import { Client, Collection, GatewayIntentBits } from 'discord.js';
import { createLogger } from './_src/logger.js';
import { initializePocketbase } from './_src/pocketbase.js';
import { loadModules } from './_src/loader.js';
import config from './config.js';
// For deprecated ephemeral option: convert to flags
import { ansi, wrapAnsi } from './_src/ansiColors.js';

// Initialize Discord client
const initializeClient = async (clientConfig) => {
	// Create Discord client with intents
   const client = new Client({
       // Include GuildMembers intent to allow fetching all guild members
       intents: [
           GatewayIntentBits.Guilds,
           GatewayIntentBits.GuildMessages,
           GatewayIntentBits.MessageContent,
           GatewayIntentBits.GuildMembers
       ]
   });

	// Attach config to client
	client.config = clientConfig;

	// Set up Winston logger
	client.logger = createLogger(clientConfig);
	client.logger.info(`Initializing client: ${clientConfig.id}`);

	// Set up Pocketbase
	client.pb = await initializePocketbase(clientConfig, client.logger);

  // Commands collection
  client.commands = new Collection();
  // ANSI helper attached to client
  client.ansi = ansi;
  client.wrapAnsi = wrapAnsi;

	// Load optional modules
	await loadModules(clientConfig, client);

	// TODO: If the logger level is debug, create event binds to raw and debug.

	// Discord client events
	client.on('interactionCreate', async (interaction) => {
		if (!interaction.isChatInputCommand()) return;


		const commandName = interaction.commandName;

		try {
			// Find command in collection
			const command = client.commands.get(commandName);

			if (!command) {
				client.logger.warn(`Command not found: ${commandName}`);
				await interaction.reply({
					content: 'Sorry, this command is not properly registered.',
					ephemeral: true
				});
				return;
			}

			// Execute the command
			client.logger.debug(`Executing command: ${commandName}`);
			await command.execute(interaction, client);

		} catch (error) {
			client.logger.error(`Error executing command ${commandName}: ${error.message}`);

			// Handle already replied interactions
			const replyContent = {
				content: 'There was an error while executing this command.',
				ephemeral: true
			};

			if (interaction.replied || interaction.deferred) {
				await interaction.followUp(replyContent).catch(err => {
					client.logger.error(`Failed to send followUp: ${err.message}`);
				});
			} else {
				await interaction.reply(replyContent).catch(err => {
					client.logger.error(`Failed to reply: ${err.message}`);
				});
			}
		}
	});

	client.on('ready', () => {
		client.logger.info(`Logged in as ${client.user.tag}`);
	});

	client.on('error', (error) => {
		client.logger.error(`Client error: ${error.message}`);
	});

	// Login to Discord
	try {
		await client.login(clientConfig.discord.token);
		return client;
	} catch (error) {
		client.logger.error(`Failed to login: ${error.message}`);
		throw error;
	}
};

// Main function to start bot
const startBot = async () => {
	const clients = [];

	// Initialize each client from config
	for (const clientConfig of config.clients) {
		try {
			const client = await initializeClient(clientConfig);
			clients.push(client);
		} catch (error) {
			console.error(`Failed to initialize client ${clientConfig.id}:`, error);
		}
	}

	return clients;
};

// Launch the bot
startBot().then(clients => {
  console.log(`[main] Successfully initialized ${clients.length} Discord clients`);
}).catch(error => {
  console.error(`[main] Failed to start bot: ${error.message}`);
  process.exit(1);
});