const express = require('express');
const qrcode = require('qrcode');
const path = require('path');
const fs = require('fs');
const NodeCache = require('node-cache');
const mime = require('mime-types');
const fetch = require('node-fetch'); // en haut si pas encore ajouté


const {
  default: makeWASocket,
  useMultiFileAuthState,
  DisconnectReason,
  fetchLatestBaileysVersion,
  proto,
  generateWAMessageFromContent,
  prepareWAMessageMedia,
  generateWAMessageContent
} = require('@fizzxydev/baileys-pro');

const app = express();
const http = require('http');
const WebSocket = require('ws');

const server = http.createServer(app);
const wss = new WebSocket.Server({ server });

function broadcastToClients(data) {
  const message = JSON.stringify(data);
  wss.clients.forEach(client => {
    if (client.readyState === WebSocket.OPEN) {
      client.send(message);
    }
  });
}
app.use(express.json());
app.use(express.static('public'));

let sock;
let qrData = null;
let isConnected = false;

// 💾 Group Metadata Cache (5 minutes)
const groupCache = new NodeCache({ stdTTL: 300, useClones: false });

// Simule une récupération de message depuis un store pour getMessage
async function getMessageFromStore(key) {
  // À adapter selon ta logique réelle
  return { conversation: "Message temporaire pour retry" };
}
app.post('/webhook/status', (req, res) => {
  console.log('📩 Webhook reçu :', req.body);
  res.sendStatus(200);
});


const initBaileys = async () => {
  const { version } = await fetchLatestBaileysVersion();
  const { state, saveCreds } = await useMultiFileAuthState('auth');

  sock = makeWASocket({
    version,
    auth: state,
    markOnlineOnConnect: false,
    getMessage: async (key) => await getMessageFromStore(key),
    cachedGroupMetadata: async (jid) => groupCache.get(jid)
  });

  sock.ev.on('connection.update', async ({ connection, lastDisconnect, qr }) => {
    if (qr) {
      qrData = await qrcode.toDataURL(qr);
      isConnected = false;
    }

    if (connection === 'close') {
      const shouldReconnect = lastDisconnect?.error?.output?.statusCode !== DisconnectReason.loggedOut;
      console.log(shouldReconnect ? '🔁 Reconnexion...' : '❌ Déconnecté.');
      if (shouldReconnect) initBaileys();
    } else if (connection === 'open') {
      console.log('✅ Connecté à WhatsApp');
      isConnected = true;
    }
  });

  sock.ev.on('creds.update', saveCreds);

  // 📌 Caching des groupes
  sock.ev.on('groups.update', async ([event]) => {
    const metadata = await sock.groupMetadata(event.id);
    groupCache.set(event.id, metadata);
  });

  sock.ev.on('group-participants.update', async (event) => {
    const metadata = await sock.groupMetadata(event.id);
    groupCache.set(event.id, metadata);
  });

  // (Facultatif) Gestion des messages reçus
  sock.ev.on('messages.upsert', async ({ messages }) => {
    const msg = messages[0];

    if (!msg.key.fromMe && msg.message?.conversation) {
      console.log('💬 Message reçu de', msg.key.remoteJid, ':', msg.message.conversation);
    }
    if (!msg.message || !msg.key.fromMe) {
      const jid = msg.key.remoteJid;
      const buttonId = msg.message.buttonsResponseMessage?.selectedButtonId;
  
      if (buttonId === 'doc_1') {
        await sock.sendMessage(jid, {
          document: {
            url: 'https://merlo-ch.com/uploads/proposition/f_p_250505_0000136_00008_EB00001909.pdf',
          },
          mimetype: 'application/pdf',
          fileName: 'Document_1.pdf',
          caption: 'Voici votre *Document 1* 📄',
          footer: '© Fizzxy Dev',
        });
      } else if (buttonId === 'doc_2') {
        await sock.sendMessage(jid, {
          document: {
            url: 'https://merlo-ch.com/uploads/proposition/d_p_250505_0000136_00008_EB00001909.pdf',
          },
          mimetype: 'application/pdf',
          fileName: 'Document_2.pdf',
          caption: 'Voici votre *Document 2* 📄',
          footer: '© Fizzxy Dev',
        });
      }
    }
  });
  sock.ev.on('messages.update', async (updates) => {
    broadcastToClients({
      messageId,
      status,
      jid
    });
  });
};

initBaileys();


app.use('/static', express.static(path.join(__dirname, 'public')));

app.get('/login', (req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'login.html'));
});

app.get('/api/qrcode', (req, res) => {
  res.json({ qr: qrData, connected: isConnected });
});

app.post('/sendText', async (req, res) => {
  const { phone, message } = req.body;
  if (!sock || !isConnected) return res.status(400).json({ error: 'Non connecté' });
  try {
    await sock.sendMessage(`${phone}@s.whatsapp.net`, { text: message });
    res.json({ success: true });
  } catch (e) {
    res.status(500).json({ error: e.message });
  }
});
app.post('/testButtons', async (req, res) => {
  const { phone } = req.body;

  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté' });
  }

  const jid = `${phone}@s.whatsapp.net`;

  try {
    await sock.sendMessage(jid, {
      image: { url : "https://wa.canguidev.fr/static/logo-merlo-cs-FR.jpg" }, // Can buffer
      text: "Hello Wolrd !;",
      caption: "Description Of Messages", //Additional information
      footer: "© Fizzxy Dev",
      media:true,
      image: {
        url: 'https://wa.canguidev.fr/static/logo-merlo-cs-FR.jpg'
      },
      buttons: [
        {
          buttonId: '.tes',
          buttonText: {
            displayText: 'TESTING BOT'
          },
          type: 1
        },
        {
          buttonId: ' ',
          buttonText: {
            displayText: 'PRIVATE SCRIPT'
          },
          type: 1
        },
        {
          buttonId: 'action',
          buttonText: {
            displayText: 'ini pesan interactiveMeta'
          },
          type: 4,
          nativeFlowInfo: {
            name: 'single_select',
            paramsJson: JSON.stringify({
              title: 'message',
              sections: [
                {
                  title: 'FizzxyDev - 2025',
                  highlight_label: '😜',
                  rows: [
                    {
                      header: 'HEADER',
                      title: 'TITLE',
                      description: 'DESCRIPTION',
                      id: 'YOUR ID 1'
                    },
                    {
                      header: 'HEADER',
                      title: 'TITLE',
                      description: 'DESCRIPTION',
                      id: 'YOUR ID 2'
                    }
                  ]
                }
              ]
            })
          }
        }
      ],
      headerType: 1,
      viewOnce: true
    }, {
      quoted: null // ou tu peux injecter un msg pour reply ici
    });

    res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur testButtons :', e);
    res.status(500).json({ error: e.message });
  }
});

app.post('/sendButtons', async (req, res) => {
  const { phone } = req.body;

  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté' });
  }

  const BASE_URL = process.env.BASE_URL || 'https://wa.canguidev.fr';
  const imageUrl = `${BASE_URL}/static/logo-merlo-cs-FR.jpg`;
  const jid = `${phone}@s.whatsapp.net`;

  try {
    const content = {
      viewOnceMessage: {
        message: {
          messageContextInfo: {
            deviceListMetadata: {},
            deviceListMetadataVersion: 2
          },
          interactiveMessage: proto.Message.InteractiveMessage.create({
            body: { text: "Bienvenue sur notre service !" },
            footer: { text: "Choisis une action ci-dessous" },
            header: {
              hasMediaAttachment: true,
              imageMessage: { url: imageUrl }
            },
            nativeFlowMessage: {
              buttons: [
                {
                  name: "cta_reply",
                  buttonParamsJson: JSON.stringify({
                    display_text: "📩 Contacter support",
                    id: "support_action"
                  })
                },
                {
                  name: "cta_url",
                  buttonParamsJson: JSON.stringify({
                    display_text: "🌐 Voir notre site",
                    url: "https://canguidev.fr"
                  })
                },
                {
                  name: "cta_call",
                  buttonParamsJson: JSON.stringify({
                    display_text: "📞 Appeler le support",
                    id: "+33612345678"
                  })
                }
              ]
            }
          })
        }
      }
    };

    const msg = generateWAMessageFromContent(jid, content, {});
    await sock.relayMessage(jid, msg.message, { messageId: msg.key.id });

    res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur bouton actif :', e);
    res.status(500).json({ error: e.message });
  }
});


// Votre route POST
app.post('/sendInteractiveImage', async (req, res) => {
  const { phone, caption, title, subtitle, footer } = req.body;
  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté à WhatsApp' });
  }

  try {
    const BASE_URL = process.env.BASE_URL || 'https://wa.canguidev.fr';
    const imageUrl = `${BASE_URL}/static/logo-merlo-cs-FR.jpg`;

    // Construire le Header correct
    const header = proto.Message.InteractiveMessage.create({
      // ici on injecte l'image dans le header sans besoin de type explicite
      header: proto.Message.InteractiveMessage.Header.create({
        title:       'Igna',
        subtitle:    'test'
      }),
    })
    // Body et Footer
    const body = proto.Message.InteractiveMessage.Body.create({
      text: caption || 'Description par défaut'
    });
    const foot = proto.Message.InteractiveMessage.Footer.create({
      text: footer  || 'Pied de page'
    });

    // Vos boutons URL
    const nativeFlow = proto.Message.InteractiveMessage.NativeFlowMessage.create({
      buttons: [
        {
          name: 'cta_url',
          buttonParamsJson: JSON.stringify({
            display_text: '📄 Voir proposition',
            url:          'https://merlo-ch.com/uploads/proposition/f_p_250505_0000136_00008_EB00001909.pdf'
          })
        },
        {
          name: 'cta_url',
          buttonParamsJson: JSON.stringify({
            display_text: '🔧 Spécifications',
            url:          'https://merlo-ch.com/uploads/proposition/d_p_250505_0000136_00008_EB00001909.pdf'
          })
        }
      ]
    });

    // Construire l'InteractiveMessage complet
    const interactiveMsg = proto.Message.InteractiveMessage.create({
      header,
      body,
      footer: foot,
      nativeFlowMessage: nativeFlow
    });

    // Envelopper (ici dans viewOnceMessage, comme dans votre exemple)
    const raw = {
      viewOnceMessage: {
        message: {
          messageContextInfo: {
            deviceListMetadata: {},
            deviceListMetadataVersion: 2
          },
          interactiveMessage: interactiveMsg
        }
      }
    };

    // Générer et relayer
    const jid = `${phone}@s.whatsapp.net`;
    const msg = generateWAMessageFromContent(jid, raw, {});
    await sock.relayMessage(jid, msg.message, { messageId: msg.key.id });

    return res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur /sendInteractiveImage :', e);
    return res.status(500).json({ error: e.message });
  }
});

app.post('/sendInteractiveImage2', async (req, res) => {
  const { phone, caption, title, subtitle, footer } = req.body;
  if (!sock || !isConnected) return res.status(400).json({ error: 'Non connecté' });

  try {
    const imagePath = path.join(__dirname, 'public', 'logo-merlo-cs-FR.jpg');
    const resizedBuffer = fs.readFileSync(imagePath);

    await sock.sendMessage(`${phone}@s.whatsapp.net`, {
      image: resizedBuffer,
      caption: caption || 'Description par défaut',
      title: title || 'Titre par défaut',
      subtitle: subtitle || 'Sous-titre',
      footer: footer || 'Pied de page',
      media: true,
      interactiveButtons: [
        {
          name: 'cta_url',
          buttonParamsJson: JSON.stringify({
            display_text: 'Proposition',
            url: 'https://merlo-ch.com/uploads/proposition/f_p_250505_0000136_00008_EB00001909.pdf'
          })
        },
        {
          name: 'cta_url',
          buttonParamsJson: JSON.stringify({
            display_text: 'Spec machine',
            url: 'https://merlo-ch.com/uploads/proposition/d_p_250505_0000136_00008_EB00001909.pdf'
          })
        }
      ]
    });
    res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur interactive image :', e);
    res.status(500).json({ error: e.message });
  }
});
app.post('/sendProductMessage', async (req, res) => {
  // On vérifie sock et isConnected, pas client
  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté à WhatsApp' });
  }

  const {
    phone,
    productImageUrl,
    productImageCount,
    productTitle,
    productDescription,
    priceAmount1000,
    currencyCode,
    retailerId,
    productUrl,
    businessOwnerJid,
    caption,
    messageTitle,
    footer,
    interactiveButtons = [],
    quoted
  } = req.body;

  try {
    const jid = `${phone}@s.whatsapp.net`;

    await sock.sendMessage(
      jid,
      {
        product: {
          productImage: { url: productImageUrl },
          productImageCount,
          title: productTitle,
          description: productDescription,
          priceAmount1000,
          currencyCode,
          retailerId,
          url: productUrl,
        },
        businessOwnerJid,
        caption,
        title: messageTitle,
        footer,
        media: true,
        interactiveButtons
      },
      quoted ? { quoted } : {}
    );
    

    return res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur /sendProductMessage :', e);
    return res.status(500).json({ error: e.message });
  }
});
app.post('/testViewOnce', async (req, res) => {
  const { phone } = req.body;

  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté' });
  }

  const jid = `${phone}@s.whatsapp.net`;

  try {
    await sock.sendMessage(jid, {
      image: {
        url: 'https://wa.canguidev.fr/static/logo-merlo-cs-FR.jpg' // Ton image publique
      },
      viewOnce: true,
      caption: 'Voici une image à affichage unique 📷'
    });

    res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur testViewOnce :', e);
    res.status(500).json({ error: e.message });
  }
});


app.post('/testHeaderImage', async (req, res) => {
  const { phone } = req.body;

  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté' });
  }

  const jid = `${phone}@s.whatsapp.net`;

  try {
    // 1. Charger l'image locale
    const imagePath = path.join(__dirname, 'public/logo-merlo-cs-FR.jpg');
    const imageBuffer = fs.readFileSync(imagePath);


    const generate = async (type, url) => {
      const generated = await generateWAMessageContent({
          [type]: { url }
      }, {
          upload: sock.waUploadToServer
      })
      return generated[`${type}Message`]
  }
    // 3. Créer le message interactif avec image dans le header

    const msg = generateWAMessageFromContent(jid.remoteJid, {
      viewOnceMessage: {
          message: {
              messageContextInfo: {
                  deviceListMetadata: {},
                  deviceListMetadataVersion: 2
              },
              interactiveMessage: proto.Message.InteractiveMessage.create({
                  body: proto.Message.InteractiveMessage.Body.create({
                      text: "body text (optional)"
                  }),
                  footer: proto.Message.InteractiveMessage.Footer.create({
                      text: "footer text (optional)"
                  }),
                  header: proto.Message.InteractiveMessage.Header.create({
                      title: "some title",
                      hasMediaAttachment: false, // false if you don't want to send media with it
                      //imageMessage: generate("image", "https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/TEIDE.JPG/500px-TEIDE.JPG"),
                      //videoMessage: generate("video", "url/path to video"), // if it's an video
                  }),
                  nativeFlowMessage: proto.Message.InteractiveMessage.NativeFlowMessage.create({
                      buttons: [{
                          name: "quick_reply",
                          buttonParamsJson: JSON.stringify({
                              display_text: "button 1", // <-- displayed text
                              id: ".menu" // <-- this is the id or you may call it command 🤷‍♂️
                          }) // REMEMBER TO USE "JSON.stringify()" BECAUSE "buttonParamsJson" ONLY ACCEPTING STIRNG JSON, NOT AN OBJECT
                      },{
                          name: "cta_url",
                          buttonParamsJson: JSON.stringify({
                              display_text: "subscribe my Youtube!",
                              url: "https://youtube.com/@fannmods",
                              merchant_url: "https://youtube.com"
                          })
                      }]
                  })
              })
          }
      }
  }, {})
    console.log(msg.message)
    // 4. Envoyer le message
    await sock.relayMessage(jid, msg.message, { messageId: msg.key.id });

    res.json({ success: true });
  } catch (e) {
    console.error('❌ Erreur testHeaderImage :', e);
    res.status(500).json({ error: e.message });
  }
});

const express = require('express');
const app = express();
app.use(express.json());

app.post('/sendImageWithBaileysPro', async (req, res) => {
  if (!sock || !isConnected) {
    return res.status(400).json({ error: 'Non connecté à WhatsApp' });
  }

  const {
    phone,             // ex: "33612345678"
    imageUrl,          // ex: "https://example.com/image.jpg"
    caption,           // ex: "Voici une image !"
    quoted             // optionnel : message auquel répondre
  } = req.body;

  if (!phone || !imageUrl) {
    return res.status(400).json({ error: 'Paramètres requis manquants (phone, imageUrl)' });
  }

  const jid = `${phone}@s.whatsapp.net`;

  try {
    await sock.sendMessage(
      jid,
      {
        image: { url: imageUrl },
        caption: caption || '',
      },
      quoted ? { quoted } : {}
    );

    res.json({ success: true, to: jid });
  } catch (e) {
    console.error('❌ Erreur /sendImageWithBaileysPro :', e);
    res.status(500).json({ error: e.message });
  }
});



// 5) 404 et gestion des erreurs
app.use((req, res) => res.status(404).json({ error: 'Ressource introuvable' }));
app.use((err, req, res, next) => {
  console.error('Middleware d’erreur :', err);
  res.status(500).json({ error: err.message });
});
app.listen(3001, () => console.log('🚀 Serveur Baileys démarré sur http://localhost:3001'));