using EnvelopeGenerator.Application.Contracts.Repositories;
using EnvelopeGenerator.Infrastructure.Repositories;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.EntityFrameworkCore;

namespace EnvelopeGenerator.Infrastructure;

public static class DIExtensions
{
    /// <summary>
    /// Registers the required repositories for the Envelope Generator service to the given <see cref="IServiceCollection"/>.
    /// This method adds the repositories for various envelope-related entities, such as configuration, document receivers, envelopes, and users,
    /// as scoped services to the dependency injection container. Optionally, it can also configure the <see cref="EGDbContext"/> 
    /// with the provided database context options if specified.
    /// </summary>
    /// <param name="services">The <see cref="IServiceCollection"/> to which the services are added.</param>
    /// <param name="dbContextOptions">An optional action to configure the <see cref="DbContextOptionsBuilder"/> for the <see cref="EGDbContext"/>. 
    /// If not provided, the <see cref="EGDbContext"/> will not be configured.</param>
    /// <returns>The updated <see cref="IServiceCollection"/> with the added repository services.</returns>
    /// <remarks>
    /// This method ensures that the repositories are registered as scoped services, meaning that a new instance of each repository 
    /// will be created per HTTP request (or per scope) within the dependency injection container.
    /// </remarks>
    public static IServiceCollection AddEnvelopeGeneratorRepositories(this IServiceCollection services, Action<DbContextOptionsBuilder>? dbContextOptions = null)
    {
        if(dbContextOptions is not null)
            services.AddDbContext<EGDbContext>(dbContextOptions);

        services.TryAddScoped<IConfigRepository, ConfigRepository>();
        services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
        services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
        services.TryAddScoped<IConfigRepository, ConfigRepository>();
        services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
        services.TryAddScoped<IDocumentStatusRepository, DocumentStatusRepository>();
        services.TryAddScoped<IEmailTemplateRepository, EmailTemplateRepository>();
        services.TryAddScoped<IEnvelopeRepository, EnvelopeRepository>();
        services.TryAddScoped<IEnvelopeCertificateRepository, EnvelopeCertificateRepository>();
        services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
        services.TryAddScoped<IEnvelopeHistoryRepository, EnvelopeHistoryRepository>();
        services.TryAddScoped<IEnvelopeReceiverRepository, EnvelopeReceiverRepository>();
        services.TryAddScoped<IEnvelopeTypeRepository, EnvelopeTypeRepository>();
        services.TryAddScoped<IReceiverRepository, ReceiverRepository>();
        services.TryAddScoped<IUserReceiverRepository, UserReceiverRepository>();
        services.TryAddScoped<IEnvelopeReceiverReadOnlyRepository, EnvelopeReceiverReadOnlyRepository>();

        return services;
    }
}