using UnityEngine;

/// <summary>
/// Shose 鞋子交互：shader 模型描边闪烁，点击后显示模型+移动到ShosePoint
/// </summary>
public class ShoseClickHandler : MonoBehaviour
{
    public GameObject nextObject;
    public Transform targetPoint;

    private MeshRenderer _modelRenderer;
    private MeshRenderer _outlineMesh;

    void OnEnable()
    {
        _modelRenderer = GetComponent<MeshRenderer>();
        if (_modelRenderer != null) _modelRenderer.enabled = false;

        CreateOutlineMesh();
        StopAllCoroutines();
        StartCoroutine(BlinkOutline());
    }

    void CreateOutlineMesh()
    {
        if (_outlineMesh != null) return;
        var mf = GetComponent<MeshFilter>();
        if (mf == null || mf.sharedMesh == null) return;

        var mat = new Material(Shader.Find("Custom/OutlineUnlit"));
        mat.SetColor("_OutlineColor", new Color(0.2f, 0.5f, 1f, 1f));
        mat.SetColor("_MainColor", new Color(0, 0, 0, 0));
        mat.SetFloat("_OutlineWidth", 0.03f);

        var go = new GameObject("Outline");
        go.transform.SetParent(transform, false);
        var omf = go.AddComponent<MeshFilter>();
        omf.sharedMesh = mf.sharedMesh;
        _outlineMesh = go.AddComponent<MeshRenderer>();
        _outlineMesh.material = mat;
    }

    System.Collections.IEnumerator BlinkOutline()
    {
        if (_outlineMesh != null) _outlineMesh.enabled = true;
        yield return new WaitForSeconds(0.4f);
        while (true)
        {
            if (_outlineMesh != null) _outlineMesh.enabled = !_outlineMesh.enabled;
            yield return new WaitForSeconds(0.4f);
        }
    }

    void OnMouseDown()
    {
        StopAllCoroutines();
        if (_modelRenderer != null) _modelRenderer.enabled = true;
        if (_outlineMesh != null) _outlineMesh.enabled = false;

        if (targetPoint != null)
        {
            transform.position = targetPoint.position;
            transform.rotation = targetPoint.rotation;
        }

        if (nextObject != null) nextObject.SetActive(true);
        Debug.Log($"[ShoseClick] 已移动到{targetPoint?.name}, {nextObject?.name} 已激活");
    }
}