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

const token = process.env.DISCORD_BOT_TOKEN;
const clientId = process.env.DISCORD_CLIENT_ID;

if (!token) {
  console.error('Missing DISCORD_BOT_TOKEN');
  process.exit(1);
}

if (!clientId) {
  console.error('Missing DISCORD_CLIENT_ID');
  process.exit(1);
}

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

const commands = [];

for (const file of commandFiles) {
  const filePath = path.join(commandsPath, file);
  const command = require(filePath);
  if ('data' in command && 'execute' in command) {
    commands.push(command.data.toJSON());
    console.log(`Loaded command: ${command.data.name}`);
  }
}

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

(async () => {
  try {
    console.log(`\nFetching existing commands...`);
    
    const existingCommands = await rest.get(
      Routes.applicationCommands(clientId)
    );
    
    console.log(`Found ${existingCommands.length} existing commands`);
    
    const entryPointCommands = existingCommands.filter(cmd => cmd.type === 4);
    
    const allCommands = [...commands, ...entryPointCommands.map(cmd => ({
      name: cmd.name,
      description: cmd.description,
      type: cmd.type,
      handler: cmd.handler,
    }))];
    
    console.log(`Registering ${commands.length} commands (preserving ${entryPointCommands.length} entry points)...`);
    
    const data = await rest.put(
      Routes.applicationCommands(clientId),
      { body: allCommands }
    );
    
    console.log(`\nSuccessfully registered ${data.length} commands:`);
    data.forEach(cmd => console.log(`  - /${cmd.name}`));
  } catch (error) {
    if (error.code === 50240) {
      console.warn('\nEntry Point detected. Registering individually...');
      
      let successCount = 0;
      for (const command of commands) {
        try {
          await rest.post(
            Routes.applicationCommands(clientId),
            { body: command }
          );
          console.log(`  + /${command.name}`);
          successCount++;
        } catch (postError) {
          if (postError.code === 50045) {
            console.log(`  ~ /${command.name} (already exists)`);
          } else {
            console.error(`  x /${command.name}: ${postError.message}`);
          }
        }
      }
      console.log(`\nRegistered ${successCount} commands individually.`);
    } else {
      console.error('Error registering commands:', error);
    }
  }
})();