using UnityEditor;
using UnityEngine;
using BaseGames.Player;
using BaseGames.Player.States;

namespace BaseGames.Editor
{
    /// <summary>
    /// 开发阶段 GM 调试工具窗口（仅 Play Mode 有效）。
    /// 功能：资源快速填充（灵铢/灵力/魄元）、能力解锁/锁定、形态切换、调试辅助。
    /// 菜单：BaseGames / Tools / GM Debug Tool
    /// </summary>
    public class GMToolWindow : EditorWindow
    {
        // ── 菜单 ──────────────────────────────────────────────────────────────
        [MenuItem("BaseGames/Tools/GM Debug Tool", priority = 2)]
        public static void Open()
        {
            var wnd = GetWindow<GMToolWindow>();
            wnd.titleContent = new GUIContent("GM Debug Tool");
            wnd.minSize = new Vector2(320, 500);
        }

        // ── 资源输入字段 ──────────────────────────────────────────────────────
        private int _lingZhuAmount   = 9999;
        private int _soulPowerAmount = 100;
        private int _spiritAmount    = 100;

        // ── 折叠状态 ──────────────────────────────────────────────────────────
        private bool _foldResources  = true;
        private bool _foldJump       = true;
        private bool _foldForms      = true;
        private bool _foldAbilities  = false;
        private bool _foldDebug      = true;

        // ── 缓存（避免每帧 FindObjectOfType）─────────────────────────────────
        private PlayerStats      _stats;
        private FormController   _formCtrl;
        private PlayerController _playerCtrl;
        private double           _lastCacheTime = -10;

        // ── 能力分组定义（与 AbilityTypeDrawer 保持一致）────────────────────
        private static readonly (string label, AbilityType[] flags)[] AbilityGroups =
        {
            ("移动能力", new[]
            {
                AbilityType.WallCling,  AbilityType.WallJump,
                AbilityType.Dash,       AbilityType.Dash,
                AbilityType.DoubleJump, AbilityType.SuperJump,
                AbilityType.Swim,       AbilityType.Dive,
            }),
            ("法术能力", new[] { AbilityType.Spell1, AbilityType.Spell2, AbilityType.Spell3 }),
            ("灵魄形态", new[] { AbilityType.SpiritForm, AbilityType.SpiritDash }),
            ("战斗能力", new[] { AbilityType.Parry, AbilityType.ChargeAttack, AbilityType.DownSlash }),
            ("互动能力", new[] { AbilityType.Interact, AbilityType.FastTravel }),
            ("能力强化", new[] { AbilityType.InvincibleDash }),
        };

        private static readonly string[] AbilityFlagNames =
        {
            "贴墙悬挂", "墙跳", "地面冲刺", "空中冲刺", "二段跳", "超级跳", "游泳", "下劈",
            "法术槽 1", "法术槽 2", "法术槽 3",
            "灵魄形态", "灵魄冲刺",
            "弹反", "蓄力攻击", "下斩",
            "互动", "快速旅行",
            "无敌冲刺",
        };

        // ── 样式（懒初始化）──────────────────────────────────────────────────
        private GUIStyle _headerStyle;
        private GUIStyle _boxStyle;

        // ── 滚动 ──────────────────────────────────────────────────────────────
        private Vector2 _scroll;

        // ── EditorWindow 回调 ─────────────────────────────────────────────────

        private void OnEnable()  => EditorApplication.playModeStateChanged += OnPlayModeChanged;
        private void OnDisable() => EditorApplication.playModeStateChanged -= OnPlayModeChanged;

        private void OnPlayModeChanged(PlayModeStateChange state)
        {
            _stats      = null;
            _formCtrl   = null;
            _playerCtrl = null;
            Repaint();
        }

        private void OnGUI()
        {
            EnsureStyles();

            if (!Application.isPlaying)
            {
                EditorGUILayout.HelpBox("GM 工具仅在 Play Mode 下有效。\n请先运行游戏。", MessageType.Info);
                return;
            }

            RefreshCache();

            if (_stats == null)
            {
                EditorGUILayout.HelpBox("场景中未找到 PlayerStats 组件。\n请确认玩家已生成。", MessageType.Warning);
                if (GUILayout.Button("重新扫描")) _lastCacheTime = -10;
                return;
            }

            _scroll = EditorGUILayout.BeginScrollView(_scroll);

            DrawResourceSection();
            DrawJumpSection();
            DrawFormSection();
            DrawAbilitySection();
            DrawDebugSection();

            EditorGUILayout.EndScrollView();
        }

        // ── 分区：资源 ────────────────────────────────────────────────────────

        private void DrawResourceSection()
        {
            _foldResources = DrawFoldout(_foldResources, "资源快速填充");
            if (!_foldResources) return;

            EditorGUILayout.BeginVertical(_boxStyle);

            // 灵铢
            EditorGUILayout.LabelField("灵铢", EditorStyles.boldLabel);
            EditorGUILayout.LabelField($"当前：{_stats.CurrentLingZhu}", EditorStyles.miniLabel);
            EditorGUILayout.BeginHorizontal();
            _lingZhuAmount = EditorGUILayout.IntField(_lingZhuAmount, GUILayout.Width(80));
            if (GUILayout.Button("增加")) _stats.AddLingZhu(_lingZhuAmount);
            if (GUILayout.Button("设为 9999")) _stats.AddLingZhu(Mathf.Max(0, 9999 - _stats.CurrentLingZhu));
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(6);

            // 灵力（SoulPower）
            EditorGUILayout.LabelField("灵力（技能用）", EditorStyles.boldLabel);
            EditorGUILayout.LabelField($"当前：{_stats.CurrentSoulPower} / {_stats.MaxSoulPower}", EditorStyles.miniLabel);
            EditorGUILayout.BeginHorizontal();
            _soulPowerAmount = EditorGUILayout.IntField(_soulPowerAmount, GUILayout.Width(80));
            if (GUILayout.Button("增加")) _stats.AddSoulPower(_soulPowerAmount);
            if (GUILayout.Button("填满")) _stats.AddSoulPower(_stats.MaxSoulPower);
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(6);

            // 魄元（SpiritPower）
            EditorGUILayout.LabelField("魄元（魄技能用）", EditorStyles.boldLabel);
            EditorGUILayout.LabelField($"当前：{_stats.CurrentSpiritPower} / {_stats.MaxSpiritPower}", EditorStyles.miniLabel);
            EditorGUILayout.BeginHorizontal();
            _spiritAmount = EditorGUILayout.IntField(_spiritAmount, GUILayout.Width(80));
            if (GUILayout.Button("增加")) _stats.AddSpiritPower(_spiritAmount);
            if (GUILayout.Button("填满")) _stats.AddSpiritPower(_stats.MaxSpiritPower);
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(4);

            if (GUILayout.Button("▶ 全部资源填满"))
            {
                _stats.AddLingZhu(Mathf.Max(0, 9999 - _stats.CurrentLingZhu));
                _stats.AddSoulPower(_stats.MaxSoulPower);
                _stats.AddSpiritPower(_stats.MaxSpiritPower);
            }

            EditorGUILayout.EndVertical();
        }

        // ── 分区：跳跃快捷 ────────────────────────────────────────────────────

        private void DrawJumpSection()
        {
            _foldJump = DrawFoldout(_foldJump, "跳跃能力快捷");
            if (!_foldJump) return;

            EditorGUILayout.BeginVertical(_boxStyle);

            // ── 当前状态 ──
            bool hasDoubleJump = _stats.HasAbility(AbilityType.DoubleJump);
            bool hasDash       = _stats.HasAbility(AbilityType.Dash);
            bool hasWallJump   = _stats.HasAbility(AbilityType.WallJump);
            bool hasWallCling  = _stats.HasAbility(AbilityType.WallCling);

            int airJumpsLeft = _playerCtrl != null ? _playerCtrl.AirJumpsLeft : -1;
            int maxAirJumps  = _playerCtrl != null && _playerCtrl.MovConfig != null
                ? _playerCtrl.MovConfig.MaxAirJumps : -1;
            string airStr = airJumpsLeft >= 0
                ? $"{airJumpsLeft} / {maxAirJumps}"
                : "N/A";

            EditorGUILayout.LabelField(
                $"二段跳：{(hasDoubleJump ? "✔ 已解锁" : "✘ 未解锁")}  |  腾空剩余：{airStr}",
                EditorStyles.miniLabel);

            // ── MaxAirJumps 控制 ──
            if (_playerCtrl != null && _playerCtrl.MovConfig != null)
            {
                EditorGUILayout.BeginHorizontal();
                EditorGUILayout.LabelField("最大空中跳跃次数", GUILayout.Width(120));
                int newMax = EditorGUILayout.IntSlider(
                    _playerCtrl.MovConfig.MaxAirJumps, 1, 5, GUILayout.ExpandWidth(true));
                if (newMax != _playerCtrl.MovConfig.MaxAirJumps)
                {
                    _playerCtrl.MovConfig.MaxAirJumps = newMax;
                    EditorUtility.SetDirty(_playerCtrl.MovConfig);
                }
                EditorGUILayout.EndHorizontal();
                EditorGUILayout.LabelField(
                    $"  1=二段跳  2=三段跳  3=四段跳…（需先解锁 DoubleJump 能力）",
                    EditorStyles.miniLabel);
            }

            EditorGUILayout.Space(4);

            // ── 跳跃系列快捷按钮（每行 2 个）──
            EditorGUILayout.BeginHorizontal();
            DrawToggleAbilityBtn(hasDoubleJump, AbilityType.DoubleJump, "二段跳");
            DrawToggleAbilityBtn(hasDash,       AbilityType.Dash,       "冲刺（地面+空中）");
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.BeginHorizontal();
            DrawToggleAbilityBtn(hasWallJump,  AbilityType.WallJump,  "墙跳");
            DrawToggleAbilityBtn(hasWallCling, AbilityType.WallCling, "贴墙悬挂");
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.BeginHorizontal();
            DrawToggleAbilityBtn(_stats.HasAbility(AbilityType.SuperJump), AbilityType.SuperJump, "超级跳");
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(4);

            // ── 批量快捷 ──
            EditorGUILayout.BeginHorizontal();
            if (GUILayout.Button("解锁全部移动能力"))
            {
                foreach (var f in new[]
                {
                    AbilityType.Dash,
                    AbilityType.DoubleJump, AbilityType.SuperJump,
                    AbilityType.WallCling, AbilityType.WallJump,
                })
                    _stats.UnlockAbility(f);
            }
            if (GUILayout.Button("锁定全部移动能力"))
            {
                foreach (var f in new[]
                {
                    AbilityType.Dash,
                    AbilityType.DoubleJump, AbilityType.SuperJump,
                    AbilityType.WallCling, AbilityType.WallJump,
                })
                    _stats.LockAbility(f);
            }
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.HelpBox(
                "MaxAirJumps 修改立即写入 ScriptableObject（持久化）。\n" +
                "AirJumpsLeft 在角色下次落地时按新值重置。",
                MessageType.None);

            EditorGUILayout.EndVertical();
        }

        /// <summary>
        /// 绘制一个「已解锁 → 锁定 / 未解锁 → 解锁」的切换按钮。
        /// </summary>
        private void DrawToggleAbilityBtn(bool hasIt, AbilityType flag, string label)
        {
            GUI.backgroundColor = hasIt ? new Color(0.6f, 1.0f, 0.6f) : new Color(1.0f, 0.85f, 0.6f);
            string btnText = hasIt ? $"✔ {label}" : $"✘ {label}";
            if (GUILayout.Button(btnText))
            {
                if (hasIt) _stats.LockAbility(flag);
                else       _stats.UnlockAbility(flag);
            }
            GUI.backgroundColor = Color.white;
        }

        // ── 分区：形态 ────────────────────────────────────────────────────────

        private void DrawFormSection()
        {
            _foldForms = DrawFoldout(_foldForms, "形态快速切换");
            if (!_foldForms) return;

            EditorGUILayout.BeginVertical(_boxStyle);

            if (_formCtrl == null)
            {
                EditorGUILayout.HelpBox("场景中未找到 FormController 组件。", MessageType.Warning);
            }
            else
            {
                string cur = _formCtrl.CurrentForm != null ? _formCtrl.CurrentForm.displayName : "未知";
                EditorGUILayout.LabelField($"当前形态：{cur}", EditorStyles.boldLabel);
                EditorGUILayout.Space(4);

                EditorGUILayout.BeginHorizontal();
                if (GUILayout.Button("天魂")) SwitchForm(FormType.TianHun);
                if (GUILayout.Button("地魂")) SwitchForm(FormType.DiHun);
                if (GUILayout.Button("命魂")) SwitchForm(FormType.MingHun);
                EditorGUILayout.EndHorizontal();

                EditorGUILayout.HelpBox("提示：切换形态前请确保已解锁灵魄形态（SpiritForm）能力。", MessageType.None);
            }

            EditorGUILayout.EndVertical();
        }

        private void SwitchForm(FormType type)
        {
            // 确保 SpiritForm 能力已解锁（否则 FSM 可能拒绝形态切换）
            _stats.UnlockAbility(AbilityType.SpiritForm);
            _formCtrl.SwitchForm(type);
        }

        // ── 分区：能力 ────────────────────────────────────────────────────────

        private void DrawAbilitySection()
        {
            _foldAbilities = DrawFoldout(_foldAbilities, "能力解锁 / 锁定");
            if (!_foldAbilities) return;

            EditorGUILayout.BeginVertical(_boxStyle);

            // 快捷全选/全清
            EditorGUILayout.BeginHorizontal();
            if (GUILayout.Button("全部解锁"))
            {
                foreach (var (_, flags) in AbilityGroups)
                    foreach (var f in flags)
                        _stats.UnlockAbility(f);
            }
            if (GUILayout.Button("全部锁定"))
            {
                foreach (var (_, flags) in AbilityGroups)
                    foreach (var f in flags)
                        _stats.LockAbility(f);
            }
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(6);

            // 各分组
            foreach (var (groupLabel, flags) in AbilityGroups)
            {
                EditorGUILayout.LabelField(groupLabel, EditorStyles.boldLabel);

                EditorGUILayout.BeginHorizontal();
                bool allOn = true;
                foreach (var f in flags) if (!_stats.HasAbility(f)) { allOn = false; break; }
                if (GUILayout.Button(allOn ? "全锁" : "全解", GUILayout.Width(42)))
                {
                    foreach (var f in flags)
                    {
                        if (allOn) _stats.LockAbility(f);
                        else       _stats.UnlockAbility(f);
                    }
                }
                EditorGUILayout.EndHorizontal();

                EditorGUILayout.BeginHorizontal();
                int col = 0;
                foreach (var flag in flags)
                {
                    bool has     = _stats.HasAbility(flag);
                    bool toggled = GUILayout.Toggle(has, FlagDisplayName(flag), GUILayout.Width(128));
                    if (toggled != has)
                    {
                        if (toggled) _stats.UnlockAbility(flag);
                        else         _stats.LockAbility(flag);
                    }
                    col++;
                    if (col == 2) { col = 0; EditorGUILayout.EndHorizontal(); EditorGUILayout.BeginHorizontal(); }
                }
                EditorGUILayout.EndHorizontal();
                EditorGUILayout.Space(4);
            }

            EditorGUILayout.EndVertical();
        }

        // ── 分区：调试辅助 ────────────────────────────────────────────────────

        private void DrawDebugSection()
        {
            _foldDebug = DrawFoldout(_foldDebug, "调试辅助");
            if (!_foldDebug) return;

            EditorGUILayout.BeginVertical(_boxStyle);

            // HP
            EditorGUILayout.LabelField($"HP：{_stats.CurrentHP} / {_stats.MaxHP}", EditorStyles.miniLabel);
            EditorGUILayout.BeginHorizontal();
            if (GUILayout.Button("满血"))    _stats.FullHeal();
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(4);

            // 弹簧充能
            EditorGUILayout.LabelField($"弹力充能：{_stats.CurrentSpringCharges} / {_stats.MaxSpringCharges}", EditorStyles.miniLabel);
            if (GUILayout.Button("恢复全部弹力充能")) _stats.RestoreSpringCharges();

            EditorGUILayout.Space(4);

            // 无敌模式（God Mode）
            bool godNow = _stats.IsInvincible;  // 仅作参考，GodMode 内部字段
            EditorGUILayout.BeginHorizontal();
            if (GUILayout.Button("开启无敌模式")) _stats.SetGodMode(true);
            if (GUILayout.Button("关闭无敌模式")) _stats.SetGodMode(false);
            EditorGUILayout.EndHorizontal();

            EditorGUILayout.Space(4);

            // 一键全开（开发快速进入测试状态）
            GUI.backgroundColor = new Color(0.7f, 1.0f, 0.7f);
            if (GUILayout.Button("▶ 一键满状态（资源 + 全能力 + 满血）", GUILayout.Height(32)))
            {
                _stats.FullHeal();
                _stats.RestoreSpringCharges();
                _stats.AddLingZhu(Mathf.Max(0, 9999 - _stats.CurrentLingZhu));
                _stats.AddSoulPower(_stats.MaxSoulPower);
                _stats.AddSpiritPower(_stats.MaxSpiritPower);
                foreach (var (_, flags) in AbilityGroups)
                    foreach (var f in flags)
                        _stats.UnlockAbility(f);
            }
            GUI.backgroundColor = Color.white;

            EditorGUILayout.EndVertical();
        }

        // ── 工具方法 ──────────────────────────────────────────────────────────

        private void RefreshCache()
        {
            if (EditorApplication.timeSinceStartup - _lastCacheTime < 2.0) return;
            _lastCacheTime = EditorApplication.timeSinceStartup;
            _stats       = FindObjectOfType<PlayerStats>();
            _formCtrl    = FindObjectOfType<FormController>();
            _playerCtrl  = FindObjectOfType<PlayerController>();
        }

        private bool DrawFoldout(bool state, string label)
        {
            EditorGUILayout.Space(4);
            bool next = EditorGUILayout.Foldout(state, label, true, _headerStyle);
            return next;
        }

        private static string FlagDisplayName(AbilityType flag) => flag switch
        {
            AbilityType.WallCling     => "贴墙悬挂",
            AbilityType.WallJump      => "墙跳",
            AbilityType.Dash          => "冲刺",
            AbilityType.DoubleJump    => "二段跳",
            AbilityType.SuperJump     => "超级跳",
            AbilityType.Swim          => "游泳",
            AbilityType.Dive          => "下劈",
            AbilityType.Spell1        => "法术槽 1",
            AbilityType.Spell2        => "法术槽 2",
            AbilityType.Spell3        => "法术槽 3",
            AbilityType.SpiritForm    => "灵魄形态",
            AbilityType.SpiritDash    => "灵魄冲刺",
            AbilityType.Parry         => "弹反",
            AbilityType.ChargeAttack  => "蓄力攻击",
            AbilityType.DownSlash     => "下斩",
            AbilityType.Interact      => "互动",
            AbilityType.FastTravel    => "快速旅行",
            AbilityType.InvincibleDash => "无敌冲刺",
            _                         => flag.ToString(),
        };

        private void EnsureStyles()
        {
            if (_headerStyle != null) return;
            _headerStyle = new GUIStyle(EditorStyles.foldout)
            {
                fontStyle = FontStyle.Bold,
                fontSize  = 12,
            };
            _boxStyle = new GUIStyle(EditorStyles.helpBox)
            {
                padding = new RectOffset(8, 8, 6, 6),
            };
        }

        // ── 自动刷新（每秒重绘以显示最新数值）──────────────────────────────
        private void OnInspectorUpdate() => Repaint();
    }
}