using System;
using System.Collections.Generic;
using System.IO;
using System.Numerics;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.UI;
using VS.Sim;
using VS.View;

namespace VS.EditorTools
{
    // 화면 렌더 검사: Unity.exe -batchmode(그래픽 켬) -projectPath <VSClone> -executeMethod VS.EditorTools.EditorRender.Run
    // → C:/ViralStreamer/_re/render/*.png · 임시 세이브 사용(PD 세이브 미접촉) · 결과 "RENDER ALL PASS" 또는 "RENDER FAIL n"
    public static partial class EditorRender
    {
        public const string OutDir = "C:/ViralStreamer/_re/render";
        static int fails;
        static readonly List<string> notes = new List<string>();
        static DateTime clockBase = new DateTime(2026, 1, 1, 12, 0, 0);
        static double clockExtra;

        public static void Run()
        {
            int exit = 0;
            try
            {
                Application.SetStackTraceLogType(LogType.Log, StackTraceLogType.None);
                fails = 0; notes.Clear();
                Directory.CreateDirectory(OutDir);
                EditorSceneManager.NewScene(NewSceneSetup.EmptyScene, NewSceneMode.Single);
                var app = NewApp();
                Shot(app, "main_new");
                Progress(app.G);
                app.RebuildStage(); app.RefreshAll();
                Shot(app, "main_mid");
                app.OpenHouse(); Shot(app, "pop_house"); app.ClosePopup();
                app.OpenSkill(); Shot(app, "pop_skill"); app.ClosePopup();
                app.OpenCloset(); Shot(app, "pop_closet"); app.ClosePopup();
                if (app.G.Story != null && app.G.Story.chapters.Count > 0) { app.OpenStory(app.G.Story.chapters[0]); Shot(app, "pop_story"); app.ClosePopup(); }
                app.G.CoinDonate = 1234.5m; app.RefreshAll();
                app.OpenClaimDonate(); Shot(app, "pop_donate"); app.ClosePopup();
                app.OpenSettings(); Shot(app, "pop_settings"); app.ClosePopup();
                app.G.Follower = app.T.RankFollower[3];
                app.OpenRankUp(); Shot(app, "pop_rankup"); app.ClosePopup();
                SystemShots(app);
                // 방 6종 최대 단계 그림
                for (int h = 0; h < Tables.HouseCount; h++)
                {
                    app.G.S.house = h; app.G.S.rooms.Clear();
                    foreach (var it in app.T.Rooms[h].Items) app.G.S.rooms.Add(new SaveItem { Type = it.Index, Level = it.Levels.Count - 1 });
                    app.RebuildStage(); app.RefreshAll();
                    Shot(app, "room" + (h + 1) + "_max");
                }
                Debug.Log(fails == 0 ? "[VS] RENDER ALL PASS" : $"[VS] RENDER FAIL {fails}");
                foreach (var n in notes) Debug.Log("[VS] RENDER NOTE " + n);
                if (fails > 0) exit = 1;
            }
            catch (Exception e) { Debug.LogError("[VS] RENDER EXCEPTION " + e); exit = 2; }
            EditorApplication.Exit(exit);
        }

        static RenderTexture rt;

        static GameApp NewApp()
        {
            clockExtra = 0;
            GameApp.ClockOverride = () => clockBase.AddSeconds(clockExtra);
            GameApp.SavePathOverride = Path.Combine(Path.GetTempPath(), "vs_render_save.json");
            if (File.Exists(GameApp.SavePathOverride)) File.Delete(GameApp.SavePathOverride);
            rt = new RenderTexture(1080, 1920, 24, RenderTextureFormat.ARGB32);
            GameApp.RenderTarget = rt;
            var go = new GameObject("Game");
            var app = go.AddComponent<GameApp>();
            app.Headless = true;
            app.Init();
            return app;
        }

        public static void Advance(double sec) => clockExtra += sec;

        /// 중반 진행 상태 (방 1 아이템 일부 · 스킬 · 랭크 3 · 의상 5)
        static void Progress(Game g)
        {
            g.S.rooms.Clear();
            int[] lv = { 30, 26, 52, 12, 74, 20, 8, 40, 60, 3, 50 };
            for (int i = 0; i < lv.Length; i++) g.S.rooms.Add(new SaveItem { Type = i, Level = lv[i] });
            g.S.skills.Clear();
            for (int i = 0; i < 5; i++) g.S.skills.Add(new SaveItem { Type = i, Level = 10 + i * 7 });
            g.Follower = BigInteger.Parse("250000"); g.S.rankIndex = 3;
            g.Coin = BigInteger.Parse("12345678"); g.S.ticket = 7;
            g.S.closetLevel = 5; g.S.closetCurrent = 3;
            g.CoinDonate = 456.7m;
        }

        static void Shot(GameApp app, string name)
        {
            Canvas.ForceUpdateCanvases();
            app.Cam.targetTexture = rt;
            app.Cam.Render();
            Canvas.ForceUpdateCanvases();
            app.Cam.Render();
            var prev = RenderTexture.active;
            RenderTexture.active = rt;
            var tex = new Texture2D(rt.width, rt.height, TextureFormat.RGB24, false);
            tex.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);
            tex.Apply();
            RenderTexture.active = prev;
            File.WriteAllBytes(Path.Combine(OutDir, name + ".png"), tex.EncodeToPNG());
            UnityEngine.Object.DestroyImmediate(tex);
            // 검사: 빈 그림 · 글자 넘침
            int missing = 0, overflow = 0;
            foreach (var im in app.Root.GetComponentsInChildren<Image>(false))
                if (im.sprite == null && im.color.a > 0.01f && im.enabled) { missing++; if (missing <= 3) notes.Add(name + " 빈 Image: " + im.name); }
            foreach (var t in app.Root.GetComponentsInChildren<Text>(false))
            {
                if (string.IsNullOrEmpty(t.text) || !t.enabled) continue;
                var gen = t.cachedTextGenerator;
                if (gen.characterCountVisible > 0 && gen.characterCountVisible < t.text.Replace("\n", "").Length - 1) overflow++;
            }
            if (missing > 0) { fails++; notes.Add($"{name}: 그림 없는 Image {missing}"); }
            if (overflow > 0) notes.Add($"{name}: 잘린 글자 {overflow}");
            Debug.Log($"[VS] RENDER {name} missing={missing} cut={overflow}");
        }
    }
}