import type { UserNote, UserNotesResponse } from "@/shared/api/socialTypes";
import { KIND_REPO_ANNOUNCEMENT } from "@/shared/constants/kinds";

const REPO_ADDRESS_PREFIX = `${KIND_REPO_ANNOUNCEMENT}:`;

/**
 * Project issue/PR comments are published as kind:1 text notes (the relay
 * does not register NIP-22 kind 1111) tagged with the repo's NIP-34 address
 * (`a` = `30617:<owner>:<repo>`). Without this filter they bleed into Pulse
 * feeds as orphaned replies whose parent (a 1618/1621 git event, not a
 * kind:1 note) can never be resolved.
 */
export function isProjectComment(note: UserNote): boolean {
  return note.tags.some(
    (tag) =>
      tag[0] === "a" && (tag[1]?.startsWith(REPO_ADDRESS_PREFIX) ?? false),
  );
}

/** Strip project issue/PR comments from a notes feed response. */
export function withoutProjectComments(
  response: UserNotesResponse,
): UserNotesResponse {
  return {
    ...response,
    notes: response.notes.filter((note) => !isProjectComment(note)),
  };
}