function museAmp(state: AppState = initialState, action: Action): AppState {
console.info(action.type);
let currentPlaylist = state.playlists[state.chosenPlaylistId];
switch (action.type) {
case 'ADD_PLAYLIST':
return i.assign({}, state, {
playlists: state.playlists.concat({
name: action.name,
songIds: []
})
});
case 'ADD_SONG':
return i.assign({}, state, {
library: state.library.concat(action.song)
});
case 'CHOOSE_PLAYLIST':
return i.assoc(state, 'chosenPlaylistId', action.id);
case 'CHOOSE_SONG':
return i.assoc(state, 'chosenSongId', action.id);
case 'PLAYLIST_ADD_SONG':
return i.assocIn(
state,
['playlists', state.chosenPlaylistId, 'songIds'],
i.push(
state.playlists[state.chosenPlaylistId].songIds,
action.id
)
);
case 'PLAYLIST_REMOVE_SONG':
return i.assocIn(
state,
['playlists', state.chosenPlaylistId, 'songIds'],
i.filter(
el => el !== action.id,
state.playlists[state.chosenPlaylistId].songIds
)
);
case 'REMOVE_PLAYLIST':
return i.assign({}, state, {
playlists: state.playlists.filter((el, i) => i !== action.id)
});
case 'TOGGLE_SHUFFLE':
return i.assocIn(state, ['playbackSettings', 'shuffle'], !state.playbackSettings.shuffle);
default:
(action: empty);
return state;
}
}
checkbox: memoize((props, eventValue) => {
const { model, modelValue } = props;
if (isMulti(model)) {
const valueWithItem = modelValue || [];
const valueWithoutItem = (valueWithItem || []).filter(item => !isEqual(item, eventValue));
const value = (valueWithoutItem.length === valueWithItem.length)
? icepick.push(valueWithItem, eventValue)
: valueWithoutItem;
return value;
}
return !modelValue;
}),
const obj2 = { c: { d: 2 } };
const result2: (typeof defaults & typeof obj2) = i.merge(result1, obj2);
result1 === result2; // true
const obj3 = { c: { d: 2 } };
const result3: (typeof defaults & typeof obj3) = i.merge(result1, obj3, function(target, source, key) {
return target;
});
}
// arrays
{
const a = [1];
const result1: typeof a = i.push(a, 2); // [1, 2];
const result2: typeof a = i.unshift(a, 0); // [0, 1, 2];
const result3: typeof a = i.pop(a); // [0, 1];
const result4: typeof a = i.shift(a); // [1];
}
{
const coll = i.map(v => v * 2, [1, 2, 3]); // [2, 4, 6]
const removeEvens = (arr: number[]) => arr.filter(v => v % 2);
const result: typeof coll = removeEvens([1, 2, 3]); // [1, 3]
}
// chain(coll) - not defined
{
const coll = {