/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 * All rights reserved.
 *
 * Licensed under the Oculus SDK License Agreement (the "License");
 * you may not use the Oculus SDK except in compliance with the License,
 * which is provided at the time of installation or download, or which
 * otherwise accompanies this software in either electronic or hard copy form.
 *
 * You may obtain a copy of the License at
 *
 * https://developer.oculus.com/licenses/oculussdk/
 *
 * Unless required by applicable law or agreed to in writing, the Oculus SDK
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.IO;
using System;
using UnityEngine.Serialization;

[System.Serializable]
#if UNITY_EDITOR
[UnityEditor.InitializeOnLoad]
#endif
public class OVRProjectConfig : ScriptableObject
{
	public enum DeviceType
	{
		//GearVrOrGo = 0, // DEPRECATED
		Quest = 1,
		Quest2 = 2
	}

	public enum HandTrackingSupport
	{
		ControllersOnly = 0,
		ControllersAndHands = 1,
		HandsOnly = 2
	}

	public enum HandTrackingFrequency
	{
		LOW = 0,
		HIGH = 1,
		MAX = 2
	}

	public enum HandTrackingVersion
	{
		Default = 0,
		V1 = 1,
		V2 = 2
	}

	public enum AnchorSupport
	{
		Disabled = 0,
		Enabled = 1,
	}

	public enum RenderModelSupport
	{
		Disabled = 0,
		Enabled = 1,
	}

	public enum TrackedKeyboardSupport
	{
		None = 0,
		Supported = 1,
		Required = 2
	}


	public List<DeviceType> targetDeviceTypes = new List<DeviceType> {DeviceType.Quest, DeviceType.Quest2};
	public bool allowOptional3DofHeadTracking = false;
	public HandTrackingSupport handTrackingSupport = HandTrackingSupport.ControllersOnly;
	public HandTrackingFrequency handTrackingFrequency = HandTrackingFrequency.LOW;
	public HandTrackingVersion handTrackingVersion = HandTrackingVersion.Default;
	[FormerlySerializedAs("spatialAnchorsSupport")]
	public AnchorSupport anchorSupport = AnchorSupport.Disabled;
	public RenderModelSupport renderModelSupport = RenderModelSupport.Disabled;
	public TrackedKeyboardSupport trackedKeyboardSupport = TrackedKeyboardSupport.None;

	public bool disableBackups = true;
	public bool enableNSCConfig = true;
	public string securityXmlPath;

	public bool skipUnneededShaders = false;

	[System.Obsolete("Focus awareness is now required. The option will be deprecated.", false)]
	public bool focusAware = true;

	public bool requiresSystemKeyboard = false;
	public bool experimentalFeaturesEnabled = false;
	public bool insightPassthroughEnabled = false;
	public Texture2D systemSplashScreen;

	//public const string OculusProjectConfigAssetPath = "Assets/Oculus/OculusProjectConfig.asset";

	static OVRProjectConfig()
	{
		// BuildPipeline.isBuildingPlayer cannot be called in a static constructor
		// Run Update once to call GetProjectConfig then remove delegate
		EditorApplication.update += Update;
	}

	static void Update()
	{
		// Initialize the asset if it doesn't exist
		GetProjectConfig();
		// Stop running Update
		EditorApplication.update -= Update;
	}

	private static string GetOculusProjectConfigAssetPath()
	{
		var so = ScriptableObject.CreateInstance(typeof(OVRPluginUpdaterStub));
		var script = MonoScript.FromScriptableObject(so);
		string assetPath = AssetDatabase.GetAssetPath(script);
		string editorDir = Directory.GetParent(assetPath).FullName;
		string ovrDir = Directory.GetParent(editorDir).FullName;
		string oculusDir = Directory.GetParent(ovrDir).FullName;

		if (OVRPluginUpdaterStub.IsInsidePackageDistribution())
		{
			oculusDir = Path.GetFullPath(Path.Combine(Application.dataPath, "Oculus"));
			if (!Directory.Exists(oculusDir))
			{
				Directory.CreateDirectory(oculusDir);
			}
		}

		string configAssetPath = Path.GetFullPath(Path.Combine(oculusDir, "OculusProjectConfig.asset"));
		Uri configUri = new Uri(configAssetPath);
		Uri projectUri = new Uri(Application.dataPath);
		Uri relativeUri = projectUri.MakeRelativeUri(configUri);

		return relativeUri.ToString();
	}

	public static OVRProjectConfig GetProjectConfig()
	{
		OVRProjectConfig projectConfig = null;
		string oculusProjectConfigAssetPath = GetOculusProjectConfigAssetPath();
		try
		{
			projectConfig = AssetDatabase.LoadAssetAtPath(oculusProjectConfigAssetPath, typeof(OVRProjectConfig)) as OVRProjectConfig;
		}
		catch (System.Exception e)
		{
			Debug.LogWarningFormat("Unable to load ProjectConfig from {0}, error {1}", oculusProjectConfigAssetPath, e.Message);
		}
		// Initialize the asset only if a build is not currently running.
		if (projectConfig == null && !BuildPipeline.isBuildingPlayer)
		{
			projectConfig = ScriptableObject.CreateInstance<OVRProjectConfig>();
			projectConfig.targetDeviceTypes = new List<DeviceType>();
			projectConfig.targetDeviceTypes.Add(DeviceType.Quest);
			projectConfig.targetDeviceTypes.Add(DeviceType.Quest2);
			projectConfig.allowOptional3DofHeadTracking = false;
			projectConfig.handTrackingSupport = HandTrackingSupport.ControllersOnly;
			projectConfig.handTrackingFrequency = HandTrackingFrequency.LOW;
			projectConfig.handTrackingVersion = HandTrackingVersion.Default;
			projectConfig.anchorSupport = AnchorSupport.Disabled;
			projectConfig.trackedKeyboardSupport = TrackedKeyboardSupport.None;
			projectConfig.renderModelSupport = RenderModelSupport.Disabled;
			projectConfig.disableBackups = true;
			projectConfig.enableNSCConfig = true;
			projectConfig.skipUnneededShaders = false;
			projectConfig.requiresSystemKeyboard = false;
			projectConfig.experimentalFeaturesEnabled = false;
			projectConfig.insightPassthroughEnabled = false;
			AssetDatabase.CreateAsset(projectConfig, oculusProjectConfigAssetPath);
		}
		// Force migration to Quest device if still on legacy GearVR/Go device type
		if (projectConfig.targetDeviceTypes.Contains((DeviceType)0)) // deprecated GearVR/Go device
		{
			projectConfig.targetDeviceTypes.Remove((DeviceType)0); // deprecated GearVR/Go device
			if (!projectConfig.targetDeviceTypes.Contains(DeviceType.Quest))
			{
				projectConfig.targetDeviceTypes.Add(DeviceType.Quest);
			}
			if (!projectConfig.targetDeviceTypes.Contains(DeviceType.Quest2))
			{
				projectConfig.targetDeviceTypes.Add(DeviceType.Quest2);
			}
		}
		return projectConfig;
	}

	public static void CommitProjectConfig(OVRProjectConfig projectConfig)
	{
		string oculusProjectConfigAssetPath = GetOculusProjectConfigAssetPath();
		if (AssetDatabase.GetAssetPath(projectConfig) != oculusProjectConfigAssetPath)
		{
			Debug.LogWarningFormat("The asset path of ProjectConfig is wrong. Expect {0}, get {1}", oculusProjectConfigAssetPath, AssetDatabase.GetAssetPath(projectConfig));
		}
		EditorUtility.SetDirty(projectConfig);
	}
}