using System.Collections.Generic;
using ADOFAIRenderer.Core;
using ADOFAIRenderer.Data;
using ADOFAIRenderer.Data.Input;
using ADOFAIRenderer.Util.FFmpeg;
using MelonLoader;
using UnityEngine;
using UnityEngine.UIElements;

namespace ADOFAIRenderer.UI
{
    internal class RenderConfigUIManager : MonoBehaviour
    {
        [SerializeField]
        private UIDocument uiDocument = null!;
        
        private VisualElement _root = null!;
        private IntegerInputValidator _intValidator = null!;
        private DoubleInputValidator _doubleValidator = null!;
        
        private Button _goRenderButton = null!;
        private Button _videoEncodingConfigButton = null!;
        private VisualElement _videoEncodingConfigContainer = null!;
        
        private Button _audioEncodingConfigButton = null!;
        private VisualElement _audioEncodingConfigContainer = null!;
        
        private Button _advancedSettingsButton = null!;
        private VisualElement? _advancedConfigContainer;
        
        private void Awake()
        {
            _root = uiDocument.rootVisualElement;
            RenderManager.Instance.Configuration = new RenderConfig();
            
            _intValidator = new IntegerInputValidator(_root);
            _doubleValidator = new DoubleInputValidator(_root);
        }

        private void Start()
        {
            // Init Validators
            _intValidator
                .AddLimits("RenderWidth", new PositiveOnlyIntegerLimit(), new RangeIntegerLimit(1, 7680))
                .AddLimits("RenderHeight", new PositiveOnlyIntegerLimit(), new RangeIntegerLimit(1, 4320));

            _doubleValidator
                .AddLimits("RenderFPS", new PositiveOnlyDoubleLimit(), new RangeDoubleLimit(0, 9600))
                .AddLimits("VideoFPS", new PositiveOnlyDoubleLimit(), new RangeDoubleLimit(0, 4800))
                .AddLimits("DelayAfterEnd", new PositiveOnlyDoubleLimit(), new RangeDoubleLimit(0, 86400));
            
            _intValidator.SetupValidation();
            _doubleValidator.SetupValidation();
            
            // Attach Button Event Listener
            _goRenderButton = _root.Q<Button>("GoRenderButton");
            _goRenderButton?.RegisterCallback<ClickEvent>(_ => TryGoRender());

            _videoEncodingConfigButton = _root.Q<Button>("VideoEncodingSettingsButton");
            if (_videoEncodingConfigButton != null)
            {
                Melon<RenderMod>.Logger.Msg($"[UI] VideoEncodingSettingsButton 발견: pickingMode={_videoEncodingConfigButton.pickingMode}, enabledSelf={_videoEncodingConfigButton.enabledSelf}");
                _videoEncodingConfigButton.RegisterCallback<ClickEvent>(_ => OpenVideoEncodingConfig());
            }
            else
            {
                Melon<RenderMod>.Logger.Error("Button 'VideoEncodingSettingsButton'을(를) 찾을 수 없습니다.");
            }

            _audioEncodingConfigButton = _root.Q<Button>("AudioEncodingSettingsButton");
            if (_audioEncodingConfigButton != null)
            {
                Melon<RenderMod>.Logger.Msg($"[UI] AudioEncodingSettingsButton 발견: pickingMode={_audioEncodingConfigButton.pickingMode}, enabledSelf={_audioEncodingConfigButton.enabledSelf}");
                _audioEncodingConfigButton.RegisterCallback<ClickEvent>(_ => OpenAudioEncodingConfig());
            }
            else
            {
                Melon<RenderMod>.Logger.Error("Button 'AudioEncodingSettingsButton'을(를) 찾을 수 없습니다.");
            }

            var presetSettingsButton = _root.Q<Button>("PresetSettingsButton");
            if (presetSettingsButton != null)
            {
                Melon<RenderMod>.Logger.Msg($"[UI] PresetSettingsButton 발견: pickingMode={presetSettingsButton.pickingMode}, enabledSelf={presetSettingsButton.enabledSelf}");
                presetSettingsButton.RegisterCallback<ClickEvent>(_ => OpenPresetConfig());
            }
            else
            {
                Melon<RenderMod>.Logger.Error("Button 'PresetSettingsButton'을(를) 찾을 수 없습니다.");
            }

            _advancedSettingsButton = _root.Q<Button>("AdvancedSettingsButton");
            if (_advancedSettingsButton == null)
            {
                var bottomRow = CreateRow();
                bottomRow.pickingMode = PickingMode.Ignore;
                bottomRow.style.position = Position.Absolute;
                bottomRow.style.right = 0f;
                bottomRow.style.bottom = 0f;
                bottomRow.style.justifyContent = Justify.FlexEnd;

                _advancedSettingsButton = new Button { name = "AdvancedSettingsButton", text = "고급 설정..." };
                bottomRow.Add(_advancedSettingsButton);

                var targetContainer = _root.childCount > 0 ? _root[0] : _root;
                targetContainer.Add(bottomRow);
                Melon<RenderMod>.Logger.Msg("[UI] AdvancedSettingsButton 동적 생성 완료.");
            }
            else
            {
                _advancedSettingsButton.text = "고급 설정...";
                Melon<RenderMod>.Logger.Msg($"[UI] AdvancedSettingsButton 발견: pickingMode={_advancedSettingsButton.pickingMode}, enabledSelf={_advancedSettingsButton.enabledSelf}");
            }

            _advancedSettingsButton.RegisterCallback<ClickEvent>(_ => OpenAdvancedConfig());
        }

        private void OpenAdvancedConfig()
        {
            var config = RenderManager.Instance.Configuration;

            var tempConfig = new AdvancedConfig
            {
                ProcessAudio = config.AdvancedConfig.ProcessAudio,
                RandomSeed = config.AdvancedConfig.RandomSeed,
                NonTile = config.AdvancedConfig.NonTile,
                Extension = config.AdvancedConfig.Extension
            };

            if (_advancedConfigContainer != null && _root.Contains(_advancedConfigContainer))
            {
                _root.Remove(_advancedConfigContainer);
            }

            _advancedConfigContainer = new VisualElement
            {
                name = "AdvancedSettingsContainer",
                style =
                {
                    position = Position.Absolute,
                    width = Length.Percent(100),
                    height = Length.Percent(100),
                    left = 0,
                    top = 0,
                    backgroundColor = new StyleColor(new Color(0.15f, 0.15f, 0.15f, 1.0f)),
                    justifyContent = Justify.Center,
                    alignItems = Align.Center
                }
            };

            // 1. 타이틀 로우
            var titleRow = CreateRow();
            var titleLabel = new Label("고급 설정")
            {
                style =
                {
                    fontSize = 24,
                    color = new StyleColor(Color.white)
                }
            };
            titleRow.Add(titleLabel);
            _advancedConfigContainer.Add(titleRow);

            // 2. 확장자 로우
            var extensionRow = CreateRow();
            var extensionLabel = CreateFormLabel("확장자");
            var extensionChoices = new List<string> { "mkv", "mp4", "mov", "webm", "avi" };
            var currentExt = string.IsNullOrWhiteSpace(tempConfig.Extension) ? "mkv" : tempConfig.Extension.TrimStart('.').ToLower();
            if (!extensionChoices.Contains(currentExt))
            {
                extensionChoices.Add(currentExt);
            }
            var extensionDropdown = new DropdownField(extensionChoices, currentExt) { name = "AdvancedExtension" };
            extensionRow.Add(extensionLabel);
            extensionRow.Add(extensionDropdown);
            _advancedConfigContainer.Add(extensionRow);

            // 3. 오디오 처리 로우
            var processAudioRow = CreateRow();
            var processAudioLabel = CreateFormLabel("오디오 처리");
            var processAudioToggle = new Toggle { name = "AdvancedProcessAudioToggle", label = "", value = tempConfig.ProcessAudio };
            processAudioRow.Add(processAudioLabel);
            processAudioRow.Add(processAudioToggle);
            _advancedConfigContainer.Add(processAudioRow);

            // 4. 논타일 모드 로우
            var nonTileRow = CreateRow();
            var nonTileLabel = CreateFormLabel("논타일 모드");
            var nonTileToggle = new Toggle { name = "AdvancedNonTileToggle", label = "", value = tempConfig.NonTile };
            nonTileRow.Add(nonTileLabel);
            nonTileRow.Add(nonTileToggle);
            _advancedConfigContainer.Add(nonTileRow);

            // 5. 랜덤 시드 로우
            var randomSeedRow = CreateRow();
            var randomSeedLabel = CreateFormLabel("랜덤 시드 (입력 선택)");
            var randomSeedField = new TextField { name = "AdvancedRandomSeed", label = "", value = tempConfig.RandomSeed?.ToString() ?? string.Empty };

            randomSeedField.RegisterValueChangedCallback(evt =>
            {
                if (string.IsNullOrEmpty(evt.newValue)) return;
                if (!int.TryParse(evt.newValue, out _) && evt.newValue != "-")
                {
                    randomSeedField.SetValueWithoutNotify(evt.previousValue);
                }
            });

            randomSeedRow.Add(randomSeedLabel);
            randomSeedRow.Add(randomSeedField);
            _advancedConfigContainer.Add(randomSeedRow);

            // 6. 제어 버튼 로우 (취소 / 저장)
            var buttonRow = CreateRow();
            var cancelBtn = new Button { text = "취소" };
            var saveBtn = new Button { text = "저장" };
            
            buttonRow.Add(cancelBtn);
            buttonRow.Add(saveBtn);
            _advancedConfigContainer.Add(buttonRow);

            cancelBtn.RegisterCallback<ClickEvent>(_ =>
            {
                ToggleAdvancedScreens(false);
                _root.Remove(_advancedConfigContainer);
                _advancedConfigContainer = null!;
            });

            saveBtn.RegisterCallback<ClickEvent>(_ =>
            {
                tempConfig.Extension = extensionDropdown.value;
                tempConfig.ProcessAudio = processAudioToggle.value;
                tempConfig.NonTile = nonTileToggle.value;
                if (int.TryParse(randomSeedField.value?.Trim(), out var seed))
                {
                    tempConfig.RandomSeed = seed;
                }
                else
                {
                    tempConfig.RandomSeed = null;
                }

                config.AdvancedConfig = tempConfig;

                ToggleAdvancedScreens(false);
                _root.Remove(_advancedConfigContainer);
                _advancedConfigContainer = null!;
            });

            _root.Add(_advancedConfigContainer);
            ToggleAdvancedScreens(true);

            void ToggleAdvancedScreens(bool showAdvanced)
            {
                if (_root.childCount > 0)
                {
                    _root[0].style.display = showAdvanced ? DisplayStyle.None : DisplayStyle.Flex;
                }
                _advancedConfigContainer.style.display = showAdvanced ? DisplayStyle.Flex : DisplayStyle.None;
            }
        }

        private void Update()
        {
            if (Input.GetKeyDown(KeyCode.Escape))
            {
                ADOBase.loader.LoadSceneWithTransition(WipeDirection.StartsFromRight, "scnEditor");
            }
        }

        private void OpenVideoEncodingConfig()
        {
            var config = RenderManager.Instance.Configuration;

            var tempConfig = new VideoEncodingConfig
            {
                Codec = config.VideoConfig.Codec,
                RateControlMode = config.VideoConfig.RateControlMode,
                Bitrate = config.VideoConfig.Bitrate,
                MaxBitrate = config.VideoConfig.MaxBitrate,
                QP = config.VideoConfig.QP,
                KeyframeInterval = config.VideoConfig.KeyframeInterval,
                ForceSoftwareEncoder = config.VideoConfig.ForceSoftwareEncoder
            };

            if (_root.Contains(_videoEncodingConfigContainer))
            {
                _root.Remove(_videoEncodingConfigContainer);
            }

            // 1. 전체 화면 컨테이너 생성 및 배경 적용
            _videoEncodingConfigContainer = new VisualElement
            {
                name = "VideoEncodingSettingsContainer",
                style =
                {
                    position = Position.Absolute,
                    width = Length.Percent(100),
                    height = Length.Percent(100),
                    left = 0,
                    top = 0,
                    backgroundColor = new StyleColor(new Color(0.15f, 0.15f, 0.15f, 1.0f)),
                    justifyContent = Justify.Center,
                    alignItems = Align.Center
                }
            };

            // 2. 타이틀 로우
            var titleRow = CreateRow();
            var titleLabel = new Label("비디오 인코딩 설정")
            {
                style =
                {
                    fontSize = 24,
                    color = new StyleColor(Color.white)
                }
            };
            titleRow.Add(titleLabel);
            _videoEncodingConfigContainer.Add(titleRow);

            // 3. 코덱 로우
            var codecRow = CreateRow();
            var codecLabel = CreateFormLabel("코덱");
            var codecChoices = new List<string>(System.Enum.GetNames(typeof(Codec)));
            var codecDropdown = new DropdownField(codecChoices, tempConfig.Codec.ToString()) { name = "VideoCodec" };
            codecRow.Add(codecLabel);
            codecRow.Add(codecDropdown);
            _videoEncodingConfigContainer.Add(codecRow);

            // 4. 모드 로우
            var modeRow = CreateRow();
            var modeLabel = CreateFormLabel("모드");
            var modeChoices = new List<string>(System.Enum.GetNames(typeof(RateControlMode)));
            var modeDropdown = new DropdownField(modeChoices, tempConfig.RateControlMode.ToString()) { name = "VideoRateControlMode" };
            modeRow.Add(modeLabel);
            modeRow.Add(modeDropdown);
            _videoEncodingConfigContainer.Add(modeRow);

            // 5. 비트레이트 로우
            var bitrateRow = CreateRow();
            var bitrateLabel = CreateFormLabel("비트레이트(kbps)");
            var bitrateField = new IntegerField { name = "VideoBitrate", label = "", value = tempConfig.Bitrate };
            bitrateRow.Add(bitrateLabel);
            bitrateRow.Add(bitrateField);
            _videoEncodingConfigContainer.Add(bitrateRow);

            // 5.5. 최대 비트레이트 로우 (VBR 전용)
            var maxBitrateRow = CreateRow();
            var maxBitrateLabel = CreateFormLabel("최대 비트레이트(kbps)");
            var maxBitrateField = new IntegerField { name = "VideoMaxBitrate", label = "", value = tempConfig.MaxBitrate };
            maxBitrateRow.Add(maxBitrateLabel);
            maxBitrateRow.Add(maxBitrateField);
            _videoEncodingConfigContainer.Add(maxBitrateRow);

            // 6. QP 로우
            var qpRow = CreateRow();
            var qpLabel = CreateFormLabel("품질 (QP)");
            var qpField = new IntegerField { name = "VideoQP", label = "", value = tempConfig.QP };
            qpRow.Add(qpLabel);
            qpRow.Add(qpField);
            _videoEncodingConfigContainer.Add(qpRow);

            // 6.5. 키프레임 간격 로우 (초 단위)
            var keyframeRow = CreateRow();
            var keyframeLabel = CreateFormLabel("키프레임 간격(초)");
            var keyframeField = new DoubleField { name = "VideoKeyframeInterval", label = "", value = tempConfig.KeyframeInterval };
            keyframeRow.Add(keyframeLabel);
            keyframeRow.Add(keyframeField);
            _videoEncodingConfigContainer.Add(keyframeRow);

            // 6.75. 강제 소프트웨어 인코더 로우 (라벨 + 토글)
            var forceSoftwareRow = CreateRow();
            var forceSoftwareLabel = CreateFormLabel("소프트웨어 인코더");
            var forceSoftwareToggle = new Toggle { name = "VideoForceSoftwareEncoderToggle", label = "", value = tempConfig.ForceSoftwareEncoder };
            forceSoftwareRow.Add(forceSoftwareLabel);
            forceSoftwareRow.Add(forceSoftwareToggle);
            _videoEncodingConfigContainer.Add(forceSoftwareRow);

            // 7. QP = 0 (무손실) 경고 라벨 로우 생성
            var warningRow = CreateRow();
            warningRow.style.height = StyleKeyword.Auto;
            warningRow.style.maxHeight = StyleKeyword.Null;
            warningRow.style.minHeight = StyleKeyword.Null;

            var warningLabel = new Label("주의: QP를 0으로 설정하면 무손실 인코딩이 적용되어 용량이 매우 커질 수 있습니다.")
            {
                style =
                {
                    color = new StyleColor(new Color(1.0f, 0.8f, 0.2f)),
                    fontSize = 20,
                    unityTextAlign = TextAnchor.MiddleCenter,
                    whiteSpace = WhiteSpace.Normal
                }
            };
            warningRow.Add(warningLabel);
            _videoEncodingConfigContainer.Add(warningRow);

            var encodingValidator = new IntegerInputValidator(_videoEncodingConfigContainer);
            encodingValidator
                .AddLimits("VideoBitrate", new PositiveOnlyIntegerLimit(), new RangeIntegerLimit(1, 1000000))
                .AddLimits("VideoMaxBitrate", new PositiveOnlyIntegerLimit(), new RangeIntegerLimit(1, 1000000))
                .AddLimits("VideoQP", new RangeIntegerLimit(0, 51));
            encodingValidator.SetupValidation();

            var doubleValidator = new DoubleInputValidator(_videoEncodingConfigContainer);
            doubleValidator.AddLimits("VideoKeyframeInterval", new PositiveOnlyDoubleLimit(), new RangeDoubleLimit(0.1, 60.0));
            doubleValidator.SetupValidation();

            modeDropdown.RegisterValueChangedCallback(evt => UpdateVisibility(evt.newValue));
            qpField.RegisterValueChangedCallback(evt =>
            {
                warningRow.style.display = modeDropdown.value == RateControlMode.CQP.ToString() && evt.newValue == 0
                    ? DisplayStyle.Flex
                    : DisplayStyle.None;
            });

            // 8. 제어 버튼 로우 (취소 / 저장)
            var buttonRow = CreateRow();
            var cancelBtn = new Button { text = "취소" };
            var saveBtn = new Button { text = "저장" };
            
            buttonRow.Add(cancelBtn);
            buttonRow.Add(saveBtn);
            _videoEncodingConfigContainer.Add(buttonRow);

            cancelBtn.RegisterCallback<ClickEvent>(_ =>
            {
                ToggleScreens(false);
                _root.Remove(_videoEncodingConfigContainer);
                _videoEncodingConfigContainer = null!;
            });

            UpdateVisibility(modeDropdown.value);

            saveBtn.RegisterCallback<ClickEvent>(_ =>
            {
                if (System.Enum.TryParse<RateControlMode>(modeDropdown.value, out var mode))
                {
                    tempConfig.RateControlMode = mode;
                }
                if (System.Enum.TryParse<Codec>(codecDropdown.value, out var codec))
                {
                    tempConfig.Codec = codec;
                }
                tempConfig.Bitrate = bitrateField.value;
                tempConfig.MaxBitrate = maxBitrateField.value;
                tempConfig.QP = qpField.value;
                tempConfig.KeyframeInterval = keyframeField.value;
                tempConfig.ForceSoftwareEncoder = forceSoftwareToggle.value;

                if (tempConfig.RateControlMode == RateControlMode.VBR && tempConfig.MaxBitrate < tempConfig.Bitrate)
                {
                    tempConfig.MaxBitrate = tempConfig.Bitrate;
                }

                config.VideoConfig = tempConfig;
                
                ToggleScreens(false);
                _root.Remove(_videoEncodingConfigContainer);
                _videoEncodingConfigContainer = null!;
            });

            _root.Add(_videoEncodingConfigContainer);

            // 화면 전환 활성화
            ToggleScreens(true);
            return;

            // 화면 전환 제어
            void ToggleScreens(bool showEncoding)
            {
                if (_root.childCount > 0)
                {
                    _root[0].style.display = showEncoding ? DisplayStyle.None : DisplayStyle.Flex;
                }
                _videoEncodingConfigContainer.style.display = showEncoding ? DisplayStyle.Flex : DisplayStyle.None;
            }

            // 가시성 필터링 업데이트 (행 단위로 보임/숨김 제어)
            void UpdateVisibility(string selectedModeStr)
            {
                if (!System.Enum.TryParse<RateControlMode>(selectedModeStr, out var mode)) return;
                bitrateRow.style.display = mode is RateControlMode.CBR or RateControlMode.VBR ? DisplayStyle.Flex : DisplayStyle.None;
                maxBitrateRow.style.display = mode == RateControlMode.VBR ? DisplayStyle.Flex : DisplayStyle.None;
                qpRow.style.display = mode == RateControlMode.CQP ? DisplayStyle.Flex : DisplayStyle.None;
                warningRow.style.display = mode == RateControlMode.CQP && qpField.value == 0 ? DisplayStyle.Flex : DisplayStyle.None;
            }
        }

        private void OpenAudioEncodingConfig()
        {
            var config = RenderManager.Instance.Configuration;

            var tempAudioConfig = new AudioEncodingConfig
            {
                RenderAudio = config.AudioConfig.RenderAudio,
                AudioSampleRate = config.AudioConfig.AudioSampleRate,
                AudioChannels = config.AudioConfig.AudioChannels,
                AudioBitrate = config.AudioConfig.AudioBitrate
            };

            if (_root.Contains(_audioEncodingConfigContainer))
            {
                _root.Remove(_audioEncodingConfigContainer);
            }

            _audioEncodingConfigContainer = new VisualElement
            {
                name = "AudioEncodingSettingsContainer",
                style =
                {
                    position = Position.Absolute,
                    width = Length.Percent(100),
                    height = Length.Percent(100),
                    left = 0,
                    top = 0,
                    backgroundColor = new StyleColor(new Color(0.15f, 0.15f, 0.15f, 1.0f)),
                    justifyContent = Justify.Center,
                    alignItems = Align.Center
                }
            };

            // 1. 타이틀 로우
            var titleRow = CreateRow();
            var titleLabel = new Label("오디오 인코딩 설정")
            {
                style =
                {
                    fontSize = 24,
                    color = new StyleColor(Color.white)
                }
            };
            titleRow.Add(titleLabel);
            _audioEncodingConfigContainer.Add(titleRow);

            // 2. 오디오 렌더링 활성화 로우 (라벨 + 토글)
            var renderAudioRow = CreateRow();
            var renderAudioLabel = CreateFormLabel("오디오 렌더링 활성화");
            var renderAudioToggle = new Toggle { name = "AudioRenderAudioToggle", label = "", value = tempAudioConfig.RenderAudio };
            renderAudioRow.Add(renderAudioLabel);
            renderAudioRow.Add(renderAudioToggle);
            _audioEncodingConfigContainer.Add(renderAudioRow);

            // 3. 샘플 레이트 로우
            var sampleRateRow = CreateRow();
            var sampleRateLabel = CreateFormLabel("샘플 레이트(Hz)");
            var isOpus = config.VideoConfig.Codec is Codec.AV1 or Codec.VP9 or Codec.VVC;

            List<string> sampleRateChoices;
            string sampleRateStr;

            if (isOpus)
            {
                sampleRateChoices = new List<string> { "48000" };
                sampleRateStr = "48000";
            }
            else
            {
                sampleRateChoices = new List<string> { "44100", "48000" };
                sampleRateStr = tempAudioConfig.AudioSampleRate.ToString();
                if (sampleRateStr != "44100" && sampleRateStr != "48000")
                {
                    sampleRateStr = "44100";
                }
            }

            var sampleRateDropdown = new DropdownField(
                sampleRateChoices,
                sampleRateStr
            ) { name = "AudioSampleRate" };
            sampleRateRow.Add(sampleRateLabel);
            sampleRateRow.Add(sampleRateDropdown);
            _audioEncodingConfigContainer.Add(sampleRateRow);

            // 4. 채널 로우
            var channelsRow = CreateRow();
            var channelsLabel = CreateFormLabel("오디오 채널");
            var channelsDropdown = new DropdownField(
                new List<string> { "1 (Mono)", "2 (Stereo)" },
                tempAudioConfig.AudioChannels == 1 ? "1 (Mono)" : "2 (Stereo)"
            ) { name = "AudioChannels" };
            channelsRow.Add(channelsLabel);
            channelsRow.Add(channelsDropdown);
            _audioEncodingConfigContainer.Add(channelsRow);

            // 5. 비트레이트 로우 (kbps 단위 입력)
            var bitrateRow = CreateRow();
            var bitrateLabel = CreateFormLabel("오디오 비트레이트(kbps)");
            var bitrateField = new IntegerField { name = "AudioBitrateKbps", label = "", value = tempAudioConfig.AudioBitrate / 1000 };
            bitrateRow.Add(bitrateLabel);
            bitrateRow.Add(bitrateField);
            _audioEncodingConfigContainer.Add(bitrateRow);

            var audioValidator = new IntegerInputValidator(_audioEncodingConfigContainer);
            audioValidator.AddLimits("AudioBitrateKbps", new PositiveOnlyIntegerLimit(), new RangeIntegerLimit(32, 1024));
            audioValidator.SetupValidation();

            // 가시성 업데이트 (오디오 렌더링 비활성화 시 하위 설정 숨김)
            renderAudioToggle.RegisterValueChangedCallback(evt => UpdateAudioVisibility(evt.newValue));
            UpdateAudioVisibility(tempAudioConfig.RenderAudio);

            // 6. 제어 버튼 로우 (취소 / 저장)
            var buttonRow = CreateRow();
            var cancelBtn = new Button { text = "취소" };
            var saveBtn = new Button { text = "저장" };
            
            buttonRow.Add(cancelBtn);
            buttonRow.Add(saveBtn);
            _audioEncodingConfigContainer.Add(buttonRow);

            cancelBtn.RegisterCallback<ClickEvent>(_ =>
            {
                ToggleAudioScreens(false);
                _root.Remove(_audioEncodingConfigContainer);
                _audioEncodingConfigContainer = null!;
            });

            saveBtn.RegisterCallback<ClickEvent>(_ =>
            {
                tempAudioConfig.RenderAudio = renderAudioToggle.value;
                
                if (int.TryParse(sampleRateDropdown.value, out var sampleRate))
                {
                    tempAudioConfig.AudioSampleRate = sampleRate;
                }

                tempAudioConfig.AudioChannels = channelsDropdown.value.StartsWith("1") ? 1 : 2;
                tempAudioConfig.AudioBitrate = bitrateField.value * 1000;

                config.AudioConfig = tempAudioConfig;

                ToggleAudioScreens(false);
                _root.Remove(_audioEncodingConfigContainer);
                _audioEncodingConfigContainer = null!;
            });

            _root.Add(_audioEncodingConfigContainer);
            ToggleAudioScreens(true);
            return;

            void ToggleAudioScreens(bool showAudio)
            {
                if (_root.childCount > 0)
                {
                    _root[0].style.display = showAudio ? DisplayStyle.None : DisplayStyle.Flex;
                }
                _audioEncodingConfigContainer.style.display = showAudio ? DisplayStyle.Flex : DisplayStyle.None;
            }

            void UpdateAudioVisibility(bool isAudioEnabled)
            {
                sampleRateRow.style.display = isAudioEnabled ? DisplayStyle.Flex : DisplayStyle.None;
                channelsRow.style.display = isAudioEnabled ? DisplayStyle.Flex : DisplayStyle.None;
                bitrateRow.style.display = isAudioEnabled ? DisplayStyle.Flex : DisplayStyle.None;
            }
        }

        private void TryGoRender()
        {
            if (!ValidateInputs())
            {
                Melon<RenderMod>.Logger.Error("필수 입력 값이 비어 있거나 올바르지 않습니다. 모든 설정을 입력해 주세요.");
                return;
            }

            var widthField = _root.Q<IntegerField>("RenderWidth");
            var heightField = _root.Q<IntegerField>("RenderHeight");
            var renderFpsField = _root.Q<DoubleField>("RenderFPS");
            var videoFpsField = _root.Q<DoubleField>("VideoFPS");
            var delayField = _root.Q<DoubleField>("DelayAfterEnd");
            var showJudgementText = _root.Q<Toggle>("ShowJudgementText");

            // Copy validated values to Configuration manually
            var config = RenderManager.Instance.Configuration;
            config.RenderWidth = widthField.value;
            config.RenderHeight = heightField.value;
            config.RenderFPS = renderFpsField.value;
            config.VideoFPS = videoFpsField.value;
            config.DelayAfterEnd = delayField.value;
            
            if (showJudgementText != null)
                config.ShowJudgementText = showJudgementText.value;

            RenderManager.Instance.SetupCaptureDirectory();
            RenderManager.Instance.SetupGameScene();
        }

        private VisualElement? _presetConfigContainer;

        private bool ValidateInputs()
        {
            var widthField = _root.Q<IntegerField>("RenderWidth");
            var heightField = _root.Q<IntegerField>("RenderHeight");
            var renderFpsField = _root.Q<DoubleField>("RenderFPS");
            var videoFpsField = _root.Q<DoubleField>("VideoFPS");
            var delayField = _root.Q<DoubleField>("DelayAfterEnd");

            if (widthField == null || string.IsNullOrEmpty(widthField.text) ||
                heightField == null || string.IsNullOrEmpty(heightField.text) ||
                renderFpsField == null || string.IsNullOrEmpty(renderFpsField.text) ||
                videoFpsField == null || string.IsNullOrEmpty(videoFpsField.text) ||
                delayField == null || string.IsNullOrEmpty(delayField.text))
            {
                return false;
            }

            if (widthField.value <= 0 || heightField.value <= 0 ||
                renderFpsField.value <= 0 || videoFpsField.value <= 0 ||
                delayField.value < 0)
            {
                return false;
            }

            return true;
        }

        private void ApplyConfigToUI(RenderConfig config)
        {
            var widthField = _root.Q<IntegerField>("RenderWidth");
            var heightField = _root.Q<IntegerField>("RenderHeight");
            var renderFpsField = _root.Q<DoubleField>("RenderFPS");
            var videoFpsField = _root.Q<DoubleField>("VideoFPS");
            var delayField = _root.Q<DoubleField>("DelayAfterEnd");
            var showJudgementText = _root.Q<Toggle>("ShowJudgementText");

            if (widthField != null) widthField.value = config.RenderWidth;
            if (heightField != null) heightField.value = config.RenderHeight;
            if (renderFpsField != null) renderFpsField.value = config.RenderFPS;
            if (videoFpsField != null) videoFpsField.value = config.VideoFPS;
            if (delayField != null) delayField.value = config.DelayAfterEnd;
            if (showJudgementText != null) showJudgementText.value = config.ShowJudgementText;

            RenderManager.Instance.Configuration = config;
        }

        private void OpenPresetConfig()
        {
            if (_presetConfigContainer != null && _root.Contains(_presetConfigContainer))
            {
                _root.Remove(_presetConfigContainer);
            }

            _presetConfigContainer = new VisualElement { name = "PresetSettingsContainer" };
            _presetConfigContainer.style.position = Position.Absolute;
            _presetConfigContainer.style.width = Length.Percent(100);
            _presetConfigContainer.style.height = Length.Percent(100);
            _presetConfigContainer.style.left = 0;
            _presetConfigContainer.style.top = 0;
            _presetConfigContainer.style.backgroundColor = new StyleColor(new Color(0.15f, 0.15f, 0.15f, 1.0f));
            _presetConfigContainer.style.justifyContent = Justify.Center;
            _presetConfigContainer.style.alignItems = Align.Center;

            // Title Row
            var titleRow = CreateRow();
            titleRow.style.height = StyleKeyword.Auto;
            titleRow.style.minHeight = StyleKeyword.Null;
            titleRow.style.maxHeight = StyleKeyword.Null;
            var title = new Label("프리셋 설정")
            {
                style =
                {
                    fontSize = 36,
                    unityFontStyleAndWeight = FontStyle.Bold,
                    color = new StyleColor(Color.white),
                    unityTextAlign = TextAnchor.MiddleCenter,
                    width = 820,
                    height = StyleKeyword.Auto
                }
            };
            titleRow.Add(title);
            _presetConfigContainer.Add(titleRow);

            // ScrollView for Preset List
            var scrollView = new ScrollView
            {
                style =
                {
                    width = 820,
                    height = 380,
                    backgroundColor = new StyleColor(new Color(0.12f, 0.12f, 0.12f, 0.5f)),
                    borderTopWidth = 1,
                    borderBottomWidth = 1,
                    borderLeftWidth = 1,
                    borderRightWidth = 1,
                    borderTopColor = new StyleColor(new Color(0.25f, 0.25f, 0.25f, 0.8f)),
                    borderBottomColor = new StyleColor(new Color(0.25f, 0.25f, 0.25f, 0.8f)),
                    borderLeftColor = new StyleColor(new Color(0.25f, 0.25f, 0.25f, 0.8f)),
                    borderRightColor = new StyleColor(new Color(0.25f, 0.25f, 0.25f, 0.8f)),
                    borderTopLeftRadius = 5,
                    borderTopRightRadius = 5,
                    borderBottomLeftRadius = 5,
                    borderBottomRightRadius = 5,
                    paddingBottom = 10,
                    paddingTop = 10,
                    paddingLeft = 10,
                    paddingRight = 10,
                    marginBottom = 20
                }
            };
            _presetConfigContainer.Add(scrollView);

            // Style the vertical scrollbar
            scrollView.verticalScroller.style.width = 10f;

            var tracker = scrollView.verticalScroller.Q<VisualElement>("unity-tracker");
            if (tracker != null)
            {
                tracker.style.backgroundColor = new StyleColor(new Color(0.08f, 0.08f, 0.08f, 0.3f));
                tracker.style.borderTopWidth = 0f;
                tracker.style.borderBottomWidth = 0f;
                tracker.style.borderLeftWidth = 0f;
                tracker.style.borderRightWidth = 0f;
            }

            var dragger = scrollView.verticalScroller.Q<VisualElement>("unity-dragger");
            if (dragger != null)
            {
                dragger.style.backgroundColor = new StyleColor(new Color(0.25f, 0.25f, 0.25f, 0.8f));
                dragger.style.borderTopLeftRadius = 4f;
                dragger.style.borderTopRightRadius = 4f;
                dragger.style.borderBottomLeftRadius = 4f;
                dragger.style.borderBottomRightRadius = 4f;
                dragger.style.borderTopWidth = 0f;
                dragger.style.borderBottomWidth = 0f;
                dragger.style.borderLeftWidth = 0f;
                dragger.style.borderRightWidth = 0f;
            }

            var lowButton = scrollView.verticalScroller.Q<VisualElement>("unity-low-button");
            if (lowButton != null)
            {
                lowButton.style.display = DisplayStyle.None;
            }

            var highButton = scrollView.verticalScroller.Q<VisualElement>("unity-high-button");
            if (highButton != null)
            {
                highButton.style.display = DisplayStyle.None;
            }

            // Refresh Preset List
            System.Action refreshPresets = null!;
            refreshPresets = () =>
            {
                scrollView.Clear();
                var presets = PresetManager.GetPresets();
                if (presets.Count == 0)
                {
                    var emptyRow = CreateRow();
                    emptyRow.style.height = StyleKeyword.Auto;
                    emptyRow.style.minHeight = StyleKeyword.Null;
                    emptyRow.style.maxHeight = StyleKeyword.Null;

                    var emptyLabel = new Label("저장된 프리셋이 없습니다.")
                    {
                        style =
                        {
                            color = new StyleColor(Color.gray),
                            unityTextAlign = TextAnchor.MiddleCenter,
                            marginTop = 80,
                            fontSize = 20
                        }
                    };
                    emptyRow.Add(emptyLabel);
                    scrollView.Add(emptyRow);
                }
                else
                {
                    for (int i = 0; i < presets.Count; i++)
                    {
                        var preset = presets[i];
                        var itemRow = new VisualElement
                        {
                            style =
                            {
                                flexDirection = FlexDirection.Row,
                                justifyContent = Justify.SpaceBetween,
                                alignItems = Align.Center,
                                paddingBottom = 5,
                                paddingTop = 5,
                                borderBottomWidth = (i == presets.Count - 1) ? 0 : 1,
                                borderBottomColor = new StyleColor(new Color(0.2f, 0.2f, 0.2f, 0.8f))
                            }
                        };
                        itemRow.AddToClassList("ui-row");

                        var nameLabel = new Label(preset.Name)
                        {
                            style =
                            {
                                color = new StyleColor(Color.white),
                                fontSize = 30,
                                flexGrow = 1
                            }
                        };

                        var btnContainer = new VisualElement
                        {
                            style = { flexDirection = FlexDirection.Row }
                        };

                        var loadBtn = new Button { text = "불러오기" };
                        loadBtn.style.marginRight = 10;
                        loadBtn.style.width = 180f;
                        loadBtn.style.marginTop = 0f;
                        loadBtn.style.marginBottom = 0f;
                        loadBtn.style.backgroundColor = new StyleColor(new Color(0.18f, 0.18f, 0.22f, 1.0f));
                        loadBtn.style.borderTopColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                        loadBtn.style.borderBottomColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                        loadBtn.style.borderLeftColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                        loadBtn.style.borderRightColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                        loadBtn.style.borderTopWidth = 1f;
                        loadBtn.style.borderBottomWidth = 1f;
                        loadBtn.style.borderLeftWidth = 1f;
                        loadBtn.style.borderRightWidth = 1f;
                        loadBtn.style.borderTopLeftRadius = 8f;
                        loadBtn.style.borderTopRightRadius = 8f;
                        loadBtn.style.borderBottomLeftRadius = 8f;
                        loadBtn.style.borderBottomRightRadius = 8f;
                        loadBtn.style.paddingLeft = 10f;
                        loadBtn.style.paddingRight = 10f;
                        loadBtn.style.paddingTop = 10f;
                        loadBtn.style.paddingBottom = 10f;
                        loadBtn.style.fontSize = 30f;
                        loadBtn.style.height = 80f;
                        loadBtn.style.color = new StyleColor(Color.white);

                        loadBtn.RegisterCallback<ClickEvent>(_ =>
                        {
                            ApplyConfigToUI(preset.Config);
                            ToggleScreens(false);
                            _root.Remove(_presetConfigContainer);
                            _presetConfigContainer = null;
                        });

                        var deleteBtn = new Button { text = "삭제" };
                        deleteBtn.style.width = 120f;
                        deleteBtn.style.marginTop = 0f;
                        deleteBtn.style.marginBottom = 0f;
                        deleteBtn.style.backgroundColor = new StyleColor(new Color(0.25f, 0.12f, 0.12f, 1.0f));
                        deleteBtn.style.borderTopColor = new StyleColor(new Color(0.45f, 0.2f, 0.2f, 0.8f));
                        deleteBtn.style.borderBottomColor = new StyleColor(new Color(0.45f, 0.2f, 0.2f, 0.8f));
                        deleteBtn.style.borderLeftColor = new StyleColor(new Color(0.45f, 0.2f, 0.2f, 0.8f));
                        deleteBtn.style.borderRightColor = new StyleColor(new Color(0.45f, 0.2f, 0.2f, 0.8f));
                        deleteBtn.style.borderTopWidth = 1f;
                        deleteBtn.style.borderBottomWidth = 1f;
                        deleteBtn.style.borderLeftWidth = 1f;
                        deleteBtn.style.borderRightWidth = 1f;
                        deleteBtn.style.borderTopLeftRadius = 8f;
                        deleteBtn.style.borderTopRightRadius = 8f;
                        deleteBtn.style.borderBottomLeftRadius = 8f;
                        deleteBtn.style.borderBottomRightRadius = 8f;
                        deleteBtn.style.paddingLeft = 10f;
                        deleteBtn.style.paddingRight = 10f;
                        deleteBtn.style.paddingTop = 10f;
                        deleteBtn.style.paddingBottom = 10f;
                        deleteBtn.style.fontSize = 30f;
                        deleteBtn.style.height = 80f;
                        deleteBtn.style.color = new StyleColor(Color.white);

                        deleteBtn.RegisterCallback<ClickEvent>(_ =>
                        {
                            CommonWarningDialogUI.ShowDialog(
                                "프리셋 삭제",
                                $"'{preset.Name}' 프리셋을 정말 삭제하시겠습니까?",
                                new DialogButton("예", () =>
                                {
                                    PresetManager.DeletePreset(preset.Name);
                                    refreshPresets();
                                }),
                                new DialogButton("아니오", () => {})
                            );
                        });

                        btnContainer.Add(loadBtn);
                        btnContainer.Add(deleteBtn);

                        itemRow.Add(nameLabel);
                        itemRow.Add(btnContainer);

                        scrollView.Add(itemRow);
                    }
                }
            };

            refreshPresets();

            // Save row: Label + TextField + Save Button
            var saveRow = CreateRow();
            saveRow.style.marginBottom = 20;

            var nameLabelLabel = CreateFormLabel("새 프리셋 이름");
            nameLabelLabel.style.marginRight = 10;
            
            var nameField = new TextField { label = "", name = "NewPresetName" };
            nameField.style.width = 400;
            nameField.style.marginRight = 20;
            
            // 기존 폼 입력 필드 스타일과 맞춤
            var textInput = nameField.Q("unity-text-input");
            if (textInput != null)
            {
                textInput.style.backgroundColor = new StyleColor(new Color(0.1f, 0.1f, 0.1f, 1.0f));
                textInput.style.borderTopLeftRadius = 6f;
                textInput.style.borderTopRightRadius = 6f;
                textInput.style.borderBottomLeftRadius = 6f;
                textInput.style.borderBottomRightRadius = 6f;
                textInput.style.borderTopWidth = 1f;
                textInput.style.borderBottomWidth = 1f;
                textInput.style.borderLeftWidth = 1f;
                textInput.style.borderRightWidth = 1f;
                textInput.style.borderTopColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                textInput.style.borderBottomColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                textInput.style.borderLeftColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                textInput.style.borderRightColor = new StyleColor(new Color(0.3f, 0.3f, 0.35f, 0.8f));
                textInput.style.paddingLeft = 8f;
                textInput.style.color = new StyleColor(Color.white);
            }
            else
            {
                nameField.style.backgroundColor = new StyleColor(new Color(0.1f, 0.1f, 0.1f, 1.0f));
                nameField.style.borderTopLeftRadius = 6f;
                nameField.style.borderTopRightRadius = 6f;
                nameField.style.borderBottomLeftRadius = 6f;
                nameField.style.borderBottomRightRadius = 6f;
            }

            var saveBtn = new Button { text = "저장" };

            saveBtn.RegisterCallback<ClickEvent>(_ =>
            {
                string presetName = nameField.value;
                if (string.IsNullOrWhiteSpace(presetName))
                {
                    CommonWarningDialogUI.ShowDialog(
                        "저장 실패",
                        "프리셋 이름을 입력해 주세요.",
                        new DialogButton("확인", () => {})
                    );
                    return;
                }

                if (!ValidateInputs())
                {
                    CommonWarningDialogUI.ShowDialog(
                        "저장 실패",
                        "필수 입력 값이 비어 있거나 올바르지 않아 프리셋을 저장할 수 없습니다.",
                        new DialogButton("확인", () => {})
                    );
                    return;
                }

                try
                {
                    var widthField = _root.Q<IntegerField>("RenderWidth");
                    var heightField = _root.Q<IntegerField>("RenderHeight");
                    var renderFpsField = _root.Q<DoubleField>("RenderFPS");
                    var videoFpsField = _root.Q<DoubleField>("VideoFPS");
                    var delayField = _root.Q<DoubleField>("DelayAfterEnd");
                    var showJudgementText = _root.Q<Toggle>("ShowJudgementText");

                    var currentConfig = new RenderConfig
                    {
                        RenderWidth = widthField.value,
                        RenderHeight = heightField.value,
                        RenderFPS = renderFpsField.value,
                        VideoFPS = videoFpsField.value,
                        DelayAfterEnd = delayField.value,
                        ShowJudgementText = showJudgementText?.value ?? true,
                        VideoConfig = RenderManager.Instance.Configuration.VideoConfig,
                        AudioConfig = RenderManager.Instance.Configuration.AudioConfig,
                        AdvancedConfig = RenderManager.Instance.Configuration.AdvancedConfig
                    };

                    PresetManager.SavePreset(presetName, currentConfig);
                    nameField.value = string.Empty;
                    refreshPresets();
                }
                catch (System.Exception ex)
                {
                    CommonWarningDialogUI.ShowDialog(
                        "저장 실패",
                        $"프리셋 저장 중 오류가 발생했습니다: {ex.Message}",
                        new DialogButton("확인", () => {})
                    );
                }
            });

            saveRow.Add(nameLabelLabel);
            saveRow.Add(nameField);
            saveRow.Add(saveBtn);
            _presetConfigContainer.Add(saveRow);

            // Bottom controls: Close Button
            var closeRow = CreateRow();

            var closeBtn = new Button { text = "닫기" };

            closeBtn.RegisterCallback<ClickEvent>(_ =>
            {
                ToggleScreens(false);
                _root.Remove(_presetConfigContainer);
                _presetConfigContainer = null;
            });
            closeRow.Add(closeBtn);
            _presetConfigContainer.Add(closeRow);

            _root.Add(_presetConfigContainer);
            ToggleScreens(true);
            return;

            void ToggleScreens(bool showPreset)
            {
                if (_root.childCount > 0)
                {
                    _root[0].style.display = showPreset ? DisplayStyle.None : DisplayStyle.Flex;
                }
                _presetConfigContainer.style.display = showPreset ? DisplayStyle.Flex : DisplayStyle.None;
            }

        }

        private VisualElement CreateRow()
        {
            var row = new VisualElement
            {
                style =
                {
                    flexDirection = FlexDirection.Row,
                    height = 130,
                    maxHeight = 130,
                    minHeight = 80,
                    justifyContent = Justify.Center,
                    alignItems = Align.Center
                }
            };
            row.AddToClassList("ui-row");
            return row;
        }

        private Label CreateFormLabel(string text)
        {
            var label = new Label(text)
            {
                style =
                {
                    unityTextAlign = TextAnchor.MiddleRight,
                    color = new StyleColor(Color.white)
                }
            };
            return label;
        }
    }
}