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// @flow
import { normalize } from 'normalizr';
import { push } from 'react-router-redux';
import type { Channel, SagaIterator } from 'redux-saga';
import { eventChannel } from 'redux-saga';
import { all, apply, call, put, take } from 'redux-saga/effects';
import { SevenWondersSession } from '../api/sevenWondersApi';
import { actions as gameActions, types } from '../redux/actions/lobby';
import { actions as playerActions } from '../redux/actions/players';
import { game as gameSchema } from '../schemas/games';
function* watchLobbyUpdates(session: SevenWondersSession, lobbyId: number): SagaIterator {
const lobbyUpdatesChannel: Channel = yield eventChannel(session.watchLobbyUpdated(lobbyId));
try {
while (true) {
const lobby = yield take(lobbyUpdatesChannel);
const normalized = normalize(lobby, gameSchema);
// players update needs to be first, otherwise the UI cannot find the player in the list
yield put(playerActions.updatePlayers(normalized.entities.players));
yield put(gameActions.updateGames(normalized.entities.games));
}
} finally {
yield apply(lobbyUpdatesChannel, lobbyUpdatesChannel.close);
}
}
function* watchGameStart(session: SevenWondersSession, lobbyId: number): SagaIterator {
const gameStartedChannel = yield eventChannel(session.watchGameStarted(lobbyId));
try {
yield take(gameStartedChannel);
yield put(gameActions.enterGame(lobbyId));
yield put(push(`/game/${lobbyId}`));
} finally {
yield apply(gameStartedChannel, gameStartedChannel.close);
}
}
function* startGame(session: SevenWondersSession): SagaIterator {
while (true) {
yield take(types.REQUEST_START_GAME);
yield apply(session, session.startGame, []);
}
}
export function* lobbySaga(session: SevenWondersSession): SagaIterator {
const { gameId } = yield take(types.ENTER_LOBBY);
yield all([
call(watchLobbyUpdates, session, gameId),
call(watchGameStart, session, gameId),
call(startGame, session)
]);
}
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