#![feature(random)]
use std::{
    fs::File,
    io::Write,
    net::{SocketAddr, TcpStream},
    path::PathBuf,
    random::random,
};

use anyhow::Result;
use clap::{Parser, Subcommand};
use log::info;
use weareshared::{
    helper::ReadWrite,
    packets::{Data, Object, Packet},
    respack::RespackReader,
    store::ResourceStore,
};

#[derive(Parser)]
struct Args {
    #[clap(subcommand)]
    action: Action,
}

#[derive(Subcommand)]
enum Action {
    Add(Add),
}

#[derive(Parser)]
struct Add {
    address: SocketAddr,
    pack: PathBuf,
    #[arg(short = 'A', long)]
    announce: bool,
    #[arg(short, long)]
    add: bool,
    #[arg(short, long)]
    disown: bool,
}

fn main() -> Result<()> {
    env_logger::init_from_env("LOG");
    let args = Args::parse();

    match args.action {
        Action::Add(a) => action_add(a),
    }
}

fn action_add(args: Add) -> Result<()> {
    info!("loading pack");
    let pack = RespackReader::open(File::open(&args.pack)?)?;
    let entry = pack.entry().unwrap();
    let store = ResourceStore::new_respack(pack)?;
    let entry = store.get(entry)?.unwrap();

    info!("connecting");
    let mut sock = TcpStream::connect(args.address)?;
    Packet::Connect(random()).write(&mut sock)?;
    for p in entry.c_prefab {
        info!("adding {p}");
        if args.announce {
            Packet::AnnouncePrefab(p.clone()).write(&mut sock)?;
        }
        if args.add {
            let ob = Object::new();
            Packet::Add(ob, p.clone()).write(&mut sock)?;
            if args.disown {
                // TODO disown packet once it exists
            }
        }
    }
    sock.flush()?;

    info!("idling for resource requests");
    loop {
        let packet = Packet::read(&mut sock)?;
        match packet {
            Packet::RequestResource(hash) => {
                if let Some(d) = store.get_raw(hash)? {
                    Packet::RespondResource(hash, Data(d)).write(&mut sock)?;
                    sock.flush()?;
                }
            }
            _ => (),
        }
    }
}