using System;
using System.IO;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using ReC.Application;
using ReC.Application.Common.Options;
using ReC.Infrastructure;

namespace ReC.Tests.Application;

public abstract class RecApplicationTestBase : IDisposable
{
    protected RecApplicationTestBase()
    {
        Configuration = BuildConfiguration();
        ServiceProvider = BuildServiceProvider(Configuration);
    }

    protected IConfiguration Configuration { get; }

    protected IServiceProvider ServiceProvider { get; }

    private static IConfiguration BuildConfiguration()
    {
        var appSettingsPath = LocateApiAppSettings();

        return new ConfigurationBuilder()
            .AddJsonFile(appSettingsPath, optional: false, reloadOnChange: false)
            .Build();
    }

    private static IServiceProvider BuildServiceProvider(IConfiguration configuration)
    {
        var services = new ServiceCollection();

        services.AddSingleton(configuration);

        services.AddRecServices(options =>
        {
            options.LuckyPennySoftwareLicenseKey = configuration["LuckyPennySoftwareLicenseKey"];
            options.ConfigureRecActions(configuration.GetSection("RecAction"));
            options.ConfigureSqlException(configuration.GetSection("SqlException"));
        });

        services.AddRecInfrastructure(opt =>
        {
            opt.ConfigureDbContext((_, builder) => builder.UseSqlServer(configuration.GetConnectionString("Default")));
        });

        return services.BuildServiceProvider();
    }

    private static string LocateApiAppSettings()
    {
        var current = new DirectoryInfo(AppContext.BaseDirectory);
        while (current is not null)
        {
            var candidate = Path.Combine(current.FullName, "src", "ReC.API", "appsettings.json");
            if (File.Exists(candidate))
                return candidate;

            current = current.Parent;
        }

        throw new FileNotFoundException("Could not locate src/ReC.API/appsettings.json from test base directory.");
    }

    public void Dispose()
    {
        if (ServiceProvider is IDisposable disposable)
            disposable.Dispose();
    }
}