using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;

namespace ScadaLink.DeploymentManager.Tests;

/// <summary>
/// DeploymentManager-008: DeploymentManagerOptions must be bound to the
/// "ScadaLink:DeploymentManager" configuration section, consistent with the
/// Options-pattern convention used by the other components.
/// </summary>
public class ServiceCollectionExtensionsTests
{
    [Fact]
    public void AddDeploymentManager_WithConfiguration_BindsDeploymentManagerOptions()
    {
        var configuration = new ConfigurationBuilder()
            .AddInMemoryCollection(new Dictionary<string, string?>
            {
                ["ScadaLink:DeploymentManager:OperationLockTimeout"] = "00:00:09",
                ["ScadaLink:DeploymentManager:ArtifactDeploymentTimeoutPerSite"] = "00:03:00"
            })
            .Build();

        var services = new ServiceCollection();
        services.AddDeploymentManager(configuration);

        using var provider = services.BuildServiceProvider();
        var options = provider.GetRequiredService<IOptions<DeploymentManagerOptions>>().Value;

        Assert.Equal(TimeSpan.FromSeconds(9), options.OperationLockTimeout);
        Assert.Equal(TimeSpan.FromMinutes(3), options.ArtifactDeploymentTimeoutPerSite);
    }

    [Fact]
    public void AddDeploymentManager_WithConfiguration_MissingSection_UsesDefaults()
    {
        var configuration = new ConfigurationBuilder().Build();

        var services = new ServiceCollection();
        services.AddDeploymentManager(configuration);

        using var provider = services.BuildServiceProvider();
        var options = provider.GetRequiredService<IOptions<DeploymentManagerOptions>>().Value;

        // No section present -> the option-class defaults are retained.
        Assert.Equal(TimeSpan.FromSeconds(5), options.OperationLockTimeout);
    }
}