up

electron/online.test.ts

@@ -1445,6 +1445,10 @@ test('редактор музыки: CRUD, native MP3, порядок, вали
     f.online.state.playlists[0]!.tracks.map((t) => t.id),
     [2, 1],
   )
+  const conflict = f.online.state.error
+  f.model.playlistError = 0
+  await f.online.act({ action: 'playlists' })
+  assert.equal(f.online.state.error, conflict, 'background refresh preserves the action error')
   f.model.playlistError = 403
   await assert.rejects(f.online.act({ action: 'playlist-create', name: 'Нет прав' }), /Нет доступа/)
 })

electron/online.ts

@@ -1096,14 +1096,18 @@ export class Online {
       return this.snapshot()
     }
     if (this.busy) throw new Error('Подождите завершения текущего действия')
+    const isBackgroundRefresh = data.action === 'playlists'
     this.state.busy = true
-    this.state.error = ''
-    this.state.notice = ''
+    if (!isBackgroundRefresh) {
+      this.state.error = ''
+      this.state.notice = ''
+    }
     try {
       await this.perform(data)
     } catch (error) {
-      this.state.error = error instanceof Error ? error.message : 'Действие не выполнено'
-      throw new Error(this.state.error)
+      const message = error instanceof Error ? error.message : 'Действие не выполнено'
+      if (!isBackgroundRefresh || !this.state.error) this.state.error = message
+      throw new Error(message)
     } finally {
       this.state.busy = false
       this.state.progress = null

electron/playback-control.test.ts

@@ -0,0 +1,17 @@
+import assert from 'node:assert/strict'
+import { test } from 'node:test'
+import { playbackControl } from '../src/utils/playbackControl.js'
+import type { ChannelState } from '../src/types/screen.js'
+
+for (const [desired, status, action, label] of [
+  ['stopped', 'stopped', 'play', 'Запуск'],
+  ['playing', 'playing', 'pause', 'Пауза'],
+  ['playing', 'pending', 'pause', 'Пауза'],
+  ['paused', 'paused', 'resume', 'Продолжить'],
+  ['playing', 'error', 'play', 'Запуск'],
+  ['playing', 'ended', 'play', 'Запуск'],
+] satisfies [ChannelState['desired'], ChannelState['status'], string, string][]) {
+  test(`кнопка проигрывателя ${desired}/${status}: ${action}`, () => {
+    assert.deepEqual(playbackControl({ desired, status }), { action, label })
+  })
+}