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use tokio::sync::mpsc;
use go_fish_web::ClientMessage;
use crate::state::{
AppState, GameInputState, PreLobbyInputLobbyIdState, PreLobbyInputState, Screen,
is_valid_lobby_id,
};
// ── Platform-agnostic key types ───────────────────────────────────────────────
/// A platform-agnostic key code, covering the variants used by this app.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Key {
Char(char),
Enter,
Backspace,
Esc,
Up,
Down,
Left,
Right,
Other,
}
/// A platform-agnostic key event.
pub struct KeyInput {
pub key: Key,
pub ctrl: bool,
}
#[cfg(not(target_arch = "wasm32"))]
impl From<crossterm::event::KeyEvent> for KeyInput {
fn from(e: crossterm::event::KeyEvent) -> Self {
use crossterm::event::{KeyCode, KeyModifiers};
KeyInput {
key: match e.code {
KeyCode::Char(c) => Key::Char(c),
KeyCode::Enter => Key::Enter,
KeyCode::Backspace => Key::Backspace,
KeyCode::Esc => Key::Esc,
KeyCode::Up => Key::Up,
KeyCode::Down => Key::Down,
KeyCode::Left => Key::Left,
KeyCode::Right => Key::Right,
_ => Key::Other,
},
ctrl: e.modifiers.contains(KeyModifiers::CONTROL),
}
}
}
#[cfg(target_arch = "wasm32")]
impl From<ratzilla::event::KeyEvent> for KeyInput {
fn from(e: ratzilla::event::KeyEvent) -> Self {
use ratzilla::event::KeyCode;
KeyInput {
key: match e.code {
KeyCode::Char(c) => Key::Char(c),
KeyCode::Enter => Key::Enter,
KeyCode::Backspace => Key::Backspace,
KeyCode::Esc => Key::Esc,
KeyCode::Up => Key::Up,
KeyCode::Down => Key::Down,
KeyCode::Left => Key::Left,
KeyCode::Right => Key::Right,
_ => Key::Other,
},
ctrl: e.ctrl,
}
}
}
// ── Key dispatch ──────────────────────────────────────────────────────────────
/// Handle a single key event. Returns `true` if the application should quit.
///
/// Called by both the native event loop and the WASM key callback so all
/// key-dispatch logic lives in one place.
pub fn handle_key(
state: &mut AppState,
input: KeyInput,
client_msg_tx: &mpsc::Sender<ClientMessage>,
) -> bool {
if input.ctrl && input.key == Key::Char('c') {
if let Screen::Lobby(_) = &state.screen {
let _ = client_msg_tx.try_send(ClientMessage::LeaveLobby);
}
return true;
}
match &mut state.screen {
Screen::PreLobby(pre) => {
match &mut pre.input_state {
PreLobbyInputState::None => {
if input.key == Key::Char('c') {
let _ = client_msg_tx.try_send(ClientMessage::CreateLobby);
} else if input.key == Key::Char('q') {
let _ = client_msg_tx.try_send(ClientMessage::LeaveLobby);
return true;
} else if input.key == Key::Char('j') {
pre.input_state = PreLobbyInputState::LobbyId(
PreLobbyInputLobbyIdState::default(),
);
}
}
PreLobbyInputState::LobbyId(lobby_id_state) => {
let lobby_id = &mut lobby_id_state.lobby_id;
match input.key {
Key::Char(ch) => {
lobby_id.push(ch);
lobby_id_state.error = None;
}
Key::Backspace => {
lobby_id.pop();
}
Key::Enter => {
if is_valid_lobby_id(lobby_id) {
let lobby_id = lobby_id.trim().to_string();
let _ = client_msg_tx
.try_send(ClientMessage::JoinLobby(lobby_id));
} else {
lobby_id_state.error =
Some("Please enter a valid Lobby ID".to_string());
}
}
Key::Esc => {
pre.input_state = PreLobbyInputState::None;
}
_ => {}
}
}
}
}
Screen::Lobby(lobby) => {
let is_leader = lobby.leader == lobby.player_name;
if input.key == Key::Char('s')
&& lobby.players.len() >= 2
&& is_leader
{
let _ = client_msg_tx.try_send(ClientMessage::StartGame);
} else if input.key == Key::Char('a') && is_leader {
let _ = client_msg_tx.try_send(ClientMessage::AddBot {
bot_type: go_fish_web::BotType::SimpleBot,
});
} else if input.key == Key::Char('d') && is_leader {
let _ = client_msg_tx.try_send(ClientMessage::RemoveBot);
} else if input.key == Key::Char('q') {
let _ = client_msg_tx.try_send(ClientMessage::LeaveLobby);
}
}
Screen::Connecting(_) => {}
Screen::Game(game) => {
if game.game_result.is_some() {
if input.key == Key::Enter || input.key == Key::Char(' ') {
let player_name = game.player_name.clone();
state.screen = Screen::PreLobby(crate::state::PreLobbyState {
player_name,
input_state: PreLobbyInputState::None,
error: None,
});
} else if input.key == Key::Char('q') {
return true;
}
} else {
match &game.input_state {
GameInputState::Idle => {
if input.key == Key::Char('q') {
return true;
}
let opponents: Vec<String> = game
.players
.iter()
.filter(|p| *p != &game.player_name)
.cloned()
.collect();
if input.key == Key::Char('h')
&& !opponents.is_empty()
&& game.active_player == game.player_name
{
game.input_state = if opponents.len() == 1 {
GameInputState::SelectingRank {
target: opponents[0].clone(),
cursor: 0,
}
} else {
GameInputState::SelectingTarget { cursor: 0 }
};
}
}
GameInputState::SelectingTarget { cursor } => {
let opponents: Vec<String> = game
.players
.iter()
.filter(|p| *p != &game.player_name)
.cloned()
.collect();
let n = opponents.len();
if n == 0 {
return false;
}
let cursor = *cursor;
match input.key {
Key::Char('j') | Key::Down => {
game.input_state = GameInputState::SelectingTarget {
cursor: (cursor + 1) % n,
};
}
Key::Char('k') | Key::Up => {
game.input_state = GameInputState::SelectingTarget {
cursor: (cursor + n - 1) % n,
};
}
Key::Enter => {
if !game.hand.books.is_empty() {
let target = opponents[cursor].clone();
game.input_state =
GameInputState::SelectingRank { target, cursor: 0 };
}
}
Key::Esc => {
game.input_state = GameInputState::Idle;
}
Key::Char('q') => {
return true;
}
_ => {}
}
}
GameInputState::SelectingRank { target, cursor } => {
let m = game.hand.books.len();
if m == 0 {
game.input_state = GameInputState::SelectingTarget { cursor: 0 };
} else {
let cursor = *cursor;
let target = target.clone();
match input.key {
Key::Char('l') | Key::Right => {
game.input_state = GameInputState::SelectingRank {
target,
cursor: (cursor + 1) % m,
};
}
Key::Char('h') | Key::Left => {
game.input_state = GameInputState::SelectingRank {
target,
cursor: (cursor + m - 1) % m,
};
}
Key::Enter => {
let rank = game.hand.books[cursor].rank;
let _ = client_msg_tx.try_send(ClientMessage::Hook(
go_fish_web::ClientHookRequest {
target_name: target,
rank,
},
));
game.input_state = GameInputState::Idle;
}
Key::Esc => {
game.input_state =
GameInputState::SelectingTarget { cursor: 0 };
}
Key::Char('q') => {
return true;
}
_ => {}
}
}
}
}
}
}
}
false
}