"use server";
import { getAuth } from "@/auth/queries/getauth";
import { supportedVersionNumber } from "@/lib/helpers";
import { artemis } from "@/lib/prisma";

export async function getUserRatingBaseList() {
  const { user } = await getAuth();

  if (!user || !user.accessCode) {
    throw new Error("User is not authenticated or accessCode is missing");
  }

  try {
    const userRatingBaseList = await artemis.chuni_profile_rating.findMany({
      where: {
        user: user.UserId,
        type: "userRatingBaseList",
        version: supportedVersionNumber,
      },
      select: {
        musicId: true,
        score: true,
        difficultId: true,
        romVersionCode: true,
        version: true,
        index: true,
      },
    });

    const baseListMusicIds = userRatingBaseList.map((entry) => entry.musicId!);

    const staticMusicInfo = await artemis.chuni_static_music.findMany({
      where: {
        songId: {
          in: baseListMusicIds,
        },
        version: supportedVersionNumber,
      },
      select: {
        songId: true,
        title: true,
        artist: true,
        chartId: true,
        level: true,
        genre: true,
        worldsEndTag: true,
        jacketPath: true,
      },
    });

    // Map to join `musicId` and `difficultId` with static music info
    // i hate it
    const profileRatingToStaticMusic = new Map<
      string,
      (typeof staticMusicInfo)[0]
    >(staticMusicInfo.map((info) => [`${info.songId}-${info.chartId}`, info]));

    const songsWithTitles = userRatingBaseList.map((ratingListSong) => {
      const MusicIdtoDiffId = `${ratingListSong.musicId}-${ratingListSong.difficultId}`;
      const songInfo = profileRatingToStaticMusic.get(MusicIdtoDiffId);

      const level = songInfo?.level ?? 0;
      const score = ratingListSong.score ?? 0;

      // Rating Formula
      let rating = 0;

      if (score >= 1009000) {
        rating = level * 100 + 215;
      } else if (score >= 1007500) {
        rating = level * 100 + 200 + (score - 1007500) / 100;
      } else if (score >= 1005000) {
        rating = level * 100 + 150 + (score - 1005000) / 50;
      } else if (score >= 1000000) {
        rating = level * 100 + 100 + (score - 1000000) / 100;
      } else if (score >= 975000) {
        rating = level * 100 + (score - 975000) / 250;
      } else if (score >= 925000) {
        rating = level * 100 - 300 + ((score - 925000) * 3) / 500;
      } else if (score >= 900000) {
        rating = level * 100 - 500 + ((score - 900000) * 4) / 500;
      } else if (score >= 800000) {
        rating =
          (level * 100 - 500) / 2 +
          ((score - 800000) * ((level - 500) / 2)) / 100000;
      }

      return {
        ...ratingListSong,
        title: songInfo?.title || "Unknown Title",
        artist: songInfo?.artist || "Unknown Artist",
        genre: songInfo?.genre || "Unknown Genre",
        chartId: songInfo?.chartId || "Unknown chartId",
        level: songInfo?.level || "Unknown Level",
        jacketPath: songInfo?.jacketPath || "",
        rating,
      };
    });

    return songsWithTitles;
  } catch (error) {
    console.error("Error fetching songs with titles:", error);
    throw error;
  }
}