using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;

namespace Misaki.HdrpToon.Editor
{
    public class UTSRendererSettingProvider : SettingsProvider
    {
        class Styles
        {
            public static GUIContent hairShadow = new("Hair Shadow");
            public static GUIContent hairBlending = new("Hair Blending");
            public static GUIContent outline = new("Outline");
        }

        private SerializedObject _customSettings;

        public UTSRendererSettingProvider(string path, SettingsScope scopes, IEnumerable<string> keywords = null) : base(path, scopes, keywords)
        {
        }

        public override void OnActivate(string searchContext, VisualElement rootElement)
        {
            _customSettings = UTSRenderPassSettings.GetSerializedSettings();
        }

        public override void OnGUI(string searchContext)
        {
            EditorGUI.BeginChangeCheck();

            EditorGUILayout.PropertyField(_customSettings.FindProperty("hairShadowSetting"), Styles.hairShadow);
            EditorGUILayout.PropertyField(_customSettings.FindProperty("hairBlendingSetting"), Styles.hairBlending);
            EditorGUILayout.PropertyField(_customSettings.FindProperty("outlineSetting"), Styles.outline);
            _customSettings.ApplyModifiedPropertiesWithoutUndo();

            if (EditorGUI.EndChangeCheck())
            {
                UTSRenderPassRegistrar.NotifyRendererSettingChanged();
            }

        }

        public static bool IsSettingsAvailable()
        {
            return EditorBuildSettings.TryGetConfigObject<UTSRenderPassSettings>(UTSRenderPassSettings.UTS_RENDERING_SETTINGS_NAME, out _);
        }

        [SettingsProvider]
        public static SettingsProvider Create()
        {
            if (IsSettingsAvailable())
            {
                var provider = new UTSRendererSettingProvider("Project/UTS", SettingsScope.Project)
                {
                    keywords = GetSearchKeywordsFromGUIContentProperties<Styles>()
                };

                return provider;
            }

            return null;
        }
    }
}