import { chromium } from 'playwright';
import pg from 'pg';

// En Coolify las variables se inyectan solas
const { DATABASE_URL } = process.env;

if (!DATABASE_URL) {
    console.error("❌ Error: No hay DATABASE_URL definida.");
    process.exit(1);
}

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

// CONFIGURACIÓN
const HEADLESS = true; // En servidor SIEMPRE true

async function main() {
    console.log("🤖 INICIANDO ROBOT UNIFICADO (MEJORADO)...");
    
    while (true) {
        const client = await pool.connect();
        try {
            // 1. Obtener credenciales activas
            const res = await client.query("SELECT * FROM provider_credentials WHERE status = 'active'");
            const credentials = res.rows;

            console.log(`📋 Procesando ${credentials.length} cuentas de proveedores...`);

            for (const cred of credentials) {
                let password = "";
                try {
                    password = Buffer.from(cred.password_hash, 'base64').toString('utf-8');
                } catch (e) {
                    console.error(`Error decodificando pass para usuario ${cred.owner_id}`);
                    continue;
                }
                
                console.log(`\n🔄 Sincronizando ${cred.provider.toUpperCase()} para usuario ID ${cred.owner_id}...`);

                if (cred.provider === 'multiasistencia') {
                    await runMultiasistencia(cred.owner_id, cred.username, password);
                } else if (cred.provider === 'homeserve') {
                    await runHomeserve(cred.owner_id, cred.username, password);
                }

                // Actualizar timestamp
                await client.query("UPDATE provider_credentials SET last_sync = NOW() WHERE id = $1", [cred.id]);
            }

        } catch (e) {
            console.error("❌ Error en ciclo principal:", e);
        } finally {
            client.release();
        }

        // ESPERA DE 15 MINUTOS
        console.log("\n💤 Durmiendo 15 minutos...");
        await new Promise(r => setTimeout(r, 15 * 60 * 1000));
    }
}

// ==========================================
// 🛠️ ROBOT MULTIASISTENCIA (CORREGIDO)
// ==========================================
async function runMultiasistencia(ownerId, user, pass) {
    const browser = await chromium.launch({ headless: HEADLESS, args: ['--no-sandbox'] });
    const context = await browser.newContext();
    const page = await context.newPage();

    try {
        console.log("🌍 [Multi] Conectando...");
        await page.goto('https://web.multiasistencia.com/w3multi/acceso.php', { timeout: 60000 });

        // Login
        const userInput = await page.$('input[name="usuario"]') || await page.$('input[type="text"]');
        if(userInput) {
            await userInput.fill(user);
            await page.fill('input[type="password"]', pass);
            await page.click('input[type="submit"]');
            await page.waitForTimeout(4000);
        }

        // Ir a listado
        await page.goto('https://web.multiasistencia.com/w3multi/frepasos_new.php?refresh=1', { waitUntil: 'domcontentloaded' });
        
        // Sacar expedientes
        const expedientes = await page.evaluate(() => {
            const links = Array.from(document.querySelectorAll('a[href*="reparacion="]'));
            return Array.from(new Set(links.map(a => a.href.match(/reparacion=(\d+)/)?.[1]).filter(Boolean)));
        });

        console.log(`🔍 [Multi] ${expedientes.length} expedientes encontrados.`);

        for (const ref of expedientes) {
            await page.goto(`https://web.multiasistencia.com/w3multi/repasos1.php?reparacion=${ref}`, { waitUntil: 'domcontentloaded' });
            
            // --- NUEVA LÓGICA DE EXTRACCIÓN POR CELDAS ---
            const data = await page.evaluate(() => {
                
                // Función auxiliar para buscar en celdas vecinas
                const findValueByHeader = (keywords) => {
                    const cells = Array.from(document.querySelectorAll('td, th'));
                    for (const cell of cells) {
                        const text = (cell.innerText || "").toUpperCase().trim();
                        // Si la celda contiene una de las palabras clave
                        if (keywords.some(k => text.includes(k.toUpperCase()))) {
                            // Devolvemos el texto de la celda SIGUIENTE
                            const nextCell = cell.nextElementSibling;
                            if (nextCell) return nextCell.innerText.trim();
                        }
                    }
                    return "";
                };

                // Función auxiliar para descripción (busca bloques de texto grandes)
                const findDescription = () => {
                    // Intento 1: Buscar celda "Descripción"
                    let desc = findValueByHeader(['Descripción', 'Daños', 'Solicitud']);
                    if(desc) return desc;

                    // Intento 2: Buscar en el cuerpo general si falla la tabla
                    const body = document.body.innerText;
                    const match = body.match(/Descripción\s*[:\-]?\s*([^\n]+)/i);
                    return match ? match[1].trim() : "";
                }

                // Extracción más precisa
                let address = findValueByHeader(['Dirección', 'Domicilio', 'Riesgo']);
                let pob = findValueByHeader(['Población', 'Localidad']);
                let cp = findValueByHeader(['C.P.', 'Postal']);
                
                // Limpieza de dirección (quitar "Baremo" si se cuela)
                if (address.includes("Baremo")) address = address.split("Baremo")[0].trim();

                // Unir dirección completa
                let fullAddress = address;
                if (pob) fullAddress += `, ${pob}`;
                if (cp) fullAddress += ` (${cp})`;

                return {
                    clientName: findValueByHeader(['Nombre Cliente', 'Asegurado']) || "Desconocido",
                    address: fullAddress || "Sin dirección detectada",
                    phone: (document.body.innerText.match(/[6789]\d{8}/) || [])[0] || "",
                    description: findDescription()
                };
            });

            if (data.clientName) {
                // Solo guardamos si tenemos al menos un nombre
                await saveServiceToDB(ownerId, 'multiasistencia', ref, data);
            }
        }

    } catch (e) {
        console.error("❌ [Multi] Error:", e.message);
    } finally {
        await browser.close();
    }
}

// ==========================================
// 🛠️ ROBOT HOMESERVE (MANTENIDO)
// ==========================================
async function runHomeserve(ownerId, user, pass) {
    const browser = await chromium.launch({ headless: HEADLESS, args: ['--no-sandbox'] });
    const page = await browser.newPage();

    try {
        console.log("🌍 [HomeServe] Conectando...");
        await page.goto('https://www.clientes.homeserve.es/cgi-bin/fccgi.exe?w3exec=PROF_PASS', { timeout: 60000 });

        if (await page.isVisible('input[name="CODIGO"]')) {
            await page.fill('input[name="CODIGO"]', user);
            await page.fill('input[type="password"]', pass);
            await page.keyboard.press('Enter');
            await page.waitForTimeout(5000);
        }

        await page.goto('https://www.clientes.homeserve.es/cgi-bin/fccgi.exe?w3exec=lista_servicios_total');
        
        const refs = await page.evaluate(() => {
            const filas = Array.from(document.querySelectorAll('table tr'));
            return filas.map(tr => tr.querySelector('td')?.innerText.trim()).filter(t => /^\d{4,}$/.test(t));
        });

        console.log(`🔍 [HomeServe] ${refs.length} expedientes encontrados.`);

        for (const ref of refs) {
            try {
                await page.goto('https://www.clientes.homeserve.es/cgi-bin/fccgi.exe?w3exec=lista_servicios_total');
                await page.click(`text="${ref}"`, { timeout: 5000 });
                await page.waitForTimeout(1000);

                const data = await page.evaluate(() => {
                    const rows = Array.from(document.querySelectorAll('tr'));
                    const d = {};
                    rows.forEach(r => {
                        const cells = r.querySelectorAll('td');
                        if(cells.length > 1) {
                            const k = cells[0].innerText.toUpperCase();
                            const v = cells[1].innerText;
                            if(k.includes("CLIENTE")) d.clientName = v;
                            if(k.includes("DOMICILIO")) d.address = v;
                            if(k.includes("POBLACION")) d.address += ", " + v;
                            if(k.includes("TELEFONOS")) d.phone = v;
                            if(k.includes("COMENTARIOS") || k.includes("AVERIA")) d.description = v;
                        }
                    });
                    return d;
                });

                if (data.clientName) {
                    await saveServiceToDB(ownerId, 'homeserve', ref, data);
                }

            } catch (e) { console.error(`Error leyendo ${ref}: ${e.message}`); }
        }

    } catch (e) {
        console.error("❌ [HomeServe] Error:", e.message);
    } finally {
        await browser.close();
    }
}

// ==========================================
// 💾 GUARDADO EN BASE DE DATOS
// ==========================================
async function saveServiceToDB(ownerId, provider, ref, data) {
    // Verificar si ya existe en servicios reales (para no duplicar trabajo)
    const exists = await pool.query("SELECT id FROM services WHERE company_ref = $1 AND owner_id = $2", [ref, ownerId]);
    if (exists.rowCount > 0) return;

    // Verificar si ya existe en buzón, si existe ACTUALIZAMOS los datos (por si hemos mejorado el scraping)
    console.log(`💾 Guardando/Actualizando: ${ref} (${data.address})`);
    
    await pool.query(`
        INSERT INTO scraped_services (owner_id, provider, service_ref, raw_data, status)
        VALUES ($1, $2, $3, $4, 'pending')
        ON CONFLICT (owner_id, provider, service_ref) 
        DO UPDATE SET raw_data = EXCLUDED.raw_data, created_at = NOW()
    `, [ownerId, provider, ref, JSON.stringify(data)]);
}

main();