const { REST, Routes } = require('discord.js');
const config = require('./config.json');
const fs = require('fs');
const path = require('path');

const deployCommands = async () => {
  const commandsPath = path.join(__dirname, 'commands');
  const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));

  const commandsMap = new Map();
  for (const file of commandFiles) {
    const filePath = path.join(commandsPath, file);
    const command = require(filePath);
    if (!command.data || typeof command.data.toJSON !== 'function') {
      continue;
    }
    const name = command.data.name;
    if (commandsMap.has(name)) {
      continue;
    }
    commandsMap.set(name, command.data.toJSON());
  }

  const commands = Array.from(commandsMap.values());

  const rest = new REST({ version: '10' }).setToken(config.token);
  const guildId = '936783164402188329';

  try {
    console.log('🔍Obteniendo comandos de gremio existentes...');
    const existingCommands = await rest.get(Routes.applicationGuildCommands(config.clientId, guildId));

    const existingMap = new Map(existingCommands.map(cmd => [cmd.name, cmd]));

    const commandsToUpdateOrCreate = [];

    for (const command of commands) {
      const existing = existingMap.get(command.name);
      if (!existing) {
        commandsToUpdateOrCreate.push(command);
      } else {
        if (JSON.stringify(existing) !== JSON.stringify(command)) {
          commandsToUpdateOrCreate.push(command);
        } else {
          console.log(`✅ Command up-to-date, skipping: ${command.name}`);
        }
      }
    }

    if (commandsToUpdateOrCreate.length === 0) {
      return;
    }

    console.log('🔄 Registrando comandos nuevos y actualizados... Por favor espere');

    const finalCommandsMap = new Map();

    for (const cmd of commandsToUpdateOrCreate) {
      finalCommandsMap.set(cmd.name, cmd);
    }
    for (const existing of existingCommands) {
      if (!finalCommandsMap.has(existing.name)) {
        finalCommandsMap.set(existing.name, existing);
      }
    }

    const finalCommands = Array.from(finalCommandsMap.values());

    await rest.put(
      Routes.applicationGuildCommands(config.clientId, guildId),
      { body: finalCommands }
    );

    console.log('✅Comandos implementados exitosamente.');
  } catch (error) {
    console.error('❌ Command deployment failed:', error);
    throw error;
  }
};

module.exports = deployCommands;