feat: polls (#451)

Co-authored-by: silberengel <silberengel7@protonmail.com>

src/services/post-editor-cache.service.ts

@@ -0,0 +1,75 @@
+import { TPollCreateData } from '@/types'
+import { Content } from '@tiptap/react'
+import { Event } from 'nostr-tools'
+
+type TPostSettings = {
+  isNsfw?: boolean
+  isPoll?: boolean
+  pollCreateData?: TPollCreateData
+  specifiedRelayUrls?: string[]
+  addClientTag?: boolean
+}
+
+class PostEditorCacheService {
+  static instance: PostEditorCacheService
+
+  private postContentCache: Map<string, Content> = new Map()
+  private postSettingsCache: Map<string, TPostSettings> = new Map()
+
+  constructor() {
+    if (!PostEditorCacheService.instance) {
+      PostEditorCacheService.instance = this
+    }
+    return PostEditorCacheService.instance
+  }
+
+  getPostContentCache({
+    defaultContent,
+    parentEvent
+  }: { defaultContent?: string; parentEvent?: Event } = {}) {
+    return (
+      this.postContentCache.get(this.generateCacheKey(defaultContent, parentEvent)) ??
+      defaultContent
+    )
+  }
+
+  setPostContentCache(
+    { defaultContent, parentEvent }: { defaultContent?: string; parentEvent?: Event },
+    content: Content
+  ) {
+    this.postContentCache.set(this.generateCacheKey(defaultContent, parentEvent), content)
+  }
+
+  getPostSettingsCache({
+    defaultContent,
+    parentEvent
+  }: { defaultContent?: string; parentEvent?: Event } = {}): TPostSettings | undefined {
+    return this.postSettingsCache.get(this.generateCacheKey(defaultContent, parentEvent))
+  }
+
+  setPostSettingsCache(
+    { defaultContent, parentEvent }: { defaultContent?: string; parentEvent?: Event },
+    settings: TPostSettings
+  ) {
+    this.postSettingsCache.set(this.generateCacheKey(defaultContent, parentEvent), settings)
+  }
+
+  clearPostCache({
+    defaultContent,
+    parentEvent
+  }: {
+    defaultContent?: string
+    parentEvent?: Event
+  }) {
+    const cacheKey = this.generateCacheKey(defaultContent, parentEvent)
+    this.postContentCache.delete(cacheKey)
+    this.postSettingsCache.delete(cacheKey)
+  }
+
+  generateCacheKey(defaultContent: string = '', parentEvent?: Event): string {
+    return parentEvent ? parentEvent.id : defaultContent
+  }
+}
+
+const instance = new PostEditorCacheService()
+export default instance