using UnityEngine;

public class Notes : MonoBehaviour
{
    public int trackIndex;  // 轨道索引
    public float hitTime;   // 该音符应该被击中的时间
    private bool canBeJudged = false;  // 是否进入判定区域
    private bool isHit = false;        // 是否已被击中

    private void Update()
    {
        // 只有进入判定区后，才允许自动miss
        if (canBeJudged && !isHit && Time.timeSinceLevelLoad > hitTime + 0.3f)
        {
            JudgeMiss();
        }
    }

    private void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("JudgmentLine"))
        {
            canBeJudged = true;
        }
    }

    private void OnTriggerExit2D(Collider2D other)
    {
        if (other.CompareTag("JudgmentLine"))
        {
            canBeJudged = false;
        }
    }

    public void JudgeNote()
    {
        if (!canBeJudged || isHit) return; // 仅在进入判定区后才能被判定

        float currentTime = Time.timeSinceLevelLoad;
        float timeDifference = Mathf.Abs(currentTime - hitTime);

        if (timeDifference <= 0.05f)
        {
            JudgePerfect();
        }
        else if (timeDifference <= 0.1f)
        {
            JudgeGreat();
        }
        else if (timeDifference <= 0.2f)
        {
            JudgeGood();
        }
        else if (timeDifference <= 0.3f)
        {
            JudgeMiss();
        }
    }

    private void Recycle()
    {
        // 如果存在 NotePool，优先归还池，否则销毁物体
        if (NotePool.Instance != null)
        {
            NotePool.Instance.ReturnNote(gameObject, "red"); // color 未保存时默认 red，建议上层调用时传入
        }
        else
        {
            Destroy(gameObject);
        }
    }

    private void JudgePerfect()
    {
        Debug.Log($"Track {trackIndex}: Perfect!");
        isHit = true;
        Recycle();
    }

    private void JudgeGreat()
    {
        Debug.Log($"Track {trackIndex}: Great!");
        isHit = true;
        Recycle();
    }

    private void JudgeGood()
    {
        Debug.Log($"Track {trackIndex}: Good!");
        isHit = true;
        Recycle();
    }

    private void JudgeMiss()
    {
        Debug.Log($"Track {trackIndex}: Miss!");
        isHit = true;
        Recycle();
    }
}