using UnityEngine;

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

    void OnEnable()
    {
        if (GetComponent<Collider>() == null) gameObject.AddComponent<SphereCollider>().radius = 0.5f;
        foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = false;        CreateOutlineMesh();
        _isFinished = false;
        StopAllCoroutines();
        StartCoroutine(BlinkOutline());
        Debug.Log($"[ChanraoTuibu] OnEnable outline={_outlineMesh!=null}");
    }

    void CreateOutlineMesh()
    {
        if (_outlineMesh != null) return;
        var mf = GetComponent<MeshFilter>();
        if (mf == null) mf = GetComponentInChildren<MeshFilter>();
        Mesh mesh = null;
        if (mf != null && mf.sharedMesh != null)
        {
            mesh = mf.sharedMesh;
        }
        else
        {
            var smr = GetComponent<SkinnedMeshRenderer>();
            if (smr == null) smr = GetComponentInChildren<SkinnedMeshRenderer>();
            if (smr != null && smr.sharedMesh != null)
                mesh = smr.sharedMesh;
        }
        if (mesh == null) { Debug.LogWarning("[ChanraoTuibu] 无Mesh数据"); return; }
        var shader = Shader.Find("Custom/OutlineUnlit");
        if (shader == null) { Debug.LogWarning("[ChanraoTuibu] Shader缺失"); 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; // 防止重复点击
        _lastClickTime = Time.time;
        if (_isFinished) return;
        
        Debug.Log($"[ChanraoTuibu] {name} 被点击");
        ActionHistory.Push(ActionHistory.ActionType.ChanraoTuibu, this);
        _isFinished = true;
        StopAllCoroutines();
        if (_outlineMesh != null) _outlineMesh.enabled = false;
        var mr = GetComponent<MeshRenderer>(); if (mr != null) mr.enabled = true;
        foreach (var r in GetComponentsInChildren<Renderer>(true)) { if (_outlineMesh != null && r == _outlineMesh) continue; r.enabled = true; } // 显示模型
        
        // 如果由于意外 nextObject 丢失了，手动把它指向 ping.004
        if (nextObject == null)
        {
            var mi = GameObject.Find("manInjury");
            if (mi != null)
            {
                var p004 = mi.transform.Find("ping.004");
                if (p004 != null) nextObject = p004.gameObject;
            }
        }
        
        // 激活下一个(ping.004)
        if (nextObject != null) { nextObject.SetActive(true); Debug.Log($"[ChanraoTuibu] → {nextObject.name}"); }
        else Debug.LogError("[ChanraoTuibu] 致命错误：nextObject 依然是 null！找不到 ping.004");
    }

    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;
        if (nextObject != null) { nextObject.SetActive(false); var p = nextObject.GetComponent<PingClickHandler>(); if (p != null) p.UndoShow(); }
        StopAllCoroutines();
        StartCoroutine(BlinkOutline());
    }
}