using UnityEngine;

public class ShoseClickHandler : MonoBehaviour
{
    private MeshRenderer _outlineMesh;
    private float _lastClickTime;
    private bool _isFinished;
    
    public bool CanBeClicked() { return !_isFinished; }

    void OnEnable()
    {
        // 确保有大号 BoxCollider，且千万不要 Destroy，以防出现 Unity 抛异常
        var col = GetComponent<Collider>();
        if (col == null) 
        {
            var bc = gameObject.AddComponent<BoxCollider>();
            bc.size = new Vector3(0.5f, 0.5f, 0.5f);
        }

        foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = false;
        CreateOutlineMesh();
        _isFinished = false;
        StopAllCoroutines();
        StartCoroutine(BlinkOutline());
    }

    private Mesh GetMesh()
    {
        var mf = GetComponent<MeshFilter>();
        if (mf == null) mf = GetComponentInChildren<MeshFilter>();
        if (mf != null && mf.sharedMesh != null) return mf.sharedMesh;
        
        var smr = GetComponent<SkinnedMeshRenderer>();
        if (smr == null) smr = GetComponentInChildren<SkinnedMeshRenderer>();
        if (smr != null && smr.sharedMesh != null) return smr.sharedMesh;
        
        return null;
    }

    void CreateOutlineMesh()
    {
        if (_outlineMesh != null) return;
        Mesh mesh = GetMesh();
        if (mesh == 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", OutlineConfig.Width);
        var go = new GameObject("Outline");
        go.transform.SetParent(transform, false);
        go.AddComponent<MeshFilter>().sharedMesh = mesh;
        _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()
    {
        PerformClick();
    }

    public void PerformClick()
    {
        if (Time.time - _lastClickTime < 0.3f) return;
        _lastClickTime = Time.time;
        if (_isFinished) return;
        
        Debug.Log($"[ShoseClick] {name} 被点击");
        ActionHistory.Push(ActionHistory.ActionType.Shose, this);
        _isFinished = true;
        StopAllCoroutines();
        if (_outlineMesh != null) _outlineMesh.enabled = false;
        
        // 显示模型自身
        var mr = GetComponent<MeshRenderer>(); if (mr != null) mr.enabled = true;
        var smr = GetComponent<SkinnedMeshRenderer>(); if (smr != null) smr.enabled = true;
        foreach (var r in GetComponentsInChildren<Renderer>(true)) { if (_outlineMesh != null && r == _outlineMesh) continue; r.enabled = true; }
        
        // 隐藏鞋子后，激活 ping 序列的第一个 ping.004（反向逻辑中的第一步）
        // 之前的逻辑是寻找 ping.004
        var ping004 = GameObject.Find("ping.004");
        if (ping004 == null)
        {
            var mi = GameObject.Find("manInjury");
            if (mi != null)
            {
                var t = mi.transform.Find("ping.004");
                if (t != null) ping004 = t.gameObject;
            }
        }
        if (ping004 != null) ping004.SetActive(true);
        else Debug.LogWarning("[ShoseClick] 没找到 ping.004！");

        var uiMgr = FindObjectOfType<UIManager>();
        if (uiMgr != null)
        {
            uiMgr.ShowVideo();
        }

        var sm = FindObjectOfType<StepManager>();
        if (sm != null) sm.RecordShoseStep();
    }

    public void ResetState()
    {
        _isFinished = false;
        var mr = GetComponent<MeshRenderer>(); if (mr != null) mr.enabled = false;
        var smr = GetComponent<SkinnedMeshRenderer>(); if (smr != null) smr.enabled = false;
        foreach (var r in GetComponentsInChildren<Renderer>(true)) { if (_outlineMesh != null && r == _outlineMesh) continue; r.enabled = false; }
        if (_outlineMesh != null) _outlineMesh.enabled = true;

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