using UnityEngine;

/// <summary>
/// 挂在 touchArray 的每个子球体上，点击时把 woman 移动到 womanPointArray 对应位置。
/// 两个交叉圆环形成球形轮廓闪烁提示。
/// </summary>
public class TouchPositionHandler : MonoBehaviour
{
    public Transform targetPosition;
    public GameObject womanObject;
    public GameObject nextTouchObject;

    private LineRenderer _ringH; // 水平环
    private LineRenderer _ringV; // 垂直环

    private void Start()
    {
        var mr = GetComponent<MeshRenderer>();
        if (mr != null) mr.enabled = false;

        CreateCrossRings();
        StartCoroutine(BlinkRings());
    }

    private void CreateCrossRings()
    {
        float r = 0.15f;
        int segs = 32;
        float yOff = 0.05f;
        Color blue = new Color(0.2f, 0.5f, 1f);

        // 水平环 —— 世界空间 XZ 平面
        var hGo = new GameObject("RingH");
        hGo.transform.SetParent(transform, false);
        _ringH = hGo.AddComponent<LineRenderer>();
        SetupRing(_ringH, blue);
        _ringH.useWorldSpace = true;
        _ringH.positionCount = segs;
        Vector3 center = transform.position + Vector3.up * yOff;
        for (int i = 0; i < segs; i++)
        {
            float a = i * 2f * Mathf.PI / segs;
            _ringH.SetPosition(i, center + new Vector3(Mathf.Cos(a) * r, 0, Mathf.Sin(a) * r));
        }

        // 垂直环 —— 世界空间 XY 平面（竖起来）
        var vGo = new GameObject("RingV");
        vGo.transform.SetParent(transform, false);
        _ringV = vGo.AddComponent<LineRenderer>();
        SetupRing(_ringV, blue);
        _ringV.useWorldSpace = true;
        _ringV.positionCount = segs;
        for (int i = 0; i < segs; i++)
        {
            float a = i * 2f * Mathf.PI / segs;
            _ringV.SetPosition(i, center + new Vector3(Mathf.Cos(a) * r, Mathf.Sin(a) * r, 0));
        }

        Debug.Log($"[TouchPosition] {name}: 交叉蓝环已创建 (r={r})");
    }

    private void SetupRing(LineRenderer lr, Color c)
    {
        lr.loop = true;
        lr.startWidth = 0.06f;
        lr.endWidth = 0.06f;
        lr.material = new Material(Shader.Find("Unlit/Color"));
        lr.material.color = c;
        lr.startColor = c;
        lr.endColor = c;
    }

    private System.Collections.IEnumerator BlinkRings()
    {
        while (true)
        {
            bool on = !_ringH.enabled;
            if (_ringH != null) _ringH.enabled = on;
            if (_ringV != null) _ringV.enabled = on;
            yield return new WaitForSeconds(0.4f);
        }
    }

    private void OnMouseDown()
    {
        Debug.Log($"[TouchPosition] {name}: 被点击");

        if (womanObject != null && targetPosition != null)
        {
            womanObject.transform.position = targetPosition.position;
            womanObject.transform.rotation = targetPosition.rotation;
            Debug.Log($"[TouchPosition] woman 移动到 {targetPosition.name}");
        }
        else
        {
            Debug.LogWarning($"[TouchPosition] {name}: 引用为空");
        }

        StopAllCoroutines();
        if (_ringH != null) _ringH.enabled = false;
        if (_ringV != null) _ringV.enabled = false;

        gameObject.SetActive(false);
        if (nextTouchObject != null)
        {
            nextTouchObject.SetActive(true);
            Debug.Log($"[TouchPosition] {name} → {nextTouchObject.name} 显示");
        }
    }
}