// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import type { Post } from './posts';
import type { Team } from './teams';
import type { Channel } from './channels';
import type { UserProfile } from './users';
import type { $ID, IDMappedObjects, RelationOneToMany, RelationOneToOne } from './utilities';

export type UserThread = {
  id: string;
  reply_count: number;
  last_reply_at: number;
  last_viewed_at: number;
  participants: Array<{ id: $ID<UserProfile> } | UserProfile>;
  unread_replies: number;
  unread_mentions: number;
  is_following?: boolean;

  // TODO consider flattening, removing post from UserThreads in-store
  /**
   * only depend on channel_id and user_id for UserThread<>Channel/User mapping,
   * use normalized post store/selectors as those are kept up-to-date in the store
   */
  post: {
    channel_id: $ID<Channel>;
    user_id: $ID<UserProfile>;
  };
};

export type UserThreadWithPost = UserThread & { post: Post };

export type UserThreadList = {
  total: number;
  total_unread_threads: number;
  total_unread_mentions: number;
  threads: UserThreadWithPost[];
};

export type ThreadsState = {
  threadsInTeam: RelationOneToMany<Team, UserThread>;
  threads: IDMappedObjects<UserThread>;
  counts: RelationOneToOne<
    Team,
    {
      total: number;
      total_unread_threads: number;
      total_unread_mentions: number;
      unread_mentions_per_channel: Record<$ID<Channel>, number>;
    }
  >;
};