using System.Collections.Generic;
using A2W;
using Unity.Cinemachine;
using UnityEngine;
using UnityEngine.InputSystem;

public class MusicGame : SceneSingleton<MusicGame>
{
    public MusicData musicData;
    private bool isPlaying = false;
    public Camera mainCamera;
    private int tickId = 0;
    private int noteId = 0;

    public Vector3 judgeLine;
    private List<GameObject> tickNote = new List<GameObject>();
    double startDsp;

    void Start()
    {
        mainCamera = Camera.main;

    }

    void Update()
    {
        // if (Keyboard.current.qKey.wasPressedThisFrame) Play();
    }

    public void Play()
    {
        mainCamera.transform.position = new Vector3(0, 100, -10);
        mainCamera.transform.rotation = Quaternion.Euler(new Vector3(0, 0, 0));
        mainCamera.GetComponent<CinemachineBrain>().enabled = false;
        isPlaying = true;
        judgeLine = mainCamera.transform.position + new Vector3(0, -2f, 8);
        startDsp = AudioSettings.dspTime; // 音频原点
        gameObject.GetComponent<AudioSource>().Play();
        tickNote.ForEach(x => Destroy(x));
        tickNote.Clear();
        foreach (MusicTick tick in musicData.musicTicks)
            ActivateTick(tick);
    }

    private void ActivateTick(MusicTick tick)
    {
        // 清除旧音符
        // tickNote.ForEach(x => Destroy(x));
        // tickNote.Clear();

        // double startDsp = AudioSettings.dspTime; // 音频原点

        for (int i = 0; i < tick.array.Length; i++)
        {
            if (tick.array[i] != null)
            {
                GameObject obj = Instantiate(tick.array[i], GetSpawnPosition(i), Quaternion.identity);
                Note note = obj.GetComponent<Note>();
                note.beatTime = startDsp + tick.times[i]; // 直接给绝对时刻
                note.Uid = i;
                tickNote.Add(obj);
            }
        }
        // 不排队、不LaunchNext，每个音符自己到点动
    }

    Vector3 GetSpawnPosition(int index)
    {
        return mainCamera.transform.position + new Vector3(-2 + index * 1.5f, 6, 8);
    }

    public void onNoteHit(int uid)
    {
        if (!isPlaying) return;
        noteId++;
        // 顺序判定仍保留，只用于得分
        if (uid != -1 && musicData.musicTicks[tickId].array[noteId].GetComponent<Note>().Uid == uid)
        {

            Debug.Log($"击中正确按键: {uid}");
        }
        if (noteId >= musicData.musicTicks[tickId].array.Length) FinshTick();
    }

    public void FinshTick()
    {
        Debug.Log($"完成tick: {tickId}");
        tickId++;
        noteId = 0;
        if (tickId < musicData.musicTicks.Count)
        {
        }
        // ActivateTick(musicData.musicTicks[tickId]);
        else
        {
            isPlaying = false;
            tickId = 0;
            noteId = 0;
            mainCamera.GetComponent<CinemachineBrain>().enabled = true;
            Debug.Log("完成所有tick");
            GameFlowMgr.instance.completeLevel(0);
        }
    }
}