use crate::types::AppState;
use crate::ui::{playing_field, PlayingFieldView};
use std::sync::{Arc, RwLock};

#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Request {
    PlayingField,
    PlayStoneRequest(PlayStoneRequest),
}

#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct PlayStoneRequest {
    pub column: usize,
    pub row: usize,
}

#[derive(Clone, Debug)]
pub enum Response {
    PlayingFieldView(PlayingFieldView),
}

#[derive(Clone)]
pub struct CoreApp {
    state: Arc<RwLock<AppState>>,
}

impl CoreApp {
    pub fn new() -> Self {
        let state = Arc::new(RwLock::new(AppState::new()));

        Self { state }
    }

    pub async fn dispatch(&self, request: Request) -> Response {
        match request {
            Request::PlayingField => {
                let app_state = self.state.read().unwrap();
                let game = app_state.game.as_ref().unwrap();
                Response::PlayingFieldView(playing_field(game))
            }
            Request::PlayStoneRequest(request) => {
                let mut app_state = self.state.write().unwrap();
                app_state.place_stone(request);

                let game = app_state.game.as_ref().unwrap();
                Response::PlayingFieldView(playing_field(game))
            }
        }
    }

    pub async fn run(&self) {}
}