bsky-app/src/state/models/suggested-invites-view.ts
2022-11-11 12:49:53 -06:00

133 lines
2.9 KiB
TypeScript

import {makeAutoObservable, runInAction} from 'mobx'
import {RootStoreModel} from './root-store'
import {UserFollowsViewModel, FollowItem} from './user-follows-view'
import {GetAssertionsView} from './get-assertions-view'
import {APP_BSKY_SYSTEM, APP_BSKY_GRAPH} from '../../third-party/api'
export interface SuggestedInvitesViewParams {
sceneDid: string
}
export class SuggestedInvitesView {
// state
isLoading = false
isRefreshing = false
hasLoaded = false
error = ''
params: SuggestedInvitesViewParams
sceneAssertionsView: GetAssertionsView
myFollowsView: UserFollowsViewModel
// data
suggestions: FollowItem[] = []
constructor(
public rootStore: RootStoreModel,
params: SuggestedInvitesViewParams,
) {
makeAutoObservable(
this,
{
rootStore: false,
params: false,
},
{autoBind: true},
)
this.params = params
this.sceneAssertionsView = new GetAssertionsView(rootStore, {
author: params.sceneDid,
assertion: APP_BSKY_GRAPH.AssertMember,
})
this.myFollowsView = new UserFollowsViewModel(rootStore, {
user: rootStore.me.did || '',
})
}
get hasContent() {
return this.suggestions.length > 0
}
get hasError() {
return this.error !== ''
}
get isEmpty() {
return this.hasLoaded && !this.hasContent
}
get unconfirmed() {
return this.sceneAssertionsView.unconfirmed
}
// public api
// =
async setup() {
await this._fetch(false)
}
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 {
// TODO need to fetch all!
await this.sceneAssertionsView.setup()
} catch (e) {
console.error(e)
this._xIdle(
'Failed to fetch the current scene members. Check your internet connection and try again.',
)
return
}
try {
await this.myFollowsView.setup()
} catch (e) {
console.error(e)
this._xIdle(
'Failed to fetch the your current followers. Check your internet connection and try again.',
)
return
}
// collect all followed users that arent already in the scene
const newSuggestions: FollowItem[] = []
for (const follow of this.myFollowsView.follows) {
if (follow.declaration.actorType !== APP_BSKY_SYSTEM.ActorUser) {
continue
}
if (!this.sceneAssertionsView.getBySubject(follow.did)) {
newSuggestions.push(follow)
}
}
runInAction(() => {
this.suggestions = newSuggestions
})
this._xIdle()
}
}