using System.Collections.Generic;
using System.IO;
using System.Text;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

namespace TKS.EditorTools
{
    /// <summary>
    /// 지형 기믹 표(Assets/Data/Gimmicks/{gimmicks,stage_gimmicks,tutorial_tips}.csv · 기획 tables/ 사본 · PD #1097) + 적 AI 가중치(Assets/Data/AI/ai_weights.csv · PD #1098)
    /// → Resources/Gimmicks/GimmickDb · StageGimmickTable · Resources/AI/AiWeights. 메뉴 TKS/Import Gimmicks 또는
    /// CLI: Unity.exe -batchmode -nographics -projectPath &lt;proj&gt; -executeMethod TKS.EditorTools.GimmickImporter.Import -quit
    /// 형식·참조 오류(정의 id · 스테이지 · 모양 · params · 가중치 키)가 하나라도 있으면 자산을 건드리지 않는다.
    /// </summary>
    public static class GimmickImporter
    {
        public const string AssetFolder = "Assets/Resources/Gimmicks";
        public const string AiFolder = "Assets/Resources/AI";

        [MenuItem("TKS/Import Gimmicks (기믹 임포트)")]
        public static void Import()
        {
            ImportAll();
        }

        public static string[] ReadFiles()
        {
            var dir = Path.Combine(Application.dataPath, GimmickTables.Folder);
            var texts = new string[GimmickTables.Files.Length];
            for (int i = 0; i < texts.Length; i++)
            {
                var p = Path.Combine(dir, GimmickTables.Files[i]);
                texts[i] = File.Exists(p) ? File.ReadAllText(p, Encoding.UTF8) : null;
            }
            return texts;
        }

        public static bool ImportAll()
        {
            var cfg = AssetDatabase.LoadAssetAtPath<BalanceConfig>(ProjectSetup.ConfigPath);
            System.Func<int, int, bool> exists = null;
            if (cfg != null && cfg.stages != null && cfg.stages.Length > 0)
            {
                exists = (ch, st) =>
                {
                    foreach (var s in cfg.stages)
                    {
                        if (s.chapter == ch && s.stage == st) return true;
                    }
                    return false;
                };
            }
            var r = GimmickTables.Parse(ReadFiles(), exists);
            var aiPath = Path.Combine(Application.dataPath, AiWeights.CsvPath);
            var aiEntries = AiWeights.Parse(File.Exists(aiPath) ? File.ReadAllText(aiPath, Encoding.UTF8) : null, r.errors);
            if (r.errors.Count > 0)
            {
                foreach (var e in r.errors) Debug.LogError("[TKS] 기믹 표 오류 · " + e);
                Debug.LogError("[TKS] 기믹 임포트 중단(오류 " + r.errors.Count + ") · 자산 변경 없음");
                return false;
            }
            EnsureFolder("Assets/Resources");
            EnsureFolder(AssetFolder);
            EnsureFolder(AiFolder);

            var db = Load<GimmickDb>(AssetFolder + "/GimmickDb.asset");
            db.defs = new List<GimmickDef>(r.defs);
            EditorUtility.SetDirty(db);
            var table = Load<StageGimmickTable>(AssetFolder + "/StageGimmickTable.asset");
            table.rows = new List<GimmickPlacement>(r.rows);
            table.tips = new List<StageGimmickTable.Tip>(r.tips);
            EditorUtility.SetDirty(table);
            var w = Load<AiWeights>(AiFolder + "/AiWeights.asset");
            w.entries = aiEntries;
            EditorUtility.SetDirty(w);
            AssetDatabase.SaveAssets();
            GimmickTables.Invalidate();
            AiWeights.Invalidate();
            Debug.Log("[TKS] 기믹 임포트 완료 · 정의 " + r.defs.Count + " · 배치 " + r.rows.Count + " · 팁 " + r.tips.Count + " · AI 가중치 " + aiEntries.Count + " · " + AssetFolder);
            return true;
        }

        static T Load<T>(string path) where T : ScriptableObject
        {
            var a = AssetDatabase.LoadAssetAtPath<T>(path);
            if (a != null) return a;
            a = ScriptableObject.CreateInstance<T>();
            AssetDatabase.CreateAsset(a, path);
            return a;
        }

        static void EnsureFolder(string path)
        {
            if (AssetDatabase.IsValidFolder(path)) return;
            var parent = Path.GetDirectoryName(path).Replace('\\', '/');
            AssetDatabase.CreateFolder(parent, Path.GetFileName(path));
        }

        /// <summary>
        /// 기믹 검증 캡처(GUI 에디터 · 사본 프로젝트 권장 · 세이브 = 메모리 전용 · PD #1097):
        /// Unity.exe -projectPath &lt;copy&gt; -executeMethod TKS.EditorTools.GimmickImporter.Capture -gimmickDir &lt;dir&gt;
        /// 샘플 5 스테이지 1턴씩 + 조준선 반응 2장 + AI 함정 쪽 튕겨내기 1장 PNG + log · 끝나면 스스로 종료.
        /// -gimmickStages 1-10,2-10,… 을 주면 그 스테이지들의 시작 화면(전장 전체)만 찍는다(145 배치 확인).
        /// </summary>
        public static void Capture()
        {
            string dir = GetArg("-gimmickDir");
            if (string.IsNullOrEmpty(dir)) dir = Path.Combine(Directory.GetCurrentDirectory(), "Logs", "gimmick_capture");
            ImportAll();
            EditorSceneManager.OpenScene(ProjectSetup.ScenePath, OpenSceneMode.Single);
            SessionState.SetBool(OutGame.SaveStore.MemoryFlagKey, true);
            SessionState.SetString(GimmickCaptureDriver.DirKey, dir);
            SessionState.SetString(GimmickCaptureDriver.StagesKey, GetArg("-gimmickStages") ?? "");
            Debug.Log("[TKS] 기믹 캡처 시작 → " + dir);
            EditorApplication.EnterPlaymode();
        }

        static string GetArg(string name)
        {
            var args = System.Environment.GetCommandLineArgs();
            for (int i = 0; i < args.Length - 1; i++)
                if (args[i] == name) return args[i + 1];
            return null;
        }
    }
}