using System.Numerics;
using Content.Client.Resources;
using Content.Client.Stylesheets;
using Content.Shared.Preferences;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.XAML;
using static Content.Client.Stylesheets.StylesheetHelpers;

namespace Content.Client.Lobby.UI;

/// <summary>
/// A toggle button with a lock icon meant to lock values for randomizing in the character editor screen.
/// </summary>
[GenerateTypedNameReferences]
public sealed partial class RandomizeLockButton : BoxContainer
{
    /// <summary>
    /// Which value this button locks.
    /// </summary>
    public HumanoidCharacterProfile.RandomizeCfg For { get; set; }

    /// <summary>
    /// Name of the button
    /// </summary>
    public string? LabelText { get => LockName.Text; set => LockName.Text = value; }

    /// <summary>
    /// Tracks which values are allowed to be randomized.
    /// </summary>
    public static HumanoidCharacterProfile.RandomizeCfg RandomizeCfg = HumanoidCharacterProfile.RandomizeConfigAll;

    public RandomizeLockButton()
    {
        RobustXamlLoader.Load(this);

        // Ensure we reset this value to default every time the button is created
        // Otherwise toggling, disconnecting and reconnecting will leave the cfg in an inconsistent state
        RandomizeCfg = HumanoidCharacterProfile.RandomizeConfigAll;

        LockButton.OnToggled += args => HandleToggle(args.Pressed);
    }

    private void HandleToggle(bool toggle)
    {
        if (For == default)
            return;
        if (toggle)
        {
            // if pressed, disable specific randomize by setting its bit to 0
            RandomizeCfg &= ~For;
        }
        else
        {
            // if not pressed, enable specific randomize by setting its bit to 1
            RandomizeCfg |= For;
        }
    }
}

[CommonSheetlet]
public sealed class RandomizeLockButtonStyles : Sheetlet<PalettedStylesheet>
{
    public override StyleRule[] GetRules(PalettedStylesheet sheet, object config)
    {
        var textureLocked = ResCache.GetTexture("/Textures/Interface/VerbIcons/lock.svg.192dpi.png");
        var textureUnlocked = ResCache.GetTexture("/Textures/Interface/VerbIcons/unlock.svg.192dpi.png");

        return
        [
            E<TextureButton>()
                .Identifier("RandomizerLockButton")
                .Modulate(Color.FromHsl(new Vector4(0f, 0f, .65f, 1f)))
                .Prop(TextureButton.StylePropertyTexture, textureUnlocked)
                .Margin(new Thickness(0f, 0f, 3f, 0f)),

            E<TextureButton>()
                .Identifier("RandomizerLockButton")
                .PseudoHovered()
                .Modulate(Color.WhiteSmoke)
                .Prop(TextureButton.StylePropertyTexture, textureLocked),

            E<TextureButton>()
                .Identifier("RandomizerLockButton")
                .PseudoPressed()
                .Modulate(Color.WhiteSmoke)
                .Prop(TextureButton.StylePropertyTexture, textureLocked),
        ];
    }
}