use serenity::model::channel::Message;
use serenity::prelude::*;
use serde::{Serialize, Deserialize};
extern crate reqwest;

pub fn query_pacman(ctx: Context, msg: Message) {
    let mut args = msg.content.split_whitespace().collect::<Vec<_>>();
    // the !pacman
    args.remove(0);
    if args.len() == 0 {
        if let Err(cause) = msg.channel_id .say(ctx.http, "Error: expected at least 1 additional argument") {
            println!("Could not send message: {:?}", cause);
        }
        return;
    }
    let query = args.join(" ");
    match make_call(&query) {
        Err(err) => println!("{:?}", err),
        Ok(result) => {
            if let Err(_cause) = msg.channel_id.say(ctx.http, format!("{}: version {}", result.results[0].pkgname, result.results[0].pkgver)) {
                println!("asd");
            }
        }
    }
}

fn make_call(query: &str) -> Result<Response, reqwest::Error> {
    let mut url = "https://www.archlinux.org/packages/search/json/?q=".to_owned();
    url.push_str(&query);
    let resp = reqwest::get(&url)?.json::<Response>()?;
    println!("{:?}", &resp);
    Ok(resp)
}

#[derive(Serialize, Deserialize, Debug)]
struct Response {
    version: i8,
    limit: i32,
    valid: bool,
    results: Vec<Package>,
}

#[derive(Serialize, Deserialize, Debug)]
struct Package {
    pkgname: String,
    pkgbase: String,
    repo: String,
    pkgver: String,
    pkgdesc: String,
    url: String,
    compressed_size: i64,
    installed_size: i64,
    build_date: String,
    last_update: String,
    flag_date: Option<String>,
}