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

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

app.use(cors());
app.use(express.json());

// 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 NUEVA CARGADA - CON MAPEADOR REAL"); 
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,
        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,
        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',
        created_at TIMESTAMP DEFAULT NOW(),
        UNIQUE(owner_id, provider, service_ref)
      );

      -- 🗺️ TABLA DE MAPEO DE VARIABLES (NUEVO)
      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()
      );
    `);

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

        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)); }

// 🛡️ MIDDLEWARE DE PLANES
async function requirePlan(req, res, next, feature) {
    try {
        const q = await pool.query("SELECT plan_tier, subscription_status FROM users WHERE id=$1", [req.user.accountId]);
        const userPlan = q.rows[0]?.plan_tier || 'free';
        const limits = PLAN_LIMITS[userPlan];
        if (!limits || !limits[feature]) return res.status(403).json({ ok: false, error: `Función solo para plan ${feature === 'automation_enabled' ? 'PRO' : 'ESTÁNDAR'}` });
        next();
    } catch (e) { res.status(500).json({ ok: false, error: "Error plan" }); }
}

// --- WHATSAPP UTILS ---
async function sendWhatsAppCode(phone, code) {
    if (!EVOLUTION_BASE_URL || !EVOLUTION_API_KEY || !EVOLUTION_INSTANCE) { console.error("❌ Faltan datos WhatsApp"); return; }
    try {
        await fetch(`${EVOLUTION_BASE_URL.replace(/\/$/, "")}/message/sendText/${EVOLUTION_INSTANCE}`, {
            method: "POST", headers: { "Content-Type": "application/json", "apikey": EVOLUTION_API_KEY },
            body: JSON.stringify({ number: phone.replace("+", ""), text: `🔐 Código: *${code}*` })
        });
    } catch (e) { console.error("Error envío WA:", e.message); }
}

async function ensureInstance(instanceName) {
    if (!EVOLUTION_BASE_URL || !EVOLUTION_API_KEY) throw new Error("Faltan variables EVOLUTION");
    const baseUrl = EVOLUTION_BASE_URL.replace(/\/$/, "");
    const headers = { "Content-Type": "application/json", "apikey": EVOLUTION_API_KEY.trim() };
    const checkRes = await fetch(`${baseUrl}/instance/connectionState/${instanceName}`, { headers });
    if (checkRes.status === 404) {
        await fetch(`${baseUrl}/instance/create`, {
            method: 'POST', headers,
            body: JSON.stringify({ instanceName: instanceName, qrcode: true, integration: "WHATSAPP-BAILEYS" })
        });
    }
    return { baseUrl, headers };
}

// RUTAS AUTH
app.post("/auth/register", async (req, res) => { const client = await pool.connect(); try { const { fullName, phone, address, dni, email, password } = req.body; const p = normalizePhone(phone); if (!fullName || !p || !email || !password) return res.status(400).json({ ok: false }); const passwordHash = await bcrypt.hash(password, 10); await client.query('BEGIN'); const insert = await client.query("INSERT INTO users (full_name, phone, address, dni, email, password_hash, role, owner_id, plan_tier) VALUES ($1, $2, $3, $4, $5, $6, 'admin', NULL, 'free') RETURNING id", [fullName, p, address, dni, email, passwordHash]); const userId = insert.rows[0].id; const code = genCode6(); const codeHash = await bcrypt.hash(code, 10); const expiresAt = new Date(Date.now() + 10 * 60 * 1000); await client.query("INSERT INTO login_codes (user_id, phone, code_hash, expires_at) VALUES ($1, $2, $3, $4)", [userId, p, codeHash, expiresAt]); 
    await sendWhatsAppCode(p, code); 
    await client.query('COMMIT'); res.json({ ok: true, phone: p }); } catch (e) { await client.query('ROLLBACK'); res.status(500).json({ ok: false }); } finally { client.release(); } });
app.post("/auth/verify", async (req, res) => { try { const { phone, code } = req.body; const p = normalizePhone(phone); const q = await pool.query(`SELECT lc.*, u.id as uid, u.email, u.role, u.owner_id FROM login_codes lc JOIN users u ON lc.user_id = u.id WHERE lc.phone=$1 AND lc.consumed_at IS NULL AND lc.expires_at > NOW() ORDER BY lc.created_at DESC LIMIT 1`, [p]); if (q.rowCount === 0) return res.status(400).json({ ok: false }); const row = q.rows[0]; if (!(await bcrypt.compare(String(code), row.code_hash))) return res.status(400).json({ ok: false }); await pool.query("UPDATE login_codes SET consumed_at=NOW() WHERE id=$1", [row.id]); await pool.query("UPDATE users SET is_verified=TRUE WHERE id=$1", [row.uid]); res.json({ ok: true, token: signToken({ id: row.uid, email: row.email, phone: p, role: row.role, owner_id: row.owner_id }) }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/auth/login", async (req, res) => { try { const { email, password } = req.body; const q = await pool.query("SELECT * FROM users WHERE email=$1", [email]); if (q.rowCount === 0) return res.status(401).json({ ok: false }); let user = null; for (const u of q.rows) { if (await bcrypt.compare(password, u.password_hash)) { user = u; break; } } if (!user) return res.status(401).json({ ok: false }); res.json({ ok: true, token: signToken(user) }); } catch(e) { res.status(500).json({ ok: false }); } });

// ==========================================
// 🚀 GESTIÓN WHATSAPP (CON RESTRICCIÓN DE PLAN)
// ==========================================
app.get("/whatsapp/status", authMiddleware, (req, res, next) => requirePlan(req, res, next, 'whatsapp_enabled'), async (req, res) => {
    try {
        const instanceName = `cliente_${req.user.accountId}`;
        const { baseUrl, headers } = await ensureInstance(instanceName);
        const stateRes = await fetch(`${baseUrl}/instance/connectionState/${instanceName}`, { headers });
        const stateData = await stateRes.json();
        const state = stateData.instance?.state || "close";
        let qr = null;
        if (state !== "open") {
            const qrRes = await fetch(`${baseUrl}/instance/connect/${instanceName}`, { headers });
            const qrData = await qrRes.json();
            qr = qrData.code || qrData.base64;
        }
        res.json({ ok: true, state, qr, instanceName });
    } catch (e) { res.status(500).json({ ok: false, error: e.message }); }
});

// ==========================================
// 🤖 GESTIÓN DE PROVEEDORES Y ROBOTS
// ==========================================
app.get("/providers/credentials", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query("SELECT provider, username, last_sync, status FROM provider_credentials WHERE owner_id=$1", [req.user.accountId]);
        res.json({ ok: true, credentials: q.rows });
    } catch (e) { res.status(500).json({ ok: 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 }); }
});

// RUTA CORREGIDA: Ahora entrega todos los servicios para que el filtro del panel funcione
app.get("/providers/scraped", authMiddleware, async (req, res) => {
    try {
        // Eliminado el filtro status='pending' para permitir ver archivados
        const q = await pool.query(
            "SELECT * FROM scraped_services WHERE owner_id=$1 ORDER BY created_at DESC", 
            [req.user.accountId]
        );
        res.json({ ok: true, services: q.rows });
    } catch (e) { 
        console.error("❌ Error al obtener servicios:", e.message);
        res.status(500).json({ ok: false }); 
    }
});

// 📥 IMPORTACIÓN DEFINITIVA CON MAPEADOR DE VARIABLES
app.post("/providers/import/:id", authMiddleware, async (req, res) => {
    const client = await pool.connect();
    try {
        const scrapedId = req.params.id;
        await client.query('BEGIN');

        // 1. Obtener los datos crudos del robot
        const scrapedQ = await client.query(
            "SELECT * FROM scraped_services WHERE id=$1 AND owner_id=$2", 
            [scrapedId, req.user.accountId]
        );
        if (scrapedQ.rowCount === 0) return res.status(404).json({ ok: false, error: "No encontrado" });
        
        const raw = scrapedQ.rows[0].raw_data;
        const provider = scrapedQ.rows[0].provider;
        const ref = scrapedQ.rows[0].service_ref;

        // 2. Obtener tus reglas de mapeo que acabas de guardar
        const mappingQ = await client.query(
            "SELECT original_key, target_key FROM variable_mappings WHERE owner_id=$1 AND provider=$2 AND is_ignored=FALSE",
            [req.user.accountId, provider]
        );

        // 3. Crear el objeto final "limpio" basado en tus reglas
        const cleanData = {};
        mappingQ.rows.forEach(m => {
            if (raw[m.original_key]) {
                cleanData[m.target_key] = raw[m.original_key];
            }
        });

        // 4. Buscar/Crear Cliente (Usando tus campos mapeados)
        const phone = cleanData.phone || cleanData.phone2 || "";
        const name = cleanData.clientName || "Cliente Importado";
        const address = cleanData.address || "";
        
        const phoneClean = normalizePhone(phone);
        let clientId = null;
        if (phoneClean) {
            const cCheck = await client.query("SELECT id FROM clients WHERE phone=$1 AND owner_id=$2", [phoneClean, req.user.accountId]);
            if (cCheck.rowCount > 0) clientId = cCheck.rows[0].id;
        }
        if (!clientId) {
            const newC = await client.query(
                "INSERT INTO clients (owner_id, full_name, phone, addresses) VALUES ($1, $2, $3, $4) RETURNING id", 
                [req.user.accountId, name, phoneClean, JSON.stringify([address])]
            );
            clientId = newC.rows[0].id;
        }

        // 5. Insertar el Servicio Final
        const statusQ = await client.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND is_default=TRUE LIMIT 1", [req.user.accountId]);
        
        const insertSvc = await client.query(`
            INSERT INTO services (
                owner_id, client_id, status_id, company_ref, title, description, address, contact_phone, contact_name,
                is_company, import_source, provider_data, scheduled_date
            ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13) RETURNING id
        `, [
            req.user.accountId, 
            clientId, 
            statusQ.rows[0]?.id, 
            ref,
            `${provider.toUpperCase()} - ${ref}`, 
            cleanData.descripcion || "Sin descripción", 
            address, 
            phoneClean, 
            name, 
            true, 
            provider, 
            JSON.stringify(cleanData), // Guardamos todo tu mapeo limpio aquí
            cleanData.fecha_cita || 'NOW()'
        ]);

        // 6. Marcar como importado
        await client.query("UPDATE scraped_services SET status='imported' WHERE id=$1", [scrapedId]);
        
        await client.query('COMMIT');
        res.json({ ok: true, serviceId: insertSvc.rows[0].id });
    } catch (e) { 
        await client.query('ROLLBACK'); 
        console.error(e); 
        res.status(500).json({ ok: false, error: e.message }); 
    } finally { 
        client.release(); 
    }
});

// NUEVA RUTA CORREGIDA PARA GUARDAR GREMIO Y OPERARIO
app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
    const { id } = req.params;
    const { 
        name, phone, address, cp, description, 
        guild_id, assigned_to, internal_notes, client_notes, is_urgent 
    } = req.body;

    try {
        const current = await pool.query(
            'SELECT raw_data 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: 'Expediente no encontrado' });
        }

        // MEZCLAMOS LOS DATOS: Guardamos los campos nuevos dentro de raw_data
        const updatedRawData = {
            ...current.rows[0].raw_data,
            "Nombre Cliente": name,
            "Teléfono": phone,
            "Dirección": address,
            "Código Postal": cp,
            "Descripción": description,
            "Urgente": is_urgent ? "Sí" : "No",
            // IMPORTANTE: Guardamos estos para que al recargar aparezcan
            "guild_id": guild_id,
            "assigned_to": assigned_to,
            "internal_notes": internal_notes,
            "client_notes": client_notes
        };

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

        res.json({ ok: true, message: 'Borrador actualizado correctamente' });
    } catch (error) {
        console.error('Error al actualizar borrador:', error);
        res.status(500).json({ error: 'Error interno del servidor' });
    }
});

// ==========================================
// 🗺️ MAPEADOR (VERSIÓN LIMPIA: SOLO EL ÚLTIMO SERVICIO)
// ==========================================
app.get("/discovery/keys/:provider", authMiddleware, async (req, res) => {
    try {
        const { provider } = req.params;
        
        // Buscamos solo el último servicio para que la lista sea corta y real
        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, error: e.message }); 
    }
});

// RUTA NUEVA: Entrega todos los mapeos guardados por el usuario
app.get("/discovery/mappings", authMiddleware, async (req, res) => {
    try {
        const q = await pool.query(
            "SELECT provider, original_key, target_key FROM variable_mappings WHERE owner_id = $1",
            [req.user.accountId]
        );
        res.json(q.rows); 
    } catch (e) {
        res.status(500).json({ ok: false, error: e.message });
    }
});

app.post("/discovery/save", authMiddleware, async (req, res) => {
    const client = await pool.connect();
    try {
        const { provider, mappings } = req.body; 
        await client.query('BEGIN');
        for (const m of mappings) {
            await client.query(`
                INSERT INTO variable_mappings (owner_id, provider, original_key, target_key, is_ignored)
                VALUES ($1, $2, $3, $4, $5)
                ON CONFLICT (owner_id, provider, original_key) 
                DO UPDATE SET target_key = EXCLUDED.target_key, is_ignored = EXCLUDED.is_ignored
            `, [req.user.accountId, provider, m.original, m.target, m.ignored]);
        }
        await client.query('COMMIT');
        res.json({ ok: true });
    } catch (e) { 
        await client.query('ROLLBACK'); 
        res.status(500).json({ ok: false, error: e.message }); 
    } finally { 
        client.release(); 
    }
});

// =========================
// 👥 GESTIÓN DE CLIENTES
// =========================
app.get("/clients", authMiddleware, async (req, res) => {
    try {
        const { search } = req.query;
        let query = `SELECT c.*, (SELECT COUNT(*) FROM services s WHERE s.client_id = c.id) as service_count FROM clients c WHERE c.owner_id = $1`;
        const params = [req.user.accountId];
        if (search) { query += ` AND (c.full_name ILIKE $2 OR c.phone ILIKE $2)`; params.push(`%${search}%`); }
        query += ` ORDER BY c.created_at DESC LIMIT 50`;
        const q = await pool.query(query, params);
        res.json({ ok: true, clients: q.rows });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.get("/clients/:id/details", authMiddleware, async (req, res) => {
    try {
        const clientId = req.params.id;
        const clientQ = await pool.query("SELECT * FROM clients WHERE id=$1 AND owner_id=$2", [clientId, req.user.accountId]);
        if (clientQ.rowCount === 0) return res.status(404).json({ ok: false });
        const servicesQ = await pool.query(`SELECT s.*, st.name as status_name, st.color as status_color, u.full_name as assigned_name FROM services s LEFT JOIN service_statuses st ON s.status_id = st.id LEFT JOIN users u ON s.assigned_to = u.id WHERE s.client_id = $1 ORDER BY s.created_at DESC`, [clientId]);
        res.json({ ok: true, client: clientQ.rows[0], services: servicesQ.rows });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.post("/clients", authMiddleware, async (req, res) => {
    try {
        const { full_name, phone, email, address, notes } = req.body;
        const p = normalizePhone(phone);
        const q = await pool.query("INSERT INTO clients (owner_id, full_name, phone, email, addresses, notes) VALUES ($1, $2, $3, $4, $5, $6) RETURNING id", [req.user.accountId, full_name, p, email, JSON.stringify([address]), notes]);
        res.json({ ok: true, id: q.rows[0].id });
    } catch (e) { res.status(500).json({ ok: false }); }
});

app.put("/clients/:id", authMiddleware, async (req, res) => {
    try {
        const { full_name, email, notes, addresses } = req.body;
        await pool.query("UPDATE clients SET full_name=$1, email=$2, notes=$3, addresses=$4 WHERE id=$5 AND owner_id=$6", [full_name, email, notes, JSON.stringify(addresses), req.params.id, req.user.accountId]);
        res.json({ ok: true });
    } catch (e) { res.status(500).json({ ok: false }); }
});

// GESTIÓN DE ESTADOS Y SERVICIOS BÁSICOS
app.get("/statuses", authMiddleware, async (req, res) => { try { let q = await pool.query("SELECT * FROM service_statuses WHERE owner_id=$1 ORDER BY id ASC", [req.user.accountId]); if (q.rowCount === 0) { const defaults = [{name:'Pendiente',c:'gray',d:true,f:false},{name:'En Proceso',c:'blue',d:false,f:false},{name:'Terminado',c:'green',d:false,f:true},{name:'Cancelado',c:'red',d:false,f:true}]; for (const s of defaults) await pool.query("INSERT INTO service_statuses (owner_id,name,color,is_default,is_final) VALUES ($1,$2,$3,$4,$5)", [req.user.accountId,s.name,s.c,s.d,s.f]); q = await pool.query("SELECT * FROM service_statuses WHERE owner_id=$1 ORDER BY id ASC", [req.user.accountId]); } res.json({ ok: true, statuses: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/statuses", authMiddleware, async (req, res) => { try { const { name, color } = req.body; await pool.query("INSERT INTO service_statuses (owner_id, name, color) VALUES ($1, $2, $3)", [req.user.accountId, name, color || 'gray']); res.json({ ok: true }); } catch(e) { res.status(500).json({ ok: false }); } });
app.delete("/statuses/:id", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const statusId = req.params.id; const check = await client.query("SELECT COUNT(*) FROM services WHERE status_id = $1 AND owner_id = $2", [statusId, req.user.accountId]); if (parseInt(check.rows[0].count) > 0) return res.status(400).json({ ok: false, error: "En uso" }); await client.query("DELETE FROM service_statuses WHERE id=$1 AND owner_id=$2", [statusId, req.user.accountId]); res.json({ ok: true }); } catch(e) { res.status(500).json({ ok: false }); } finally { client.release(); } });

// RESTO DE ENDPOINTS
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 }); } });
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 }); } });
app.get("/operators", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT id, full_name FROM users WHERE owner_id=$1 AND role='operario' ORDER BY full_name ASC", [req.user.accountId]); 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("/services", authMiddleware, async (req, res) => { try { const q = await pool.query(`SELECT s.*, st.name as status_name, st.color as status_color, c.name as company_name, g.name as guild_name, u.full_name as assigned_name FROM services s LEFT JOIN service_statuses st ON s.status_id = st.id LEFT JOIN companies c ON s.company_id = c.id LEFT JOIN guilds g ON s.guild_id = g.id LEFT JOIN users u ON s.assigned_to = u.id WHERE s.owner_id=$1 ORDER BY s.created_at DESC`, [req.user.accountId]); res.json({ ok: true, services: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.get("/services/:id", authMiddleware, async (req, res) => { try { const q = await pool.query(`SELECT * FROM services WHERE id=$1 AND owner_id=$2`, [req.params.id, req.user.accountId]); res.json({ ok: true, service: q.rows[0] }); } catch (e) { res.status(500).json({ ok: false }); } });
app.get("/services/:id/logs", authMiddleware, async (req, res) => { try { const q = await pool.query(`SELECT l.*, u.full_name as user_name, s2.name as new_status, s2.color as new_color FROM service_logs l LEFT JOIN users u ON l.user_id=u.id LEFT JOIN service_statuses s2 ON l.new_status_id=s2.id WHERE l.service_id=$1 ORDER BY l.created_at DESC`, [req.params.id]); res.json({ ok: true, logs: q.rows }); } catch (e) { res.status(500).json({ ok: false }); } });
app.put("/services/:id/status", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { status_id, comment } = req.body; await client.query('BEGIN'); const curr = await client.query("SELECT status_id FROM services WHERE id=$1", [req.params.id]); const old = curr.rows[0].status_id; await client.query("UPDATE services SET status_id=$1 WHERE id=$2", [status_id, req.params.id]); await client.query("INSERT INTO service_logs (service_id, user_id, old_status_id, new_status_id, comment) VALUES ($1, $2, $3, $4, $5)", [req.params.id, req.user.sub, old, status_id, comment]); await client.query('COMMIT'); res.json({ ok: true }); } catch (e) { await client.query('ROLLBACK'); res.status(500).json({ ok: false }); } finally { client.release(); } });
app.post("/services", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { phone, name, address, email, description, scheduled_date, scheduled_time, duration, is_urgent, is_company, company_id, company_ref, internal_notes, client_notes, status_id, guild_id, assigned_to } = req.body; const p = normalizePhone(phone); await client.query('BEGIN'); let finalStatus = status_id; if (!finalStatus) { const def = await client.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND is_default=TRUE LIMIT 1", [req.user.accountId]); finalStatus = def.rows[0]?.id; } let clientId; const cCheck = await client.query("SELECT id, addresses FROM clients WHERE phone=$1 AND owner_id=$2", [p, req.user.accountId]); if (cCheck.rowCount > 0) { clientId = cCheck.rows[0].id; let addrs = cCheck.rows[0].addresses || []; if(!addrs.includes(address)) { addrs.push(address); await client.query("UPDATE clients SET addresses=$1 WHERE id=$2", [JSON.stringify(addrs), clientId]); } } else { const newC = await client.query("INSERT INTO clients (owner_id, full_name, phone, email, addresses) VALUES ($1, $2, $3, $4, $5) RETURNING id", [req.user.accountId, name, p, email, JSON.stringify([address])]); clientId = newC.rows[0].id; } const insert = await client.query(`INSERT INTO services (owner_id, client_id, status_id, contact_phone, contact_name, address, email, description, scheduled_date, scheduled_time, duration_minutes, is_urgent, is_company, company_id, company_ref, internal_notes, client_notes, title, guild_id, assigned_to) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20) RETURNING id`, [req.user.accountId, clientId, finalStatus, p, name, address, email, description, scheduled_date || 'NOW()', scheduled_time || 'NOW()', (duration || 30), (is_urgent || false), (is_company || false), (company_id || null), company_ref, internal_notes, client_notes, name + " - Svc", (guild_id || null), (assigned_to || null)]); await client.query("INSERT INTO service_logs (service_id, user_id, new_status_id, comment) VALUES ($1, $2, $3, 'Servicio Creado')", [insert.rows[0].id, req.user.sub, finalStatus]); await client.query('COMMIT'); res.json({ ok: true }); } catch (e) { await client.query('ROLLBACK'); console.error(e); res.status(500).json({ ok: false, error: e.message }); } finally { client.release(); } });
app.put("/services/:id", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { name, address, email, description, scheduled_date, scheduled_time, duration, is_urgent, is_company, company_id, company_ref, internal_notes, client_notes, guild_id, assigned_to } = req.body; await client.query('BEGIN'); await client.query(`UPDATE services SET contact_name=$1, address=$2, email=$3, description=$4, scheduled_date=$5, scheduled_time=$6, duration_minutes=$7, is_urgent=$8, is_company=$9, company_id=$10, company_ref=$11, internal_notes=$12, client_notes=$13, guild_id=$14, assigned_to=$15 WHERE id=$16 AND owner_id=$17`, [name, address, email, description, scheduled_date, scheduled_time, (duration || 30), (is_urgent || false), (is_company || false), (company_id || null), company_ref, internal_notes, client_notes, (guild_id || null), (assigned_to || null), req.params.id, req.user.accountId]); await client.query("INSERT INTO service_logs (service_id, user_id, new_status_id, comment) VALUES ($1, $2, (SELECT status_id FROM services WHERE id=$1), 'Datos editados')", [req.params.id, req.user.sub]); 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("/services/:id", authMiddleware, async (req, res) => { try { await pool.query("DELETE FROM services 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("/guilds", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT * 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.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, 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 } = 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) VALUES ($1, $2, $3, $4, $5, TRUE, $6) RETURNING id", [fullName, email, hash, role || 'operario', p, req.user.accountId]); 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 } = 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 WHERE id=$6", [fullName, email, p, role, hash, userId]); } else { await client.query("UPDATE users SET full_name=$1, email=$2, phone=$3, role=$4 WHERE id=$5", [fullName, email, p, role, 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 }); } });

// GESTIÓN DE SUBDOMINIO (EMPRESA)
app.get("/config/company", authMiddleware, async (req, res) => { try { const q = await pool.query("SELECT company_slug, full_name, plan_tier FROM users WHERE id=$1", [req.user.accountId]); res.json({ ok: true, slug: q.rows[0]?.company_slug, name: q.rows[0]?.full_name, plan: q.rows[0]?.plan_tier }); } catch (e) { res.status(500).json({ ok: false }); } });
app.post("/config/company", authMiddleware, async (req, res) => { const client = await pool.connect(); try { const { slug } = req.body; if (!slug || slug.length < 3) return res.status(400).json({ ok: false, error: "Mínimo 3 caracteres" }); const cleanSlug = slug.toLowerCase().replace(/[^a-z0-9-]/g, ""); if (cleanSlug !== slug) return res.status(400).json({ ok: false, error: "Carácteres inválidos" }); 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: "Nombre en uso" }); await client.query("UPDATE users SET company_slug=$1 WHERE id=$2", [cleanSlug, req.user.accountId]); res.json({ ok: true, fullUrl: `https://${cleanSlug}.integrarepara.es` }); } catch (e) { res.status(500).json({ ok: false }); } finally { client.release(); } });

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