// QwenClaw Telegram Bot - Full Integration
// Listens to Telegram and processes messages through QwenClaw

const TELEGRAM_BOT_TOKEN = process.env.TELEGRAM_BOT_TOKEN || '7975505515:AAHqNCZuFmD3MPJyUSAg81TysQ65K6HuY2s';
const QWENCLAW_PATH = 'C:\\Users\\admin\\qwenclaw\\bin\\qwenclaw.js';

async function getUpdates(offset = 0) {
  const url = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/getUpdates?offset=${offset}&timeout=30`;
  const response = await fetch(url);
  return await response.json();
}

async function sendMessage(chatId, text, parseMode = 'Markdown') {
  const url = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage`;
  const response = await fetch(url, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      chat_id: chatId,
      text: text,
      parse_mode: parseMode
    })
  });
  return await response.json();
}

async function sendTyping(chatId) {
  const url = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendChatAction`;
  await fetch(url, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      chat_id: chatId,
      action: 'typing'
    })
  });
}

async function executeQwenClaw(message) {
  const { exec } = require('child_process');
  const util = require('util');
  const execPromise = util.promisify(exec);
  
  try {
    const command = `node "${QWENCLAW_PATH}" send "${message.replace(/"/g, '\\"')}"`;
    const { stdout, stderr } = await execPromise(command, { 
      timeout: 120000,
      maxBuffer: 1024 * 1024 * 5
    });
    
    return {
      success: true,
      output: stdout || stderr || 'Task completed'
    };
  } catch (error) {
    return {
      success: true,
      output: error.stdout || error.message || 'Task sent to QwenClaw'
    };
  }
}

async function handleCommand(chatId, command) {
  console.log(`Command: ${command}`);
  
  switch(command) {
    case '/start':
      await sendMessage(chatId, `
👋 *Welcome to QwenClaw Bot!*

I'm your AI assistant powered by QwenClaw with 152+ skills.

*What I can do:*
• Answer questions
• Write code
• Review files
• Automate tasks
• Research topics
• And much more!

*Commands:*
/status - Check daemon status
/skills - List skills
/help - Show help

*Just send any message* and I'll process it!
      `);
      break;
      
    case '/status':
      const { exec } = require('child_process');
      const util = require('util');
      const execPromise = util.promisify(exec);
      
      try {
        const { stdout } = await execPromise(`node "${QWENCLAW_PATH}" status`);
        await sendMessage(chatId, `
🐾 *QwenClaw Status*
━━━━━━━━━━━━━━━━━━━━
\`\`\`
${stdout}
\`\`\`
        `, null);
      } catch (error) {
        await sendMessage(chatId, '❌ Error getting status: ' + error.message);
      }
      break;
      
    case '/skills':
      try {
        const { stdout } = await execPromise(`node "${QWENCLAW_PATH}" skills`);
        await sendMessage(chatId, `
📚 *Available Skills*
━━━━━━━━━━━━━━━━━━━━
\`\`\`
${stdout}
\`\`\`
        `, null);
      } catch (error) {
        await sendMessage(chatId, '❌ Error listing skills: ' + error.message);
      }
      break;
      
    case '/help':
      await sendMessage(chatId, `
❓ *Help - QwenClaw Bot*

*How to use:*
Just send me any message and I'll process it through QwenClaw AI!

*Examples:*
• "Write a Python function to sort a list"
• "Review my latest code changes"
• "Summarize this article: [URL]"
• "Create a todo list for my project"
• "Explain quantum computing"

*Commands:*
/start - Welcome message
/status - Check daemon status
/skills - List available skills  
/help - This help message

*Powered by QwenClaw v2.0*
152+ skills | Always-on daemon
      `);
      break;
      
    default:
      await sendMessage(chatId, `❓ Unknown command. Send /help for available commands.`);
  }
}

async function processMessage(chatId, text, messageId) {
  console.log(`Processing: ${text}`);
  
  // Show typing indicator
  await sendTyping(chatId);
  
  // Send acknowledgment
  const ackMsg = await sendMessage(chatId, `
🤖 *Processing your request...*

\`${text}\`

⏳ One moment please...
  `);
  
  // Execute QwenClaw
  const result = await executeQwenClaw(text);
  
  // Delete acknowledgment
  try {
    const deleteUrl = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/deleteMessage`;
    await fetch(deleteUrl, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        chat_id: chatId,
        message_id: ackMsg.result.message_id
      })
    });
  } catch (e) {
    // Ignore delete errors
  }
  
  // Send response (truncate if too long)
  let response = result.output;
  if (response.length > 4000) {
    response = response.substring(0, 3900) + '\n\n... (truncated)';
  }
  
  await sendMessage(chatId, `
✅ *QwenClaw Response:*
━━━━━━━━━━━━━━━━━━━━
${response}
  `, null);
}

async function main() {
  console.log('🤖 QwenClaw Telegram Bot starting...');
  console.log(`Bot: @QwenClaw_X_Bot`);
  console.log(`Token: ${TELEGRAM_BOT_TOKEN.substring(0, 15)}...`);
  console.log('Listening for messages...\n');
  
  let offset = 0;
  
  while (true) {
    try {
      const data = await getUpdates(offset);
      
      if (data.ok && data.result.length > 0) {
        for (const update of data.result) {
          offset = update.update_id + 1;
          
          if (update.message) {
            const chatId = update.message.chat.id;
            const text = update.message.text;
            const messageId = update.message.message_id;
            
            console.log(`[${new Date().toISOString()}] From ${chatId}: ${text}`);
            
            if (text.startsWith('/')) {
              await handleCommand(chatId, text);
            } else {
              await processMessage(chatId, text, messageId);
            }
          }
        }
      }
    } catch (error) {
      console.error('Error:', error.message);
      await new Promise(resolve => setTimeout(resolve, 5000));
    }
  }
}

main();