using System;
using System.Collections.Generic;
using TMPro;

namespace UnityEngine.UI
{
    public sealed class UXBindingPropertyMetadata
    {
        public UXBindingPropertyMetadata(
            UXBindingProperty property,
            string displayName,
            UXBindingValueKind valueKind,
            Type objectReferenceType)
        {
            Property = property;
            DisplayName = displayName;
            ValueKind = valueKind;
            ObjectReferenceType = objectReferenceType;
        }

        public UXBindingProperty Property { get; }
        public string DisplayName { get; }
        public UXBindingValueKind ValueKind { get; }
        public Type ObjectReferenceType { get; }
    }

    public static class UXBindingPropertyUtility
    {
        private static readonly UXBindingPropertyMetadata[] Metadata =
        {
            new UXBindingPropertyMetadata(UXBindingProperty.GameObjectActive, "GameObject/Active", UXBindingValueKind.Boolean, null),
            new UXBindingPropertyMetadata(UXBindingProperty.CanvasGroupAlpha, "CanvasGroup/Alpha", UXBindingValueKind.Float, null),
            new UXBindingPropertyMetadata(UXBindingProperty.CanvasGroupInteractable, "CanvasGroup/Interactable", UXBindingValueKind.Boolean, null),
            new UXBindingPropertyMetadata(UXBindingProperty.CanvasGroupBlocksRaycasts, "CanvasGroup/Blocks Raycasts", UXBindingValueKind.Boolean, null),
            new UXBindingPropertyMetadata(UXBindingProperty.GraphicColor, "Graphic/Color", UXBindingValueKind.Color, null),
            new UXBindingPropertyMetadata(UXBindingProperty.GraphicMaterial, "Graphic/Material", UXBindingValueKind.ObjectReference, typeof(Material)),
            new UXBindingPropertyMetadata(UXBindingProperty.ImageSprite, "Image/Sprite", UXBindingValueKind.ObjectReference, typeof(Sprite)),
            new UXBindingPropertyMetadata(UXBindingProperty.TextContent, "Text/Content", UXBindingValueKind.String, null),
            new UXBindingPropertyMetadata(UXBindingProperty.TextColor, "Text/Color", UXBindingValueKind.Color, null),
            new UXBindingPropertyMetadata(UXBindingProperty.RectTransformAnchoredPosition, "RectTransform/Anchored Position", UXBindingValueKind.Vector2, null),
            new UXBindingPropertyMetadata(UXBindingProperty.TransformLocalScale, "Transform/Local Scale", UXBindingValueKind.Vector3, null),
            new UXBindingPropertyMetadata(UXBindingProperty.TransformLocalEulerAngles, "Transform/Local Rotation", UXBindingValueKind.Vector3, null)
        };

        public static IReadOnlyList<UXBindingPropertyMetadata> AllMetadata => Metadata;

        public static UXBindingPropertyMetadata GetMetadata(UXBindingProperty property)
        {
            for (int i = 0; i < Metadata.Length; i++)
            {
                if (Metadata[i].Property == property)
                {
                    return Metadata[i];
                }
            }

            return Metadata[0];
        }

        public static bool IsSupported(GameObject target, UXBindingProperty property)
        {
            if (target == null)
            {
                return false;
            }

            switch (property)
            {
                case UXBindingProperty.GameObjectActive:
                case UXBindingProperty.TransformLocalScale:
                case UXBindingProperty.TransformLocalEulerAngles:
                    return true;
                case UXBindingProperty.CanvasGroupAlpha:
                case UXBindingProperty.CanvasGroupInteractable:
                case UXBindingProperty.CanvasGroupBlocksRaycasts:
                    return target.GetComponent<CanvasGroup>() != null;
                case UXBindingProperty.GraphicColor:
                case UXBindingProperty.GraphicMaterial:
                    return target.GetComponent<Graphic>() != null;
                case UXBindingProperty.ImageSprite:
                    return target.GetComponent<Image>() != null;
                case UXBindingProperty.TextContent:
                case UXBindingProperty.TextColor:
                    return target.GetComponent<Text>() != null || target.GetComponent<TextMeshProUGUI>() != null;
                case UXBindingProperty.RectTransformAnchoredPosition:
                    return target.GetComponent<RectTransform>() != null;
                default:
                    return false;
            }
        }

        public static void GetSupportedProperties(GameObject target, List<UXBindingProperty> output)
        {
            output.Clear();
            if (target == null)
            {
                return;
            }

            for (int i = 0; i < Metadata.Length; i++)
            {
                UXBindingProperty property = Metadata[i].Property;
                if (IsSupported(target, property))
                {
                    output.Add(property);
                }
            }
        }

        public static void CaptureValue(GameObject target, UXBindingProperty property, UXBindingValue destination)
        {
            if (target == null || destination == null)
            {
                return;
            }

            switch (property)
            {
                case UXBindingProperty.GameObjectActive:
                    destination.BoolValue = target.activeSelf;
                    return;
                case UXBindingProperty.CanvasGroupAlpha:
                    destination.FloatValue = target.GetComponent<CanvasGroup>().alpha;
                    return;
                case UXBindingProperty.CanvasGroupInteractable:
                    destination.BoolValue = target.GetComponent<CanvasGroup>().interactable;
                    return;
                case UXBindingProperty.CanvasGroupBlocksRaycasts:
                    destination.BoolValue = target.GetComponent<CanvasGroup>().blocksRaycasts;
                    return;
                case UXBindingProperty.GraphicColor:
                    destination.ColorValue = target.GetComponent<Graphic>().color;
                    return;
                case UXBindingProperty.GraphicMaterial:
                    destination.ObjectValue = target.GetComponent<Graphic>().material;
                    return;
                case UXBindingProperty.ImageSprite:
                    destination.ObjectValue = target.GetComponent<Image>().sprite;
                    return;
                case UXBindingProperty.TextContent:
                    if (target.TryGetComponent<Text>(out Text text))
                    {
                        destination.StringValue = text.text;
                    }
                    else if (target.TryGetComponent<TextMeshProUGUI>(out TextMeshProUGUI tmp))
                    {
                        destination.StringValue = tmp.text;
                    }
                    return;
                case UXBindingProperty.TextColor:
                    if (target.TryGetComponent<Text>(out Text legacyText))
                    {
                        destination.ColorValue = legacyText.color;
                    }
                    else if (target.TryGetComponent<TextMeshProUGUI>(out TextMeshProUGUI tmpText))
                    {
                        destination.ColorValue = tmpText.color;
                    }
                    return;
                case UXBindingProperty.RectTransformAnchoredPosition:
                    destination.Vector2Value = target.GetComponent<RectTransform>().anchoredPosition;
                    return;
                case UXBindingProperty.TransformLocalScale:
                    destination.Vector3Value = target.transform.localScale;
                    return;
                case UXBindingProperty.TransformLocalEulerAngles:
                    destination.Vector3Value = target.transform.localEulerAngles;
                    return;
            }
        }

        public static void ApplyValue(GameObject target, UXBindingProperty property, UXBindingValue value)
        {
            if (target == null || value == null)
            {
                return;
            }

            switch (property)
            {
                case UXBindingProperty.GameObjectActive:
                    target.SetActive(value.BoolValue);
                    return;
                case UXBindingProperty.CanvasGroupAlpha:
                    target.GetComponent<CanvasGroup>().alpha = value.FloatValue;
                    return;
                case UXBindingProperty.CanvasGroupInteractable:
                    target.GetComponent<CanvasGroup>().interactable = value.BoolValue;
                    return;
                case UXBindingProperty.CanvasGroupBlocksRaycasts:
                    target.GetComponent<CanvasGroup>().blocksRaycasts = value.BoolValue;
                    return;
                case UXBindingProperty.GraphicColor:
                    target.GetComponent<Graphic>().color = value.ColorValue;
                    return;
                case UXBindingProperty.GraphicMaterial:
                    target.GetComponent<Graphic>().material = value.ObjectValue as Material;
                    return;
                case UXBindingProperty.ImageSprite:
                    target.GetComponent<Image>().sprite = value.ObjectValue as Sprite;
                    return;
                case UXBindingProperty.TextContent:
                    if (target.TryGetComponent<Text>(out Text text))
                    {
                        text.text = value.StringValue;
                    }
                    else if (target.TryGetComponent<TextMeshProUGUI>(out TextMeshProUGUI tmp))
                    {
                        tmp.text = value.StringValue;
                    }
                    return;
                case UXBindingProperty.TextColor:
                    if (target.TryGetComponent<Text>(out Text legacyText))
                    {
                        legacyText.color = value.ColorValue;
                    }
                    else if (target.TryGetComponent<TextMeshProUGUI>(out TextMeshProUGUI tmpText))
                    {
                        tmpText.color = value.ColorValue;
                    }
                    return;
                case UXBindingProperty.RectTransformAnchoredPosition:
                    target.GetComponent<RectTransform>().anchoredPosition = value.Vector2Value;
                    return;
                case UXBindingProperty.TransformLocalScale:
                    target.transform.localScale = value.Vector3Value;
                    return;
                case UXBindingProperty.TransformLocalEulerAngles:
                    target.transform.localEulerAngles = value.Vector3Value;
                    return;
            }
        }
    }
}