#if UNITY_EDITOR
using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.SceneManagement;
using Object=UnityEngine.Object;

public static class BuildEnemyReview
{
    [Serializable] public sealed class Recipe {public string id,assetRoot,staticPrefab,enemyPrefab,visualPrefab,reviewScene,usage;public float attackImpact,height,reviewOriginX;}
    static Recipe Read(string path)
    {
        var r=JsonUtility.FromJson<Recipe>(File.ReadAllText(Path.GetFullPath(Path.Combine(Application.dataPath,"../..",path))));
        if(string.IsNullOrEmpty(r.visualPrefab))r.visualPrefab=r.enemyPrefab;
        if(r.reviewOriginX==0)r.reviewOriginX=20;
        return r;
    }
    static bool Companion(Recipe r)=>r.usage=="companion_visual";
    static string Prefix(Recipe r)=>Companion(r) ? "CompanionReview_"+r.id : "EnemyReview";
    static void Folder(string path)
    {
        string current="Assets";
        foreach(string part in path.Split('/').Skip(1)) {string next=current+"/"+part;if(!AssetDatabase.IsValidFolder(next))AssetDatabase.CreateFolder(current,part);current=next;}
    }
    public static string Publish(string recipePath="Config/Art/EnemyCharacters/RockBall.json")
    {
        var r=Read(recipePath);Folder(Path.GetDirectoryName(r.visualPrefab).Replace('\\','/'));
        var scene=EditorSceneManager.NewPreviewScene();
        try
        {
            var source=AssetDatabase.LoadAssetAtPath<GameObject>(r.assetRoot+"/"+r.id+"_Rigged.prefab");
            var go=(GameObject)PrefabUtility.InstantiatePrefab(source,scene);go.name=r.id+(Companion(r) ? "_Companion" : "_Enemy");
            var animator=go.GetComponentInChildren<Animator>();
            if(animator.runtimeAnimatorController.animationClips.Select(c=>c.name).Distinct().Count()!=3)throw new Exception("Three actions required before publishing character visual");
            PrefabUtility.SaveAsPrefabAsset(go,r.visualPrefab);
        }
        finally {EditorSceneManager.ClosePreviewScene(scene);}
        AssetDatabase.SaveAssets();return r.visualPrefab;
    }
    public static string Build(string recipePath="Config/Art/EnemyCharacters/RockBall.json")
    {
        if(EditorApplication.isPlaying)throw new Exception("Build in Edit Mode");
        var r=Read(recipePath);Publish(recipePath);
        var existing=SceneManager.GetSceneByPath(r.reviewScene);
        if(existing.IsValid() && existing.isLoaded)
        {
            if(existing.isDirty)throw new Exception("Existing character review has unsaved edits; preserve before rebuilding");
            EditorSceneManager.CloseScene(existing,true);
        }
        Folder(Path.GetDirectoryName(r.reviewScene).Replace('\\','/'));
        // Additive + a separate render layer preserves any user edits in other scenes.
        var scene=EditorSceneManager.NewScene(NewSceneSetup.EmptyScene,NewSceneMode.Additive);
        SceneManager.SetActiveScene(scene);
        var root=new GameObject((Companion(r) ? "CompanionProductionReview_" : "EnemyProductionReview_")+r.id);
        const int layer=29;
        const string floorPath="Assets/Bundles/Scenes/Review/EnemyReviewFloor.mat";
        var mat=AssetDatabase.LoadAssetAtPath<Material>(floorPath);
        if(mat==null){mat=new Material(Shader.Find("Universal Render Pipeline/Lit"));mat.color=new Color(.48f,.56f,.50f);AssetDatabase.CreateAsset(mat,floorPath);}
        float spacing=Mathf.Max(1,r.height*1.4f);
        var floor=GameObject.CreatePrimitive(PrimitiveType.Plane);floor.name="Ground_Y0";floor.transform.SetParent(root.transform,false);
        floor.transform.position=new Vector3(r.reviewOriginX,0,0);floor.transform.localScale=Vector3.one*(.8f*spacing);floor.GetComponent<Renderer>().sharedMaterial=mat;
        string[] names={"Static","Idle","Walk","Attack","Cycle"};
        for(int i=0;i<names.Length;i++)
        {
            var asset=AssetDatabase.LoadAssetAtPath<GameObject>(i==0 ? r.staticPrefab : r.visualPrefab);
            var go=(GameObject)PrefabUtility.InstantiatePrefab(asset,root.transform);go.name=Prefix(r)+"_"+names[i];
            go.transform.position=new Vector3(r.reviewOriginX+(i-2)*spacing,0,0);
            var label=new GameObject("NameLabel");label.transform.SetParent(go.transform,false);label.transform.position=go.transform.position+Vector3.up*(r.height+.21f);
            label.transform.localScale=Vector3.one/go.transform.lossyScale.x;
            var text=label.AddComponent<TextMesh>();text.text=names[i];text.anchor=TextAnchor.MiddleCenter;text.characterSize=.01f;text.fontSize=42;text.color=new Color(.12f,.18f,.2f);
            var marker=GameObject.CreatePrimitive(PrimitiveType.Cube);marker.name="ForwardMinusZ";marker.transform.SetParent(go.transform,false);
            marker.transform.position=go.transform.position+new Vector3(0,.012f,-.4f);marker.transform.localScale=new Vector3(.035f,.015f,.22f)/go.transform.lossyScale.x;
            Object.DestroyImmediate(marker.GetComponent<Collider>());
            if(i>0)
            {
                var cycle=go.AddComponent<CharacterReviewAnimCycle>();cycle.enabled=false;
                var so=new SerializedObject(cycle);var modes=so.FindProperty("motionNames");modes.arraySize=3;
                for(int m=0;m<3;m++)modes.GetArrayElementAtIndex(m).stringValue=new[]{"Idle","Walk","Attack"}[m];
                so.FindProperty("fixedMotion").intValue=i==4 ? -1 : i-1;
                so.ApplyModifiedPropertiesWithoutUndo();cycle.enabled=true;
            }
        }
        var sun=new GameObject(Prefix(r)+"Sun").AddComponent<Light>();sun.transform.SetParent(root.transform,false);
        sun.type=LightType.Directional;sun.intensity=1.0f;sun.shadows=LightShadows.Soft;sun.cullingMask=1<<layer;sun.transform.rotation=Quaternion.Euler(48,-30,0);
        var camera=new GameObject(Prefix(r)+"Camera").AddComponent<Camera>();camera.transform.SetParent(root.transform,false);
        camera.clearFlags=CameraClearFlags.SolidColor;camera.backgroundColor=new Color(.66f,.76f,.81f);camera.depth=50+r.reviewOriginX-20;camera.cullingMask=1<<layer;
        camera.transform.position=new Vector3(r.reviewOriginX+1.1f*spacing,r.height*2,-4.5f*spacing);camera.transform.LookAt(new Vector3(r.reviewOriginX,r.height*.7f,0));
        camera.orthographic=true;camera.orthographicSize=spacing;camera.nearClipPlane=.05f;camera.farClipPlane=100;
        foreach(var t in root.GetComponentsInChildren<Transform>(true))t.gameObject.layer=layer;
        RenderSettings.ambientMode=UnityEngine.Rendering.AmbientMode.Trilight;
        RenderSettings.ambientSkyColor=new Color(.65f,.72f,.8f);
        RenderSettings.ambientEquatorColor=new Color(.45f,.5f,.48f);
        RenderSettings.ambientGroundColor=new Color(.3f,.28f,.25f);
        EditorSceneManager.SaveScene(scene,r.reviewScene);
        var view=SceneView.lastActiveSceneView;if(view!=null){view.LookAt(new Vector3(r.reviewOriginX,.35f,0),Quaternion.Euler(12,-12,0),3.6f);view.Repaint();}
        return "Built additive review "+r.reviewScene+"; other scenes preserved";
    }
    public static async Task<string> Capture(string recipePath="Config/Art/EnemyCharacters/RockBall.json")
    {
        var r=Read(recipePath);var sourceCamera=GameObject.Find(Prefix(r)+"Camera").GetComponent<Camera>();
        var names=new[]{"Static","Idle","Walk","Attack","Cycle"};
        var scene=EditorSceneManager.NewPreviewScene();
        var rt=new RenderTexture(1900,760,24);var tex=new Texture2D(1900,760,TextureFormat.RGB24,false);var active=RenderTexture.active;
        try
        {
            // Fresh prefab instances have no review-cycle state or cached Animator
            // pose. The live review and its labels are never paused or modified.
            var container=new GameObject("IsolatedReviewCapture");SceneManager.MoveGameObjectToScene(container,scene);
            var camera=Object.Instantiate(sourceCamera,container.transform);camera.scene=scene;camera.enabled=false;
            foreach(var light in sourceCamera.transform.parent.GetComponentsInChildren<Light>())Object.Instantiate(light,container.transform);
            var floor=sourceCamera.transform.parent.Find("Ground_Y0");if(floor!=null)Object.Instantiate(floor,container.transform,false);
            for(int i=0;i<names.Length;i++)
            {
                var source=GameObject.Find(Prefix(r)+"_"+names[i]);
                var asset=AssetDatabase.LoadAssetAtPath<GameObject>(i==0 ? r.staticPrefab : r.visualPrefab);
                var go=(GameObject)PrefabUtility.InstantiatePrefab(asset,scene);go.name="Capture_"+names[i];
                go.transform.position=source.transform.position;go.transform.rotation=source.transform.rotation;go.transform.localScale=source.transform.localScale;
                var label=Object.Instantiate(source.transform.Find("NameLabel"),go.transform,false).GetComponent<TextMesh>();
                label.text=i==0 ? "Static" : i==4 ? "Auto cycle" : names[i]+(i==3 ? " (impact)" : " (loop)");
                var marker=source.transform.Find("ForwardMinusZ");if(marker!=null)Object.Instantiate(marker,go.transform,false);
                foreach(var t in go.GetComponentsInChildren<Transform>(true))t.gameObject.layer=source.layer;
                if(i==0)continue;
                var animator=go.GetComponentInChildren<Animator>();animator.enabled=false;
                foreach(var skin in go.GetComponentsInChildren<SkinnedMeshRenderer>())skin.updateWhenOffscreen=true;
                string name=i==1 ? "Idle" : i==2 ? "Walk" : "Attack";
                var clip=AssetDatabase.LoadAssetAtPath<AnimationClip>(r.assetRoot+"/Clips/"+name+".anim");
                clip.SampleAnimation(animator.gameObject,clip.length*(i==1 ? .5f : i==2 ? .25f : r.attackImpact));
            }
            await Task.Delay(100);
            camera.targetTexture=rt;camera.Render();RenderTexture.active=rt;tex.ReadPixels(new Rect(0,0,1900,760),0,0);tex.Apply();
            string path="Assets/Screenshots/"+(Companion(r) ? "companion_" : "enemy_")+r.id.ToLowerInvariant()+"_review.png";
            File.WriteAllBytes(Path.Combine(Application.dataPath,"../",path),tex.EncodeToPNG());AssetDatabase.Refresh();return path;
        }
        finally
        {
            RenderTexture.active=active;rt.Release();Object.DestroyImmediate(rt);Object.DestroyImmediate(tex);EditorSceneManager.ClosePreviewScene(scene);
        }
    }
}
#endif