import * as Discord from "discord.js";
import * as configFile from "./config";
import { IBotCommand } from "./api";

const client: Discord.Client = new Discord.Client();

let commands: IBotCommand[] = [];

loadCommands(`${__dirname}/commands`)

client.on("ready", () => {
    //check if bot is online.
    console.log("Miku is now online!!");
})

client.on("message", msg => {
    //ignore bot-sent messages
    if(msg.author.bot) { return; }

    //ignore no prefix messages
    if(!msg.content.startsWith(configFile.config.prefix)) {return; }

    // msg.channel.send(`${msg.author.username} talked to me.`);

    handleCommand(msg);
})

async function handleCommand(msg: Discord.Message){
    //Split the string into the command and all the args
    let command = msg.content.split("")[0].replace(configFile.config.prefix, "");
    let args = msg.content.split("").slice(1);

    //Looping through all of the bot's loaded commands
    for(const commandClass of commands){
        //test to execute code but ready for possible errors
        try{
            //Check if our command class is correct
            if(!commandClass.isThisCommand(command)){

                //Next iteration if false
                continue;
            }

            //pause execution while running the command's code
            await commandClass.runCommand(args, msg, client);
        }
        catch(exception){
            //if error, copy the exception
            console.log(exception);
        }
    }
}

function loadCommands(commandsPath: string){
    //Exit if there are 0 commands
    if(!configFile.config || (configFile.config.commands as string[]).length === 0){return;}

    //Loop through commands in config
    for(const commandName of configFile.config.commands as string[]){
        const commandsClass = require(`${commandsPath}/${commandName}`).default;
        const command = new commandsClass() as IBotCommand;
        commands.push(command);
    }
}


client.login(configFile.config.token);