using Application.Services.Database;
using Application.Services.Database.MongoDB;
using Application.Services.HashingAlgorithms;
using Infrastructure.Data;
using Infrastructure.Services.HashingAlgorithms;
using Infrastructure.Services.MongoDB;
using Infrastructure.Services.PostgreSQL;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using MongoDB.Driver;

namespace Infrastructure;

public static class DependencyInjection
{
    public static IServiceCollection AddInfrastructureServices(this IServiceCollection services,
        IConfiguration configuration)
    {
        services.AddDbContext<HealthcareManagerDatabase>(options =>
            options.UseNpgsql(configuration.GetConnectionString("HealthcareManagerDatabase")));

        //PostgreSQL Services
        services.AddScoped<IPatientRepository, PatientRepository>();
        services.AddScoped<IDoctorRepository, DoctorRepository>();
        services.AddScoped<IMedicalHistoryRepository, MedicalHistoryRepository>();

        // MongoDB Service
        var mongoDbConnectionString = configuration.GetValue<string>("ConnectionStrings:MongoDBConnection");

        // Extract MongoDB database names
        var healthcareManagerDatabaseName = configuration.GetValue<string>("HealthcareManagerDatabase:Name");
        var medicalHistoryCollectionName = configuration.GetValue<string>("HealthcareManagerDatabase:MedicalRecordCollectionName");
        var chatCollectionName = configuration.GetValue<string>("HealthcareManagerDatabase:ChatCollectionName");

        // Register MongoDB services
        services.AddSingleton<IMedicalHistoryMongoDbService>(serviceProvider =>
            new MedicalHistoryMongoDbService(mongoDbConnectionString, healthcareManagerDatabaseName, medicalHistoryCollectionName));

        services.AddSingleton<IChatMongoDbService>(serviceProvider =>
            new ChatMongoDbService(mongoDbConnectionString, healthcareManagerDatabaseName, chatCollectionName));


        // Other Services
        services.AddScoped<IHashingAlgorithms, HashingAlgorithms>();
        // services.AddScoped<IEmailService, EmailService>();

        return services;
    }
    
    private static string ExtractMongoDbDatabaseName(string connectionString)
    {
        var connectionStringBuilder = new MongoUrlBuilder(connectionString);
        return connectionStringBuilder.DatabaseName;
    }
}