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const fs = require('fs').promises; const { logger } = require('../config/logger'); const { pool } = require('../config/database'); const BillingService = require('./BillingService'); // WhatsApp modules (will be loaded per tenant) const WhatsAppConnection = require('./whatsapp/WhatsAppConnection'); const WhatsAppMessageHandler = require('./whatsapp/WhatsAppMessageHandler'); const WhatsAppMediaHandler = require('./whatsapp/WhatsAppMediaHandler'); const WhatsAppQRHandler = require('./whatsapp/WhatsAppQRHandler'); const WhatsAppStateManager = require('./whatsapp/WhatsAppStateManager'); /** * Multi-tenant WhatsApp Service * Manages separate WhatsApp instances for each tenant */ class WhatsAppService { constructor(io) { this.io = io; this.tenantInstances = new Map(); // tenantId => WhatsAppInstance this.sessionsPath = path.join(__dirname, '../sessions'); this.uploadsPath = path.join(__dirname, '../uploads'); this.rateLimits = new Map(); // key: `${tenantId}:${phone}` -> { lastSentAt, windowStart, windowCount } } /** * Initialize WhatsApp service for a tenant * @param {number} tenantId - Tenant ID * @param {Object} options - Configuration options * @returns {Promise<Object>} Instance details */ async initializeTenant(tenantId, options = {}) { try { // Check if tenant already has an instance if (this.tenantInstances.has(tenantId)) { const existingInstance = this.tenantInstances.get(tenantId); const isConnected = existingInstance.connection.isConnected(tenantId); logger.info(`Tenant ${tenantId} already has WhatsApp instance`, { isConnected }); // If already connected, return the instance if (isConnected) { return existingInstance; } // If not connected, try to initialize again logger.info(`Tenant ${tenantId} instance exists but not connected, reinitializing...`); const tenantState = existingInstance.connection.getTenantState(tenantId); const eventHandlers = tenantState ? tenantState.eventHandlers : {}; await existingInstance.connection.initialize(tenantId, eventHandlers); return existingInstance; } let tenant; // Special case: tenant 0 is superadmin (system notifications) if (tenantId === 0) { tenant = { id: 0, name: 'Superadmin', subdomain: 'superadmin', status: 'active' }; logger.info('Initializing WhatsApp for superadmin notifications (tenant 0)'); } else { // Verify tenant exists and is active const connection = await pool.getConnection(); const [tenants] = await connection.query( 'SELECT * FROM tenants WHERE id = ? AND status = ?', [tenantId, 'active'] ); connection.release(); if (!tenants.length) { throw new Error('Tenant not found or inactive'); } tenant = tenants[0]; } // Create tenant-specific paths const tenantSessionPath = path.join(this.sessionsPath, `tenant_${tenantId}`); const tenantUploadPath = path.join(this.uploadsPath, `tenant_${tenantId}`); // Ensure directories exist (parallel for speed) await Promise.all([ fs.mkdir(tenantSessionPath, { recursive: true }), fs.mkdir(tenantUploadPath, { recursive: true }) ]); // Create tenant-specific Socket.IO namespace const tenantNamespace = this.io.of(`/tenant/${tenantId}`); // Initialize WhatsApp modules for this tenant const stateManager = new WhatsAppStateManager(tenantSessionPath); const qrHandler = new WhatsAppQRHandler(tenantNamespace, { maxQrGenerations: 3, qrTimeoutDuration: 60000 }); const mediaHandler = new WhatsAppMediaHandler({ uploadPath: tenantUploadPath, maxFileSize: 50 * 1024 * 1024 }); const whatsappConnection = new WhatsAppConnection( tenantNamespace, stateManager, qrHandler, { maxReconnectAttempts: 5 } ); // CRITICAL FIX: Pass main io object, not namespace const messageHandler = new WhatsAppMessageHandler( this.io, mediaHandler, { enableOpenAI: options.enableOpenAI || false, tenantId } ); // Create instance object const instance = { tenantId, tenant, connection: whatsappConnection, messageHandler, mediaHandler, qrHandler, stateManager, namespace: tenantNamespace, isConnected: false, createdAt: new Date() }; // Setup message handler const onMessageHandler = async (m) => { try { // Check usage limits before processing const withinLimits = await BillingService.checkUsageLimits(tenantId); if (!withinLimits) { logger.warn(`Tenant ${tenantId} exceeded usage limits`); tenantNamespace.emit('usage-limit-exceeded', { message: 'Monthly message limit exceeded' }); return; } const sock = whatsappConnection.getSocket(tenantId); const downloadMediaMessage = whatsappConnection.getDownloadMediaMessage(); console.log(`📞 [WhatsAppService] Calling messageHandler.handleMessage for tenant ${tenantId}`); await messageHandler.handleMessage(tenantId, m, sock, downloadMediaMessage); // Track usage await BillingService.trackMessageUsage(tenantId, 1); } catch (error) { logger.error(`Error handling message for tenant ${tenantId}:`, error); } }; // Initialize connection - PASS tenantId as first parameter await whatsappConnection.initialize(tenantId, { onMessage: onMessageHandler }); // Store instance this.tenantInstances.set(tenantId, instance); logger.info(`WhatsApp initialized for tenant ${tenantId}`); return instance; } catch (error) { logger.error(`Error initializing WhatsApp for tenant ${tenantId}:`, error); throw error; } } /** * Get WhatsApp instance for a tenant * @param {number} tenantId - Tenant ID * @returns {Object|null} WhatsApp instance */ getInstance(tenantId) { return this.tenantInstances.get(tenantId) || null; } /** * Send message for a tenant * @param {number} tenantId - Tenant ID * @param {string} phoneNumber - Recipient phone number * @param {string} messageText - Message text * @param {number} conversationId - Conversation ID (optional) * @returns {Promise<Object>} Send result */ async sendMessage(tenantId, phoneNumber, messageText, conversationId = null) { try { logger.info(`[WhatsAppService.sendMessage] Called`, { tenantId, phoneNumber, messageLength: messageText.length }); // Check usage limits const withinLimits = await BillingService.checkUsageLimits(tenantId); logger.info(`[WhatsAppService.sendMessage] Usage limits check`, { tenantId, withinLimits }); if (!withinLimits) { return { success: false, error: 'Monthly message limit exceeded' }; } const instance = this.getInstance(tenantId); logger.info(`[WhatsAppService.sendMessage] Instance check`, { tenantId, hasInstance: !!instance }); if (!instance) { return { success: false, error: 'WhatsApp not initialized for this tenant' }; } const sock = instance.connection.getSocket(tenantId); const isConnected = instance.connection.isConnected(tenantId); logger.info(`[WhatsAppService.sendMessage] Connection check`, { tenantId, hasSock: !!sock, isConnected, sockUser: sock?.user?.id, sockAuthState: sock?.authState?.creds?.me?.id }); if (!sock || !isConnected) { try { logger.info(`[WhatsAppService.sendMessage] Attempting reconnect`, { tenantId }); await instance.connection.reconnect(tenantId); const wait = async (ms) => new Promise(r => setTimeout(r, ms)); await wait(1500); } catch (reconnectError) { logger.warn(`[WhatsAppService.sendMessage] Reconnect attempt failed`, { tenantId, error: reconnectError.message }); } const sockAfter = instance.connection.getSocket(tenantId); const connectedAfter = instance.connection.isConnected(tenantId); if (!sockAfter || !connectedAfter) { return { success: false, error: 'WhatsApp not connected' }; } } // Anti-ban: strict per-contact rate limit and human-like jitter const local = phoneNumber.includes('@') ? phoneNumber.split('@')[0] : phoneNumber.replace(/^\+/, ''); const rateKey = `${tenantId}:${local}`; const now = Date.now(); const minIntervalMs = 4000; // min 4s between messages to same contact const windowMs = 60000; // 1 minute window const limitPerWindow = 15; // max 15 messages per minute to same contact const state = this.rateLimits.get(rateKey) || { lastSentAt: 0, windowStart: now, windowCount: 0 }; const inWindow = now - state.windowStart < windowMs; const countOk = inWindow ? state.windowCount < limitPerWindow : true; const intervalOk = now - state.lastSentAt >= minIntervalMs; if (!countOk || !intervalOk) { const retryAfterMs = intervalOk ? (state.windowStart + windowMs - now) : (minIntervalMs - (now - state.lastSentAt)); logger.warn(`[WhatsAppService.sendMessage] Rate limited`, { tenantId, local, retryAfterMs }); return { success: false, error: 'Rate limited. Retry later.' }; } // Update rate state pre-send to serialize multiple sends if (!inWindow) { state.windowStart = now; state.windowCount = 0; } state.lastSentAt = now; state.windowCount += 1; this.rateLimits.set(rateKey, state); // Human-like jitter const jitterMs = 800 + Math.floor(Math.random() * 1400); await new Promise(r => setTimeout(r, jitterMs)); // If phoneNumber already contains @, use it as JID directly (it's a remoteJid) // Otherwise, format it as a WhatsApp JID // CRITICAL FIX: Handle @lid format - WhatsApp may need @s.whatsapp.net for sending let jid; if (phoneNumber.includes('@')) { const local = phoneNumber.split('@')[0]; if (phoneNumber.includes('@lid')) { jid = `${local}@s.whatsapp.net`; } else { jid = phoneNumber; } logger.info(`[WhatsAppService.sendMessage] Using JID format`, { tenantId, originalPhone: phoneNumber, jid, isLid: phoneNumber.includes('@lid'), isWhatsappNet: phoneNumber.includes('@s.whatsapp.net') }); } else { const cleanPhone = phoneNumber.replace(/^\+/, ''); jid = `${cleanPhone}@s.whatsapp.net`; } logger.info(`[WhatsAppService.sendMessage] Sending to JID`, { tenantId, originalPhone: phoneNumber, jid, messageLength: messageText.length }); let sentMessageResult; try { // CRITICAL FIX: Try without timeout first to see if it completes logger.info(`[WhatsAppService.sendMessage] Calling sock.sendMessage...`, { tenantId, jid }); sentMessageResult = await sock.sendMessage(jid, { text: messageText }); logger.info(`[WhatsAppService.sendMessage] sock.sendMessage completed`, { tenantId, jid, result: sentMessageResult ? 'success' : 'no result', messageId: sentMessageResult?.key?.id }); } catch (sendError) { logger.error(`[WhatsAppService.sendMessage] sock.sendMessage failed`, { tenantId, jid, error: sendError.message, errorCode: sendError.code, stack: sendError.stack }); return { success: false, error: `Failed to send WhatsApp message: ${sendError.message}` }; } logger.info(`[WhatsAppService.sendMessage] Message sent successfully`, { tenantId, jid }); // Save outgoing message with WhatsApp message ID for edit/delete support if (conversationId) { await instance.messageHandler.saveOutgoingMessage( tenantId, phoneNumber.replace('@s.whatsapp.net', '').replace('@lid', ''), messageText, { messageType: 'text', conversationId: conversationId, whatsappMessageId: sentMessageResult?.key?.id || null } ); } // Track usage await BillingService.trackMessageUsage(tenantId, 1); logger.info(`Message sent for tenant ${tenantId} to ${phoneNumber}`); // CRITICAL FIX: Emit real-time update to tenant namespace const tenantNamespace = this.io.of(`/tenant/${tenantId}`); tenantNamespace.emit('message-sent', { conversationId: conversationId, phoneNumber: phoneNumber.replace('@s.whatsapp.net', '').replace('@lid', ''), message: messageText, timestamp: new Date() }); // Return success with WhatsApp message ID for edit/delete support return { success: true, whatsappMessageId: sentMessageResult?.key?.id || null }; } catch (error) { logger.error(`[WhatsAppService.sendMessage] Error sending message for tenant ${tenantId}:`, error); return { success: false, error: error.message }; } } /** * Send media message for a tenant * @param {number} tenantId - Tenant ID * @param {string} phoneNumber - Recipient phone number * @param {string} filePathOrUrl - Media file path or URL (can be /uploads/filename or full path) * @param {string} caption - Media caption * @param {number} conversationId - Conversation ID (optional) * @returns {Promise<Object>} Send result */ async sendMediaMessage(tenantId, phoneNumber, filePathOrUrl, caption = '', conversationId = null) { try { logger.info(`[sendMediaMessage] Starting for tenant ${tenantId}`, { phoneNumber, filePathOrUrl, caption }); // Check usage limits const withinLimits = await BillingService.checkUsageLimits(tenantId); if (!withinLimits) { return { success: false, error: 'Monthly message limit exceeded' }; } const instance = this.getInstance(tenantId); if (!instance) { return { success: false, error: 'WhatsApp not initialized for this tenant' }; } const sock = instance.connection.getSocket(tenantId); if (!sock || !instance.connection.isConnected(tenantId)) { return { success: false, error: 'WhatsApp not connected' }; } // Anti-ban: rate-limit and jitter for media too const local = phoneNumber.includes('@') ? phoneNumber.split('@')[0] : phoneNumber.replace(/^\+/, ''); const rateKey = `${tenantId}:${local}`; const now = Date.now(); const minIntervalMs = 5000; // stricter interval for media const windowMs = 60000; const limitPerWindow = 10; // lower limit for media const state = this.rateLimits.get(rateKey) || { lastSentAt: 0, windowStart: now, windowCount: 0 }; const inWindow = now - state.windowStart < windowMs; const countOk = inWindow ? state.windowCount < limitPerWindow : true; const intervalOk = now - state.lastSentAt >= minIntervalMs; if (!countOk || !intervalOk) { const retryAfterMs = intervalOk ? (state.windowStart + windowMs - now) : (minIntervalMs - (now - state.lastSentAt)); logger.warn(`[WhatsAppService.sendMediaMessage] Rate limited`, { tenantId, local, retryAfterMs }); return { success: false, error: 'Rate limited. Retry later.' }; } if (!inWindow) { state.windowStart = now; state.windowCount = 0; } state.lastSentAt = now; state.windowCount += 1; this.rateLimits.set(rateKey, state); const jitterMs = 1200 + Math.floor(Math.random() * 1800); await new Promise(r => setTimeout(r, jitterMs)); // CRITICAL FIX: Convert URL path to actual file path let actualFilePath = filePathOrUrl; // If it's a URL path like /uploads/filename, convert to actual file path if (filePathOrUrl.startsWith('/uploads/')) { actualFilePath = path.join(__dirname, '..', filePathOrUrl); logger.info(`[sendMediaMessage] Converted URL to path: ${actualFilePath}`); } else if (!path.isAbsolute(filePathOrUrl)) { // If it's a relative path, make it absolute from project root actualFilePath = path.join(__dirname, '..', filePathOrUrl); logger.info(`[sendMediaMessage] Made path absolute: ${actualFilePath}`); } // Check if file exists const fsSync = require('fs'); if (!fsSync.existsSync(actualFilePath)) { logger.error(`[sendMediaMessage] File not found: ${actualFilePath}`); return { success: false, error: `File not found: ${actualFilePath}` }; } const media = await instance.mediaHandler.uploadMedia(tenantId, actualFilePath); if (!media) { logger.error(`[sendMediaMessage] Error uploading media for tenant ${tenantId}`); return { success: false, error: 'Error uploading media' }; } const jid = phoneNumber.includes('@') ? phoneNumber : `${phoneNumber}@s.whatsapp.net`; // CRITICAL FIX: Build message with proper mimetype and filename for documents const message = {}; // Get original filename for documents const originalFilename = path.basename(actualFilePath); if (media.messageType === 'image') { message.image = media.buffer; message.mimetype = media.mimeType; if (caption) message.caption = caption; } else if (media.messageType === 'video') { message.video = media.buffer; message.mimetype = media.mimeType; if (caption) message.caption = caption; } else if (media.messageType === 'audio') { message.audio = media.buffer; message.mimetype = media.mimeType; // Voice note (ptt) for ogg, webm, or mp4 audio message.ptt = media.mimeType.includes('ogg') || media.mimeType.includes('webm') || media.mimeType.includes('opus'); } else { // Document - CRITICAL: Include mimetype and filename message.document = media.buffer; message.mimetype = media.mimeType; message.fileName = originalFilename; if (caption) message.caption = caption; } logger.info(`[sendMediaMessage] Sending ${media.messageType} with mimetype: ${media.mimeType}, filename: ${originalFilename}`); const sentMediaResult = await sock.sendMessage(jid, message); // Save outgoing message with WhatsApp message ID for edit/delete support if (conversationId) { await instance.messageHandler.saveOutgoingMessage( tenantId, phoneNumber.replace('@s.whatsapp.net', '').replace('@lid', ''), caption || '[Media]', { messageType: media.messageType, mediaUrl: filePathOrUrl, conversationId: conversationId, whatsappMessageId: sentMediaResult?.key?.id || null } ); } // Track usage await BillingService.trackMessageUsage(tenantId, 1); // Emit real-time update const tenantNamespace = this.io.of(`/tenant/${tenantId}`); tenantNamespace.emit('message-sent', { conversationId: conversationId, phoneNumber: phoneNumber.replace('@s.whatsapp.net', '').replace('@lid', ''), message: caption || '[Media]', mediaUrl: filePathOrUrl, mediaType: media.messageType, timestamp: new Date() }); logger.info(`Media message sent for tenant ${tenantId}`); // Return success with WhatsApp message ID for edit/delete support return { success: true, whatsappMessageId: sentMediaResult?.key?.id || null }; } catch (error) { logger.error(`Error sending media for tenant ${tenantId}:`, error); return { success: false, error: error.message }; } } /** * Get connection status for a tenant * @param {number} tenantId - Tenant ID * @returns {Object} Connection status */ getStatus(tenantId) { const instance = this.getInstance(tenantId); if (!instance) { return { connected: false, initialized: false, error: 'Not initialized' }; } const connStatus = instance.connection.getStatus(tenantId); const sessionInfo = instance.stateManager.getSessionInfo(tenantId); return { ...connStatus, session: sessionInfo, phoneNumber: this.getPhoneNumber(tenantId), initialized: true }; } /** * Get connected phone number for a tenant * @param {number} tenantId - Tenant ID * @returns {string|null} Phone number */ getPhoneNumber(tenantId) { try { const instance = this.getInstance(tenantId); if (!instance) return null; const sock = instance.connection.getSocket(tenantId); if (!sock || !instance.connection.isConnected(tenantId)) { return null; } const user = sock.user; return user?.id ? user.id.split(':')[0] : null; } catch (error) { return null; } } async getWebConversations(tenantId) { try { const normalizedTenantId = Number(tenantId); logger.info('Web conversations fetch start', { tenantId: normalizedTenantId }); let instance = this.getInstance(normalizedTenantId); if (!instance) { await this.initializeTenant(normalizedTenantId); instance = this.getInstance(normalizedTenantId); } else if (!instance.connection.isConnected(normalizedTenantId)) { await this.initializeTenant(normalizedTenantId); } if (!instance) { return []; } const waitFor = async (condition, timeoutMs, intervalMs) => { const start = Date.now(); while (Date.now() - start < timeoutMs) { if (await condition()) return true; await new Promise(resolve => setTimeout(resolve, intervalMs)); } return false; }; if (!instance.connection.isConnected(normalizedTenantId)) { await waitFor(() => instance.connection.isConnected(normalizedTenantId), 10000, 500); } let chats = await instance.connection.getChats(normalizedTenantId); if (!chats.length && instance.connection.isConnected(normalizedTenantId)) { await instance.connection.forceHistorySync(normalizedTenantId); await waitFor(async () => { const nextChats = await instance.connection.getChats(normalizedTenantId); if (nextChats.length) { chats = nextChats; return true; } return false; }, 30000, 1000); } if (!chats.length && instance.connection.isConnected(normalizedTenantId)) { await instance.connection.reconnect(normalizedTenantId); await waitFor(() => instance.connection.isConnected(normalizedTenantId), 15000, 500); await waitFor(async () => { const nextChats = await instance.connection.getChats(normalizedTenantId); if (nextChats.length) { chats = nextChats; return true; } return false; }, 20000, 1000); } logger.info('Web conversations fetch result', { tenantId: normalizedTenantId, connected: instance.connection.isConnected(normalizedTenantId), chatsCount: chats.length, storeStats: instance.connection.getStoreStats?.(normalizedTenantId) || null }); const filteredChats = chats.filter(chat => { const rawId = chat?.id?.id || chat?.id || chat?.jid || chat?.remoteJid || chat?.key?.remoteJid; if (!rawId) return false; const chatId = typeof rawId === 'string' ? rawId : String(rawId); return Boolean(chatId) && chatId.includes('@'); }); return filteredChats.map(chat => { const rawId = chat?.id?.id || chat?.id || chat?.jid || chat?.remoteJid || chat?.key?.remoteJid || ''; const chatId = typeof rawId === 'string' ? rawId : String(rawId); const displayName = chat?.name || chat?.pushName || chat?.subject || (chatId ? chatId.split('@')[0] : 'Unknown'); const phone = chatId ? chatId.split('@')[0] : ''; const lastMessageText = chat?.lastMessage?.message?.conversation || chat?.lastMessage?.message?.extendedTextMessage?.text || chat?.lastMessage?.message?.imageMessage?.caption || chat?.lastMessage?.message?.videoMessage?.caption || ''; const lastTimestamp = chat?.lastMessage?.messageTimestamp ? chat.lastMessage.messageTimestamp * 1000 : (chat?.conversationTimestamp ? chat.conversationTimestamp * 1000 : 0); return { id: chatId, name: displayName, phone, avatar: null, lastMessage: lastMessageText, timestamp: lastTimestamp, stageId: 'new', tags: [], unreadCount: chat?.unreadCount || 0, conversationId: chatId, source: 'whatsapp_web' }; }); } catch (error) { logger.error('Error fetching Web WhatsApp conversations for tenant', { tenantId, error: error.message }); return []; } } async forceWebSync(tenantId) { const normalizedTenantId = Number(tenantId); logger.info('Force web sync start', { tenantId: normalizedTenantId }); let instance = this.getInstance(normalizedTenantId); if (!instance) { await this.initializeTenant(normalizedTenantId); instance = this.getInstance(normalizedTenantId); } if (!instance) return false; await instance.connection.forceHistorySync(normalizedTenantId); let chats = await instance.connection.getChats(normalizedTenantId); if (!chats.length) { await instance.connection.reconnect(normalizedTenantId); const waitFor = async (condition, timeoutMs, intervalMs) => { const start = Date.now(); while (Date.now() - start < timeoutMs) { if (await condition()) return true; await new Promise(resolve => setTimeout(resolve, intervalMs)); } return false; }; await waitFor(() => instance.connection.isConnected(normalizedTenantId), 15000, 500); await waitFor(async () => { const nextChats = await instance.connection.getChats(normalizedTenantId); if (nextChats.length) { chats = nextChats; return true; } return false; }, 20000, 1000); } logger.info('Force web sync result', { tenantId: normalizedTenantId, connected: instance.connection.isConnected(normalizedTenantId), chatsCount: chats.length, storeStats: instance.connection.getStoreStats?.(normalizedTenantId) || null }); return true; } /** * Disconnect WhatsApp for a tenant * @param {number} tenantId - Tenant ID * @returns {Promise<boolean>} Success status */ async disconnect(tenantId) { try { const instance = this.getInstance(tenantId); if (!instance) { return false; } await instance.connection.disconnect(tenantId); // Remove instance this.tenantInstances.delete(tenantId); logger.info(`WhatsApp disconnected for tenant ${tenantId}`); return true; } catch (error) { logger.error(`Error disconnecting tenant ${tenantId}:`, error); return false; } } /** * Reconnect WhatsApp for a tenant * @param {number} tenantId - Tenant ID * @returns {Promise<boolean>} Success status */ async reconnect(tenantId) { try { const instance = this.getInstance(tenantId); if (!instance) { // Initialize if not exists await this.initializeTenant(tenantId); return true; } await instance.connection.reconnect(tenantId); logger.info(`WhatsApp reconnection initiated for tenant ${tenantId}`); return true; } catch (error) { logger.error(`Error reconnecting tenant ${tenantId}:`, error); return false; } } /** * Clear session for a tenant * @param {number} tenantId - Tenant ID * @returns {Promise<boolean>} Success status */ async clearSession(tenantId) { try { logger.info(`Clearing session for tenant ${tenantId}`); const instance = this.getInstance(tenantId); if (!instance) { logger.warn(`No instance found for tenant ${tenantId}`); return false; } // Disconnect first await instance.connection.disconnect(tenantId); // Backup before clearing instance.stateManager.backupSession(tenantId); // Clear session files const cleared = instance.stateManager.clearSession(tenantId); if (cleared) { instance.qrHandler.resetCounter(tenantId); instance.qrHandler.clearQR(tenantId); // Remove instance from map to force recreation this.tenantInstances.delete(tenantId); logger.info(`Session cleared and instance removed for tenant ${tenantId}`); return true; } return false; } catch (error) { logger.error(`Error clearing session for tenant ${tenantId}:`, error); return false; } } /** * Get QR code for a tenant * @param {number} tenantId - Tenant ID * @returns {string|null} QR code */ getQRCode(tenantId) { const instance = this.getInstance(tenantId); return instance ? instance.qrHandler.getCurrentQR(tenantId) : null; } /** * Get all active tenant instances * @returns {Array} List of active tenants */ getActiveTenants() { return Array.from(this.tenantInstances.keys()); } /** * Disconnect all tenants (for shutdown) * @returns {Promise<void>} */ async disconnectAll() { logger.info('Disconnecting all tenant WhatsApp instances'); const disconnectPromises = Array.from(this.tenantInstances.keys()).map( tenantId => this.disconnect(tenantId) ); await Promise.all(disconnectPromises); logger.info('All tenant instances disconnected'); } /** * Clean old media for a tenant * @param {number} tenantId - Tenant ID * @param {number} daysToKeep - Days to keep media * @returns {Promise<number>} Number of files cleaned */ async cleanOldMedia(tenantId, daysToKeep = 30) { try { const instance = this.getInstance(tenantId); if (!instance) { return 0; } const cleaned = instance.mediaHandler.cleanOldMedia(daysToKeep); logger.info(`Old media cleaned for tenant ${tenantId}:`, { cleaned }); return cleaned; } catch (error) { logger.error(`Error cleaning media for tenant ${tenantId}:`, error); return 0; } } /** * Clean old backups for a tenant * @param {number} tenantId - Tenant ID * @param {number} daysToKeep - Days to keep backups * @returns {Promise<number>} Number of backups cleaned */ async cleanOldBackups(tenantId, daysToKeep = 7) { try { const instance = this.getInstance(tenantId); if (!instance) { return 0; } const cleaned = instance.stateManager.cleanOldBackups(daysToKeep); logger.info(`Old backups cleaned for tenant ${tenantId}:`, { cleaned }); return cleaned; } catch (error) { logger.error(`Error cleaning backups for tenant ${tenantId}:`, error); return 0; } } /** * Get tenant status (wrapper for Controller) * @param {number} tenantId - Tenant ID * @returns {Promise<Object>} Status object */ async getTenantStatus(tenantId) { try { logger.info('Getting tenant status', { tenantId }); const status = this.getStatus(tenantId); logger.info('Status retrieved', { tenantId, status }); // Get QR code if connecting let qrCode = null; const instance = this.getInstance(tenantId); if (instance && instance.qrHandler) { qrCode = instance.qrHandler.getCurrentQR(tenantId); logger.info('QR code retrieved from handler', { tenantId, hasQR: !!qrCode, qrLength: qrCode ? qrCode.length : 0, qrPreview: qrCode ? qrCode.substring(0, 50) + '...' : null }); } else { logger.warn('No instance or qrHandler found', { tenantId, hasInstance: !!instance, hasQRHandler: instance ? !!instance.qrHandler : false }); } const result = { status: status.connected ? 'connected' : (status.initialized ? 'connecting' : 'disconnected'), phoneNumber: status.phoneNumber, qr: qrCode, ...status }; logger.info('Returning tenant status', { tenantId, statusValue: result.status, hasQR: !!result.qr, qrLength: result.qr ? result.qr.length : 0, connected: status.connected, initialized: status.initialized }); return result; } catch (error) { logger.error(`Error getting tenant status: ${error.message}`, { tenantId, stack: error.stack }); return { status: 'disconnected', error: error.message }; } } /** * Get current QR code for tenant * @param {number} tenantId - Tenant ID * @returns {Promise<string|null>} QR code data URL */ async getQRCode(tenantId) { try { const instance = this.getInstance(tenantId); if (!instance || !instance.qrHandler) { return null; } return instance.qrHandler.getCurrentQR(tenantId); } catch (error) { logger.error(`Error getting QR code: ${error.message}`, { tenantId }); return null; } } /** * Disconnect tenant (wrapper for Controller) * @param {number} tenantId - Tenant ID * @returns {Promise<boolean>} Success status */ async disconnectTenant(tenantId) { return await this.disconnect(tenantId); } /** * Clear tenant session (wrapper for Controller) * @param {number} tenantId - Tenant ID * @returns {Promise<boolean>} Success status */ async clearTenantSession(tenantId) { return await this.clearSession(tenantId); } /** * Get messages for tenant * @param {number} tenantId - Tenant ID * @param {Object} options - Query options * @returns {Promise<Object>} Messages data */ async getMessages(tenantId, options = {}) { try { const { limit = 50, offset = 0, phoneNumber } = options; const WhatsAppMessage = require('../models/WhatsAppMessage'); let query = ` SELECT * FROM whatsapp_messages WHERE tenant_id = ? `; const params = [tenantId]; if (phoneNumber) { query += ` AND phone_number = ?`; params.push(phoneNumber); } query += ` ORDER BY created_at DESC LIMIT ? OFFSET ?`; params.push(limit, offset); const [messages] = await pool.query(query, params); return { messages, total: messages.length, limit, offset }; } catch (error) { logger.error(`Error getting messages: ${error.message}`, { tenantId }); throw error; } } /** * Get contacts for tenant * @param {number} tenantId - Tenant ID * @param {Object} options - Query options * @returns {Promise<Object>} Contacts data */ async getContacts(tenantId, options = {}) { try { const { limit = 50, offset = 0, search } = options; const WhatsAppContact = require('../models/WhatsAppContact'); let query = ` SELECT * FROM whatsapp_contacts WHERE tenant_id = ? `; const params = [tenantId]; if (search) { query += ` AND (name LIKE ? OR phone_number LIKE ?)`; params.push(`%${search}%`, `%${search}%`); } query += ` ORDER BY last_message_at DESC LIMIT ? OFFSET ?`; params.push(limit, offset); const [contacts] = await pool.query(query, params); return { contacts, total: contacts.length, limit, offset }; } catch (error) { logger.error(`Error getting contacts: ${error.message}`, { tenantId }); throw error; } } /** * Restore all saved sessions on server startup * @returns {Promise<void>} */ async restoreAllSessions() { try { logger.info('🔄 Restoring saved WhatsApp sessions...'); // Get all active tenants (exclude system tenant id=0) const [tenants] = await pool.query( `SELECT id, name FROM tenants WHERE status = 'active' AND id != 0` ); logger.info(`Found ${tenants.length} active tenants`); let restored = 0; let skipped = 0; for (const tenant of tenants) { try { // Check if tenant has saved session const sessionPath = path.join(this.sessionsPath, `tenant_${tenant.id}`, 'creds.json'); const hasSession = await fs.access(sessionPath).then(() => true).catch(() => false); if (hasSession) { logger.info(`📁 Restoring session for tenant: ${tenant.name} (ID: ${tenant.id})`); // Initialize connection (will load saved session) await this.initializeTenant(tenant.id); restored++; // Small delay to avoid overwhelming the system await new Promise(resolve => setTimeout(resolve, 2000)); } else { logger.debug(`⏭️ No saved session for tenant: ${tenant.name} (ID: ${tenant.id})`); skipped++; } } catch (error) { logger.error(`❌ Failed to restore session for tenant ${tenant.id}:`, error.message); } } logger.info(`✅ Session restoration complete: ${restored} restored, ${skipped} skipped`); } catch (error) { logger.error('Error restoring sessions:', error); } } } // Singleton instance let whatsappServiceInstance = null; /** * Get WhatsApp service instance * @param {Object} io - Socket.IO instance * @returns {WhatsAppService} Service instance */ function getWhatsAppService(io) { if (!whatsappServiceInstance && io) { whatsappServiceInstance = new WhatsAppService(io); } return whatsappServiceInstance; } module.exports = { WhatsAppService, getWhatsAppService }; |