/*
*  Konpeki Discord Bot - Slash Command Configuration File
*  deploy-commands.js - Gathers all current .js files in the commands folder and publishes a list to Discord
*
*  Code modified based on example from the discord.js guides
*/

const { REST, Routes } = require('discord.js');
const { clientId, token } = require('./config.json');
const fs = require('node:fs');

const commands = [];
const commandsHelp = [];

// Grab all the command files from the commands directory you created earlier
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));

// Grab the SlashCommandBuilder#toJSON() output of each command's data for deployment
for (const file of commandFiles) {
    const command = require(`./commands/${file}`);
    commands.push(command.data.toJSON());
    commandsHelp.push(command.data);
}

// Construct and prepare an instance of the REST module
const rest = new REST({ version: '10' }).setToken(token);

// Generate help-text.json
try {
    console.log(`Generating ${commands.length} help text entries.`);

    let helpJSONString = '{\n';

    for (let i = 0; i < commandsHelp.length; i++) {
        helpJSONString += `	"${commandsHelp[i].name}": {\n`;
        helpJSONString += `    	"description": "${commandsHelp[i].description}",\n`;
        helpJSONString += '    	"options": {\n';

        for (let j = 0; j < commandsHelp[i].options.length; j++) {

            helpJSONString += `		"${commandsHelp[i].options[j].name}": {\n`;
            helpJSONString += `			"description": "${commandsHelp[i].options[j].description}",\n`;
            helpJSONString += `			"required": "${commandsHelp[i].options[j].required}",\n`;
            helpJSONString += '    		"choices": {\n';

            if (typeof commandsHelp[i].options[j].choices !== 'undefined') {
                for (let k = 0; k < commandsHelp[i].options[j].choices.length; k++) {

                    helpJSONString += `				"${commandsHelp[i].options[j].choices[k].name}": {\n`;
                    helpJSONString += `					"value": "${commandsHelp[i].options[j].choices[k].value}",\n`;
                    helpJSONString += '    	},\n';

                }
            }

            helpJSONString += '    	},\n';
            helpJSONString += '    	},\n';

        }

        helpJSONString += '	},\n';
        helpJSONString += '	},\n';
    }

    helpJSONString += '}';

    // Lazy way out of removing trailing commas
    // See https://stackoverflow.com/a/34347475
    const helpJSON = JSON.stringify(JSON.parse(helpJSONString.replace(/,(?!\s*?[{["'\w])/g, '')), null, 4);

    // Create data folder if it doesn't exist
    if (!fs.existsSync('data')) {
        fs.mkdirSync('data');
    }

    // Write file to disk
    fs.writeFile('./data/help-text.json', helpJSON, err => {
        if (err) {
            console.log(`Unable to write help-text.json: ${err}`);
            console.log('Stopping...');
            return;
        }
    });

    console.log(`Successfully generated ${commandsHelp.length} help text entries.`);

    console.log();

    // Update slash commands on Discord's side
    (async () => {
        try {
            console.log(`Started refreshing ${commands.length} application (/) commands.`);

            // The put method is used to fully refresh all commands
            const data = await rest.put(
                Routes.applicationCommands(clientId),
                { body: commands },
            );

            console.log(`Successfully reloaded ${data.length} application (/) commands.`);
        }
        catch (error) {
            // And of course, make sure you catch and log any errors!
            console.error(error);
        }
    })();
}
catch (error) {
    // And of course, make sure you catch and log any errors!
    console.error(error);
}