feat: add try-delete post option

src/providers/DeletedEventProvider.tsx

@@ -0,0 +1,43 @@
+import { getReplaceableCoordinateFromEvent, isReplaceableEvent } from '@/lib/event'
+import { NostrEvent } from 'nostr-tools'
+import { createContext, useCallback, useContext, useState } from 'react'
+
+type TDeletedEventContext = {
+  addDeletedEvent: (event: NostrEvent) => void
+  isEventDeleted: (event: NostrEvent) => boolean
+}
+
+const DeletedEventContext = createContext<TDeletedEventContext | undefined>(undefined)
+
+export const useDeletedEvent = () => {
+  const context = useContext(DeletedEventContext)
+  if (!context) {
+    throw new Error('useDeletedEvent must be used within a DeletedEventProvider')
+  }
+  return context
+}
+
+export function DeletedEventProvider({ children }: { children: React.ReactNode }) {
+  const [deletedEventKeys, setDeletedEventKeys] = useState<Set<string>>(new Set())
+
+  const isEventDeleted = useCallback(
+    (event: NostrEvent) => {
+      return deletedEventKeys.has(getKey(event))
+    },
+    [deletedEventKeys]
+  )
+
+  const addDeletedEvent = (event: NostrEvent) => {
+    setDeletedEventKeys((prev) => new Set(prev).add(getKey(event)))
+  }
+
+  return (
+    <DeletedEventContext.Provider value={{ addDeletedEvent, isEventDeleted }}>
+      {children}
+    </DeletedEventContext.Provider>
+  )
+}
+
+function getKey(event: NostrEvent) {
+  return isReplaceableEvent(event.kind) ? getReplaceableCoordinateFromEvent(event) : event.id
+}