import { APIClient } from "../ApiClient";
import type { UserInfo } from "../AuthApi";
import type { MatrixEvent } from "./MatrixApiEvent";
import type { UsersMap } from "./MatrixApiProfile";

export interface Room {
  id: string;
  name?: string;
  members: string[];
  avatar?: string;
  is_space?: boolean;
  parents: string[];
  number_unread_messages: number;
  latest_event?: MatrixEvent;
}

/**
 * Find main member of room
 */
export function mainRoomMember(user: UserInfo, r: Room): string | undefined {
  if (r.members.length <= 1) return r.members[0];

  if (r.members.length < 2)
    return r.members[0] == user.matrix_user_id ? r.members[1] : r.members[0];

  return undefined;
}

/**
 * Find room name
 */
export function roomName(user: UserInfo, r: Room, users: UsersMap): string {
  if (r.name) return r.name;

  const name = r.members
    .filter((m) => m !== user.matrix_user_id)
    .map((m) => users.get(m)?.display_name ?? m)
    .join(",");

  return name === "" ? "Empty room" : name;
}

export class MatrixApiRoom {
  /**
   * Get the list of joined rooms
   */
  static async ListJoined(): Promise<Room[]> {
    return (
      await APIClient.exec({
        method: "GET",
        uri: "/matrix/room/joined",
      })
    ).data;
  }
}