using FluentAssertions;
using Microsoft.Extensions.Configuration;
using SchotzIadKmTracker.Api.Configuration;

namespace SchotzIadKmTracker.Tests.Auth;

/// <summary>
/// Tests d'exemple vérifiant la liaison des options d'authentification depuis une configuration
/// in-memory, ainsi que les valeurs par défaut attendues (feature authentification, tâche 2.2).
/// </summary>
public class OptionsBindingTests
{
    private static IConfiguration ConstruireConfiguration(IEnumerable<KeyValuePair<string, string?>> valeurs)
        => new ConfigurationBuilder()
            .AddInMemoryCollection(valeurs)
            .Build();

    // Validates: Requirements 5.5
    [Fact]
    public void JwtOptions_se_lie_depuis_la_configuration_et_applique_les_defauts()
    {
        // Seul SecretKey est fourni : Issuer/Audience/ExpirationMinutes doivent prendre leurs défauts.
        var config = ConstruireConfiguration(new Dictionary<string, string?>
        {
            ["Jwt:SecretKey"] = "clef-secrete-de-test-suffisamment-longue-0123456789"
        });

        var options = new JwtOptions();
        config.GetSection(JwtOptions.SectionName).Bind(options);

        options.SecretKey.Should().Be("clef-secrete-de-test-suffisamment-longue-0123456789");
        options.Issuer.Should().Be("SchotzIadKmTracker");
        options.Audience.Should().Be("SchotzIadKmTracker");
        options.ExpirationMinutes.Should().Be(720);
    }

    [Fact]
    public void JwtOptions_prend_les_valeurs_fournies_par_la_configuration()
    {
        var config = ConstruireConfiguration(new Dictionary<string, string?>
        {
            ["Jwt:SecretKey"] = "une-autre-clef-de-test-tres-longue-abcdefghijklmnop",
            ["Jwt:Issuer"] = "MonIssuer",
            ["Jwt:Audience"] = "MonAudience",
            ["Jwt:ExpirationMinutes"] = "60"
        });

        var options = new JwtOptions();
        config.GetSection(JwtOptions.SectionName).Bind(options);

        options.Issuer.Should().Be("MonIssuer");
        options.Audience.Should().Be("MonAudience");
        options.ExpirationMinutes.Should().Be(60);
    }

    // Validates: Requirements 6.3
    [Fact]
    public void AuthOptions_se_lie_depuis_la_configuration_et_applique_les_defauts()
    {
        // Configuration vide : les défauts doivent s'appliquer.
        var config = ConstruireConfiguration(new Dictionary<string, string?>());

        var options = new AuthOptions();
        config.GetSection(AuthOptions.SectionName).Bind(options);

        options.ResetTokenLifetimeMinutes.Should().Be(60);
        options.FrontendBaseUrl.Should().Be("http://localhost:8080");
    }

    // Validates: Requirements 6.7
    [Fact]
    public void SmtpOptions_se_lie_depuis_la_configuration_et_applique_les_defauts()
    {
        var config = ConstruireConfiguration(new Dictionary<string, string?>());

        var options = new SmtpOptions();
        config.GetSection(SmtpOptions.SectionName).Bind(options);

        options.Host.Should().BeEmpty();
        options.Port.Should().Be(587);
        options.User.Should().BeEmpty();
        options.Password.Should().BeEmpty();
        options.From.Should().BeEmpty();
    }
}