Handle pending invites correctly

src/state/models/get-assertions-view.ts

@@ -0,0 +1,121 @@
+import {makeAutoObservable} from 'mobx'
+import * as GetAssertions from '../../third-party/api/src/client/types/app/bsky/graph/getAssertions'
+import {RootStoreModel} from './root-store'
+
+type ResponseAssertion = GetAssertions.OutputSchema['assertions'][number]
+export type Assertion = ResponseAssertion & {
+  _reactKey: string
+}
+
+export class GetAssertionsView {
+  // state
+  isLoading = false
+  isRefreshing = false
+  hasLoaded = false
+  error = ''
+  params: GetAssertions.QueryParams
+
+  // data
+  assertions: Assertion[] = []
+
+  constructor(
+    public rootStore: RootStoreModel,
+    params: GetAssertions.QueryParams,
+  ) {
+    makeAutoObservable(
+      this,
+      {
+        rootStore: false,
+        params: false,
+      },
+      {autoBind: true},
+    )
+    this.params = params
+  }
+
+  get hasContent() {
+    return this.assertions.length > 0
+  }
+
+  get hasError() {
+    return this.error !== ''
+  }
+
+  get isEmpty() {
+    return this.hasLoaded && !this.hasContent
+  }
+
+  getBySubject(did: string) {
+    return this.assertions.find(assertion => assertion.subject.did === did)
+  }
+
+  get confirmed() {
+    return this.assertions.filter(assertion => !!assertion.confirmation)
+  }
+
+  get unconfirmed() {
+    return this.assertions.filter(assertion => !assertion.confirmation)
+  }
+
+  // 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.graph.getAssertions(
+        this.params,
+      )
+      this._replaceAll(res)
+      this._xIdle()
+    } catch (e: any) {
+      this._xIdle(e.toString())
+    }
+  }
+
+  private _replaceAll(res: GetAssertions.Response) {
+    this.assertions.length = 0
+    let counter = 0
+    for (const item of res.data.assertions) {
+      this._append({
+        _reactKey: `item-${counter++}`,
+        ...item,
+      })
+    }
+  }
+
+  private _append(item: Assertion) {
+    this.assertions.push(item)
+  }
+}