bsky-app/src/state/models/suggested-actors-view.ts
2022-11-14 13:42:53 -06:00

104 lines
2 KiB
TypeScript

import {makeAutoObservable} from 'mobx'
import * as GetSuggestions from '../../third-party/api/src/client/types/app/bsky/actor/getSuggestions'
import {RootStoreModel} from './root-store'
type ResponseSuggestedActor = GetSuggestions.OutputSchema['actors'][number]
export type SuggestedActor = ResponseSuggestedActor & {
_reactKey: string
}
export class SuggestedActorsViewModel {
// state
isLoading = false
isRefreshing = false
hasLoaded = false
error = ''
// data
suggestions: SuggestedActor[] = []
constructor(public rootStore: RootStoreModel) {
makeAutoObservable(
this,
{
rootStore: false,
},
{autoBind: true},
)
}
get hasContent() {
return this.suggestions.length > 0
}
get hasError() {
return this.error !== ''
}
get isEmpty() {
return this.hasLoaded && !this.hasContent
}
// public api
// =
async setup() {
await this._fetch()
}
async refresh() {
await this._fetch(true)
}
async loadMore() {
// TODO
}
// state transitions
// =
private _xLoading(isRefreshing = false) {
this.isLoading = true
this.isRefreshing = isRefreshing
this.error = ''
}
private _xIdle(err: string = '') {
this.isLoading = false
this.isRefreshing = false
this.hasLoaded = true
this.error = err
}
// loader functions
// =
private async _fetch(isRefreshing = false) {
this._xLoading(isRefreshing)
try {
const res = await this.rootStore.api.app.bsky.actor.getSuggestions()
this._replaceAll(res)
this._xIdle()
} catch (e: any) {
this._xIdle(e.toString())
}
}
private _replaceAll(res: GetSuggestions.Response) {
this.suggestions.length = 0
let counter = 0
for (const item of res.data.actors) {
if (item.did === this.rootStore.me.did) {
continue // skip self
}
this._append({
_reactKey: `item-${counter++}`,
...item,
})
}
}
private _append(item: SuggestedActor) {
this.suggestions.push(item)
}
}