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// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import {combineReducers} from 'redux';
import {ActionTypes, Constants} from 'utils/constants.jsx';
import {ChannelTypes, PostTypes} from 'mattermost-redux/action_types';
function postVisibility(state = {}, action) {
switch (action.type) {
case ChannelTypes.SELECT_CHANNEL: {
const nextState = {...state};
nextState[action.data] = Constants.POST_CHUNK_SIZE / 2;
return nextState;
}
case ActionTypes.INCREASE_POST_VISIBILITY: {
const nextState = {...state};
nextState[action.data] += action.amount;
return nextState;
}
case ActionTypes.RECEIVED_FOCUSED_POST: {
const nextState = {...state};
nextState[action.channelId] = Constants.POST_CHUNK_SIZE / 2;
return nextState;
}
case PostTypes.RECEIVED_POST: {
if (action.data && state[action.data.channel_id]) {
const nextState = {...state};
nextState[action.data.channel_id] += 1;
return nextState;
}
return state;
}
default:
return state;
}
}
function lastChannelViewTime(state = {}, action) {
switch (action.type) {
case ChannelTypes.SELECT_CHANNEL: {
if (action.member) {
const nextState = {...state};
nextState[action.data] = action.member.last_viewed_at;
return nextState;
}
return state;
}
default:
return state;
}
}
function loadingPosts(state = {}, action) {
switch (action.type) {
case ActionTypes.LOADING_POSTS: {
const nextState = {...state};
nextState[action.channelId] = action.data;
return nextState;
}
default:
return state;
}
}
function focusedPostId(state = '', action) {
switch (action.type) {
case ActionTypes.RECEIVED_FOCUSED_POST:
return action.data;
case ChannelTypes.SELECT_CHANNEL:
return '';
default:
return state;
}
}
export default combineReducers({
postVisibility,
lastChannelViewTime,
loadingPosts,
focusedPostId
});
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