using System.Linq;
using System.Numerics;
using Content.Client._Sunrise.InteractionsPanel.Models;
using Content.Shared._Sunrise.InteractionsPanel.Data.Prototypes;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.CustomControls;
using Robust.Client.UserInterface.XAML;
using Robust.Client.Graphics;
using Robust.Client.Utility;
using Robust.Shared.Audio.Systems;
using Robust.Shared.Player;
using Robust.Shared.Prototypes;

namespace Content.Client._Sunrise.InteractionsPanel;

[GenerateTypedNameReferences]
public sealed partial class CustomInteractionEditor : DefaultWindow
{
    #region Color Scheme

    private static readonly Color PrimaryColor = new Color(0, 212, 255);      // #00d4ff
    private static readonly Color SecondaryColor = new Color(184, 230, 255);   // #b8e6ff
    private static readonly Color BackgroundDark = new Color(15, 20, 25);      // #0f1419
    private static readonly Color BackgroundLight = new Color(36, 51, 64);     // #243340
    private static readonly Color BackgroundHighlight = new Color(44, 68, 85); // #2c4455
    private static readonly Color TextMuted = new Color(122, 157, 179);        // #7a9db3

    #endregion

    #region Dependencies

    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
    [Dependency] protected readonly ILocalizationManager Loc = default!;
    [Dependency] private readonly CustomInteractionService _customInteractionService = default!;

    private readonly SharedAudioSystem _audio = default!;

    #endregion

    #region State

    private CustomInteraction _interaction;
    private Action<bool>? _onClose;

    private readonly Dictionary<int, string> _categoryIds = new();
    private readonly Dictionary<int, string> _iconIds = new();
    private readonly Dictionary<int, string> _effectIds = new();
    private readonly Dictionary<int, string> _soundIds = new();

    private const int MaxNameLength = 64;
    private const int MaxDescriptionLength = 256;
    private const int MaxMessageLength = 128;

    #endregion

    #region Constructor

    public CustomInteractionEditor(CustomInteraction? interaction = null)
    {
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);

        var iManager = IoCManager.Resolve<IEntityManager>();
        _audio = iManager.EntitySysManager.GetEntitySystem<SharedAudioSystem>();

        var isNewInteraction = interaction == null;
        _interaction = interaction ?? new CustomInteraction
        {
            Id = string.Empty,
            Name = string.Empty,
            Description = string.Empty,
            IconId = string.Empty,
            CategoryId = string.Empty,
            InteractionMessages = new List<string>(),
            SoundIds = new List<string>(),
            SpawnsEffect = false,
            EffectChance = 0.5f,
            EntityEffectId = string.Empty,
            Cooldown = 5.0f
        };

        Title = isNewInteraction ? "Создание взаимодействия" : "Редактирование взаимодействия";

        InitializeUI();
        InitializeEvents();
        LoadData();
    }

    #endregion

    #region Initialization

    private void InitializeUI()
    {
        EffectChanceSlider.OnValueChanged += OnEffectChanceChanged;
        CooldownSlider.OnValueChanged += OnCooldownChanged;

        AddMessageButton.OnPressed += OnAddMessagePressed;
        AddSoundButton.OnPressed += OnAddSoundPressed;
        SaveButton.OnPressed += OnSavePressed;
        CancelButton.OnPressed += OnCancelPressed;
        TestSoundButton.OnPressed += OnTestSoundPressed;

        SpawnsEffectCheckBox.OnToggled += OnSpawnsEffectToggled;

        CategoryOption.OnItemSelected += OnCategorySelected;
        IconOption.OnItemSelected += OnIconSelected;
        EffectOption.OnItemSelected += OnEffectSelected;
        SoundOption.OnItemSelected += OnSoundSelected;

        UpdateEffectChanceLabel(EffectChanceSlider.Value);
        UpdateCooldownLabel(CooldownSlider.Value);
    }

    private void OnCategorySelected(OptionButton.ItemSelectedEventArgs args)
    {
        CategoryOption.SelectId(args.Id);
    }

    private void OnIconSelected(OptionButton.ItemSelectedEventArgs args)
    {
        IconOption.SelectId(args.Id);
        UpdateIconPreview();
    }

    private void OnEffectSelected(OptionButton.ItemSelectedEventArgs args)
    {
        EffectOption.SelectId(args.Id);
    }

    private void OnSoundSelected(OptionButton.ItemSelectedEventArgs args)
    {
        SoundOption.SelectId(args.Id);
    }

    private void InitializeEvents()
    {
        SpawnsEffectCheckBox.OnToggled += _ => UpdateEffectControlsEnabled();
    }

    private void LoadData()
    {
        _categoryIds.Clear();
        _iconIds.Clear();
        _effectIds.Clear();
        _soundIds.Clear();

        CategoryOption.Clear();
        int categoryId = 0;
        CategoryOption.AddItem("Выберите категорию");
        _categoryIds[categoryId] = string.Empty;

        categoryId++;
        foreach (var category in _prototypeManager.EnumeratePrototypes<InteractionCategoryPrototype>().OrderBy(c => Loc.GetString(c.Name)))
        {
            _categoryIds[categoryId] = category.ID;
            CategoryOption.AddItem(Loc.GetString(category.Name), categoryId);

            if (category.ID == _interaction.CategoryId)
            {
                CategoryOption.SelectId(categoryId);
            }

            categoryId++;
        }

        IconOption.Clear();
        int iconId = 0;
        IconOption.AddItem("Нет");
        _iconIds[iconId] = string.Empty;

        iconId++;
        foreach (var icon in _prototypeManager.EnumeratePrototypes<InteractionIconPrototype>().OrderBy(i => Loc.GetString(i.Name)))
        {
            _iconIds[iconId] = icon.ID;
            IconOption.AddItem(Loc.GetString(icon.Name), iconId);

            if (icon.ID == _interaction.IconId)
            {
                IconOption.SelectId(iconId);
            }

            iconId++;
        }

        EffectOption.Clear();
        int effectId = 0;
        EffectOption.AddItem("Нет");
        _effectIds[effectId] = string.Empty;

        effectId++;
        foreach (var effect in _prototypeManager.EnumeratePrototypes<InteractionEntityEffectPrototype>().OrderBy(e => Loc.GetString(e.Name)))
        {
            _effectIds[effectId] = effect.ID;
            EffectOption.AddItem(Loc.GetString(effect.Name), effectId);

            if (effect.ID == _interaction.EntityEffectId)
            {
                EffectOption.SelectId(effectId);
            }

            effectId++;
        }

        SoundOption.Clear();
        int soundId = 0;
        SoundOption.AddItem("Выберите звук");
        _soundIds[soundId] = string.Empty;

        soundId++;
        foreach (var sound in _prototypeManager.EnumeratePrototypes<InteractionSoundPrototype>().OrderBy(s => Loc.GetString(s.Name)))
        {
            _soundIds[soundId] = sound.ID;
            SoundOption.AddItem(Loc.GetString(sound.Name), soundId);
            soundId++;
        }

        NameInput.Text = _interaction.Name;
        DescriptionInput.Text = _interaction.Description;

        SpawnsEffectCheckBox.Pressed = _interaction.SpawnsEffect;
        EffectChanceSlider.Value = _interaction.EffectChance;
        CooldownSlider.Value = _interaction.Cooldown;

        MessagesContainer.DisposeAllChildren();
        foreach (var message in _interaction.InteractionMessages)
        {
            AddMessageToList(message);
        }

        SoundsContainer.DisposeAllChildren();
        foreach (var soundId2 in _interaction.SoundIds)
        {
            if (_prototypeManager.TryIndex<InteractionSoundPrototype>(soundId2, out var soundProto))
            {
                AddSoundToList(soundId2, soundProto.Name);
            }
        }

        UpdateEffectControlsEnabled();
        UpdateIconPreview();
    }

    #endregion

    #region UI Updates

    private void UpdateEffectChanceLabel(float value)
    {
        var percentage = (int)(value * 100);
        EffectChanceLabel.Text = $"{percentage}%";
    }

    private void UpdateCooldownLabel(float value)
    {
        CooldownLabel.Text = $"{(int)value}с";
    }

    private void UpdateEffectControlsEnabled()
    {
        var enabled = SpawnsEffectCheckBox.Pressed;
        EffectChanceSlider.Disabled = !enabled;
        EffectOption.Disabled = !enabled;
        EffectChanceLabel.Modulate = enabled ? Color.White : TextMuted;
    }

    private void UpdateIconPreview()
    {
        if (!_iconIds.TryGetValue(IconOption.SelectedId, out var iconId) || string.IsNullOrEmpty(iconId))
        {
            IconPreview.Texture = null;
            return;
        }

        if (_prototypeManager.TryIndex<InteractionIconPrototype>(iconId, out var iconProto))
        {
            IconPreview.Texture = iconProto.Icon.Frame0();
        }
    }

    #endregion

    #region Event Handlers

    private void OnEffectChanceChanged(Robust.Client.UserInterface.Controls.Range range)
    {
        UpdateEffectChanceLabel(range.Value);
    }

    private void OnCooldownChanged(Robust.Client.UserInterface.Controls.Range range)
    {
        UpdateCooldownLabel(range.Value);
    }

    private void OnSpawnsEffectToggled(BaseButton.ButtonToggledEventArgs args)
    {
        UpdateEffectControlsEnabled();
    }

    private void OnAddMessagePressed(BaseButton.ButtonEventArgs args)
    {
        var message = NewMessageInput.Text.Trim();
        if (string.IsNullOrEmpty(message))
            return;

        if (message.Length > MaxMessageLength)
        {
            ShowError($"Сообщение слишком длинное (макс. {MaxMessageLength} символов)");
            return;
        }

        _interaction.InteractionMessages.Add(message);
        AddMessageToList(message);
        NewMessageInput.Text = string.Empty;
    }

    private void OnAddSoundPressed(BaseButton.ButtonEventArgs args)
    {
        if (SoundOption.SelectedId == 0)
            return;

        if (!_soundIds.TryGetValue(SoundOption.SelectedId, out var selectedSoundId) || string.IsNullOrEmpty(selectedSoundId))
            return;

        if (_interaction.SoundIds.Contains(selectedSoundId))
            return;

        if (_prototypeManager.TryIndex<InteractionSoundPrototype>(selectedSoundId, out var soundProto))
        {
            _interaction.SoundIds.Add(selectedSoundId);
            AddSoundToList(selectedSoundId, soundProto.Name);
        }
    }

    private void OnTestSoundPressed(BaseButton.ButtonEventArgs args)
    {
        PlayTestSound();
    }

    private void OnSavePressed(BaseButton.ButtonEventArgs args)
    {
        if (string.IsNullOrEmpty(NameInput.Text.Trim()))
        {
            ShowError("Имя взаимодействия не может быть пустым");
            return;
        }

        if (_interaction.Name.Length > MaxNameLength)
        {
            ShowError($"Имя слишком длинное (макс. {MaxNameLength} символов)");
            return;
        }

        if (_interaction.Description.Length > MaxDescriptionLength)
        {
            ShowError($"Описание слишком длинное (макс. {MaxDescriptionLength} символов)");
            return;
        }

        if (_interaction.InteractionMessages.Count == 0)
        {
            ShowError("Добавьте хотя бы одно сообщение взаимодействия");
            return;
        }

        if (!_categoryIds.TryGetValue(CategoryOption.SelectedId, out var categoryId) || string.IsNullOrEmpty(categoryId))
        {
            ShowError("Выберите категорию");
            return;
        }

        _interaction.Name = NameInput.Text.Trim();
        _interaction.Description = DescriptionInput.Text.Trim();
        _interaction.CategoryId = categoryId;

        _iconIds.TryGetValue(IconOption.SelectedId, out var iconId);
        _interaction.IconId = iconId ?? string.Empty;

        _interaction.SpawnsEffect = SpawnsEffectCheckBox.Pressed;
        _interaction.EffectChance = EffectChanceSlider.Value;

        _effectIds.TryGetValue(EffectOption.SelectedId, out var effectId);
        _interaction.EntityEffectId = effectId ?? string.Empty;

        _interaction.Cooldown = CooldownSlider.Value;

        _customInteractionService.SaveInteraction(_interaction);

        _onClose?.Invoke(true);
        Close();
    }

    private void OnCancelPressed(BaseButton.ButtonEventArgs args)
    {
        _onClose?.Invoke(false);
        Close();
    }

    #endregion

    #region Helper Methods

    private void AddMessageToList(string message)
    {
        var panelContainer = new PanelContainer
        {
            Margin = new Thickness(0, 1, 0, 1),
            HorizontalExpand = true,
            MinHeight = 24
        };

        panelContainer.PanelOverride = new StyleBoxFlat
        {
            BackgroundColor = BackgroundHighlight,
            BorderColor = BackgroundLight,
            BorderThickness = new Thickness(1)
        };

        var container = new BoxContainer
        {
            Orientation = BoxContainer.LayoutOrientation.Horizontal,
            HorizontalExpand = true,
            VerticalAlignment = VAlignment.Center,
            Margin = new Thickness(6, 2)
        };

        var label = new Label
        {
            Text = message,
            HorizontalExpand = true,
            FontColorOverride = Color.White,
            ClipText = true,
            VerticalAlignment = VAlignment.Center,
            Margin = new Thickness(0, 0, 4, 0)
        };

        var removeButton = new Button
        {
            Text = "✕",
            StyleClasses = { StyleClass.ButtonSquare },
            MinWidth = 22,
            MinHeight = 22,
            Label = { FontColorOverride = PrimaryColor}
        };

        removeButton.OnPressed += _ =>
        {
            _interaction.InteractionMessages.Remove(message);
            panelContainer.Dispose();
        };

        container.AddChild(label);
        container.AddChild(removeButton);
        panelContainer.AddChild(container);

        MessagesContainer.AddChild(panelContainer);
    }

    private void AddSoundToList(string soundId, string soundName)
    {
        var panelContainer = new PanelContainer
        {
            Margin = new Thickness(0, 1, 0, 1),
            HorizontalExpand = true,
            MinHeight = 24
        };

        panelContainer.PanelOverride = new StyleBoxFlat
        {
            BackgroundColor = BackgroundHighlight,
            BorderColor = BackgroundLight,
            BorderThickness = new Thickness(1)
        };

        var container = new BoxContainer
        {
            Orientation = BoxContainer.LayoutOrientation.Horizontal,
            HorizontalExpand = true,
            VerticalAlignment = VAlignment.Center,
            Margin = new Thickness(6, 2)
        };

        var label = new Label
        {
            Text = soundName,
            HorizontalExpand = true,
            FontColorOverride = Color.White,
            ClipText = true,
            VerticalAlignment = VAlignment.Center,
            Margin = new Thickness(0, 0, 4, 0)
        };

        var removeButton = new Button
        {
            Text = "✕",
            StyleClasses = { StyleClass.ButtonSquare },
            MinWidth = 22,
            MinHeight = 22,
            Label = { FontColorOverride = PrimaryColor}
        };

        removeButton.OnPressed += _ =>
        {
            _interaction.SoundIds.Remove(soundId);
            panelContainer.Dispose();
        };

        container.AddChild(label);
        container.AddChild(removeButton);
        panelContainer.AddChild(container);

        SoundsContainer.AddChild(panelContainer);
    }

    private void ShowError(string message)
    {
        var dialog = new DefaultWindow
        {
            Title = "Ошибка",
            MinSize = new Vector2(300, 150),
            SetSize = new Vector2(300, 150)
        };

        var dialogPanel = new PanelContainer
        {
            VerticalExpand = true,
            HorizontalExpand = true
        };

        dialogPanel.PanelOverride = new StyleBoxFlat
        {
            BackgroundColor = BackgroundDark
        };

        var dialogVBox = new BoxContainer
        {
            Orientation = BoxContainer.LayoutOrientation.Vertical,
            Margin = new Thickness(16),
            VerticalExpand = true
        };

        var errorLabel = new Label
        {
            Text = message,
            HorizontalExpand = true,
            HorizontalAlignment = HAlignment.Center,
            VerticalAlignment = VAlignment.Center,
            Margin = new Thickness(0, 0, 0, 16),
            FontColorOverride = SecondaryColor
        };

        var closeButton = new Button
        {
            Text = "ОК",
            StyleClasses = { StyleClass.ButtonSquare },
            HorizontalAlignment = HAlignment.Center,
            MinWidth = 80,
            MinHeight = 30
        };

        closeButton.OnPressed += _ => dialog.Close();

        dialogVBox.AddChild(errorLabel);
        dialogVBox.AddChild(closeButton);
        dialogPanel.AddChild(dialogVBox);
        dialog.AddChild(dialogPanel);
        dialog.OpenCentered();
    }

    private void PlayTestSound()
    {
        if (!_soundIds.TryGetValue(SoundOption.SelectedId, out var selectedSoundId) || string.IsNullOrEmpty(selectedSoundId))
            return;

        if (_prototypeManager.TryIndex<InteractionSoundPrototype>(selectedSoundId, out var soundProto))
        {
            _audio.PlayGlobal(soundProto.Sound, Filter.Local(), false);
        }
    }

    #endregion

    #region Public Methods

    public void SetCloseCallback(Action<bool> callback)
    {
        _onClose = callback;
    }

    #endregion
}