/****************************************************************************
 *
 * Copyright (c) 2017 CRI Middleware Co., Ltd.
 *
 ****************************************************************************/

#if UNITY_EDITOR && UNITY_5_6_OR_NEWER

using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEditor;
using UnityEditor.Build;
using System.Runtime.CompilerServices;
using UnityEngine.Assertions;

[assembly: InternalsVisibleTo("EditorTests")]
namespace CriWare {

public class CriWareBuildPreprocessor : ScriptableObject {
	public bool muteOtherAudio = true;

	public static CriWareBuildPreprocessor LoadExistingAsset() {
		string preProcessorPath = "";
		string[] searchResult = AssetDatabase.FindAssets("t:CriWareBuildPreprocessor");
		if (searchResult.Length == 0) {
			return null;
		}
		preProcessorPath = AssetDatabase.GUIDToAssetPath(searchResult[0]);
		var instance = (CriWareBuildPreprocessor)AssetDatabase.LoadAssetAtPath(preProcessorPath, typeof(CriWareBuildPreprocessor));
		return instance;
	}
}

public class CriWareBuildPreprocessExcecutor :
#if UNITY_2018_1_OR_NEWER
	IPreprocessBuildWithReport
#else
	IPreprocessBuild
#endif
{
	private static string prefsFilePath;

	public int callbackOrder { get { return 0; } }

	[MenuItem("GameObject/CRIWARE/Create CriWareBuildPreprocessorPrefs.asset")]
	public static void Create()
	{
		CriWareBuildPreprocessor instance = CriWareBuildPreprocessor.LoadExistingAsset();
		if (instance) {
			Debug.LogError("[CRIWARE] Preferences file of CriWareBuildPreprocessor already exists.");
			Selection.activeObject = instance;
			return;
		}

		var scobj = ScriptableObject.CreateInstance<CriWareBuildPreprocessor>();
		if (scobj == null) {
			Debug.Log("[CRIWARE] Failed to create CriWareBuildPreprocessor asset");
			return;
		}

		var script = MonoScript.FromScriptableObject(scobj);
		prefsFilePath = Path.Combine(Path.GetDirectoryName(AssetDatabase.GetAssetPath(script)), "CriWareBuildPreprocessorPrefs.asset");

		AssetDatabase.CreateAsset(scobj, prefsFilePath);

		AssetDatabase.SaveAssets();
		AssetDatabase.Refresh();

		Debug.Log("[CRIWARE] Created the preferences file of CriWareBuildPreprocessor. (" + prefsFilePath + ")");

		Selection.activeObject = scobj;
	}

#if UNITY_2018_1_OR_NEWER
	public void OnPreprocessBuild(UnityEditor.Build.Reporting.BuildReport report)
	{
		OnPreprocessBuild(report.summary.platform, report.summary.outputPath);
	}
#endif

	public void OnPreprocessBuild(BuildTarget build_target, string path)
	{
		CriWareBuildPreprocessor instance = CriWareBuildPreprocessor.LoadExistingAsset();
		if (instance == null) {
			instance = ScriptableObject.CreateInstance<CriWareBuildPreprocessor>();
			Debug.Log(
				"[CRIWARE] Run CriWareBuildPreprocessor.OnPreprocessBuild with default preferences.\n"
				+ "If you want to change the preferences, please create the preferences file by 'GameObject/CRIWARE/Create CriWareBuildPreprocessorPrefs.asset' menu."
			);
		} else {
			Debug.Log(
				"[CRIWARE] CriWareBuildPreprocessor preferences file has been loaded.\n"
				+ "If you want to change the preferences, please edit the preferences file (" + prefsFilePath + ")"
			);
		}

		if (instance.muteOtherAudio == true) {
			ModifyAudioManager(build_target, path);
		}
/* @cond excludele */
#if UNITY_WEBGL
		CheckEmscriptenVersion();
#endif
/* @endcond */
	}

	private static void ModifyAudioManager(BuildTarget build_target, string path)
	{
		string audioManagerPath = "ProjectSettings/AudioManager.asset";
		SerializedObject audioManager = new SerializedObject(AssetDatabase.LoadAllAssetsAtPath(audioManagerPath)[0]);
		SerializedProperty propertyDisableUnityAudio = audioManager.FindProperty("m_DisableAudio");

		if (build_target == BuildTarget.Android) {
			if (PlayerSettings.muteOtherAudioSources == true) {
				propertyDisableUnityAudio.boolValue = false;
			}
		} else {
			propertyDisableUnityAudio.boolValue = false;
		}

		audioManager.ApplyModifiedProperties();
	}

/* @cond excludele */
	private void CheckEmscriptenVersion() {
		var pluginInfoList = GetPluginInfoList();
		var webglPluginInfoList = ExtractWebGLPluginInfoList(pluginInfoList);
		MatchingWebglPlatformInfo(webglPluginInfoList);
	}

	internal static List<CriWareVersionWindow.PluginInfo> GetPluginInfoList() {
		CriWareVersionWindow _criWareVersionWindow = ScriptableObject.CreateInstance("CriWareVersionWindow") as CriWareVersionWindow;
		_criWareVersionWindow.Reload(CriWareVersionWindow.PluginType.CRIWARE, true);
		var pluginInfoList = _criWareVersionWindow.PluginInfos;
		return pluginInfoList;
	}

	internal static List<CriWareVersionWindow.PluginInfo> ExtractWebGLPluginInfoList(List<CriWareVersionWindow.PluginInfo> pluginInfoList) {
		const string webgl1PlatformSymbol = "WebGL";
		const string webgl2PlatformSymbol = "WebGL2";
		var webglPluginInfoList = new List<CriWareVersionWindow.PluginInfo>();

		foreach (var pluginInfo in pluginInfoList) {
			if (pluginInfo.platform.Equals(webgl1PlatformSymbol) || pluginInfo.platform.Equals(webgl2PlatformSymbol)) {
				webglPluginInfoList.Add(pluginInfo);
			}
		}
		return webglPluginInfoList;
	}

	internal static void MatchingWebglPlatformInfo(List<CriWareVersionWindow.PluginInfo> webglPluginInfoList) {
		string ExceptionMessage = null;

		if (webglPluginInfoList.Count == 0) {
			return;
		} else if (webglPluginInfoList.Count > 1) {
			ExceptionMessage = "[CRIWARE] Several competing CRIWARE WebGL libraries are included."
			                   + "Please refer to the manual and import the appropriate plug-in library.";
		} else {
			string requriedWebglPlatformSymbol;
#if UNITY_2021_2_OR_NEWER
			requriedWebglPlatformSymbol = "WebGL2";
			if (webglPluginInfoList[0].platform.Equals(requriedWebglPlatformSymbol)) {
				return;
			} else {
				ExceptionMessage = "[CRIWARE] CRIWARE Unity Plug-in built with Emscripten v1 only runs on Unity 2021.1 or earlier."
				                   + "Please refer to the manual and import the appropriate plug-in library.";
			}
# else	
			requriedWebglPlatformSymbol = "WebGL";
			if (webglPluginInfoList[0].platform.Equals(requriedWebglPlatformSymbol)) {
				return;
			} else {
				ExceptionMessage = "[CRIWARE] CRIWARE Unity Plug-in built with Emscripten v2 only runs on Unity 2021.2 or later."
				                   + "Please refer to the manual and import the appropriate plug-in library.";
			}
#endif
		}
		throw new BuildFailedException(ExceptionMessage);
	}
/* @endcond */

}


} //namespace CriWare

#endif

/* end of file */