monorepo/kifu/core/src/api.rs

use crate::{
    types::{AppState, Rank},
    ui::{new_game, playing_field, NewGameView, PlayingFieldView},
};
use serde::{Deserialize, Serialize};
use std::sync::{Arc, RwLock};
use typeshare::typeshare;

#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[typeshare]
#[serde(tag = "type", content = "content")]
pub enum CoreRequest {
    CreateGame(CreateGameRequest),
    LaunchScreen,
    NewGame,
    PlayingField,
    PlayStone(PlayStoneRequest),
    StartGame,
}

#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[typeshare]
pub struct PlayStoneRequest {
    pub column: u8,
    pub row: u8,
}

#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[typeshare]
pub struct CreateGameRequest {
    black_player: PlayerInfoRequest,
    white_player: PlayerInfoRequest,
}

#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[typeshare]
pub enum PlayerInfoRequest {
    Hotseat(HotseatPlayerRequest),
}

#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[typeshare]
pub struct HotseatPlayerRequest {
    name: Option<String>,
    rank: Option<Rank>,
}

#[derive(Clone, Debug, Serialize, Deserialize)]
#[typeshare]
#[serde(tag = "type", content = "content")]
pub enum CoreResponse {
    NewGameView(NewGameView),
    PlayingFieldView(PlayingFieldView),
}

#[derive(Clone, Debug)]
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: CoreRequest) -> CoreResponse {
        match request {
            /*
            CoreRequest::LaunchScreen => {
                let app_state = self.state.read().unwrap();

                At launch, I want to either show a list of games in progress, the current game, or the game creation screen.
                - if a live game is in progress, immmediately go to that game. Such a game will be classified at game creation, so it should be persisted to the state.
                - if no live games are in progress, but there are slow games in progress, show a list of the slow games and let the player choose which one to jump into.
                - if no games are in progress, show only the game creation screen
                - game creation menu should be present both when there are only slow games and when there are no games
                - the UI returned here will always be available in other places, such as when the user is viewing a game and wants to return to this page

                For the initial version, I want only to show the game creation screen. Then I will backtrack record application state so that the only decisions can be made.
            }
            */
            CoreRequest::CreateGame(_) => {
                let app_state = self.state.write().unwrap();
                let game = app_state.game.as_ref().unwrap();
                CoreResponse::PlayingFieldView(playing_field(game))
            }
            CoreRequest::LaunchScreen => CoreResponse::NewGameView(new_game()),
            CoreRequest::NewGame => CoreResponse::NewGameView(new_game()),
            CoreRequest::PlayingField => {
                let app_state = self.state.read().unwrap();
                let game = app_state.game.as_ref().unwrap();
                CoreResponse::PlayingFieldView(playing_field(game))
            }
            CoreRequest::PlayStone(request) => {
                let mut app_state = self.state.write().unwrap();
                app_state.place_stone(request);

                let game = app_state.game.as_ref().unwrap();
                CoreResponse::PlayingFieldView(playing_field(game))
            }
            CoreRequest::StartGame => {
                unimplemented!()
            }
        }
    }

    pub async fn run(&self) {}
}