using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Xml.Linq;
using UnityEditor;
using UnityEditor.Build.Reporting;
using UnityEditor.SceneManagement;
using UnityEngine.SceneManagement;
using UnityEngine;
using game;

#if RND_FACEBOOK
using Facebook.Unity.Settings;
#endif
#if UNITY_IOS
using UnityEditor.iOS.Xcode;
using UnityEngine.iOS;
#endif
#if PURCHASING_IS_CONNECT
using UnityEngine.Purchasing;
using UnityEditor.Purchasing;
#endif

[InitializeOnLoad]
public static class BuildUtils
{
    private static readonly string[] _primaryLevels = { "Assets/Scenes/loader.unity", "Assets/Scenes/game.unity" };
    private const string BUILD_LOCATION_PATH = "LOCATION_PATH";

    [MenuItem("Game/SetUpBuiltInLevels (Editor)", false, 20)]
    private static void SetUpBuiltInLevels()
    {
        string[] levels = GetBuiltInLevels();
        var scenes = new List<EditorBuildSettingsScene>(levels.Length);

        foreach (string lvl in levels)
            scenes.Add(new EditorBuildSettingsScene(lvl, true));

        EditorBuildSettings.scenes = scenes.ToArray();
    }

    private static string[] GetBuiltInLevels()
    {
        const string dir = "Assets/Scenes/Levels";

        if (Directory.Exists(dir) == false)
        {
            Log.Warn($"Levels directory not found from path {dir}");
            return _primaryLevels;
        }

        string[] files = Directory.GetFiles(dir).Where(file => file.EndsWith(".unity")).ToArray();
        Log.Info($"Founded game levels count: {files?.Length}");
        files.ForEach(lvl => Log.Info($"Level add to built in {lvl}"));

        var levels = new List<string>(_primaryLevels);
        levels.AddRange(files);
        return levels.ToArray();
    }

    [MenuItem("Game/BuildAndPlay (Editor)", false, 20)]
    public static void BuildAndPlay()
    {
        if (Build())
            PlayGameScene();
    }

    private static void Recompile()
    {
        var editorAssembly = Assembly.GetAssembly(typeof(Editor));
        Type editorCompilationInterfaceType =
            editorAssembly.GetType("UnityEditor.Scripting.ScriptCompilation.EditorCompilationInterface");
        MethodInfo dirtyAllScriptsMethod =
            editorCompilationInterfaceType.GetMethod("DirtyAllScripts", BindingFlags.Static | BindingFlags.Public);
        dirtyAllScriptsMethod.Invoke(editorCompilationInterfaceType, null);
    }

    public static void BuildAndPlayRecompile()
    {
        Recompile();
        BuildAndPlay();
    }

    public static void RecompileAndPlay()
    {
        Recompile();
        PlayGameScene();
    }

    private static void PlayGameScene()
    {
        OpenGameScene();
        EditorApplication.isPlaying = true;
    }

    private static void OpenGameScene()
    {
        Scene scene = SceneManager.GetActiveScene();

        if (scene.name != "game")
            EditorSceneManager.OpenScene("Assets/Scenes/game.unity");
    }

    private static BuildOptions GetBuildOptions()
    {
        //var arr = Settings.BUILD_CLIENT_OPTS.Split(',');
        const BuildOptions opts = new BuildOptions();

        //foreach(var name in arr)
        //  opts |= name.ParseEnum<BuildOptions>();

        return opts;
    }

    [MenuItem("Game/SetupCommonPlayerSettings (Editor)", false, 20)]
    private static void SetupCommonPlayerSettings()
    {
        PlayerSettings.SetApplicationIdentifier(BuildTargetGroup.Android ,Settings.PACKAGE_ID_FULL);
        PlayerSettings.SetApplicationIdentifier(BuildTargetGroup.iOS ,Settings.PACKAGE_ID_FULL);

        PlayerSettings.bundleVersion = Settings.VERSION;
        PlayerSettings.productName = Settings.CLIENT_APP_NAME;
        PlayerSettings.companyName = Settings.GAME_COMPANY_NAME;
        PlayerSettings.stripUnusedMeshComponents = true;

#if RND_FACEBOOK
        FacebookSettings.AppLabels = new List<string>(){Settings.CLIENT_APP_NAME};
        FacebookSettings.AppIds = new List<string>(){Settings.FACEBOOK_APP_ID};
        FacebookSettings.AndroidKeystorePath = "user-key-store.keystore";
#endif

#if PURCHASING_IS_CONNECT
        PurchasingSettings.enabled = Settings.UNITY_CONNECT_PURCHASING;
#endif
        UpdateIconsForBuildTarget(BuildTargetGroup.Android, Settings.CLIENT_APP_ICON);
        UpdateIconsForBuildTarget(BuildTargetGroup.iOS, Settings.CLIENT_APP_ICON);
    }

    static void UpdateIconsForBuildTarget(BuildTargetGroup target, string icon)
    {
        Log.Info($"UpdateIconsForBuildTarget: {target} - {icon}");

        int[] iconSizes = PlayerSettings.GetIconSizesForTargetGroup(target);
        var icons = new Texture2D[iconSizes.Length];

        for (var i = 0; i < iconSizes.Length; i++)
            icons[i] = AssetDatabase.LoadAssetAtPath<Texture2D>(icon);

        PlayerSettings.SetIconsForTargetGroup(target, icons);
    }

    private static void EnableIL2CPP(BuildTargetGroup targetGroup, bool flag)
    {
        ScriptingImplementation backend = flag ? ScriptingImplementation.IL2CPP : ScriptingImplementation.Mono2x;
        PlayerSettings.SetScriptingBackend(targetGroup, backend);
    }

    //[MenuItem("Game/Build/Android APK + Run %R", false, 21)]
    public static void BuildAPKAndRun()
    {
        BuildAPK(opts => opts.Add(BuildOptions.AutoRunPlayer));
    }

    [MenuItem("Game/Build/Android APK %D", false, 22)]
    public static void BuildAPKOnly()
    {
        BuildAPK(opts => opts.Remove(BuildOptions.AutoRunPlayer));
    }

    private static void BuildAPK(BuildOptionsTweak tweak)
    {
        BuildAPK(PrepareBuild(tweak));
    }

    public static void ExportAndroidProject()
    {
        ExportAndroidProject(opts => opts.Remove(BuildOptions.AutoRunPlayer));
    }

    private static void ExportAndroidProject(BuildOptionsTweak tweak)
    {
        ExportAndroidProject(PrepareBuild(tweak));
    }

    [MenuItem("Game/Build/iOS Project (Clean)", false, 24)]
    public static void BuildXCodeProjectClean()
    {
        BuildXCode(opts => opts
            .Remove(BuildOptions.AutoRunPlayer)
            .Remove(BuildOptions.AcceptExternalModificationsToPlayer)
        );
    }

    private static void BuildXCode(BuildOptionsTweak tweak)
    {
        BuildXCode(PrepareBuild(tweak));
    }

    private static void BuildXCode(BuildOptions buildOpts)
    {
        PlayerSettings.iOS.allowHTTPDownload = true;
        PlayerSettings.iOS.targetOSVersionString = "10.0";
        PlayerSettings.iOS.sdkVersion = iOSSdkVersion.DeviceSDK; //TODO: simulator build support?

#if UNITY_IOS
        PlayerSettings.iOS.deferSystemGesturesMode = SystemGestureDeferMode.TopEdge | SystemGestureDeferMode.BottomEdge;
#endif
        PlayerSettings.iOS.appleEnableAutomaticSigning = true;

        const BuildTarget target = BuildTarget.iOS;
        PlayerSettings.SetUseDefaultGraphicsAPIs(target, automatic: true);

        PlayerSettings.iOS.appleDeveloperTeamID = Settings.IOS_TEAM_ID;
        PlayerSettings.iOS.buildNumber = $"{PlayerSettings.bundleVersion}.{Settings.VERSION_REV_NUMBER}";

#if UNITY_IOS
        //IOSCredentialsPostProcess.ReplaceFirebasePlistAccordingToBundleID(); //TODO: Delete?
#endif

        EnableIL2CPP(BuildTargetGroup.iOS, true);
        string locationPath = Environment.GetEnvironmentVariable(BUILD_LOCATION_PATH); //TODO: To method?

        if (string.IsNullOrEmpty(locationPath))
            throw new InvalidDataException($"Environment variable {BUILD_LOCATION_PATH} is NULL"); //TODO: With this

        BuildPipeline.BuildPlayer(GetBuiltInLevels(), locationPath, target, buildOpts);
    }

    private static BuildReport BuildStandalone(BuildOptionsTweak tweak)
    {
        return BuildStandalone(PrepareBuild(tweak));
    }

    private static void ExportAndroidProject(BuildOptions buildOpts)
    {
        var ver = (int)Settings.VERSION_CODE;
        AndroidArchitecture arch = ParseArch();
        int bundleCode = MakeAndroidBundleVersionCode();

        Log.Info($"==== GAME VERSION CODE: {ver}, BUNDLE VERSION CODE: {bundleCode} ({arch}) ====");
        SetupAndroidBuildSettings(bundleCode, arch);
        EnableIL2CPP(BuildTargetGroup.Android, Settings.ANDROID_USE_IL2CPP);

        string locationPath = Environment.GetEnvironmentVariable(BUILD_LOCATION_PATH);

        if (string.IsNullOrEmpty(locationPath))
            throw new InvalidDataException($"Environment variable {BUILD_LOCATION_PATH} is NULL");

        BuildPipeline.BuildPlayer(GetBuiltInLevels(), string.Concat(locationPath, ".proj"), BuildTarget.Android, buildOpts);
        AndroidRepackNativeDebugSymbols();
    }

    private static void BuildAPK(BuildOptions buildOpts)
    {
        var ver = (int)Settings.VERSION_CODE;
        AndroidArchitecture arch = ParseArch();
        int bundleCode = MakeAndroidBundleVersionCode();

        Log.Info($"==== GAME VERSION CODE: {ver}, BUNDLE VERSION CODE: {bundleCode} ({arch}) ====");
        SetupAndroidBuildSettings(bundleCode, arch);
        EnableIL2CPP(BuildTargetGroup.Android, Settings.ANDROID_USE_IL2CPP);

        string locationPath = Environment.GetEnvironmentVariable(BUILD_LOCATION_PATH);

        if (string.IsNullOrEmpty(locationPath))
            throw new InvalidDataException($"Environment variable {BUILD_LOCATION_PATH} is NULL");

        if ((buildOpts & BuildOptions.AcceptExternalModificationsToPlayer) != 0)
            locationPath += ".proj";

        //EditorUserBuildSettings.androidCreateSymbolsZip = false; //TODO: ???
        BuildPipeline.BuildPlayer(GetBuiltInLevels(), locationPath, BuildTarget.Android, buildOpts);
        AndroidRepackNativeDebugSymbols();
    }

    [MenuItem("Game/SetupAndroidResolverDependencies (Editor)", false, 20)]
    private static void SetupAndroidResolverDependencies()
    {
        const string ardPath = "ProjectSettings/AndroidResolverDependencies.xml";

        if (File.Exists(ardPath))
        {
            Log.Info($"Android Resolver Dependencies loading existing file {ardPath}");
            XDocument ardDoc = XDocument.Load(ardPath);

            Log.Info("ARD_doc " +
                     ardDoc
                         .Element("dependencies")
                         .Element("settings")
                         .Elements("setting")
                         .Single(e => e.Attribute("name").Value == "bundleId").Attribute("value").Value
            );

            XElement bundleId = ardDoc
                .Element("dependencies")
                .Element("settings")
                .Elements("setting")
                .Single(e => e.Attribute("name").Value == "bundleId");

            Log.Info($"bundleId {bundleId.Attribute("value").Value}");
            bundleId.Attribute("value").Value = Settings.PACKAGE_ID;
            ardDoc.Save(ardPath);
        }
        else
        {
            Log.Info($"Android Resolver Dependencies not found {ardPath} file");
        }
    }

    private static void SetupAndroidBuildSettings(int bundleCode, AndroidArchitecture arch)
    {
        PlayerSettings.Android.bundleVersionCode = bundleCode;
        PlayerSettings.Android.targetArchitectures = arch;
        PlayerSettings.Android.keyaliasName = "android-build";
        PlayerSettings.Android.keyaliasPass = "WV7fx6pRykCk";
        PlayerSettings.Android.keystorePass = "WV7fx6pRykCk";

        PlayerSettings.Android.minSdkVersion = AndroidSdkVersions.AndroidApiLevel23;
        PlayerSettings.Android.targetSdkVersion = AndroidSdkVersions.AndroidApiLevelAuto;

        EditorUserBuildSettings.androidBuildSystem = AndroidBuildSystem.Gradle;
        EditorUserBuildSettings.exportAsGoogleAndroidProject = false;
        EditorUserBuildSettings.buildAppBundle = true;

        SetupAndroidResolverDependencies();

        //TODO: ?
        //EditorUserBuildSettings.androidReleaseMinification = AndroidMinification.Gradle;
        //EditorUserBuildSettings.androidDebugMinification = AndroidMinification.Gradle;

        //EditorUserBuildSettings.androidCreateSymbolsZip = Settings.ANDROID_NATIVE_DEBUG_SYMBOLS_ZIP &&
        //                                                  Settings.ANDROID_USE_IL2CPP;

        AndroidSelectTargetStore();
    }

    private static void AndroidSelectTargetStore()
    {
#if PURCHASING_IS_CONNECT
        switch(Settings.ANDROID_TARGET_STORE)
        {
          case EnumAndroidStore.AMAZON:
            UnityPurchasingEditor.TargetAndroidStore(AppStore.AmazonAppStore);
            break;
          case EnumAndroidStore.GPLAY:
            UnityPurchasingEditor.TargetAndroidStore(AppStore.GooglePlay);
            break;
          default:
            throw new ArgumentNullException($"Unknown Android store flavor: {Settings.ANDROID_TARGET_STORE}");
        }
#endif
    }

    private static string AndroidFlavorFilenameSuffix()
    {
        switch(Settings.ANDROID_TARGET_STORE)
        {
          case EnumAndroidStore.GPLAY:
            return "google_play";
          default:
            throw new ArgumentNullException($"Unknown Android store flavor: {Settings.ANDROID_TARGET_STORE}");
        }
    }

    private static void AndroidRepackNativeDebugSymbols()
    {
        if (!EditorUserBuildSettings.androidCreateSymbolsZip)
            return;

        string ndkPath = EditorPrefs.GetString("AndroidNdkRootR16b", "");

        if (string.IsNullOrEmpty(ndkPath))
        {
            Log.Error("Android NDK path not specified in Unity Editor Preferences - can't repack Android debug symbols");
            return;
        }

        var prefix = $"{Settings.GAME_PROJECT_NAME}_{AndroidFlavorFilenameSuffix()}";

        //E.g.: game_google_play-24.0.0-v3917800.symbols.zip
        var zipName =
            $"{prefix}-{PlayerSettings.bundleVersion}-v{PlayerSettings.Android.bundleVersionCode}.symbols.zip";
        var outName = $"{prefix}.symbols.zip";

        //EditorDevUtils.ProcessGamectlTask($"android_native_debug_symbols_repack {ndk_path} {zip_name} {out_name}"); //TODO: mem
    }

    private static BuildReport BuildStandalone(BuildOptions buildOpts)
    {
        PlayerSettings.fullScreenMode = FullScreenMode.Windowed;
        var binName = $"{Settings.GAME_PROJECT_NAME}";
        return BuildPipeline.BuildPlayer(GetBuiltInLevels(), binName, BuildTarget.StandaloneOSX, buildOpts);
    }

    private static AndroidArchitecture ParseArch()
    {
        var architecture = AndroidArchitecture.None;

        //TODO: mem
        //string[] arch_strs = Settings.ANDROID_TARGET_ARCHITECTURES.Trim().Split(',');
        //for(int i = 0; i < arch_strs.Length; i++)
        //  architecture |= arch_strs[i].ParseEnum<AndroidArchitecture>();

        architecture |= AndroidArchitecture.ARM64;
        architecture |= AndroidArchitecture.ARMv7;

        return architecture;
    }

    private static int MakeAndroidBundleVersionCode()
    {
        return (int)(Settings.VERSION_REV_NUMBER * 100); //Last two digits reserved for possible suffixes
    }

    private static bool Build()
    {
        if (ShouldAskToSaveScene() && !EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo())
            return false;

        Log.Info("=== Building Game ===");
        return Urun();
    }

    public static bool Urun()
    {
        return EditorDevUtils.ProcessGamectlTask("urun");
    }

    private static bool ShouldAskToSaveScene()
    {
        return !Application.isPlaying &&
               SceneManager.GetActiveScene().name.IndexOf("game.unity", StringComparison.Ordinal) == -1;
    }

    private static BuildOptions Add(this BuildOptions opts, BuildOptions newOpt)
    {
        return opts |= newOpt;
    }

    private static BuildOptions Remove(this BuildOptions opts, BuildOptions uselessOpt)
    {
        return opts &= ~uselessOpt;
    }

    private static BuildOptions PrepareBuild(BuildOptionsTweak tweak)
    {
        Build();
        SetupCommonPlayerSettings();
        return tweak(GetBuildOptions());
    }

    private delegate BuildOptions BuildOptionsTweak(BuildOptions rawOpts);
}