Add notifications view

src/state/models/post.ts

@@ -0,0 +1,93 @@
+import {makeAutoObservable} from 'mobx'
+import {bsky, AdxUri} from '@adxp/mock-api'
+import {RootStoreModel} from './root-store'
+
+export type PostEntities = bsky.Post.Record['entities']
+export type PostReply = bsky.Post.Record['reply']
+export class PostModel implements bsky.Post.Record {
+  // state
+  isLoading = false
+  hasLoaded = false
+  error = ''
+  uri: string = ''
+
+  // data
+  text: string = ''
+  entities?: PostEntities
+  reply?: PostReply
+  createdAt: string = ''
+
+  constructor(public rootStore: RootStoreModel, uri: string) {
+    makeAutoObservable(
+      this,
+      {
+        rootStore: false,
+        uri: false,
+      },
+      {autoBind: true},
+    )
+    this.uri = uri
+  }
+
+  get hasContent() {
+    return this.createdAt !== ''
+  }
+
+  get hasError() {
+    return this.error !== ''
+  }
+
+  get isEmpty() {
+    return this.hasLoaded && !this.hasContent
+  }
+
+  // public api
+  // =
+
+  async setup() {
+    await this._load()
+  }
+
+  // state transitions
+  // =
+
+  private _xLoading() {
+    this.isLoading = true
+    this.error = ''
+  }
+
+  private _xIdle(err: string = '') {
+    this.isLoading = false
+    this.hasLoaded = true
+    this.error = err
+  }
+
+  // loader functions
+  // =
+
+  private async _load() {
+    this._xLoading()
+    await new Promise(r => setTimeout(r, 250)) // DEBUG
+    try {
+      const urip = new AdxUri(this.uri)
+      const res = await this.rootStore.api.mainPds
+        .repo(urip.host, false)
+        .collection(urip.collection)
+        .get('Post', urip.recordKey)
+      if (!res.valid) {
+        throw new Error(res.error)
+      }
+      this._replaceAll(res.value)
+      this._xIdle()
+    } catch (e: any) {
+      this._xIdle(`Failed to load post: ${e.toString()}`)
+    }
+  }
+
+  private _replaceAll(res: bsky.Post.Record) {
+    this.text = res.text
+    this.entities = res.entities
+    this.reply = res.reply
+    this.createdAt = res.createdAt
+  }
+}