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|
import {makeAutoObservable, reaction} from 'mobx'
import {SavedFeedsModel} from './saved-feeds'
import {FeedsDiscoveryModel} from '../discovery/feeds'
import {FeedSourceModel} from '../content/feed-source'
import {RootStoreModel} from '../root-store'
export type MyFeedsItem =
| {
_reactKey: string
type: 'spinner'
}
| {
_reactKey: string
type: 'saved-feeds-loading'
numItems: number
}
| {
_reactKey: string
type: 'discover-feeds-loading'
}
| {
_reactKey: string
type: 'error'
error: string
}
| {
_reactKey: string
type: 'saved-feeds-header'
}
| {
_reactKey: string
type: 'saved-feed'
feed: FeedSourceModel
}
| {
_reactKey: string
type: 'saved-feeds-load-more'
}
| {
_reactKey: string
type: 'discover-feeds-header'
}
| {
_reactKey: string
type: 'discover-feeds-no-results'
}
| {
_reactKey: string
type: 'discover-feed'
feed: FeedSourceModel
}
export class MyFeedsUIModel {
saved: SavedFeedsModel
discovery: FeedsDiscoveryModel
constructor(public rootStore: RootStoreModel) {
makeAutoObservable(this)
this.saved = new SavedFeedsModel(this.rootStore)
this.discovery = new FeedsDiscoveryModel(this.rootStore)
}
get isRefreshing() {
return !this.saved.isLoading && this.saved.isRefreshing
}
get isLoading() {
return this.saved.isLoading || this.discovery.isLoading
}
async setup() {
if (!this.saved.hasLoaded) {
await this.saved.refresh()
}
if (!this.discovery.hasLoaded) {
await this.discovery.refresh()
}
}
registerListeners() {
const dispose1 = reaction(
() => this.rootStore.preferences.savedFeeds,
() => this.saved.refresh(),
)
const dispose2 = reaction(
() => this.rootStore.preferences.pinnedFeeds,
() => this.saved.refresh(),
)
return () => {
dispose1()
dispose2()
}
}
async refresh() {
return Promise.all([this.saved.refresh(), this.discovery.refresh()])
}
async loadMore() {
return this.discovery.loadMore()
}
get items() {
let items: MyFeedsItem[] = []
items.push({
_reactKey: '__saved_feeds_header__',
type: 'saved-feeds-header',
})
if (this.saved.isLoading) {
items.push({
_reactKey: '__saved_feeds_loading__',
type: 'saved-feeds-loading',
numItems: this.rootStore.preferences.savedFeeds.length || 3,
})
} else if (this.saved.hasError) {
items.push({
_reactKey: '__saved_feeds_error__',
type: 'error',
error: this.saved.error,
})
} else {
const savedSorted = this.saved.all
.slice()
.sort((a, b) => a.displayName.localeCompare(b.displayName))
items = items.concat(
savedSorted.map(feed => ({
_reactKey: `saved-${feed.uri}`,
type: 'saved-feed',
feed,
})),
)
items.push({
_reactKey: '__saved_feeds_load_more__',
type: 'saved-feeds-load-more',
})
}
items.push({
_reactKey: '__discover_feeds_header__',
type: 'discover-feeds-header',
})
if (this.discovery.isLoading && !this.discovery.hasContent) {
items.push({
_reactKey: '__discover_feeds_loading__',
type: 'discover-feeds-loading',
})
} else if (this.discovery.hasError) {
items.push({
_reactKey: '__discover_feeds_error__',
type: 'error',
error: this.discovery.error,
})
} else if (this.discovery.isEmpty) {
items.push({
_reactKey: '__discover_feeds_no_results__',
type: 'discover-feeds-no-results',
})
} else {
items = items.concat(
this.discovery.feeds.map(feed => ({
_reactKey: `discover-${feed.uri}`,
type: 'discover-feed',
feed,
})),
)
if (this.discovery.isLoading) {
items.push({
_reactKey: '__discover_feeds_loading_more__',
type: 'spinner',
})
}
}
return items
}
}
|
