// states/HandleChat.js
const path = require('path');
const fs = require('fs');
const { getLastChat, getBot, getDB, setActiveTask, clearActiveTask } = require('../core/context');
const { logChatMessage } = require('../memory/chat');
const { chatWithAI, generateAndSaveTask } = require('../lib/ai-helper');
const config = require('../config.json');

module.exports = async function HandleChat() {
  const bot = getBot();
  const db = getDB();
  const { username, message } = getLastChat();
  const msg = message.toLowerCase();

  console.log(`[STATE] HandleChat: ${message}`);
  logChatMessage(db, username, message);

  const taskDir = path.join(__dirname, '../bot-tasks');
  const availableTasks = fs.readdirSync(taskDir)
    .filter(f => f.endsWith('.js'))
    .map(f => f.replace('.js', ''));

  const matchedTask = availableTasks.find(task => msg.includes(task.replace(/-/g, ' ')));

  if (matchedTask) {
    try {
      const task = require(path.join(taskDir, matchedTask));
      setActiveTask(matchedTask);
      bot.chat(`Okay, I’ll try to ${matchedTask.replace(/-/g, ' ')}.`);
      await task(bot, db, bot.chat);
      clearActiveTask();
      return;
    } catch (err) {
      console.error(`[TASK ERROR] ${matchedTask}:`, err.message);
      bot.chat(`I couldn't complete the task "${matchedTask}".`);
      clearActiveTask();
      return;
    }
  }

  const prompt = `Player said: "${message}". What task name should I execute (like 'find-flower', 'move-items')? Reply only with the task name or "none".`;
  const aiResponse = await chatWithAI(prompt, config.ai);
  const aiTask = aiResponse.trim().toLowerCase().replace(/\s+/g, '-');

  if (aiTask !== 'none') {
    const taskPath = path.join(taskDir, `${aiTask}.js`);

    if (!fs.existsSync(taskPath)) {
      bot.chat(`I don’t know how to ${aiTask.replace(/-/g, ' ')} yet, learning now...`);
      await generateAndSaveTask(aiTask, config.ai);
    }

    try {
      const task = require(taskPath);
      setActiveTask(aiTask);
      await task(bot, db, bot.chat);
      clearActiveTask();
      return;
    } catch (err) {
      console.error(`[TASK ERROR - AI GENERATED] ${aiTask}:`, err.message);
      bot.chat(`I tried to learn how to ${aiTask.replace(/-/g, ' ')}, but it didn’t work.`);
      clearActiveTask();
      return;
    }
  }

  if (msg.includes(bot.username.toLowerCase())) {
    const response = await chatWithAI(message, config.ai);
    bot.chat(response);
  }
};