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import {makeAutoObservable} from 'mobx'
import {bsky} from '@adxp/mock-api'
import {RootStoreModel} from './root-store'
type Subject = bsky.UserFollowsView.Response['subject']
export type FollowItem = bsky.UserFollowsView.Response['follows'][number] & {
_reactKey: string
}
export class UserFollowsViewModel implements bsky.UserFollowsView.Response {
// state
isLoading = false
isRefreshing = false
hasLoaded = false
error = ''
params: bsky.UserFollowsView.Params
// data
subject: Subject = {did: '', name: '', displayName: ''}
follows: FollowItem[] = []
constructor(
public rootStore: RootStoreModel,
params: bsky.UserFollowsView.Params,
) {
makeAutoObservable(
this,
{
rootStore: false,
params: false,
},
{autoBind: true},
)
this.params = params
}
get hasContent() {
return this.subject.did !== ''
}
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)
await new Promise(r => setTimeout(r, 250)) // DEBUG
try {
const res = (await this.rootStore.api.mainPds.view(
'blueskyweb.xyz:UserFollowsView',
this.params,
)) as bsky.UserFollowsView.Response
this._replaceAll(res)
this._xIdle()
} catch (e: any) {
this._xIdle(`Failed to load feed: ${e.toString()}`)
}
}
private _replaceAll(res: bsky.UserFollowsView.Response) {
this.subject.did = res.subject.did
this.subject.name = res.subject.name
this.subject.displayName = res.subject.displayName
this.follows.length = 0
let counter = 0
for (const item of res.follows) {
this._append({_reactKey: `item-${counter++}`, ...item})
}
}
private _append(item: FollowItem) {
this.follows.push(item)
}
}
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