Reorganize state models for clarity (#378)

src/state/models/post.ts

@@ -1,103 +0,0 @@
-import {makeAutoObservable} from 'mobx'
-import {AppBskyFeedPost as Post} from '@atproto/api'
-import {AtUri} from '../../third-party/uri'
-import {RootStoreModel} from './root-store'
-import {cleanError} from 'lib/strings/errors'
-
-type RemoveIndex<T> = {
-  [P in keyof T as string extends P
-    ? never
-    : number extends P
-    ? never
-    : P]: T[P]
-}
-export class PostModel implements RemoveIndex<Post.Record> {
-  // state
-  isLoading = false
-  hasLoaded = false
-  error = ''
-  uri: string = ''
-
-  // data
-  text: string = ''
-  entities?: Post.Entity[]
-  reply?: Post.ReplyRef
-  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
-  // =
-
-  _xLoading() {
-    this.isLoading = true
-    this.error = ''
-  }
-
-  _xIdle(err?: any) {
-    this.isLoading = false
-    this.hasLoaded = true
-    this.error = cleanError(err)
-    if (err) {
-      this.rootStore.log.error('Failed to fetch post', err)
-    }
-  }
-
-  // loader functions
-  // =
-
-  async _load() {
-    this._xLoading()
-    try {
-      const urip = new AtUri(this.uri)
-      const res = await this.rootStore.agent.getPost({
-        repo: urip.host,
-        rkey: urip.rkey,
-      })
-      // TODO
-      // if (!res.valid) {
-      //   throw new Error(res.error)
-      // }
-      this._replaceAll(res.value)
-      this._xIdle()
-    } catch (e: any) {
-      this._xIdle(e)
-    }
-  }
-
-  _replaceAll(res: Post.Record) {
-    this.text = res.text
-    this.entities = res.entities
-    this.reply = res.reply
-    this.createdAt = res.createdAt
-  }
-}