chinwagsocial/app/assets/javascripts/components/reducers/timelines.jsx

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import { TIMELINE_SET, TIMELINE_UPDATE } from '../actions/timelines';
import { REBLOG_SUCCESS, FAVOURITE_SUCCESS } from '../actions/interactions';
import Immutable from 'immutable';
const initialState = Immutable.Map();
function updateMatchingStatuses(state, needle, callback) {
return state.map(function (list) {
return list.map(function (status) {
if (status.get('id') === needle.get('id')) {
return callback(status);
} else if (status.getIn(['reblog', 'id'], null) === needle.get('id')) {
return status.set('reblog', callback(status.get('reblog')));
}
return status;
});
});
};
export default function timelines(state = initialState, action) {
switch(action.type) {
case TIMELINE_SET:
return state.set(action.timeline, Immutable.fromJS(action.statuses));
case TIMELINE_UPDATE:
return state.update(action.timeline, list => list.unshift(Immutable.fromJS(action.status)));
case REBLOG_SUCCESS:
case FAVOURITE_SUCCESS:
return updateMatchingStatuses(state, action.status, () => Immutable.fromJS(action.response));
default:
return state;
}
}