gab-social/app/javascript/gabsocial/reducers/news.js

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import {
GAB_TRENDS_FETCH_REQUEST,
GAB_TRENDS_FETCH_SUCCESS,
GAB_TRENDS_FETCH_FAIL,
GAB_TREND_FEED_EXPAND_REQUEST,
GAB_TREND_FEED_EXPAND_SUCCESS,
GAB_TREND_FEED_EXPAND_FAIL,
GAB_NEWS_FETCH_REQUEST,
GAB_NEWS_FETCH_SUCCESS,
GAB_NEWS_FETCH_FAIL,
LATEST_GAB_STATUSES_FETCH_REQUEST,
LATEST_GAB_STATUSES_FETCH_SUCCESS,
LATEST_GAB_STATUSES_FETCH_FAIL,
} from '../actions/news'
import {
Map as ImmutableMap,
List as ImmutableList,
fromJS,
} from 'immutable'
const defaultMap = ImmutableMap({
isLoading: false,
isFetched: false,
items: ImmutableList(),
})
const initialState = ImmutableMap({
trends_leadline: ImmutableMap({
title: null,
image: null,
trends_url: null,
}),
trends_headlines: defaultMap,
trends_breaking: defaultMap,
gab_news: defaultMap,
latest_from_gab: defaultMap,
trends_feeds: ImmutableMap(), // ex: { 'feed_id_1': defaultMap, 'feed_id_2': defaultMap, ... }
})
const normalizeHeadlineItem = (item) => {
return ImmutableMap({
trend_id: item._id,
title: item.title,
trends_url: `https://trends.gab.com/trend?url=${item.href}`,
})
}
const normalizeTrendsItem = (item) => {
return ImmutableMap({
title: `${item.pagePreview.title}`.trim(),
description: `${item.pagePreview.description}`.trim(),
publish_date: item.pubDate,
image: Array.isArray(item.pagePreview.images) ? item.pagePreview.images[0] : null, // : todo : proxy
feed_title: item.feed.title,
feed_slug: item.feed.slug,
feed_base_url: `${item.feed.url}`.replace('www.', '').replace('https://', '').replace('http://', '').replace('/', ''),
trend_feed_id: item.feed._id,
trend_id: item._id,
trends_url: `https://trends.gab.com/trend?url=${item.link}`,
})
}
const normalizeNewsItem = (item) => {
return ImmutableMap({
id: item.id,
url: item.url,
title: item.title,
image: item.image,
publish_date: item.date_published,
})
}
const setStateKeysOnRequest = (state, keys) => {
return state.withMutations((map) => {
keys.map((key) => map.setIn([key, 'isLoading'], true))
})
}
const setStateKeysOnFail = (state, keys) => {
return state.withMutations((map) => {
keys.map((key) => {
map.setIn([key, 'isLoading'], false)
map.setIn([key, 'isFetched'], true)
map.setIn([key, 'items'], ImmutableList())
})
})
}
const setStateKeysOnSuccess = (state, keysAndData) => {
return state.withMutations((map) => {
Object.keys(keysAndData).map((key) => {
map.setIn([key, 'isLoading'], false)
map.setIn([key, 'isFetched'], true)
map.setIn([key, 'items'], keysAndData[key])
})
})
}
export default function (state = initialState, action) {
switch (action.type) {
case GAB_TRENDS_FETCH_REQUEST:
return setStateKeysOnRequest(state, ['trends_headlines', 'trends_breaking'])
case GAB_TRENDS_FETCH_FAIL:
return setStateKeysOnFail(state, ['trends_headlines', 'trends_breaking'])
case GAB_TRENDS_FETCH_SUCCESS:
let trendsFetchData = {}
try {
trendsFetchData.trends_headlines = ImmutableList(action.items.trends.leadHeadlines.map((item) => normalizeHeadlineItem(item)))
trendsFetchData.trends_breaking = ImmutableList(action.items.trends.rssFeedItems.map((item) => normalizeTrendsItem(item)))
} catch (error) {
trendsFetchData = {
breakingItems: ImmutableList(),
headlineItems: ImmutableList(),
}
}
// : todo :
// trends_leadline: ImmutableMap({
// title: null,
// image: null,
// trends_url: null,
// }),
return setStateKeysOnSuccess(state, trendsFetchData)
//
case LATEST_GAB_STATUSES_FETCH_REQUEST:
return setStateKeysOnRequest(state, ['latest_from_gab'])
case LATEST_GAB_STATUSES_FETCH_FAIL:
return setStateKeysOnFail(state, ['latest_from_gab'])
case LATEST_GAB_STATUSES_FETCH_SUCCESS:
let latestGabStatusData = {}
try {
latestGabStatusData.latest_from_gab = ImmutableList(action.statuses.map((status) => status.id))
} catch (error) {
latestGabStatusData = {
latest_from_gab: ImmutableList(),
}
}
return setStateKeysOnSuccess(state, latestGabStatusData)
//
case GAB_NEWS_FETCH_REQUEST:
return setStateKeysOnRequest(state, ['gab_news'])
case GAB_NEWS_FETCH_FAIL:
return setStateKeysOnFail(state, ['gab_news'])
case GAB_NEWS_FETCH_SUCCESS:
let latestGabNewsData = {}
try {
latestGabNewsData.gab_news = ImmutableList(action.items.map((item) => normalizeNewsItem(item)))
} catch (error) {
console.log("news reducer error: ", error)
latestGabNewsData = {
gab_news: ImmutableList(),
}
}
return setStateKeysOnSuccess(state, latestGabNewsData)
default:
return state
}
}