// debugging prerequisity
#tool nuget:?package=Cake.CoreCLR
/*
     dotnet cake spell-check.cake
    dotnet cake spell-check.cake -t=spell-check
 */
#addin nuget:?package=WeCantSpell.Hunspell&version=5.0.0
#addin nuget:?package=Newtonsoft.Json&version=13.0.3
#addin nuget:?package=Cake.FileHelpers&version=7.0.0
#addin nuget:?package=Mono.Cecil&version=0.11.5

#addin nuget:?package=HolisticWare.Xamarin.Tools.ComponentGovernance&version=0.0.1.4
#addin nuget:?package=HolisticWare.Core.Net.HTTP&version=0.0.4
#addin nuget:?package=HolisticWare.Core.IO&version=0.0.4

using System.Collections.Generic;
using System.Collections.Concurrent;

using Mono.Cecil;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

using HolisticWare.Xamarin.Tools.ComponentGovernance;

var TARGET = Argument ("t", Argument ("target", "Default"));

string file_spell_errors = "./output/spell-errors.txt";
List<string> spell_errors = null;
JArray binderator_json_array = null;

List<(string, string, string, string)> mappings_artifact_nuget = new List<(string, string, string, string)>();
Dictionary<string, string> Licenses = new Dictionary<string, string>();

// modifying default method for licenses
Manifest.Defaults.VersionBasedOnFullyQualifiedArtifactIdDelegate = delegate(string fully_qualified_artifact_id)
{
    if
        (
            fully_qualified_artifact_id.StartsWith("androidx")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.android.material")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.firebase")
            ||
            fully_qualified_artifact_id.StartsWith("org.jetbrains.kotlin")
            ||
            fully_qualified_artifact_id.StartsWith("org.jetbrains.kotlinx")
            ||
            fully_qualified_artifact_id.StartsWith("org.jetbrains")
            ||
            fully_qualified_artifact_id.StartsWith("com.squareup")
            ||
            fully_qualified_artifact_id.StartsWith("io.grpc")
            ||
            fully_qualified_artifact_id.StartsWith("io.reactivex.rxjava3")
            ||
            fully_qualified_artifact_id.StartsWith("io.reactivex.rxjava2")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.j2objc")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.guava")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.auto.value")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.code.gson")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.crypto.tink")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.android:annotations")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.android.datatransport")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.code.findbugs")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.dagger")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.errorprone")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.zxing")
            ||
            fully_qualified_artifact_id.StartsWith("io.opencensus")
            ||
            fully_qualified_artifact_id.StartsWith("io.perfmark")
            ||
            fully_qualified_artifact_id.StartsWith("javax.inject")
            ||
            fully_qualified_artifact_id.StartsWith("org.tensorflow")
            ||
            fully_qualified_artifact_id.StartsWith("com.android.volley")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.accompanist")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.assistant.appactions.suggestions")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.flogger")
            ||
            fully_qualified_artifact_id.StartsWith("io.github.aakira")            
        )
    {
        const string l = "The Apache Software License, Version 2.0";
        const string u = "https://www.apache.org/licenses/LICENSE-2.0.txt";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("org.checkerframework")
            ||
            fully_qualified_artifact_id.StartsWith("org.codehaus.mojo")
        )
    {
        const string l = "MIT";
        const string u = "http://opensource.org/licenses/MIT";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.github.bumptech.glide")
        )
    {
        const string l = "The Apache Software License, Version 2.0 AND Simplified BSD License";
        const string u = "https://www.apache.org/licenses/LICENSE-2.0.txt;http://www.opensource.org/licenses/bsd-license";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("org.reactivestreams")
        )
    {
        const string l = "MIT-0";
        const string u = "https://spdx.org/licenses/MIT-0.html";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.google.android.gms")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.android.odml")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.android.ump")
            ||
            fully_qualified_artifact_id.StartsWith("com.google.assistant.appactions.widgets")            
        )
    {
        const string l = "Android Software Development Kit License";
        const string u = "https://developer.android.com/studio/terms";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("org.chromium.net")
        )
    {
        const string l = "Chromium and built-in dependencies";
        const string u = "https://storage.cloud.google.com/chromium-cronet/android/72.0.3626.96/Release/cronet/LICENSE";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.google.mlkit")
        )
    {
        const string l = "ML Kit Terms of Service";
        const string u = "https://developers.google.com/ml-kit/terms";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.google.android.play")
        )
    {
        const string l = "Play Core Software Development Kit Terms of Service";
        const string u = "https://developer.android.com/guide/playcore#license";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.google.android.libraries.places")
        )
    {
        const string l = "Google Maps Platform Terms of Service";
        const string u = "https://cloud.google.com/maps-platform/terms/";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }

    if
        (
            fully_qualified_artifact_id.StartsWith("com.google.protobuf")
        )
    {
        const string l = "BSD 2 Clause AND BSD 3 Clause";
        const string u = "https://opensource.org/licenses/BSD-2-Clause;https://opensource.org/licenses/BSD-3-Clause;";

        if (!Licenses.ContainsKey(l))
        {
            Licenses.Add(l, u);
        }

        return l;
    }


    return null;
};

Task ("generate-component-governance")
    .IsDependentOn("mappings-artifact-nuget")
    .Does
    (
        () =>
        {
            Manifest manifest = new Manifest();

            manifest.MappingMavenArtifact2NuGetPackage = mappings_artifact_nuget;

            Console.WriteLine($"Saving ComponetGovernanceManifest cgmanifest.json...");
            manifest.Save("./cgmanifest.json");

            System.IO.File.WriteAllText
                                (
                                    "Licenses.json",
                                    Newtonsoft.Json.JsonConvert.SerializeObject
                                                                            (
                                                                                Licenses,
                                                                                Formatting.Indented
                                                                            )
                                );
            return;
        }
    );

Task ("mappings-artifact-nuget")
    .Does
    (
        () =>
        {
            using (StringReader string_reader = new StringReader(System.IO.File.ReadAllText(@"./config.json")))
            {
                JsonTextReader jtr = new JsonTextReader(string_reader);
                binderator_json_array = (JArray)JToken.ReadFrom(jtr);
            }

            foreach(JObject jo in binderator_json_array[0]["artifacts"])
            {
                bool? dependency_only = (bool?) jo["dependencyOnly"];
                if ( dependency_only == true)
                {
                    continue;
                }

                string group_id  	= (string) jo["groupId"];
                string artifact_id  = (string) jo["artifactId"];
                string artifact_v   = (string) jo["version"];
                string nuget_id  	= (string) jo["nugetId"];
                string nuget_v  	= (string) jo["nugetVersion"];

                mappings_artifact_nuget.Add
                (
                    (
                        $"{group_id}:{artifact_id}",
                        $"{artifact_v}",
                        $"{nuget_id}",
                        $"{nuget_v}"
                    )
                );
            }

            // dump for C# tuple initialization
            string dump = string.Join($",{Environment.NewLine}", mappings_artifact_nuget);
            dump = dump.Replace("(","(\"");
            dump = dump.Replace(")","\")");
            dump = dump.Replace(", ","\", \"");
            EnsureDirectoryExists("./output/");
			System.IO.File.WriteAllText($"./output/mappings-artifact-nuget.md", dump);

            return;
        }
    );

Task ("list-artifacts")
    .Does
    (
        () =>
        {
            using (StringReader string_reader = new StringReader(System.IO.File.ReadAllText(@"./config.json")))
            {
                JsonTextReader jtr = new JsonTextReader(string_reader);
                binderator_json_array = (JArray)JToken.ReadFrom(jtr);
            }

            Information("config.json list supported artifacts...");

            List<string> lines1 = new List<string>();
            List<string> lines2 = new List<string>();
            string space = " ";
            string dash = "-";
            int width1 = 70;
            int width2 = 20;

            lines1.Add($"# Artifacts supported");
            lines2.Add($"# Artifacts with versions supported");
            lines1.Add(Environment.NewLine);
            lines1.Add(Environment.NewLine);
            lines2.Add(Environment.NewLine);
            lines2.Add(Environment.NewLine);
            // | Maven Fully Qualified Artifact                                       | NuGet Package                                                        |
            lines1.Add($@"|{new string(' ', 4)}|{space.PadRight(width1)}|{space.PadRight(width1)}|");
            lines1.Add($@"|{new string('-', 4)}|{dash.PadRight(width1, '-')}|{dash.PadRight(width1, '-')}|");
            lines2.Add($@"|{new string(' ', 4)}|{space.PadRight(width1)}|{space.PadRight(width2)}|{space.PadRight(width1)}|{space.PadRight(width2)}|");
            lines2.Add($@"|{new string('-', 4)}|{dash.PadRight(width1, '-')}|{dash.PadRight(width2, '-')}|{dash.PadRight(width1, '-')}|{dash.PadRight(width2, '-')}|");

            int i = 1;

            foreach(JObject jo in binderator_json_array[0]["artifacts"])
            {
                bool? dependency_only = (bool?) jo["dependencyOnly"];
                if ( dependency_only == true)
                {
                    continue;
                }

                string group_id  	= (string) jo["groupId"];
                string artifact_id  = (string) jo["artifactId"];
                string artifact_v   = (string) jo["version"];
                string nuget_id  	= (string) jo["nugetId"];
                string nuget_v  	= (string) jo["nugetVersion"];

                string maven = $"{group_id}:{artifact_id}";
                string nuget = $"{nuget_id}";
                string index = i.ToString();
                string line1 = $@"|{index.PadLeft(4)}|{maven.PadRight(width1)}|{nuget.PadRight(width1)}|";
                string line2 = $@"|{index.PadLeft(4)}|{maven.PadRight(width1)}|{artifact_v.PadRight(width2)}|{nuget.PadRight(width1)}|{nuget_v.PadRight(width2)}|";

                lines1.Add(line1);
                lines2.Add(line2);

                i++;
            }

            EnsureDirectoryExists("./output/");
			System.IO.File.WriteAllLines($"./output/artifact-list.md", lines1.ToArray());
			System.IO.File.WriteAllLines($"./output/artifact-list-with-versions.md", lines2.ToArray());
			System.IO.File.WriteAllLines($"./output/artifact-list-{DateTime.Now.ToString("yyyyMMdd")}.md", lines1.ToArray());
			System.IO.File.WriteAllLines($"./output/artifact-list-with-versions-{DateTime.Now.ToString("yyyyMMdd")}.md", lines2.ToArray());
            EnsureDirectoryExists("./docs/");
			System.IO.File.WriteAllLines($"./docs/artifact-list.md", lines1.ToArray());
			System.IO.File.WriteAllLines($"./docs/artifact-list-with-versions.md", lines2.ToArray());
        }
    );

Task ("spell-check")
    .Does
    (
        () =>
        {
            if (FileExists(file_spell_errors))
            {
                DeleteFile(file_spell_errors);
            }
            EnsureDirectoryExists("./externals/");
            string url = "https://raw.githubusercontent.com/titoBouzout/Dictionaries/master/";

            string[] files_dictionaries = new[]
            {
                "English (American).dic",
                "English (American).txt",
                "English (American).aff",
            };
            foreach(string file_dictionary in files_dictionaries)
            {
                string url_full = url + System.Uri.EscapeDataString(file_dictionary);
                Information($"Downloading ");
                Information($"      {url_full}");
                if (!FileExists($"./externals/{file_dictionary}"))
                {
                    DownloadFile(url_full, $"./externals/{file_dictionary}");
                }
            }

            var dictionary = WeCantSpell.Hunspell.WordList.CreateFromFiles(@"externals/English (American).dic");
            var words = new[]
            {
                "Xamarin",
                "AndroidX",
                "IdentifierCommon",
                "IdentifierProvider",
                "AppCompat",
                "AppCompatResources",
                "Runtime",
                "AsyncLayoutInflater",
                "AutoFill",
                "Biometric",
                "Camera2",
                "Lifecycle",
                "CardView",
                "ConstraintLayout",
                "CoordinatorLayout",
                "ContentPager",
                "CursorAdapter",
                "CustomView",
                "DataBinding",
                "DataBindingAdapters",
                "DataBindingCommon",
                "DataBindingRuntime",
                "ViewBinding",
                "DocumentFile",
                "DrawerLayout",
                "DynamicAnimation",
                "Emoji",
                "ExifInterface",
                "GridLayout",
                "HeifWriter",
                "Interpolator",
                "Leanback",
                "V14",
                "UI",
                "Utils",
                "V13",
                "V4",
                "LiveData",
                "ViewModel",
                "ViewModelSavedState",
                "LocalBroadcastManager",
                "Media2",
                "MediaRouter",
                "MultiDex",
                "Runtime",
                "PercentLayout",
                "RecyclerView",
                "SavedState",
                "SlidingPaneLayout",
                "Sqlite",
                "SwipeRefreshLayout",
                "TvProvider",
                "VectorDrawable",
                "VersionedParcelable",
                "ViewPager",
                "ViewPager2",
                "WebKit",
                "WindowExtensions",
                "SecurityCrypto",
                "Java8",
                "ReactiveStreams",
                "Ktx",
                "RxJava2",
                "RxJava3",
                "GoogleShortcuts",
                "WindowJava",
                "Startup",
                "StartupRuntime",
                "MaterialIcons",
                "Saveable",
                "Util",
                "Accompanist",
                "Compose",
                "Data",
                "Preview",
                "Theme",
                "Tooling",
                "AAkira",
                "Napier",
                "DrawablePainter",
                "FlowLayout",
                "Pager",
                "Indicators",
                "Permissions",
                "Placeholder",
                "Material",
                "SwipeRefresh",
                "SystemUIController",
                "ProfileInstaller",
                "Kotlin",
                "StdLib",
                "Jdk7",
                "Jdk8",
                "Jetbrains",
                "KotlinX",
                "Coroutines",
                "Jvm",
                "GoogleGson",
                "Rx2",
                "AutoValue",
                "ReactiveX",
                "RxJava",
                "Crypto",
                "Tink",
                "PhoneInteractions",
                "RemoteInteractions",
                "Emoji2",
                "ViewsHelper",
                "ResourceInspection",
                "SplashScreen",
                "FailureAccess",
                "ListenableFuture",
                "J2Objc",
                "CheckerFramework",
                "CheckerQual",
                "CheckerCompatQual",
                "WindowRxJava2",
                "WindowRxJava3",
                "AppActions",
                "Rx3",
                "SystemBackend",
                "InstallReferrer",
                "PoolingContainer",
                "Dev",
                "ChrisBanes",
                "Material3",
                "WindowSizeClass",
                "Adapter3",
                "RxAndroid",
                "RxKotlin",
                "RxAndroid",
                "RxKotlin",
                "WatchFace",
                "ClientGuava",
                "Proto",
                "Renderer",
                "DataStore",
                "AnimationAndroid",
                "CoreAndroid",
                "GraphicsAndroid",
                "FoundationAndroid",
                "LayoutAndroid",
                "MaterialAndroid",
                "CoreAndroid",
                "ExtendedAndroid",
                "RippleAndroid",
                "RuntimeAndroid",
                "SaveableAndroid",
                "UIAndroid",
                "GeometryAndroid",
                "GraphicsAndroid",
                "TextAndroid",
                "ToolingAndroid",
                "DataAndroid",
                "PreviewAndroid",
                "UnitAndroid",
                "UtilAndroid",
                "ProtoLayout",
                "PlayServicesAuth",
                "GoogleAndroid",
                "GoogleId",
                "PrivacySandbox",
                "AdsServices",
                "Material3Android",
                "WindowSizeClassAndroid",
                "ExoPlayer",
                "Media3",
                "DataSource",
                "CroNet",
                "OkHttp",
                "Rtmp",
                "Hls",
                "Ima",
                "Rtsp",
                "SmoothStreaming",
                "WorkManager",
                "Ui",
                "InteractiveMedia",
                "V3",
                "AntMedia",
                "RtmpClient",
                "OkIO",
                "Parcelize",
                "AtomicFU",
                "Protobuf",
                "EmojiPicker",
                "Muxer",
                "AopAlliance",
                "DataTransport",
                "TransportApi",
                "DataTransport",
                "TransportBackendCct",
                "DataTransport",
                "TransportRuntime",
                "UserMessagingPlatform",
                "FindBugs",
                "JSR305",
                "ErrorProne",
                "FlatBuffers",
                "Guice",
                "JavaLite",
                "ZXing",
                "JavaPoet",
                "OkHttp3",
                "LoggingInterceptor",
                "OkHttp3",
                "Brotli",
                "TLS",
                "UrlConnection",
                "Retrofit2",
                "AdapterRxJava2",
                "ConverterGson",
                "Retrofit2",
                "ConverterScalars",
                "Grpc",
                "Api",
                "OpenCensus",
                "OpenCensusApi",
                "OpenCensusContribGrpcMetrics",
                "PerfMark",
                "PerfMarkApi",
                "InjectApi",
                "JavaX",
                "CodeHaus",
                "Mojo",
                "AnimalSnifferAnnotations",
                "OW2",
                "ASM",
                "TensorFlow",
                "Gpu",
                "TensorFlow",
                "Metadata",
                "TF",
                "PlayServices",
           };

            var dictionary_custom = WeCantSpell.Hunspell.WordList.CreateFromWords(words);

            using (StringReader string_reader = new StringReader(System.IO.File.ReadAllText(@"./config.json")))
            {
                JsonTextReader jtr = new JsonTextReader(string_reader);
                binderator_json_array = (JArray)JToken.ReadFrom(jtr);
            }

            spell_errors = new List<string>();
            Information("config.json spell checking...");

            foreach(JObject jo in binderator_json_array[0]["artifacts"])
            {
                bool? dependency_only = (bool?) jo["dependencyOnly"];
                if ( dependency_only == true)
                {
                    continue;
                }
                string nuget_id  	= (string) jo["nugetId"];
                Information($"       spell-check {nuget_id}");

                string[] nuget_id_parts = nuget_id.Split('.');
                foreach(string nuget_id_part in nuget_id_parts)
                {
                    bool check_dictionary_custom = dictionary_custom.Check(nuget_id_part);
                    Information($"      check_dictionary_custom {nuget_id_part} = {check_dictionary_custom}");
                    if (check_dictionary_custom)
                    {
                        Information($"          Found in custom dictionary!");
                        continue;
                    }
                    bool check_dictionary = dictionary.Check(nuget_id_part);
                    Information($"      check_dictionary {nuget_id_part} = {check_dictionary}");
                    if (check_dictionary)
                    {
                        Information($"          Found in EN-US dictionary!");
                        continue;
                    }

                    Information($"Added {nuget_id_part} from {nuget_id}");
                    spell_errors.Add(nuget_id_part);
                }
            }

            if (spell_errors.Count > 0)
            {
                System.IO.File.WriteAllLines(file_spell_errors, spell_errors);
            }
        }
    );

Task ("namespace-check")
    .Does
    (
        () =>
        {
            // Namespace Checks
            FilePath[] files = new FilePath[]{};
            FilePath[] files_androidx = GetFiles("./generated/**/Androidx.*.cs").ToArray();
            FilePath[] files_com = GetFiles("./generated/**/Com.*.cs").ToArray();
            FilePath[] files_org = GetFiles("./generated/**/Org.*.cs").ToArray();
            FilePath[] files_io_1 = GetFiles("./generated/**/Io.*.cs").ToArray();
            FilePath[] files_io_2 = GetFiles("./generated/**/IO.*.cs").ToArray();
            FilePath[] files_net = GetFiles("./generated/**/Net.*.cs").ToArray();
            FilePath[] files_kotlin = GetFiles("./generated/**/Org.Jetbrains.Kotlin*.cs").ToArray();
            FilePath[] files_kotlinx = GetFiles("./generated/**/Org.Jetbrains.Kotlinx*.cs").ToArray();

            files = files.Concat(files_androidx.ToArray()).ToArray();
            files = files.Concat(files_com.ToArray()).ToArray();
            files = files.Concat(files_org.ToArray()).ToArray();
            files = files.Concat(files_net.ToArray()).ToArray();
            files = files.Concat(files_io_1.ToArray()).ToArray();
            files = files.Concat(files_io_2.ToArray()).ToArray();
            files = files.Concat(files_kotlin.ToArray()).ToArray();
            files = files.Concat(files_kotlinx.ToArray()).ToArray();

            if (files.Any())
            {
                string[] namespaces = Array.ConvertAll(files, x => x.ToString());
                System.IO.File.WriteAllLines("./output/namespaces.md", namespaces);

                StringBuilder msg = new StringBuilder("Namespaces!!!");
                msg.AppendLine();
                msg.AppendLine(string.Join(System.Environment.NewLine, namespaces));

                throw new Exception(msg.ToString());
            }

            return;
        }
    );

Task("binderate-diff")
    .Does
    (
        () =>
        {
			EnsureDirectoryExists("./output/");

			// "git diff -U999999 main:config.json config.json" > ./output/config.json.diff-from-main.txt"
			string process = "git";
			string process_args = "diff -U999999 main:config.json config.json";
			IEnumerable<string> redirectedStandardOutput;
			ProcessSettings process_settings = new ProcessSettings ()
			{
             Arguments = process_args,
             RedirectStandardOutput = true
         	};
			int exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
			System.IO.File.WriteAllLines("./output/config.json.diff-from-main.txt", redirectedStandardOutput.ToArray());
			Information("Exit code: {0}", exitCodeWithoutArguments);
		}
	);

void RunProcess(FilePath file, string args)
{
    int exit_code = StartProcess(file, args);
    if (exit_code != 0)
    {
        throw new Exception ($"Process {file} exited with code {exit_code}.");
    }

    return;
}

System.Xml.XmlDocument xmldoc = null;
System.Xml.XmlNamespaceManager nsmgr = null;

Task ("target-sdk-version-check")
    .Does
    (
        () =>
        {
            FilePath        config_file = MakeAbsolute(new FilePath("./config.json")).FullPath;
            DirectoryPath   base_path = MakeAbsolute(new DirectoryPath ("./")).FullPath;

            // Run the dotnet tool for binderator
            RunProcess
            (
                "xamarin-android-binderator",
                $"--config=\"{config_file}\" --basepath=\"{base_path}\""
            );

            Dictionary<(string group, string artifact), int> artifacts_target_sdk = null;
            Dictionary<(string group, string artifact), string> artifacts_versions = null;
            Parallel.Invoke
            (
                () =>
                {
                    FilePath[] files_android_manifests = GetFiles("./externals/**/AndroidManifest.xml").ToArray();
                    foreach(FilePath fp in files_android_manifests)
                    {
                        Information($"files_android_manifest = {fp}");
                    }

                    artifacts_target_sdk = new Dictionary<(string group, string artifact), int>();

                    foreach(FilePath fp in files_android_manifests)
                    {
                        Information($"      AndroidManifest = {fp}");
                        xmldoc = new System.Xml.XmlDocument();
                        xmldoc.Load(fp.ToString());

                        nsmgr = new System.Xml.XmlNamespaceManager(xmldoc.NameTable);
                        nsmgr.AddNamespace("android", "http://schemas.android.com/apk/res/android");

                        string t = xmldoc.SelectSingleNode($@"/manifest/uses-sdk/@android:targetSdkVersion", nsmgr)?.Value;
                        string mc = xmldoc.SelectSingleNode($@"/manifest/uses-sdk/@android:minCompileSdk", nsmgr)?.Value;

                        string[] path_parts = fp
                                                .ToString()
                                                .Split
                                                    (
                                                        new char[]{ '/' },
                                                        System.StringSplitOptions.None
                                                    );

                        string a = path_parts[path_parts.Length - 2];
                        string g = path_parts[path_parts.Length - 3];

                        Information($"              artifact  = {g}:{a} - target SDK version = {t} min compile SDK = {mc}");
                        int t_sdk;
                        bool ok = int.TryParse(t, out t_sdk);
                        if (ok)
                        {
                            artifacts_target_sdk.Add((g,a), t_sdk);
                        }
                    }

                    return;
                },
                () =>
                {
                    FilePath[] files_poms = GetFiles("./externals/**/*.pom").ToArray();
                    foreach(FilePath fp in files_poms)
                    {
                        Information($"files_android_pom     = {fp}");
                    }

                    artifacts_versions = new Dictionary<(string group, string artifact), string>();


                    foreach(FilePath fp in files_poms)
                    {
                        Information($"      pom.xml = {fp}");
                        xmldoc = new System.Xml.XmlDocument();
                        xmldoc.Load(fp.ToString());

                        nsmgr = new System.Xml.XmlNamespaceManager(xmldoc.NameTable);
                        nsmgr.AddNamespace("pom", "http://maven.apache.org/POM/4.0.0");

                        string v = xmldoc.SelectSingleNode($@"/pom:project/pom:version", nsmgr)?.InnerText;
                        Information($"              version     = {v}");
                        if ( v == null )
                        {
                            v = xmldoc.SelectSingleNode($@"/pom:project/pom:parent/pom:version", nsmgr)?.InnerText;
                        }

                        string g = xmldoc.SelectSingleNode($@"/pom:project/pom:groupId", nsmgr)?.InnerText;
                        if ( g == null )
                        {
                            g = xmldoc.SelectSingleNode($@"/pom:project/pom:parent/pom:groupId", nsmgr)?.InnerText;
                        }
                        Information($"              groupId     = {g}");

                        string a = xmldoc.SelectSingleNode($@"/pom:project/pom:artifactId", nsmgr)?.InnerText;
                        Information($"              artifactId  = {a}");

                        artifacts_versions.Add((g, a), v);
                    }
                    return;
                }
            );

            Dictionary<(string group, string artifact), (string version, int sdk)> artifact_fq_sdk;
            artifact_fq_sdk = new Dictionary<(string group, string artifact), (string version, int sdk)>();

            foreach (KeyValuePair<(string group, string artifact), int> ga in artifacts_target_sdk)
            {
                int t_sdk = ga.Value;
                string v = artifacts_versions[ga.Key];

                artifact_fq_sdk.Add((ga.Key.group, ga.Key.artifact), (v, t_sdk));
            }

            List<string> log_artifacts_sdk_targets = new List<string>();

            foreach (KeyValuePair<(string g, string a), (string v, int sdk)> ga in artifact_fq_sdk)
            {
                string log = $"{ga.Key.g}.{ga.Key.a}:{ga.Value.v} - SDK {ga.Value.sdk}";
                Information(log);
                log_artifacts_sdk_targets.Add(log);
            }

            System.IO.File.WriteAllLines("./output/artifacts_sdk_targets.md", log_artifacts_sdk_targets.ToArray());

            return;
        }
    );

Task ("api-diff-markdown-info-pr")
    .IsDependentOn("binderate-diff")
    .Does
    (
        () =>
        {
            // TODO: api-diff markdown info based on diff from main
            string[] lines_from_file = System.IO.File.ReadAllLines("./output/config.json.diff-from-main.txt");

            List<string> lines = new List<string>(lines_from_file);
            List<string> changelog = new List<string>();

            List<List<string>> changelog_blocks = new List<List<string>>();
            List<string> changelog_block = null;
            int idx_start = -1;
            int idx_stop = -1;
            for(int i = 0; i < lines.Count(); i++)
            {
                string line = lines[i];
                if (line.Contains("groupId"))
                {
                    idx_start = i;
                }

                if(line.Contains("dependencyOnly"))
                {
                    if (line.StartsWith("-"))
                    {
                        continue;
                    }
                    idx_stop = i;
                }

                if (idx_start != -1 && idx_stop != -1)
                {
                    changelog_block = lines.GetRange(idx_start, idx_stop - idx_start);
                    changelog_blocks.Add(changelog_block);
                    idx_start = -1;
                    idx_stop = -1;
                }
            }


            foreach (List<string> changelog_block_lines in changelog_blocks)
            {
                string g = null;
                string a = null;
                string v_artifact_new = null;
                string v_artifact_old = null;
                string v_nuget_new = null;
                string v_nuget_old = null;
                string nuget_id = null;

                foreach(string line in changelog_block_lines)
                {
                    if (line.Contains("groupId"))
                    {
                        g = ParseDiffLine(line, "groupId");
                        continue;
                    }
                    if (line.Contains("artifactId"))
                    {
                        a = ParseDiffLine(line, "artifactId");
                        continue;
                    }
                    if (line.Contains("version"))
                    {
                        if (line.StartsWith("+"))
                        {
                            v_artifact_new = ParseDiffLine(line, "version");
                            continue;
                        }

                        v_artifact_old = ParseDiffLine(line, "version");
                        continue;
                    }

                    if (line.Contains("nugetVersion"))
                    {
                        v_nuget_old = ParseDiffLine(line, "nugetVersion");
                        continue;
                    }
                    if (line.Contains("nugetVersion"))
                    {
                        v_nuget_new = ParseDiffLine(line, "nugetVersion");
                        continue;
                    }
                    if (line.Contains("nugetId"))
                    {
                        nuget_id = ParseDiffLine(line, "nugetId");
                        continue;
                    }
                }

                if(v_artifact_new == null)
                {
                    continue;
                }

                string changelog_line = $"- `{g}:{a}` - {v_artifact_old} -> {v_artifact_new}";

                changelog.Add(changelog_line);
            }

            if (changelog.Count > 0)
            {
                System.IO.File.WriteAllLines("./output/changelog.md", changelog);
            }

            return;
        }
    );

string ParseDiffLine(string line, string name)
{
    if (line[0] == '-')
    {
        StringBuilder sb = new StringBuilder(line);
        sb[0] = ' ';
        line = sb.ToString();
    }

    return new string
                    (
                        line
                            .ToCharArray()
                            .Where(c => !Char.IsWhiteSpace(c))
                            .ToArray()
                    )
                    .Replace("\"", "")
                    .Replace("+", "")
                    .Replace("-", "")
                    .Replace(":", "")
                    .Replace(name, "")
                    .Replace(",", "")
                    ;
}

Task ("api-diff-analysis")
    .Does
    (
        () =>
        {
            using (StringReader string_reader = new StringReader(System.IO.File.ReadAllText(@"./config.json")))
            {
                JsonTextReader jtr = new JsonTextReader(string_reader);
                binderator_json_array = (JArray)JToken.ReadFrom(jtr);
            }

            string dir = "./output/api-diff";
            EnsureDirectoryExists(dir);
            DirectoryPathCollection directories = GetSubDirectories(dir);
            Dictionary<string, string>  nugets_modified = new Dictionary<string, string>();
            Dictionary<string, int[]>   api_changes_breaking_removed = new Dictionary<string, int[]>();

            foreach(DirectoryPath d in directories)
            {
                string d_name = d.GetDirectoryName();

                Information( $"Directory    = {d}");
                Information( $"     nugetId    = {d.GetDirectoryName()}");

                bool    dependencyOnly  = true;
                string  groupId         = null;
                string  artifactId      = null;
                string  nugetId         = null;
                string  nugetVersion    = null;
                // no guarantees thta config.json is sorted, so linear "search"
                // TODO: sort + (LINQ or binary serch)
                foreach(JObject jo in binderator_json_array[0]["artifacts"])
                {
                    dependencyOnly  = (bool)    jo["dependencyOnly"];

                    if ( dependencyOnly == true)
                    {
                        continue;
                    }
                    
                    groupId         = (string)  jo["groupId"];
                    artifactId      = (string)  jo["artifactId"];
                    nugetId         = (string)  jo["nugetId"];
                    nugetVersion    = (string)  jo["nugetVersion"];

                    if (nugetId == d_name)
                    {
                        Information( $"     groupId                     = {groupId}");
                        Information( $"     artifactId                  = {artifactId}");
                        Information( $"     artifactId  fully qualified = {groupId}.{artifactId}");

                        nugets_modified.Add(d_name, $"{groupId}.{artifactId}");
                    }
                }
            }

            FilePathCollection files = GetFiles(@"./output/api-diff/**/*.dll.breaking.md");
            List<string> commands = new List<string>();

            foreach(FilePath f in files)
            {
                Information($"file = {f}");

                string[] lines_in_file = System.IO.File.ReadAllLines(f.ToString());
                List<int> line_numbers = new List<int>();

                for(int i=0; i<lines_in_file.Length; i++)
                {
                    if (lines_in_file[i].ToLower().Contains("remove"))
                    {
                        line_numbers.Add(i + 1);
                        string command = $"code -n -g {f}:{i + 1}";
                        Information($"      command = {command}");
                        commands.Add(command);
                    }
                }

                api_changes_breaking_removed.Add(f.ToString(), line_numbers.ToArray());
            }

            System.IO.File.WriteAllLines("./output/commands-open-file.sh", commands.ToArray());

            var nugets_modified_ordered = nugets_modified.ToList();

            nugets_modified_ordered.Sort((pair1,pair2) => pair1.Value.CompareTo(pair2.Value));

            string[] lines = nugets_modified_ordered
                                            .Select(kv => $"- {kv.Value}" + Environment.NewLine + "\t - " + kv.Key)
                                            .ToArray();
            System.IO.File.WriteAllLines("./output/nugets-with-changed-APIs.md", lines);

            return;
        }
    );

Task("nuget-structure-analysis")
.Does
    (
        () =>
        {
            string path = "./output/*.nupkg";
            FilePathCollection files_configs = GetFiles(path);
            foreach(FilePath f in files_configs)
            {
                Information($"File  = {f}");
                string d_zip = $"{f.ToString().Replace(".nupkg", "")}";
                if (DirectoryExists(d_zip))
                {
                    DeleteDirectory
                            (
                                d_zip,
                                new DeleteDirectorySettings
                                {
                                    Recursive = true,
                                    Force = true
                                }
                            );
                }
                Unzip($"{f}", d_zip);

                IEnumerable<string> redirected_std_out;
                IEnumerable<string> redirected_std_err;
                int exit_code =
                                StartProcess
                                    (
                                        "tree",
                                        new ProcessSettings
                                        {
                                            Arguments = $"-H {f.ToString().Replace(".nupkg", "")}",
                                            // WorkingDirectory = "./"
                                            RedirectStandardOutput = true,
                                            RedirectStandardError = true
                                        },
                                        out redirected_std_out,
                                        out redirected_std_err
                                    );

                System.IO.File.WriteAllLines
                                    (
                                        $"{f.ToString().Replace(".nupkg", ".md")}",
                                        redirected_std_out.ToArray()
                                    );
            }
        }
    );


Task ("read-analysis-files")
    .IsDependentOn ("mappings-artifact-nuget")
    .IsDependentOn ("binderate-diff")
    .IsDependentOn ("api-diff-markdown-info-pr")
    .IsDependentOn ("namespace-check")
    .IsDependentOn ("spell-check")
    .IsDependentOn ("api-diff-analysis")
    .IsDependentOn ("list-artifacts")
    //.IsDependentOn ("nuget-structure-analysis")
    .IsDependentOn ("generate-namespace-file")
    .IsDependentOn ("generate-markdown-publish-log")
    .IsDependentOn ("tools-executive-order")
    .IsDependentOn ("generate-component-governance")
    .IsDependentOn ("java-resolution-analysis")
    .Does
    (
        () =>
        {
            List<string> files = new List<string>
            {
                "./output/spell-errors.txt",
                "./output/changelog.md",
                "./output/config.json.diff-from-main.txt",
                "./output/missing_dotnet_override_type.csv",
                "./output/missing_dotnet_type.csv",
                "./output/missing_java_type.csv",
                "./output/nugets-with-changed-APIs.md",
                "./output/commands-open-file.sh",
                "./output/artifacts_sdk_targets.md",
                "./output/ci-publish-log.txt",
                "./output/name-tag.md",
            };

            if ( ! FileExists("./output/spell-errors.txt") )
            {
                files.Remove("./output/spell-errors.txt");
            }

			string process = "code";
			string process_args = $"-n {string.Join(" ", files)}";
			IEnumerable<string> redirectedStandardOutput;
			ProcessSettings process_settings = new ProcessSettings ()
			{
             Arguments = process_args,
             RedirectStandardOutput = true
         	};
			int exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
			Information("Exit code: {0}", exitCodeWithoutArguments);
        }
    );

// notes for published artifacts by tags collected from CI builds after publishing/pushing
// it was very handy when we need to delist packages
// https://github.com/moljac/HolisticWare.WebSite.Notes/tree/master/xamarin/products/xamarin-platform/traditional-standard/xamarin.android/advanced/bindings/android-ecosystem/androidx/updates/tags
Task("generate-markdown-publish-log")
    .Does
    (
        () =>
        {
            string ci_publish_log_file = "./output/ci-publish-log.txt";

            string[] ci_publish_log_lines = null;

            if (System.IO.File.Exists(ci_publish_log_file))
            {
                ci_publish_log_lines = System.IO.File.ReadAllLines(ci_publish_log_file);
            }
            else
            {
                Error("No log file found");
                Error($"     save ci log to {ci_publish_log_file}");

                System.IO.File.WriteAllText
                        (
                            ci_publish_log_file,
                            $"dotnet cake utilities.cake -t=generate-markdown-publish-log"
                            + Environment.NewLine +
                            "{ci_publish_log_file}          paste log from CI"
                        );

                return;
            }

            int row = 1;
            string n1 = null;
            string n2 = null;
            List<string> packages           = new List<string>();
            List<string> packages_published = new List<string>();
            List<string> packages_rejected  = new List<string>();


            foreach (string s in ci_publish_log_lines)
            {
                if (s.Contains("Pushing ") && s.Contains(".nupkg to 'https://www.nuget.org/api/v2/package'..."))
                {
                    n1 = s.Substring(37, s.Length - 39);
                    n2 = n1.Replace(" to 'https://www.nuget.org/api/v2/package'.", "");

                    packages.Add(n2);

                    if
                        (
                            ci_publish_log_lines[row+1].Contains("Conflict https://www.nuget.org/api/v2/package")
                            &&
                            ci_publish_log_lines[row+2].Contains(".nupkg' already exists at feed 'https://www.nuget.org/api/v2/package'.")
                        )
                    {
                        packages_rejected.Add(n2);
                    }
                    else if
                        (
                            ci_publish_log_lines[row+2].Contains("Created https://www.nuget.org/api/v2/package")
                            &&
                            ci_publish_log_lines[row+3].Contains("Your package was pushed.")
                        )
                    {
                        packages_published.Add(n2);
                    }
                    else if
                        (
                            ci_publish_log_lines[row+1].Contains("Created https://www.nuget.org/api/v2/package")
                            &&
                            // if warning is present
                            ci_publish_log_lines[row+2].Contains("Your package was pushed.")
                        )
                    {
                        packages_published.Add(n2);
                    }
                    else
                    {
                        Error($"n1                          = {n1}");
                        Error($"n2                          = {n2}");
                        Error($"ci_publish_log_lines[row+1] = {ci_publish_log_lines[row+1]}");
                        Error($"ci_publish_log_lines[row+2] = {ci_publish_log_lines[row+2]}");
                        Error($"ci_publish_log_lines[row+3] = {ci_publish_log_lines[row+3]}");
                        Error($"ci_publish_log_lines[row+4] = {ci_publish_log_lines[row+4]}");
                    }
                }

                row++;
            }

            string dump_packages_published  = string.Join($"{Environment.NewLine}", packages_published);
            string dump_packages_rejected   = string.Join($"{Environment.NewLine}", packages_rejected);

            string markdown =
@"
# name-tag

name-tag.md

Total packages = %PackagesTotal.Count%

Pushed / Published: %PackagesPushedPublished.Count%


```
%PackagesPushedPublished%
```

Rejected / Duplicates: %PackagesRejectedDuplicates.Count%

```
%PackagesRejectedDuplicates%
```
";
            markdown = markdown.Replace("%PackagesTotal.Count%", $"{packages.Count}");
            markdown = markdown.Replace("%PackagesPushedPublished.Count%", $"{packages_published.Count}");
            markdown = markdown.Replace("%PackagesRejectedDuplicates.Count%", $"{packages_rejected.Count}");
            markdown = markdown.Replace("%PackagesPushedPublished%", dump_packages_published);
            markdown = markdown.Replace("%PackagesRejectedDuplicates%", dump_packages_rejected);

            System.IO.File.WriteAllText("./output/name-tag.md", markdown);
        }
    );

Task("dependencies")
    .Does
    (
        () =>
        {
            if (!(binderator_json_array?.Count > 0))
            {
                using (StringReader string_reader = new StringReader(System.IO.File.ReadAllText(@"./config.json")))
                {
                    JsonTextReader jtr = new JsonTextReader(string_reader);
                    binderator_json_array = (JArray)JToken.ReadFrom(jtr);
                }
            }

            Warning("config.json dependencies ...");
            foreach(JObject jo in binderator_json_array[0]["artifacts"])
            {
                string groupId      = (string) jo["groupId"];
                string artifactId   = (string) jo["artifactId"];
                string nugetId      = (string) jo["nugetId"];
                string nugetVersion = (string) jo["nugetVersion"];

            }
        }
    );

Task("generate-namespace-file")
    .Does
    (
        () =>
        {
            var list = FindNamespacesInDirectory ("./generated");
            System.IO.File.WriteAllLines ("published-namespaces.txt", list);
        }
    );

Task("verify-namespace-file")
    .Does
    (
        () =>
        {
            var new_list = FindNamespacesInDirectory ("./generated");
            var old_list = System.IO.File.ReadAllLines ("published-namespaces.txt");

            var unhandled_changes = false;

            var new_ns = new_list.Except (old_list);

            if (new_ns.Any ()) {
                unhandled_changes = true;
                Console.WriteLine ("New Namespaces");
                Console.WriteLine ("--------------");

                foreach (var ns in new_ns)
                  Console.WriteLine (ns);

                Console.WriteLine ();
            }

            var removed_ns = old_list.Except (new_list);

            if (removed_ns.Any ()) {
                unhandled_changes = true;
                Console.WriteLine ("Removed Namespaces");
                Console.WriteLine ("------------------");

                foreach (var ns in removed_ns)
                    Console.WriteLine (ns);
            }

            if (unhandled_changes)
            {
                StringBuilder sb = new StringBuilder();
                sb.AppendLine($"Namespaces were added or removed.");
                sb.AppendLine($"please run:");
                sb.AppendLine($"    dotnet cake utilities.cake -t=generate-namespace-file");
                throw new Exception (sb.ToString());
            }
        }
    );

Task("tools-executive-order")
    .IsDependentOn ("tools-executive-oreder-csv-and-markdown")
    ;

Task("tools-executive-oreder-csv-and-markdown")
    .Does
    (
        () =>
        {
            StringBuilder sb = new StringBuilder();
            StringBuilder sb_md = new StringBuilder();
            sb.AppendLine("BuildToolName,BuildToolVersion");
            sb_md.AppendLine("# Executive Order Build Tools Inventory");
            sb_md.AppendLine();
            sb_md.AppendLine("./buildtoolsinventory.csv");
            sb_md.AppendLine();

			string process = null;
			string process_args = null;
			IEnumerable<string> redirectedStandardOutput = null;
			int exitCodeWithoutArguments;
			ProcessSettings process_settings = null;

            /*
                dotnet --info
                dotnet --list-sdks
                dotnet --list-runtimes

                too much info
                let's parse global.json for now
            */
            Newtonsoft.Json.Linq.JObject json_object = null;
            string global_json = System.IO.File.ReadAllText("./global.json");
            using (StringReader string_reader = new StringReader(global_json))
            {
                Newtonsoft.Json.JsonTextReader jtr = new Newtonsoft.Json.JsonTextReader(string_reader);
                json_object = (Newtonsoft.Json.Linq.JObject) Newtonsoft.Json.Linq.JToken.ReadFrom(jtr);
            }

            sb_md.AppendLine("```");
            sb_md.AppendLine(global_json);
            sb_md.AppendLine("```");
            foreach(Newtonsoft.Json.Linq.JProperty jp in json_object["sdk"])
            {
                string version  = (string) jp.Value;
                sb.AppendLine($"dotnet sdk, {version}");
                sb_md.AppendLine($"{jp.Name}{version}");
            }

            List
                <(
                    string nuget_id,
                    string version
                )> msbuild_sdks = new List
                                        <(
                                            string nuget_id,
                                            string vetsion
                                        )>();

            foreach(Newtonsoft.Json.Linq.JProperty jp in json_object["msbuild-sdks"])
            {
                string name  = (string) jp.Name;
                string value  = (string) jp.Value;
                msbuild_sdks.Add((name, value));
                sb.AppendLine($"msbuild-sdks {name}, {value}");
            }

            /*
            mono --version
            */
			process = "mono";
			process_args = "--version";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
            try
            {
                exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
                foreach (string line in redirectedStandardOutput.ToList())
                {
                    string tool = null;
                    string version = null;

                    if
                        (
                            line.Contains("Mono JIT compiler version ")
                        )
                    {
                        tool = line.Replace("Mono JIT compiler version ", "");
                        version = tool;
                        sb.AppendLine($"Mono JIT compiler, {version}");
                    }
                }
            }
            catch
            {
                sb.AppendLine($"Mono JIT compiler, Not installed");
            }


            /*
            nuget
            */
			process = "nuget";
			process_args = "";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
            try
            {
                exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
                foreach (string line in redirectedStandardOutput.ToList())
                {
                    string tool = null;
                    string version = null;

                    if
                        (
                            line.Contains("NuGet Version: ")
                        )
                    {
                        tool = line.Replace("NuGet Version: ", "");
                        version = tool;
                        sb.AppendLine($"nuget, {version}");
                    }
                }
            }
            catch
            {
                sb.AppendLine($"NuGet package manager, Not installed");
            }

            /*
            xamarin-android-binderator --help
            -c, --config=VALUE         JSON Config File.
            -b, --basepath=VALUE       Default Base Path.
            -h, --help                 show this message and exit

            no version info

            let's parse
                dotnet tool list --global
            */
			process = "dotnet";
			process_args = "tool list --global";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
			exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
            foreach (string line in redirectedStandardOutput.ToList())
            {
                if
                    (
                        line.Contains("api-tools")
                        ||
                        line.Contains("boots")
                        ||
                        line.Contains("xamarin.androidx.migration.tool")
                        ||
                        line.Contains("xamarin.androidbinderator.tool")
                    )
                {
                    string line_csv = System.Text.RegularExpressions.Regex.Replace(line, @"\s+", "," );
                    Information($"line_csv = {line_csv}");
                    string[] parts = line_csv.Split(new string[] {","}, StringSplitOptions.RemoveEmptyEntries);
                    sb.AppendLine($"{parts[0]},{parts[1]}");
                }
            }

            /*
            gradle --version
            */
			process = "gradle";
			process_args = "--version";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
			exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
            foreach (string line in redirectedStandardOutput)
            {
                string tool = null;
                string version = null;

                if (line.Contains("Gradle"))
                {
                    tool = line.Replace("Gradle ", "");
                    version = tool;
                    sb.AppendLine($"Gradle, {version}");
                }
                else if (line.Contains("Kotlin:"))
                {
                    tool = line.Replace("Kotlin:", "").Trim();
                    version = tool;
                    sb.AppendLine($"Kotlin, {version}");
                }
                else if (line.Contains("Groovy:"))
                {
                    tool = line.Replace("Groovy:", "").Trim();
                    version = tool;
                    sb.AppendLine($"Groovy, {version}");
                }
                else if (line.Contains("Ant:"))
                {
                    tool = line.Replace("Ant:", "").Trim();
                    version = tool;
                    sb.AppendLine($"Ant, {version}");
                }
                else if (line.Contains("JVM:"))
                {
                    tool = line.Replace("JVM:", "").Trim();
                    version = tool;
                    sb.AppendLine($"JVM, {version}");
                }
            }
            /*
            java --version
            */
			process = "java";
			process_args = "--version";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
			exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
            foreach (string line in redirectedStandardOutput)
            {
                string tool = null;
                string version = null;

                if (line.Contains("openjdk"))
                {
                    tool = line.Replace("openjdk ", "");
                    version = tool;
                    sb.AppendLine($"openjdk, {version}");
                }
            }

            /*
            javac --version
            */
			process = "javac";
			process_args = "--version";
            process_settings = new ProcessSettings ()
			{
                Arguments = process_args,
                RedirectStandardOutput = true,
            };
			exitCodeWithoutArguments = StartProcess(process, process_settings, out redirectedStandardOutput);
            foreach (string line in redirectedStandardOutput)
            {
                string tool = null;
                string version = null;

                if (line.Contains("javac"))
                {
                    tool = line.Replace("javac ", "");
                    version = tool;
                    sb.AppendLine($"javac, {version}");
                }
            }

			System.IO.File.WriteAllText("./output/buildtoolsinventory.csv", sb.ToString());
			System.IO.File.WriteAllText("./docs/buildtoolsinventory.csv", sb.ToString());
			System.IO.File.WriteAllText("./output/buildtoolsinventory.md", sb_md.ToString());
			System.IO.File.WriteAllText("./docs/buildtoolsinventory.md", sb_md.ToString());

            return;
        }
    );


static List<string> FindNamespacesInDirectory (string directory)
{
    var list = new SortedSet<string> ();

    foreach (var file in System.IO.Directory.EnumerateFiles (directory, "*.dll", SearchOption.AllDirectories).Where (f => f.Replace ('\\', '/').Contains ("/obj/")))
        foreach (var ns in FindNamespaces (file))
            list.Add (ns);

    return list.ToList ();
}

static List<string> FindNamespaces (string assembly)
{
    var asm = AssemblyDefinition.ReadAssembly (assembly);
    var list = new SortedSet<string> ();

    foreach (var module in asm.Modules)
        foreach (var type in module.Types)
            if (!string.IsNullOrWhiteSpace (type.Namespace) && type.Namespace != "_Microsoft.Android.Resource.Designer" )
                list.Add (type.Namespace);

    return list.ToList ();
}

Task("java-resolution-analysis")
    .Does
    (
        () =>
        {
            string[] files = System.IO.Directory.GetFiles
                                                    (
                                                        "generated", 
                                                        "java-resolution-report.log", 
                                                        System.IO.SearchOption.AllDirectories
                                                    );


            Information(new string('-', 80));

            string dir = "output/java-resolution-analysis";
            EnsureDirectoryExists(dir);
            EnsureDirectoryExists($"{dir}/net8.0-android");

            ConcurrentDictionary
                    <
                        string,                                     // TFM
                        ConcurrentDictionary
                                <
                                    string,                         // maven artifact
                                    Dictionary
                                            <
                                                string,             // error
                                                (
                                                    string[] lines,                         // lines
                                                    Dictionary<string, int> types,          // types
                                                    Dictionary<string, int> types_filtered  // types
                                                )
                                            >
                                >
                    > java_resolution_analysis;
                    
            java_resolution_analysis =
                        new ConcurrentDictionary
                                    <
                                        string,                                     // TFM
                                        ConcurrentDictionary
                                                <
                                                    string,                         // maven artifact
                                                    Dictionary
                                                            <
                                                                string,             // error
                                                                (
                                                                    string[] lines,                         // lines
                                                                    Dictionary<string, int> types,          // types
                                                                    Dictionary<string, int> types_filtered  // types
                                                                )
                                                            >
                                                >
                                    >();

            java_resolution_analysis.TryAdd
                                        (
                                            "net8.0-android", 
                                            new ConcurrentDictionary
                                                        <
                                                            string, 
                                                            Dictionary
                                                            <
                                                                string, 
                                                                (
                                                                    string[] lines,                         // lines
                                                                    Dictionary<string, int> types,          // types
                                                                    Dictionary<string, int> types_filtered  // types
                                                                )
                                                            >
                                                        >()
                                        );

            Parallel.ForEach
                        (
                            files,
                            file =>
                            {
                                string file_cleaned = file
                                                        .Replace("generated\\", "")
                                                        .Replace("obj\\", "")
                                                        .Replace("Release\\", "")
                                                        .Replace("Debug\\", "")
                                                        .Replace("generated/", "")
                                                        .Replace("obj/", "")
                                                        .Replace("Release/", "")
                                                        .Replace("Debug/", "")
                                                        ;

                                string[] file_parts = file_cleaned.Split
                                                                    (
                                                                        new string[] { "\\", "/" }, 
                                                                        StringSplitOptions. None
                                                                    ); 

                                string tfm = file_parts[1];
                                string maven_artifact = file_parts[0];


                                string file_new = $"{dir}/{tfm}/{maven_artifact}.log";

                                StringBuilder sb = new StringBuilder();
                                sb.AppendLine($"  System.IO.File.Copy");
                                sb.AppendLine($"          file    : {file}");
                                sb.AppendLine($"          file_new: {file_new}");
                                Information(sb.ToString());

                                if ( !System.IO.File.Exists(file) )
                                {
                                    return;
                                }
                                    
                                System.IO.File.Copy(file, file_new, true);

                                string[] lines = System.IO.File.ReadAllLines(file);

                                string string_dollar_sign = "was removed because its name contains a dollar sign.";
                                // was removed because the Java base type '' could not be found.
                                

                                // List<string> errors_dollar_sign = new List<string>();
                                List<string>            errors_not_dollar_sign = new ();
                                Dictionary<string, int> java_resolution_types = new ();
                                Dictionary<string, int> java_resolution_types_filtered = new ();
    
                                foreach(string line in lines)
                                {
                                    switch(line)
                                    {
                                        case string a when a.Contains(string_dollar_sign): 
                                            break;
                                        default:
                                            int idx = line.IndexOf("type '");
                                            if(idx != -1)
                                            {
                                                string type_java = line.Substring(idx + 6);
                                                type_java = type_java
                                                                    .Replace("' could not be found.", "")
                                                                    ;

                                                if (java_resolution_types.ContainsKey(type_java))
                                                {
                                                    java_resolution_types[type_java]++;
                                                }
                                                else
                                                {
                                                    java_resolution_types.Add(type_java, 1);
                                                }

                                                if 
                                                    (
                                                        type_java.Contains("androidx.") 
                                                        ||
                                                        type_java.Contains("com.google.android.material") 
                                                        ||
                                                        type_java.Contains("com.google.assistant.appactions") 
                                                        ||
                                                        type_java.Contains("com.google.auto.value") 
                                                        ||
                                                        type_java.Contains("com.google.code.gson") 
                                                        ||
                                                        type_java.Contains("com.google.crypto.tink") 
                                                        ||
                                                        type_java.Contains("com.google.flogger") 
                                                        ||
                                                        type_java.Contains("com.google.guava") 
                                                        ||
                                                        type_java.Contains("com.google.j2objc") 
                                                        ||
                                                        type_java.Contains("dev.chrisbanes.snapper") 
                                                        ||
                                                        type_java.Contains("io.github.aakira") 
                                                        ||
                                                        type_java.Contains("io.reactivex.rxjava") 
                                                        ||
                                                        type_java.Contains("com.android.installreferrer.") 
                                                        ||
                                                        type_java.Contains("com.google.accompanist.") 
                                                    )
                                                {
                                                    if (java_resolution_types_filtered.ContainsKey(type_java))
                                                    {
                                                        java_resolution_types_filtered[type_java]++;
                                                    }
                                                    else
                                                    {
                                                        java_resolution_types_filtered.Add(type_java, 1);
                                                    }
                                                }
                                            }
                                            errors_not_dollar_sign.Add(line);
                                            break;
                                    }
                                }
                                
                                Dictionary
                                        <
                                            string, 
                                            (
                                                string[] lines,
                                                Dictionary<string, int> types,
                                                Dictionary<string, int> types_filtered
                                            )
                                        > 
                                        error_type_w_lines = new();

                                List<KeyValuePair<string, int>> types_sorted;
                                List<KeyValuePair<string, int>> types_sorted_filtered;

                                types_sorted                    = java_resolution_types.ToList();
                                types_sorted_filtered           = java_resolution_types_filtered.ToList();

                                types_sorted
                                            .Sort((x,y)=>x.Value.CompareTo(y.Value));
                                types_sorted_filtered
                                            .Sort((x,y)=>x.Value.CompareTo(y.Value));

                                error_type_w_lines.Add
                                                    (
                                                        "non dollar sign errors", 
                                                        (
                                                            lines: errors_not_dollar_sign.ToArray(),
                                                            java_resolution_types,
                                                            java_resolution_types_filtered
                                                        )
                                                    );

                                java_resolution_analysis[tfm].TryAdd
                                                                (
                                                                    maven_artifact,
                                                                    error_type_w_lines                                                                        
                                                                );

                                return;
                            }                   
                        );

            java_resolution_analysis.OrderBy(kvp => kvp.Key);
            foreach(var kvp in java_resolution_analysis)
            {
                kvp.Value.OrderBy(kvp2 => kvp2.Key);
                foreach(var kvp2 in kvp.Value)
                {
                    kvp2.Value.OrderBy(kvp3 => kvp3.Key);
                    foreach(var kvp3 in kvp.Value)
                    {
                        kvp3.Value.OrderBy(kvp4 => kvp4.Value);                        
                    }
                }
            }

            StringBuilder sb_java_resolution_analysis = new StringBuilder();
            StringBuilder sb_java_resolution_analysis_types_only = new StringBuilder();
            StringBuilder sb_java_resolution_analysis_types_only_filtered = new StringBuilder();

            foreach(var kvp_tfm in java_resolution_analysis)
            {
                sb_java_resolution_analysis
                                    .AppendLine($"TFM: {kvp_tfm.Key}");
                sb_java_resolution_analysis_types_only
                                    .AppendLine($"TFM: {kvp_tfm.Key}");
                sb_java_resolution_analysis_types_only_filtered
                                    .AppendLine($"TFM: {kvp_tfm.Key}");

                Information($"TFM: {kvp_tfm.Key}");

                foreach(var kvp_maven_artifact in kvp_tfm.Value)
                {                    
                    sb_java_resolution_analysis
                                    .AppendLine($"      Artifact: {kvp_maven_artifact.Key}");
                    sb_java_resolution_analysis_types_only
                                    .AppendLine($"      Artifact: {kvp_maven_artifact.Key}");
                    sb_java_resolution_analysis_types_only_filtered
                                    .AppendLine($"      Artifact: {kvp_maven_artifact.Key}");
                    
                    Information($"      Artifact: {kvp_maven_artifact.Key}");

                    foreach(var kvp_errors in kvp_maven_artifact.Value)
                    {
                        sb_java_resolution_analysis
                                        .AppendLine($"          Error: {kvp_errors.Key}");
                        sb_java_resolution_analysis_types_only
                                        .AppendLine($"          Error: {kvp_errors.Key}");
                        sb_java_resolution_analysis_types_only_filtered
                                        .AppendLine($"          Error: {kvp_errors.Key}");
                        
                        Information($"          Error: {kvp_errors.Key}");

                        foreach(string line in kvp_errors.Value.lines)
                        {                    
                            sb_java_resolution_analysis
                                            .AppendLine($"                  line : {line}");
                            
                            Information($"                  : {line}");
                        }
                        foreach(KeyValuePair<string, int> type_occurence in kvp_errors.Value.types)
                        {
                            sb_java_resolution_analysis
                                            .AppendLine($"                  type : {type_occurence.Key}");
                            sb_java_resolution_analysis
                                            .AppendLine($"                      occurence : {type_occurence.Value}");
                            sb_java_resolution_analysis_types_only
                                            .AppendLine($"                  type : {type_occurence.Key}");
                            sb_java_resolution_analysis_types_only
                                            .AppendLine($"                      occurence : {type_occurence.Value}");
                            sb_java_resolution_analysis_types_only_filtered
                                            .AppendLine($"                  type : {type_occurence.Key}");

                            sb_java_resolution_analysis_types_only_filtered
                                            .AppendLine($"                      occurence : {type_occurence.Value}");

                            Information($"                  : {type_occurence.Key} {type_occurence.Value}");
                        }
                    }
                }
            }

            System.IO.File.WriteAllText
                                    (
                                        System.IO.Path.Combine
                                                            (
                                                                "output", 
                                                                "java-resolution-analysis",
                                                                "errors-types.txt"
                                                            ), 
                                        sb_java_resolution_analysis.ToString()
                                    );
            System.IO.File.WriteAllText
                                    (
                                        System.IO.Path.Combine
                                                            (
                                                                "output", 
                                                                "java-resolution-analysis",
                                                                "types.txt"
                                                            ), 
                                        sb_java_resolution_analysis_types_only.ToString()
                                    );
            System.IO.File.WriteAllText
                                    (
                                        System.IO.Path.Combine
                                                            (
                                                                "output", 
                                                                "java-resolution-analysis",
                                                                "types-filtered.txt"
                                                            ), 
                                        sb_java_resolution_analysis_types_only_filtered.ToString()
                                    );

            return;
        }
    );


Task ("Default")
    .IsDependentOn ("read-analysis-files")
    ;

if (System.IO.File.Exists(file_spell_errors))
{
    string separator = System.Environment.NewLine + "\t" + "\t";
    string msg = "Spell Errors:" + System.Environment.NewLine + "\t" + "\t"
                    + string.Join(separator, System.IO.File.ReadAllLines(file_spell_errors));
    throw new Exception(msg);
}

RunTarget (TARGET);