#[macro_use]
extern crate lazy_static;
use commands::*;
use serenity::model::channel::Message;
use serenity::model::id::ChannelId;
use serenity::prelude::*;
mod commands;
mod file;

pub fn main() {
    /*
    Client::new(
        file::read_file("secret")
            .next()
            .expect("The file containing the login secret is present but empty"),
        Handler,
    )
    .expect("Error creating client")
    .start()
    .expect("Could not connect to discord");
    */
    print_commands();
}

const PREFIX: char = '$';

pub struct Handler;
impl EventHandler for Handler {
    fn message(&self, ctx: Context, msg: Message) {
        if !msg.content.starts_with(PREFIX) {
            return;
        }
        if let Some(command) = find_matching(&msg.content) {
            let response = match command.execute(&msg) {
                Err(e) => e,
                // TODO: maybe check the return code here?
                Ok(()) => "Done",
            };
            send(msg.channel_id, response, &ctx);
        }
    }
}

pub fn send(target: ChannelId, message: &str, ctx: &Context) {
    if let Err(cause) = target.say(&ctx.http, message) {
        println!("Could not send message: {}", cause);
    }
}