using Microsoft.Extensions.DependencyInjection;
using ZB.MOM.WW.SPHistorianClient;

namespace ZB.MOM.WW.SPHistorianClient.Tests;

public class DependencyInjectionTests
{
    [Fact]
    public async Task AddZbSpHistorianClient_resolves_client_and_options()
    {
        var services = new ServiceCollection();
        var options = new HistorianClientOptions { Host = "localhost" };

        services.AddZbSpHistorianClient(options);

        // HistorianClient is IAsyncDisposable-only, so the container must be disposed
        // asynchronously (a synchronous `using` throws InvalidOperationException).
        await using var sp = services.BuildServiceProvider();
        Assert.Same(options, sp.GetRequiredService<HistorianClientOptions>());
        Assert.NotNull(sp.GetRequiredService<HistorianClient>());
    }

    [Fact]
    public void AddZbSpHistorianClient_throws_when_host_missing()
    {
        var services = new ServiceCollection();
        var options = new HistorianClientOptions { Host = "" };

        Assert.Throws<ArgumentException>(() => services.AddZbSpHistorianClient(options));
    }

    [Fact]
    public void AddZbSpHistorianClient_throws_on_null_options()
    {
        var services = new ServiceCollection();
        Assert.Throws<ArgumentNullException>(() => services.AddZbSpHistorianClient(null!));
    }
}