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import { feedActionTypes } from "./feed.types";
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const initialState = {
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  timelineUrl: "",
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  allFeeds: [],
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  currentFeed: null,
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  loading: false,
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  currentPage: 1,
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  pages: 1,
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};
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const feedReducer = (state = initialState, { type, payload }) => {
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  switch (type) {
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    case feedActionTypes.SET_TIMELINE_URL:
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      const newTimelineUrl = payload;
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      return { ...state, timelineUrl: newTimelineUrl };
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    case feedActionTypes.LOAD_FEEDS:
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      return { ...state, loading: true };
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    case feedActionTypes.LOAD_FEEDS_SUCCESS:
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      const { feeds, currentPage, pages } = payload;
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      return {
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        ...state,
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        allFeeds: feeds,
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        currentPage: currentPage,
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        pages: pages,
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        loading: false,
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      };
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    case feedActionTypes.LOAD_FEEDS_FAILURE:
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      return state;
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    case feedActionTypes.ADD_FEED:
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      if(payload.feedSharedId){
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        const newFeed = payload.feed;
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        const oldFeeds = state.allFeeds.map((feed)=> {
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          if(feed.feed_unique === payload.feedSharedId){
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            feed.owner_shared = (parseInt(feed.owner_shared) + 1).toString()
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          }
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          return feed
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        });
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        const newAllFeeds = [newFeed, ...oldFeeds];
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        return { ...state, allFeeds: newAllFeeds };
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      }
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      else {
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        const newFeed = payload.feed;
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        const newAllFeeds = [newFeed, ...state.allFeeds];
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        return { ...state, allFeeds: newAllFeeds };
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      }
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    case feedActionTypes.DELETE_FEED:
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      const feedIdToDelete = payload;
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      return {
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        ...state,
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        allFeeds: state.allFeeds.filter(
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          (feed) => feed.feed_unique !== feedIdToDelete
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        ),
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      };
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    case feedActionTypes.ADD_CURRENT_FEED:
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      return { ...state, currentFeed: payload };
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    case feedActionTypes.SET_CURRENT_PAGE:
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      const newCurrentPage = payload;
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      return { ...state, currentPage: newCurrentPage };
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    default:
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      return state;
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  }
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};
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export default feedReducer;