Paul Frazee
141 lines
2.9 KiB
TypeScript
141 lines
2.9 KiB
TypeScript
import {makeAutoObservable, runInAction} from 'mobx'
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import {AtUri} from '../../third-party/uri'
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import * as GetVotes from '../../third-party/api/src/client/types/app/bsky/feed/getVotes'
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import * as ActorRef from '../../third-party/api/src/client/types/app/bsky/actor/ref'
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import {RootStoreModel} from './root-store'
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export class VotesViewItemModel implements GetVotes.Vote {
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// ui state
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_reactKey: string = ''
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// data
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direction: 'up' | 'down' = 'up'
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indexedAt: string = ''
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createdAt: string = ''
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actor: ActorRef.WithInfo = {
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did: '',
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handle: '',
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declaration: {cid: '', actorType: ''},
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}
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constructor(reactKey: string, v: GetVotes.Vote) {
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makeAutoObservable(this)
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this._reactKey = reactKey
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Object.assign(this, v)
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}
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}
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export class VotesViewModel {
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// state
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isLoading = false
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isRefreshing = false
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hasLoaded = false
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error = ''
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resolvedUri = ''
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params: GetVotes.QueryParams
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// data
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uri: string = ''
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votes: VotesViewItemModel[] = []
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constructor(public rootStore: RootStoreModel, params: GetVotes.QueryParams) {
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makeAutoObservable(
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this,
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{
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rootStore: false,
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params: false,
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},
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{autoBind: true},
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)
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this.params = params
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}
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get hasContent() {
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return this.uri !== ''
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}
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get hasError() {
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return this.error !== ''
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}
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get isEmpty() {
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return this.hasLoaded && !this.hasContent
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}
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// public api
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// =
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async setup() {
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if (!this.resolvedUri) {
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await this._resolveUri()
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}
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await this._fetch()
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}
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async refresh() {
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await this._fetch(true)
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}
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async loadMore() {
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// TODO
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}
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// state transitions
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// =
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private _xLoading(isRefreshing = false) {
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this.isLoading = true
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this.isRefreshing = isRefreshing
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this.error = ''
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}
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private _xIdle(err: string = '') {
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this.isLoading = false
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this.isRefreshing = false
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this.hasLoaded = true
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this.error = err
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}
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// loader functions
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// =
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private async _resolveUri() {
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const urip = new AtUri(this.params.uri)
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if (!urip.host.startsWith('did:')) {
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try {
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urip.host = await this.rootStore.resolveName(urip.host)
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} catch (e: any) {
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this.error = e.toString()
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}
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}
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runInAction(() => {
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this.resolvedUri = urip.toString()
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})
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}
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private async _fetch(isRefreshing = false) {
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this._xLoading(isRefreshing)
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try {
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const res = await this.rootStore.api.app.bsky.feed.getVotes(
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Object.assign({}, this.params, {uri: this.resolvedUri}),
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)
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this._replaceAll(res)
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this._xIdle()
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} catch (e: any) {
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this._xIdle(`Failed to load feed: ${e.toString()}`)
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}
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}
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private _replaceAll(res: GetVotes.Response) {
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this.votes.length = 0
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let counter = 0
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for (const item of res.data.votes) {
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this._append(counter++, item)
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}
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}
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private _append(keyId: number, item: GetVotes.Vote) {
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this.votes.push(new VotesViewItemModel(`item-${keyId}`, item))
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}
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}
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