using System.Text.Json;
using System.Text.Json.Serialization;

namespace File_Watcher.Models.Binder;

public class AppSettings
{

    public string? BuildNumber { get; set; }
    public string[]? ConfigurationDirectoryNames { get; set; }
    public int? ConfigurationSpecialFolder { get; set; }
    public string? ConfigurationFileName { get; set; }
    public string? Company { get; set; }
    public string? GitCommitSeven { get; set; }
    public string? Helper { get; set; }
    public int? MillisecondsDelay { get; set; }
    public string? WatchDirectory { get; set; }

    public override string ToString()
    {
        string result = JsonSerializer.Serialize(this, BinderAppSettingsSourceGenerationContext.Default.AppSettings);
        return result;
    }

    private static void PreVerify(IConfigurationRoot configurationRoot, AppSettings? appSettings)
    {
        if (appSettings?.BuildNumber is null)
        {
            List<string> paths = [];
            foreach (IConfigurationProvider configurationProvider in configurationRoot.Providers)
            {
                if (configurationProvider is not Microsoft.Extensions.Configuration.Json.JsonConfigurationProvider jsonConfigurationProvider)
                    continue;
                if (jsonConfigurationProvider.Source.FileProvider is not Microsoft.Extensions.FileProviders.PhysicalFileProvider physicalFileProvider)
                    continue;
                paths.Add(physicalFileProvider.Root);
            }
            throw new NotSupportedException($"Not found!{Environment.NewLine}{string.Join(Environment.NewLine, paths.Distinct())}");
        }
    }

    private static void Verify(AppSettings _)
    {
    }

    private static Models.AppSettings Get(AppSettings? appSettings,
                                          DriveConfiguration driveConfiguration,
                                          CompassConfiguration compassConfiguration,
                                          EAFLogConfiguration eafLogConfiguration,
                                          EAFProgramDataConfiguration eafProgramDataConfiguration,
                                          EDADatabaseConfiguration edaDatabaseConfiguration,
                                          NugetConfiguration nugetConfiguration,
                                          MetrologyConfiguration metrologyConfiguration,
                                          SerialConfiguration serialConfiguration,
                                          StratusConfiguration stratusConfiguration,
                                          TransmissionControlProtocolConfiguration transmissionControlProtocolConfiguration,
                                          WaferCounterConfiguration waferCounterConfiguration)
    {
        Models.AppSettings result;
        if (appSettings is null) throw new NullReferenceException(nameof(appSettings));
        if (appSettings.BuildNumber is null) throw new NullReferenceException(nameof(BuildNumber));
        if (appSettings.Company is null) throw new NullReferenceException(nameof(Company));
        if (appSettings.GitCommitSeven is null) throw new NullReferenceException(nameof(GitCommitSeven));
        if (appSettings.Helper is null) throw new NullReferenceException(nameof(Helper));
        if (appSettings.MillisecondsDelay is null) throw new NullReferenceException(nameof(MillisecondsDelay));
        if (appSettings.WatchDirectory is null) throw new NullReferenceException(nameof(WatchDirectory));
        Verify(appSettings);
        result = new(eafLogConfiguration,
                     eafProgramDataConfiguration,
                     edaDatabaseConfiguration,
                     compassConfiguration,
                     driveConfiguration,
                     nugetConfiguration,
                     metrologyConfiguration,
                     serialConfiguration,
                     stratusConfiguration,
                     transmissionControlProtocolConfiguration,
                     waferCounterConfiguration,
                     appSettings.BuildNumber,
                     appSettings.Company,
                     appSettings.GitCommitSeven,
                     appSettings.Helper,
                     appSettings.MillisecondsDelay.Value,
                     appSettings.WatchDirectory);
        return result;
    }

    private static string? GetJson(AppSettings? appSettings)
    {
        string? result;
        if (appSettings is null || appSettings.ConfigurationFileName is null)
            result = null;
        else
        {
            string jsonFile = Path.Combine(AppContext.BaseDirectory, appSettings.ConfigurationFileName);
            if (File.Exists(jsonFile))
                result = File.ReadAllText(jsonFile);
            else
            {
                result = null;
                string applicationData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
                List<string> collection = [applicationData];
                if (appSettings?.ConfigurationDirectoryNames is not null)
                    collection.AddRange(appSettings.ConfigurationDirectoryNames);
                if (appSettings?.ConfigurationFileName is not null)
                    collection.Add(appSettings.ConfigurationFileName);
                jsonFile = Path.Combine(collection.ToArray());
            }
            if (string.IsNullOrEmpty(result) && File.Exists(jsonFile))
                result = File.ReadAllText(jsonFile);
        }
        return result;
    }

    public static Models.AppSettings Get(IConfigurationRoot configurationRoot)
    {
        Models.AppSettings result;
#pragma warning disable IL3050, IL2026
        AppSettings? appSettings = configurationRoot.Get<AppSettings>();
#pragma warning restore IL3050, IL2026
        PreVerify(configurationRoot, appSettings);
        string? json = GetJson(appSettings);
        Models.AppSettings? modelsAppSettings = (string.IsNullOrEmpty(json) ? null : modelsAppSettings = JsonSerializer.Deserialize(json, AppSettingsSourceGenerationContext.Default.AppSettings)) ??
            throw new NullReferenceException(nameof(Models.AppSettings));
        result = Get(appSettings,
                     modelsAppSettings.DriveConfiguration,
                     modelsAppSettings.CompassConfiguration,
                     modelsAppSettings.EAFLogConfiguration,
                     modelsAppSettings.EAFProgramDataConfiguration,
                     modelsAppSettings.EDADatabaseConfiguration,
                     modelsAppSettings.NugetConfiguration,
                     modelsAppSettings.MetrologyConfiguration,
                     modelsAppSettings.SerialConfiguration,
                     modelsAppSettings.StratusConfiguration,
                     modelsAppSettings.TransmissionControlProtocolConfiguration,
                     modelsAppSettings.WaferCounterConfiguration);
        return result;
    }

}

[JsonSourceGenerationOptions(WriteIndented = true)]
[JsonSerializable(typeof(AppSettings))]
internal partial class BinderAppSettingsSourceGenerationContext : JsonSerializerContext
{
}