const { Events } = require('discord.js')
const path = require('path');
const fs = require('fs');

/** @param { import('discord.js').Client } client */

function loadSlashCommands(client) {
    const cmdPath = path.join(__dirname, '..', '..', 'commands');
    const cmdFiles = fs.readdirSync(cmdPath).filter(file => file.endsWith('.js'));

    for (const file of cmdFiles) {

        const filePath = path.join(cmdPath, file);
        const cmd = require(filePath);

        if ('data' in cmd && 'execute' in cmd && cmd.type === 'slash') {
            client.commands.set(cmd.data.name, cmd);
        } else {
            console.log(`[WARNING] The command at ${filePath} is missing a required "data", "execute" or "type" property.`);
        }
    }

    //! commands testing
    const cmdTestPath = path.join(__dirname, '..', '..', 'commands-testing');
    const cmdTestFiles = fs.readdirSync(cmdTestPath).filter(file => file.endsWith('.js'));

    for (const file of cmdTestFiles) {

        const filePath = path.join(cmdTestPath, file);
        const cmd = require(filePath);

        if ('data' in cmd && 'execute' in cmd && cmd.type === 'slash') {
            client.commands.set(cmd.data.name, cmd);
        } else {
            console.log(`[WARNING] The command at ${filePath} is missing a required "data", "execute" or "type" property.`);
        }
    }

    //! command handler
    client.on(Events.InteractionCreate, async interaction => {
        if (!interaction.isChatInputCommand())
            return;

        const command = interaction.client.commands.get(interaction.commandName);

        if (!command) {
            console.error(`No command matching ${interaction.commandName} was found.`);
            return;
        }

        try {
            await command.execute(interaction);
        } catch (error) {
            console.error(error);
            await interaction.reply({
                content: 'There was an error while executing this command!',
                ephemeral: true
            })
        }
    })
}

module.exports = { loadSlashCommands }