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subscriptions-community.js
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subscriptions-community.js
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import { defineComponent } from 'vue'
import { mapActions, mapMutations } from 'vuex'
import SubscriptionsTabUI from '../subscriptions-tab-ui/subscriptions-tab-ui.vue'
import { calculatePublishedDate, copyToClipboard, showToast } from '../../helpers/utils'
import { getLocalChannelCommunity } from '../../helpers/api/local'
import { invidiousGetCommunityPosts } from '../../helpers/api/invidious'
export default defineComponent({
name: 'SubscriptionsCommunity',
components: {
'subscriptions-tab-ui': SubscriptionsTabUI
},
data: function () {
return {
isLoading: false,
postList: [],
errorChannels: [],
attemptedFetch: false,
}
},
computed: {
backendPreference: function () {
return this.$store.getters.getBackendPreference
},
backendFallback: function () {
return this.$store.getters.getBackendFallback
},
currentInvidiousInstance: function () {
return this.$store.getters.getCurrentInvidiousInstance
},
activeProfile: function () {
return this.$store.getters.getActiveProfile
},
activeProfileId: function () {
return this.activeProfile._id
},
cacheEntriesForAllActiveProfileChannels() {
const entries = []
this.activeSubscriptionList.forEach((channel) => {
const cacheEntry = this.$store.getters.getPostsCacheByChannel(channel.id)
if (cacheEntry == null) { return }
entries.push(cacheEntry)
})
return entries
},
postCacheForAllActiveProfileChannelsPresent() {
if (this.cacheEntriesForAllActiveProfileChannels.length === 0) { return false }
if (this.cacheEntriesForAllActiveProfileChannels.length < this.activeSubscriptionList.length) { return false }
return this.cacheEntriesForAllActiveProfileChannels.every((cacheEntry) => {
return cacheEntry.posts != null
})
},
activeSubscriptionList: function () {
return this.activeProfile.subscriptions
},
fetchSubscriptionsAutomatically: function() {
return this.$store.getters.getFetchSubscriptionsAutomatically
},
},
watch: {
activeProfile: async function (_) {
this.isLoading = true
this.loadpostsFromCacheSometimes()
},
},
mounted: async function () {
this.isLoading = true
this.loadpostsFromCacheSometimes()
},
methods: {
loadpostsFromCacheSometimes() {
// This method is called on view visible
if (this.postCacheForAllActiveProfileChannelsPresent) {
this.loadPostsFromCacheForAllActiveProfileChannels()
return
}
this.maybeLoadPostsForSubscriptionsFromRemote()
},
async loadPostsFromCacheForAllActiveProfileChannels() {
const postList = []
this.activeSubscriptionList.forEach((channel) => {
const channelCacheEntry = this.$store.getters.getPostsCacheByChannel(channel.id)
postList.push(...channelCacheEntry.posts)
})
postList.sort((a, b) => {
return calculatePublishedDate(b.publishedText) - calculatePublishedDate(a.publishedText)
})
this.postList = postList
this.isLoading = false
},
loadPostsForSubscriptionsFromRemote: async function () {
if (this.activeSubscriptionList.length === 0) {
this.isLoading = false
this.postList = []
return
}
const channelsToLoadFromRemote = this.activeSubscriptionList
const postList = []
let channelCount = 0
this.isLoading = true
this.updateShowProgressBar(true)
this.setProgressBarPercentage(0)
this.attemptedFetch = true
this.errorChannels = []
const postListFromRemote = (await Promise.all(channelsToLoadFromRemote.map(async (channel) => {
let posts = []
if ((!process.env.IS_CORDOVA && !process.env.IS_ELECTRON) || this.backendPreference === 'invidious') {
posts = await this.getChannelPostsInvidious(channel)
} else {
posts = await this.getChannelPostsLocal(channel)
}
channelCount++
const percentageComplete = (channelCount / channelsToLoadFromRemote.length) * 100
this.setProgressBarPercentage(percentageComplete)
this.updateSubscriptionPostsCacheByChannel({
channelId: channel.id,
posts: posts,
})
return posts
}))).flatMap((o) => o)
postList.push(...postListFromRemote)
postList.sort((a, b) => {
return calculatePublishedDate(b.publishedText) - calculatePublishedDate(a.publishedText)
})
this.postList = postList
this.isLoading = false
this.updateShowProgressBar(false)
},
maybeLoadPostsForSubscriptionsFromRemote: async function () {
if (this.fetchSubscriptionsAutomatically) {
// `this.isLoading = false` is called inside `loadPostsForSubscriptionsFromRemote` when needed
await this.loadPostsForSubscriptionsFromRemote()
} else {
this.postList = []
this.attemptedFetch = false
this.isLoading = false
}
},
getChannelPostsLocal: async function (channel) {
try {
const entries = await getLocalChannelCommunity(channel.id)
if (entries === null) {
this.errorChannels.push(channel)
return []
}
entries.forEach(post => {
post.authorId = channel.id
})
return entries
} catch (err) {
console.error(err)
const errorMessage = this.$t('Local API Error (Click to copy)')
showToast(`${errorMessage}: ${err}`, 10000, () => {
copyToClipboard(err)
})
if (this.backendPreference === 'local' && this.backendFallback) {
showToast(this.$t('Falling back to Invidious API'))
return await this.getChannelPostsInvidious(channel)
}
return []
}
},
getChannelPostsInvidious: function (channel) {
return new Promise((resolve, reject) => {
invidiousGetCommunityPosts(channel.id).then(result => {
result.posts.forEach(post => {
post.authorId = channel.id
})
resolve(result.posts)
}).catch((err) => {
console.error(err)
const errorMessage = this.$t('Invidious API Error (Click to copy)')
showToast(`${errorMessage}: ${err}`, 10000, () => {
copyToClipboard(err)
})
if ((process.env.IS_CORDOVA || process.env.IS_ELECTRON) && this.backendPreference === 'invidious' && this.backendFallback) {
showToast(this.$t('Falling back to the local API'))
resolve(this.getChannelPostsLocal(channel))
} else {
resolve([])
}
})
})
},
...mapActions([
'updateShowProgressBar',
'updateSubscriptionPostsCacheByChannel',
]),
...mapMutations([
'setProgressBarPercentage'
])
}
})