMAL(10,2) DEFAULT 0.00,
    total DECIMAL(10,2) DEFAULT 0.00,
    status TEXT DEFAULT 'pending', 
    created_at TIMESTAMP DEFAULT NOW()
  );
`).catch(console.error);

// --- CATÁLOGO DE ARTÍCULOS ---
app.get("/articles", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT * FROM articles WHERE owner_id=$1 ORDER BY name ASC", [req.user.accountId]);
        res.json({ ok: true, articles: q.rows });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.post("/articles", authMiddleware, async (req, res) => {
    try {
        const { name, price } = req.body;
        await pool.query("INSERT INTO articles (owner_id, name, price) VALUES ($1, $2, $3)", [req.user.accountId, name, price]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.put("/articles/:id", authMiddleware, async (req, res) => {
    try {
        const { name, price } = req.body;
        await pool.query("UPDATE articles SET name=$1, price=$2 WHERE id=$3 AND owner_id=$4", [name, price, req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

// --- PRESUPUESTOS ---
app.get("/budgets", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query(`
            SELECT b.*, 
                   s.status as linked_service_status,
                   st.name as linked_service_status_name
            FROM budgets b
            LEFT JOIN scraped_services s ON s.service_ref = 'PRE-' || b.id AND s.owner_id = b.owner_id
            LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
            WHERE b.owner_id=$1 
            ORDER BY b.created_at DESC
        `, [req.user.accountId]);
        res.json({ ok: true, budgets: q.rows });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.post("/budgets", authMiddleware, async (req, res) => {
    try {
        const { client_phone, client_name, client_address, items, subtotal, tax, total } = req.body;
        await pool.query(
            "INSERT INTO budgets (owner_id, client_phone, client_name, client_address, items, subtotal, tax, total) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)",
            [req.user.accountId, client_phone, client_name, client_address, JSON.stringify(items), subtotal, tax, total]
        );
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.patch("/budgets/:id/status", authMiddleware, async (req, res) => {
    try {
        await pool.query("UPDATE budgets SET status=$1 WHERE id=$2 AND owner_id=$3", [req.body.status, req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { res.status(500).json({ok: false}); }
});

app.delete("/budgets/:id", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT status FROM budgets WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]);
        if (q.rowCount === 0) return res.status(404).json({ok: false, error: "No encontrado"});
        
        const status = q.rows[0].status;
        
        const sq = await pool.query(`
            SELECT st.name as status_name
            FROM scraped_services s
            LEFT JOIN service_statuses st ON st.id::text = (s.raw_data->>'status_operativo')::text
            WHERE s.service_ref = $1 AND s.owner_id = $2
        `, [`PRE-${req.params.id}`, req.user.accountId]);

        let isAnulado = false;
        if (sq.rowCount > 0 && sq.rows[0].status_name && sq.rows[0].status_name.toLowerCase().includes('anulado')) {
            isAnulado = true;
        }
        
        if ((status === 'accepted' || status === 'converted') && !isAnulado) {
            return res.status(400).json({ok: false, error: "Para poder borrar un presupuesto, el servicio primero debe estar anulado."});
        }
        
        await pool.query("DELETE FROM budgets WHERE id=$1 AND owner_id=$2", [req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch(e) { 
        res.status(500).json({ok: false, error: "Error interno"}); 
    }
});


// ==========================================
// 🕒 EL RELOJ DEL SISTEMA (Ejecutar cada minuto)
// ==========================================
setInterval(async () => {
    const client = await pool.connect(); // <-- Conectamos de forma segura
    try {
       const expiredPings = await client.query(`
            SELECT ap.id, ap.scraped_id, ap.user_id, s.owner_id, s.raw_data
            FROM assignment_pings ap
            JOIN scraped_services s ON ap.scraped_id = s.id
            WHERE ap.status = 'pending' 
            AND EXTRACT(EPOCH FROM (ap.expires_at - CURRENT_TIMESTAMP)) <= 0
            AND s.automation_status = 'in_progress'
        `); 

        for (const ping of expiredPings.rows) {
            await client.query("UPDATE assignment_pings SET status = 'expired' WHERE id = $1", [ping.id]);
            const nextWorkerQ = await client.query(`
                SELECT u.id, u.phone, u.full_name 
                FROM users u
                JOIN user_guilds ug ON u.id = ug.user_id
                WHERE u.owner_id = $1 AND u.status = 'active'
                AND u.id NOT IN (SELECT user_id FROM assignment_pings WHERE scraped_id = $2)
                LIMIT 1
            `, [ping.owner_id, ping.scraped_id]);

            if (nextWorkerQ.rowCount > 0) {
                const nextW = nextWorkerQ.rows[0];
                const newToken = crypto.randomBytes(16).toString('hex');
                await client.query(`INSERT INTO assignment_pings (scraped_id, user_id, token, expires_at) VALUES ($1, $2, $3, CURRENT_TIMESTAMP + INTERVAL '5 minutes')`, [ping.scraped_id, nextW.id, newToken]);
                
                const mensaje = `🛠️ *SERVICIO DISPONIBLE*\nEl anterior compañero no respondió. Es tu turno:\n🔗 https://integrarepara.es/aceptar.html?t=${newToken}`;
                const instanceName = `cliente_${ping.owner_id}`;
                sendWhatsAppAuto(nextW.phone, mensaje, instanceName).catch(console.error);
            } else {
                await client.query("UPDATE scraped_services SET automation_status = 'failed' WHERE id = $1", [ping.scraped_id]);
            }
        }
    } catch (e) { 
        console.error("Reloj:", e); 
    } finally {
        client.release(); // <-- Liberamos la conexión SIEMPRE
    }
}, 60000);

const port = process.env.PORT || 3000;
autoUpdateDB().then(() => { app.listen(port, "0.0.0.0", () => console.log(`🚀 Server OK en puerto ${port}`)); });