using System;
using System.Numerics;
using FFXIVClientStructs.FFXIV.Client.UI;
using FFXIVClientStructs.FFXIV.Component.GUI;
using KamiToolKit.Classes;
using KamiToolKit.Enums;
using KamiToolKit.Timelines;

namespace KamiToolKit.Nodes;

public abstract unsafe class DropDownNode<T, TU> : SimpleComponentNode where T : ButtonListNode<TU>, new() {

    public readonly NineGridNode BackgroundNode;
    public readonly ImageNode CollapseArrowNode;
    public readonly CollisionNode DropDownFocusCollisionNode;
    public readonly TextNode LabelNode;
    public readonly T OptionListNode;

    protected DropDownNode() {
        BackgroundNode = new SimpleNineGridNode {
            TexturePath = "ui/uld/DropDownA.tex",
            TextureSize = new Vector2(44.0f, 23.0f),
            TextureCoordinates = new Vector2(0.0f, 0.0f),
            Size = new Vector2(250.0f, 24.0f),
            Height = 23.0f,
            LeftOffset = 16.0f,
            RightOffset = 16.0f,
        };
        BackgroundNode.AttachNode(this);

        CollapseArrowNode = new SimpleImageNode {
            TexturePath = "ui/uld/DropDownA.tex",
            TextureCoordinates = new Vector2(44.0f, 0.0f),
            TextureSize = new Vector2(12.0f, 12.0f),
            Position = new Vector2(6.0f, 17.0f),
            Size = new Vector2(12.0f, 12.0f),
            WrapMode = WrapMode.Stretch,
        };
        CollapseArrowNode.AttachNode(this);

        LabelNode = new TextNode {
            Position = new Vector2(20.0f, 0.0f),
            Size = new Vector2(218.0f, 21.0f),
            FontType = FontType.Axis,
            FontSize = 12,
            AlignmentType = AlignmentType.Left,
            TextColor = ColorHelper.GetColor(50),
            TextOutlineColor = ColorHelper.GetColor(7),
            String = "Demo",
        };
        LabelNode.AttachNode(this);

        OptionListNode = new T {
            NodeId = NodeIdBase,
            Position = new Vector2(4.0f, 21.0f), 
            Size = new Vector2(242.0f, 243.0f), 
            IsVisible = false,
        };
        OptionListNode.AttachNode(this);

        DropDownFocusCollisionNode = new CollisionNode();
        DropDownFocusCollisionNode.AttachNode(OptionListNode.CollisionNode, NodePosition.AfterTarget);

        DropDownFocusCollisionNode.AddEvent(AtkEventType.MouseDown, Toggle);
        DropDownFocusCollisionNode.AddEvent(AtkEventType.MouseWheel, Toggle);

        BuildTimelines();

        Timeline?.PlayAnimation(4);

        CollisionNode.ShowClickableCursor = true;
        CollisionNode.AddEvent(AtkEventType.MouseOver, () => Timeline?.PlayAnimation(IsCollapsed ? 2 : 9));
        CollisionNode.AddEvent(AtkEventType.MouseOut, () => Timeline?.PlayAnimation(IsCollapsed ? 4 : 11));
        CollisionNode.AddEvent(AtkEventType.MouseClick, Toggle);

        Component->SoundEffectId = 1;
        Component->SetEnabledState(true);
    }

    public bool IsCollapsed { get; set; } = true;

    public int MaxListOptions {
        get => OptionListNode.MaxButtons;
        set => OptionListNode.MaxButtons = value;
    }

    public TU? SelectedOption {
        get => OptionListNode.SelectedOption;
        set {
            OptionListNode.SelectedOption = value;
            UpdateLabel(value);
        }
    }

    protected override void OnSizeChanged() {
        base.OnSizeChanged();

        CollisionNode.Size = Size;
        BackgroundNode.Size = new Vector2(Width, Height - 1.0f);
        LabelNode.Size = new Vector2(Width - 32.0f, Height - 3.0f);

        OptionListNode.Width = Width - 8.0f;
        OptionListNode.Position = new Vector2(4.0f, Height - 3.0f);
    }

    public Action<bool>? OnCollapseToggled { get; set; }
    public Action? OnUncollapsed { get; set; }
    public Action? OnCollapsed { get; set; }

    public void Collapse(bool playSoundEffect = true) {
        if (!IsEnabled) return;
        if (IsCollapsed) return;

        IsCollapsed = true;
        Timeline?.PlayAnimation(4);
        OptionListNode.Toggle(false);

        // TODO: replace this (and in Uncollapse) with just a check for playSoundEffect and a call to Component->PlaySoundEffect();
        // when https://github.com/aers/FFXIVClientStructs/commit/e5b6fc51 landed in Dalamud
        if (playSoundEffect && Component->SoundEffectId is not -1)
            UIGlobals.PlaySoundEffect((uint)Component->SoundEffectId);

        OptionListNode.ReattachNode(this);

        // Need to reset position after reattaching, so screen position is recalculated correctly
        OptionListNode.Position = Size with { X = 0.0f } + new Vector2(4.0f, -4.0f);

        OnCollapsed?.Invoke();
    }

    public void Uncollapse(bool playSoundEffect = true) {
        if (!IsEnabled) return;
        if (!IsCollapsed) return;

        IsCollapsed = false;
        Timeline?.PlayAnimation(11);
        OptionListNode.Toggle(true);

        if (playSoundEffect && Component->SoundEffectId is not -1)
            UIGlobals.PlaySoundEffect((uint)Component->SoundEffectId);

        if (ParentAddon is not null) {
            OptionListNode.Position = (ScreenPosition - ParentAddon->Position) / ParentAddon->Scale + Size with { X = 0.0f } + new Vector2(4.0f, -4.0f);
            MoveListOnScreen();

            DropDownFocusCollisionNode.Position = -OptionListNode.Position;
            DropDownFocusCollisionNode.Size = ParentAddon->RootSize;

            OptionListNode.ReattachNode(ParentAddon->RootNode);
        }

        OnUncollapsed?.Invoke();
    }

    public void Toggle() {
        Toggle(true);
    }

    public void Toggle(bool playSoundEffect) {
        if (!IsEnabled) return;

        if (IsCollapsed) {
            Uncollapse(playSoundEffect);
        }
        else {
            Collapse(playSoundEffect);
        }

        OnCollapseToggled?.Invoke(IsCollapsed);
    }

    public void RecalculateScrollParams()
        => OptionListNode.RecalculateScrollParams();
    
    private void MoveListOnScreen() {
        var screenSize = AtkStage.Instance()->ScreenSize;
        var parentAddon = RaptureAtkUnitManager.Instance()->GetAddonByNode(ResNode);
        if (parentAddon == null) {
            return;
        }

        var scale = parentAddon->Scale;
        var scaledListSize = OptionListNode.Size * scale;
        if (ScreenPosition.X + scaledListSize.X > screenSize.Width) {
            OptionListNode.X += (screenSize.Width - OptionListNode.ScreenPosition.X - scaledListSize.X - 4f) / scale;
        }
        else if (ScreenPosition.X < 0) {
            OptionListNode.X -= OptionListNode.ScreenPosition.X / scale;
        }

        if (OptionListNode.ScreenPosition.Y + scaledListSize.Y > screenSize.Height) {
            OptionListNode.Y += (screenSize.Height - OptionListNode.ScreenPosition.Y - scaledListSize.Y) / scale;
        }
    }

    protected abstract void UpdateLabel(TU? option);

    private void BuildTimelines() {
        AddTimeline(new TimelineBuilder()
            .BeginFrameSet(1, 120)
            .AddLabel(1, 1, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(9, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(10, 2, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(19, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(20, 3, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(29, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(30, 7, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(39, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(40, 6, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(49, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(50, 4, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(59, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(60, 8, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(69, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(70, 9, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(79, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(80, 10, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(89, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(90, 14, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(99, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(100, 13, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(109, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .AddLabel(110, 11, AtkTimelineJumpBehavior.Start, 0)
            .AddLabel(120, 0, AtkTimelineJumpBehavior.PlayOnce, 0)
            .EndFrameSet()
            .Build()
        );

        CollapseArrowNode.AddTimeline(new TimelineBuilder()
            .BeginFrameSet(1, 9)
            .AddFrame(1, new Vector2(6, 17))
            .AddFrame(1, rotation: 4.712389f)
            .AddFrame(1, alpha: 255)
            .AddFrame(1, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(10, 19)
            .AddFrame(10, new Vector2(6, 17))
            .AddFrame(12, new Vector2(6, 17))
            .AddFrame(10, rotation: 4.712389f)
            .AddFrame(12, rotation: 4.712389f)
            .AddFrame(10, alpha: 255)
            .AddFrame(12, alpha: 255)
            .AddFrame(10, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(12, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(20, 29)
            .AddFrame(20, new Vector2(6, 18))
            .AddFrame(20, rotation: 4.712389f)
            .AddFrame(20, alpha: 255)
            .AddFrame(20, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(30, 39)
            .AddFrame(30, new Vector2(6, 17))
            .AddFrame(30, rotation: 4.712389f)
            .AddFrame(30, alpha: 178)
            .AddFrame(30, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(50, 50, 50))
            .EndFrameSet()
            .BeginFrameSet(40, 49)
            .AddFrame(40, new Vector2(6, 17))
            .AddFrame(40, rotation: 4.712389f)
            .AddFrame(40, alpha: 255)
            .AddFrame(40, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(50, 59)
            .AddFrame(50, new Vector2(6, 17))
            .AddFrame(52, new Vector2(6, 17))
            .AddFrame(50, rotation: 4.712389f)
            .AddFrame(52, rotation: 4.712389f)
            .AddFrame(50, alpha: 255)
            .AddFrame(52, alpha: 255)
            .AddFrame(50, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(52, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(60, 69)
            .AddFrame(60, new Vector2(6, 6))
            .AddFrame(60, rotation: 0)
            .AddFrame(60, alpha: 255)
            .AddFrame(60, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(70, 79)
            .AddFrame(70, new Vector2(6, 6))
            .AddFrame(72, new Vector2(6, 6))
            .AddFrame(70, rotation: 0)
            .AddFrame(72, rotation: 0)
            .AddFrame(70, alpha: 255)
            .AddFrame(72, alpha: 255)
            .AddFrame(70, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(72, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(80, 89)
            .AddFrame(80, new Vector2(6, 7))
            .AddFrame(80, rotation: 0)
            .AddFrame(80, alpha: 255)
            .AddFrame(80, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(90, 99)
            .AddFrame(90, new Vector2(6, 6))
            .AddFrame(90, rotation: 0)
            .AddFrame(90, alpha: 178)
            .AddFrame(90, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(50, 50, 50))
            .EndFrameSet()
            .BeginFrameSet(100, 109)
            .AddFrame(100, new Vector2(6, 6))
            .AddFrame(100, rotation: 0)
            .AddFrame(100, alpha: 255)
            .AddFrame(100, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(110, 120)
            .AddFrame(110, new Vector2(6, 6))
            .AddFrame(112, new Vector2(6, 6))
            .AddFrame(110, rotation: 0)
            .AddFrame(112, rotation: 0)
            .AddFrame(110, alpha: 255)
            .AddFrame(112, alpha: 255)
            .AddFrame(110, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(112, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .Build()
        );

        LabelNode.AddTimeline(new TimelineBuilder()
            .BeginFrameSet(1, 9)
            .AddFrame(1, new Vector2(20, 0))
            .AddFrame(1, alpha: 255)
            .AddFrame(1, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(10, 19)
            .AddFrame(10, new Vector2(20, 0))
            .AddFrame(10, alpha: 255)
            .AddFrame(10, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(20, 29)
            .AddFrame(20, new Vector2(20, 1))
            .AddFrame(20, alpha: 255)
            .AddFrame(20, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(30, 39)
            .AddFrame(30, new Vector2(20, 0))
            .AddFrame(30, alpha: 153)
            .AddFrame(30, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(80, 80, 80))
            .EndFrameSet()
            .BeginFrameSet(40, 49)
            .AddFrame(40, new Vector2(20, 0))
            .AddFrame(40, alpha: 255)
            .AddFrame(40, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(50, 59)
            .AddFrame(50, new Vector2(20, 0))
            .AddFrame(50, alpha: 255)
            .AddFrame(50, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(60, 69)
            .AddFrame(60, new Vector2(20, 0))
            .AddFrame(60, alpha: 255)
            .AddFrame(60, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(70, 79)
            .AddFrame(70, new Vector2(20, 0))
            .AddFrame(70, alpha: 255)
            .AddFrame(70, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(80, 89)
            .AddFrame(80, new Vector2(20, 1))
            .AddFrame(80, alpha: 255)
            .AddFrame(80, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(90, 99)
            .AddFrame(90, new Vector2(20, 0))
            .AddFrame(90, alpha: 153)
            .AddFrame(90, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(80, 80, 80))
            .EndFrameSet()
            .BeginFrameSet(100, 109)
            .AddFrame(100, new Vector2(20, 0))
            .AddFrame(100, alpha: 255)
            .AddFrame(100, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(110, 120)
            .AddFrame(110, new Vector2(20, 0))
            .AddFrame(110, alpha: 255)
            .AddFrame(110, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .Build()
        );

        BackgroundNode.AddTimeline(new TimelineBuilder()
            .BeginFrameSet(1, 9)
            .AddFrame(1, new Vector2(0, 0))
            .AddFrame(1, alpha: 255)
            .AddFrame(1, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(10, 19)
            .AddFrame(10, new Vector2(0, 0))
            .AddFrame(12, new Vector2(0, 0))
            .AddFrame(10, alpha: 255)
            .AddFrame(12, alpha: 255)
            .AddFrame(10, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(12, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(20, 29)
            .AddFrame(20, new Vector2(0, 1))
            .AddFrame(20, alpha: 255)
            .AddFrame(20, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(30, 39)
            .AddFrame(30, new Vector2(0, 0))
            .AddFrame(30, alpha: 178)
            .AddFrame(30, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(50, 50, 50))
            .EndFrameSet()
            .BeginFrameSet(40, 49)
            .AddFrame(40, new Vector2(0, 0))
            .AddFrame(40, alpha: 255)
            .AddFrame(40, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(50, 59)
            .AddFrame(50, new Vector2(0, 0))
            .AddFrame(52, new Vector2(0, 0))
            .AddFrame(50, alpha: 255)
            .AddFrame(52, alpha: 255)
            .AddFrame(50, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(52, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(60, 69)
            .AddFrame(60, new Vector2(0, 0))
            .AddFrame(60, alpha: 255)
            .AddFrame(60, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(70, 79)
            .AddFrame(70, new Vector2(0, 0))
            .AddFrame(72, new Vector2(0, 0))
            .AddFrame(70, alpha: 255)
            .AddFrame(72, alpha: 255)
            .AddFrame(70, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(72, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(80, 89)
            .AddFrame(80, new Vector2(0, 1))
            .AddFrame(80, alpha: 255)
            .AddFrame(80, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(90, 99)
            .AddFrame(90, new Vector2(0, 0))
            .AddFrame(90, alpha: 178)
            .AddFrame(90, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(50, 50, 50))
            .EndFrameSet()
            .BeginFrameSet(100, 109)
            .AddFrame(100, new Vector2(0, 0))
            .AddFrame(100, alpha: 255)
            .AddFrame(100, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .BeginFrameSet(110, 120)
            .AddFrame(110, new Vector2(0, 0))
            .AddFrame(112, new Vector2(0, 0))
            .AddFrame(110, alpha: 255)
            .AddFrame(112, alpha: 255)
            .AddFrame(110, addColor: new Vector3(16, 16, 16), multiplyColor: new Vector3(100, 100, 100))
            .AddFrame(112, addColor: new Vector3(0, 0, 0), multiplyColor: new Vector3(100, 100, 100))
            .EndFrameSet()
            .Build()
        );
    }
}