using UnityEngine;

public class ShoseClickHandler : MonoBehaviour
{
    public GameObject nextObject;
    public Transform targetPoint;
    private MeshRenderer _outlineMesh;
    private Bounds _meshBounds;
    private bool _clicked;

    void Start()
    {
        // 用模型的精确 Bounds 设 BoxCollider
        var mf = GetComponent<MeshFilter>();
        if (mf == null) mf = GetComponentInChildren<MeshFilter>();
        if (mf != null && mf.sharedMesh != null)
        {
            _meshBounds = mf.sharedMesh.bounds;
            var col = GetComponent<BoxCollider>();
            if (col == null) col = gameObject.AddComponent<BoxCollider>();
            // 移除旧 SphereCollider
            var oldCol = GetComponent<SphereCollider>();
            if (oldCol != null) Destroy(oldCol);
            col.center = _meshBounds.center;
            col.size = _meshBounds.size * 1.2f; // 稍微扩大一点好点
            col.enabled = true;
            Debug.Log($"[ShoseClick] BoxCollider center={col.center} size={col.size} bounds={_meshBounds}");
        }
        else
        {
            // fallback
            var col = gameObject.AddComponent<SphereCollider>();
            col.radius = 3f;
            col.enabled = true;
            Debug.LogWarning("[ShoseClick] 无MeshFilter，用SphereCollider fallback");
        }

        CreateOutlineMesh();
        StartCoroutine(BlinkOutline());
        Debug.Log($"[ShoseClick] Start done. obj={gameObject.name} pos={transform.position} scale={transform.lossyScale}");
    }

    void CreateOutlineMesh()
    {
        if (_outlineMesh != null) return;
        var mf = GetComponent<MeshFilter>();
        if (mf == null) mf = GetComponentInChildren<MeshFilter>();
        if (mf == null || mf.sharedMesh == null) return;
        var shader = Shader.Find("Custom/OutlineUnlit");
        if (shader == null) return;
        var mat = new Material(shader);
        mat.SetColor("_OutlineColor", new Color(0.2f, 0.5f, 1f, 1f));
        mat.SetColor("_MainColor", new Color(0, 0, 0, 0));
        mat.SetFloat("_OutlineWidth", 0.1f);
        var go = new GameObject("Outline");
        go.transform.SetParent(transform, false);
        go.AddComponent<MeshFilter>().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()
    {
        Debug.Log($"[ShoseClick] OnMouseDown fired! clicked={_clicked} mousePos={Input.mousePosition}");
        if (_clicked) return;
        _clicked = true;
        Debug.Log("[ShoseClick] ★ 模型被点击了! ★");
        StopAllCoroutines();
        if (_outlineMesh != null) _outlineMesh.enabled = false;
        if (targetPoint != null) { transform.position = targetPoint.position; transform.rotation = targetPoint.rotation; Debug.Log($"[ShoseClick] 移动到 {targetPoint.name} pos={targetPoint.position}"); }
        if (nextObject != null) nextObject.SetActive(true);
    }

#if UNITY_EDITOR
    void OnDrawGizmos()
    {
        var col = GetComponent<BoxCollider>();
        if (col != null)
        {
            Gizmos.color = Color.green;
            Gizmos.matrix = transform.localToWorldMatrix;
            Gizmos.DrawWireCube(col.center, col.size);
        }
        else
        {
            var sc = GetComponent<SphereCollider>();
            if (sc != null)
            {
                Gizmos.color = Color.green;
                Gizmos.DrawWireSphere(transform.position, sc.radius);
            }
        }
    }
#endif
}