import { PlayerModel } from "@ssr/common/model/player";
import { AppStatistics } from "@ssr/common/types/backend/app-statistics";
import { ScoreSaberScoreModel } from "@ssr/common/model/score/impl/scoresaber-score";
import { AdditionalScoreDataModel } from "@ssr/common/model/additional-score-data/additional-score-data";
import { BeatSaverMapModel } from "@ssr/common/model/beatsaver/map";
import { ScoreSaberLeaderboardModel } from "@ssr/common/model/leaderboard/impl/scoresaber-leaderboard";
import { SSRCache } from "@ssr/common/cache";

const statisticsCache = new SSRCache({
  ttl: 120 * 1000, // 2 minutes
});

export class AppService {
  /**
   * Gets the app statistics.
   */
  public static async getAppStatistics(): Promise<AppStatistics> {
    if (statisticsCache.has("app-statistics")) {
      return statisticsCache.get<AppStatistics>("app-statistics")!;
    }

    const trackedPlayers = await PlayerModel.countDocuments();
    const trackedScores = await ScoreSaberScoreModel.countDocuments();
    const additionalScoresData = await AdditionalScoreDataModel.countDocuments();
    const cachedBeatSaverMaps = await BeatSaverMapModel.countDocuments();
    const cachedScoreSaberLeaderboards = await ScoreSaberLeaderboardModel.countDocuments();

    const response = {
      trackedPlayers,
      trackedScores,
      additionalScoresData,
      cachedBeatSaverMaps,
      cachedScoreSaberLeaderboards,
    };
    statisticsCache.set("app-statistics", response);
    return response;
  }
}