use log::{info, trace};
use spacetimedb::{ReducerContext, Table, reducer};

use crate::tables::*;
use jong_types::*;

mod hand;
mod wall;

#[reducer]
pub fn join_or_create_lobby(ctx: &ReducerContext, mut lobby_id: u32) -> Result<(), String> {
    let ok_or = ctx
        .db
        .player()
        .identity()
        .find(ctx.sender)
        .ok_or(format!("cannot find player {}", ctx.sender))?;
    let mut player = ok_or;

    if lobby_id == 0 {
        let lobby = ctx.db.lobby().insert(Lobby {
            id: 0,
            host_player_id: player.id,
            players: vec![PlayerOrBot::Player { id: player.id }],
            game_state: GameState::Lobby,
            turn_state: TurnState::None,
        });
        info!("created lobby: {:?}", lobby);

        lobby_id = lobby.id;
    }

    player.lobby_id = lobby_id;

    let player = ctx.db.player().identity().update(player);

    info!("player {} joined lobby {}", player.id, lobby_id);
    Ok(())
}

#[reducer]
pub fn add_bot(ctx: &ReducerContext, lobby_id: u32) -> Result<(), String> {
    if lobby_id == 0 {
        Err("cannot add a bot without a lobby".into())
    } else if let Some(mut lobby) = ctx.db.lobby().id().find(lobby_id)
        && (ctx.db.player().lobby_id().filter(lobby_id).count()
            + ctx.db.bot().lobby_id().filter(lobby_id).count()
            < 4)
    {
        let bot = ctx.db.bot().insert(Bot {
            id: 0,
            lobby_id,
            hand_id: 0,
            pond_id: 0,
        });
        lobby.players.push(PlayerOrBot::Bot { id: bot.id });
        ctx.db.lobby().id().update(lobby);
        info!("added bot {} to lobby {}", bot.id, lobby_id);
        Ok(())
    } else {
        Err("lobby doesn't exist".into())
    }
}

#[reducer]
pub fn set_ready(ctx: &ReducerContext, ready: bool) {
    let mut player = ctx.db.player().identity().find(ctx.sender).unwrap();
    player.ready = ready;

    let player = ctx.db.player().identity().update(player);
}

#[reducer]
pub fn start_game(ctx: &ReducerContext) {
    let player = ctx.db.player().identity().find(ctx.sender).unwrap();
    if let Some(mut lobby) = ctx.db.lobby().host_player_id().find(player.id)
        && lobby.players.len() == 4
        && lobby.players.iter().all(|p| match p {
            PlayerOrBot::Player { id } => ctx.db.player().id().find(id).is_some_and(|p| p.ready),
            PlayerOrBot::Bot { id } => ctx.db.bot().id().find(id).is_some(),
        })
    {
        lobby.game_state = GameState::Deal;
        ctx.db.lobby().id().update(lobby);
    }
}