using System;
using System.ComponentModel.Composition.Primitives;
using System.Linq;
using System.Threading.Tasks;
using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;
using Object = UnityEngine.Object;

namespace Needle.Engine.Deployment
{
	public class BuildWindowDeployOptions : INeedleBuildPlatformGUIProvider
	{
		private GUIStyle fixedMiniLabel;
		
		public void OnBuildPlatformsGUI(NeedleEngineBuildOptions options)
		{
			if (fixedMiniLabel == null)
			{
				fixedMiniLabel = new GUIStyle(EditorStyles.wordWrappedMiniLabel);
				fixedMiniLabel.padding.left = 0;
			}
			
			if (NeedleDebug.DeveloperMode)
			{
				EditorGUILayout.HelpBox("DEVELOPER MODE IS ENABLED", MessageType.Warning);
				GUILayout.Space(5);
			}

			var hasLicense = LicenseCheck.HasCommercialLicense;
			var hasValidLicense = LicenseCheck.LicenseIsActive;
			var width = EditorGUIUtility.labelWidth;
			EditorGUIUtility.labelWidth -= 30;

			using (new EditorGUILayout.HorizontalScope())
			{
				var tooltip = NeedleEngineBuildOptions.DevelopmentBuild
					? "Development build enabled - this means your project will produce bigger files because textures and meshes will not be compressed. Press this button to enable Production builds and compress your glTF files after building."
					: "Production build enabled - when building your resulting glTF files will get compressed using toktx (this means mainly meshes and textures will get way smaller)";
				NeedleEngineBuildOptions.DevelopmentBuild = EditorGUILayout.Toggle(new GUIContent("Development Build", tooltip), NeedleEngineBuildOptions.DevelopmentBuild);
				if (NeedleEngineBuildOptions.DevelopmentBuild)
				{
					using(new EditorGUI.DisabledScope(true))
						GUILayout.Label(new GUIContent("No mesh/texture compression", "For production we recommend to disable the development build option. Development builds produce uncompressed output resulting in larger assets, higher runtime memory requirements, and reduced performance."), EditorStyles.wordWrappedLabel);
				}
			}
			using (new EditorGUILayout.HorizontalScope())
			{
				var tooltip = "When enabled, HTML, CSS and JS files will be gzip-compressed during the build process, reducing their size. This is recommended for production builds. Make sure your server is set up to serve gzipped files.";
				using (new EditorGUI.DisabledScope(!hasValidLicense))
				{
					if (!hasValidLicense) NeedleEngineBuildOptions.UseGzipCompression = true;
					NeedleEngineBuildOptions.UseGzipCompression = EditorGUILayout.Toggle(new GUIContent("Gzip Compression", tooltip), NeedleEngineBuildOptions.UseGzipCompression);
				}
			}
			
			EditorGUILayout.Space(10);
			
			using (new EditorGUILayout.VerticalScope())
			{
				// var main = EditorStyles.wordWrappedLabel;
				// GUILayout.Label(
				// 	new GUIContent("Deployment",
				// 		"Click any of the buttons below to add the deployment component to your scene or (if it already exists) ping the object"),
				// 	EditorStyles.boldLabel);
				// GUILayout.Space(6);

				// if (!Authentication.IsLoggedIn())
				// {
				// 	using (new EditorGUILayout.HorizontalScope())
				// 	{
				// 		EditorGUILayout.HelpBox("Get a Needle Engine license to deploy with ease to any platform", MessageType.Info);
				// 		if (GUILayout.Button(new GUIContent("Login to Needle Cloud", "See the available commercial plans - deploy with ease with Needle Engine"), GUILayout.Width(150), GUILayout.Height(38)))
				// 		{
				// 			Authentication.Login();
				// 		}
				// 	}
				// 	GUILayout.Space(5);
				// }
				
				EditorGUILayout.LabelField("Deploy to Needle Cloud", EditorStyles.boldLabel);
				GUILayout.Space(-5);
				EditorGUILayout.LabelField("Fast deployments, versioning, and collaboration.", fixedMiniLabel);
				
				var exp = ExportInfo.Get();
				if (exp)
				{
					NeedleCloudGUI.Instance.OnGUI();
				}
                GUILayout.Space(5);
                GUILayout.FlexibleSpace();
                
                EditorGUILayout.LabelField("Other Platforms", EditorStyles.boldLabel, GUILayout.MaxWidth(150), GUILayout.MaxHeight(10));
                if (!hasLicense)
                {
	                using(new EditorGUI.DisabledScope(true))
		                EditorGUILayout.LabelField("Deploy to Needle Cloud for free or get PRO to deploy anywhere: Fast deployment to other platforms", fixedMiniLabel);
                }
                else
                {             
	                EditorGUILayout.LabelField("Fast deployment to various hosting platforms.", fixedMiniLabel);
                }
                
                using (new EditorGUI.DisabledScope(!hasValidLicense || !hasLicense))
                {
	                DrawDeployToOptionButtons();
                }

				// if (hasValidLicense)
				// {
				// 	GUILayout.Space(5);
				// 	using (new EditorGUILayout.HorizontalScope())
				// 	{
				// 		EditorGUILayout.LabelField(
				// 			new GUIContent(
				// 				"Learn more about all our deployment options by visiting the Needle Engine documentation."),
				// 			main);
				// 		if (GUILayout.Button("Open Documentation ↗"))
				// 			Help.BrowseURL(Constants.DocumentationUrlDeployment);
				// 	}
				// }
			}
			EditorGUIUtility.labelWidth = width;
		}

		private class DeploymentComponentEntry
		{
			public Type type;
			public Texture2D icon;
			public string label;
			public string niceName;
			public GUIContent content;
		}
		
		private static DeploymentComponentEntry[] deploymentComponents;
		private static GUIStyle buttonLeftAligned;

		private static void DrawDeployToOptionButtons()
		{
			deploymentComponents ??= TypeCache
				.GetTypesWithAttribute<DeploymentComponentAttribute>()
				.Where(t => typeof(MonoBehaviour).IsAssignableFrom(t))
				.OrderBy(t => t.Name)
				.Select(x =>
				{
					var labelText = ObjectNames.NicifyVariableName(x.Name);
					if (labelText.StartsWith("Deploy To")) 
						labelText = labelText.Substring("Deploy To".Length);

					var entry = new DeploymentComponentEntry
					{
						type = x,
						niceName = labelText,
					};
					if (x
					    .GetCustomAttributes(typeof(CustomComponentHeaderLinkAttribute), true)
					    .FirstOrDefault() is CustomComponentHeaderLinkAttribute comp &&
					    !string.IsNullOrEmpty(comp.IconIconPathOrGuid))
					{
						entry.icon = AssetDatabase.LoadAssetAtPath<Texture2D>(
							AssetDatabase.GUIDToAssetPath(comp.IconIconPathOrGuid));;
					}

					if (x
						.GetCustomAttributes(typeof(AddComponentMenu), true)
						.FirstOrDefault() is AddComponentMenu menu &&
					    !string.IsNullOrEmpty(menu.componentMenu))
					{
						entry.label = menu.componentMenu;
					}
					
					entry.content = new GUIContent(entry.niceName, entry.icon,"Click to add the '" + entry.label + "' component to your scene");
					
					return entry;
				})
				.ToArray();
			
			buttonLeftAligned ??= new GUIStyle(GUI.skin.button)
			{
				alignment = TextAnchor.MiddleLeft,
				padding = new RectOffset(5,5,5,5),
			};
			EditorGUILayout.BeginHorizontal();
			var i = 0;
			const int leftColumnWidth = 295;
			var maxWidthPerButton = (Screen.width / EditorGUIUtility.pixelsPerPoint - leftColumnWidth) / 2.0f;
			maxWidthPerButton -= 7; // to avoid horizontal scrollbar IF we have a vertical scrollbar (seems to be windows only)
			var width = GUILayout.Width(maxWidthPerButton);
			var height = GUILayout.Height(24);
			for (var index = 0; index < deploymentComponents.Length; index++)
			{
				var entry = deploymentComponents[index];

				if (i++ >= 2)
				{
					i = 1;
					EditorGUILayout.EndHorizontal();
					EditorGUILayout.BeginHorizontal();
				}
				if (GUILayout.Button(entry.content, buttonLeftAligned, width, height))
				{
					var existing = Object.FindAnyObjectByType(entry.type);
					if (existing)
					{
						EditorGUIUtility.PingObject(existing);
						Selection.activeObject = existing;
					}
					else
					{
						var exp = ExportInfo.Get();
						if (exp)
						{
							var gameObject = exp.gameObject;
							EditorGUIUtility.PingObject(exp);
							Selection.activeObject = gameObject;
							AddDelayed();

							async void AddDelayed()
							{
								await Task.Delay(300);
								Debug.Log("Added the \"" + entry.niceName + "\" component to " + gameObject, gameObject);
								Undo.AddComponent(exp.gameObject, entry.type);
							}
						}
					}
				}
			}
			EditorGUILayout.EndHorizontal();
		}
	}
}