using System.Text;
using IdentityShroud.Core.Security;
using Microsoft.Extensions.Configuration;

namespace IdentityShroud.Core.Tests.Security;

public class ConfigurationSecretProviderTests
{
    private static IConfiguration BuildConfigFromJson(string json)
    {
        // Convert the JSON string into a stream that the config builder can read.
        var jsonBytes = Encoding.UTF8.GetBytes(json);
        using var stream = new MemoryStream(jsonBytes);

        // Build the configuration just like the real app does, but from the stream.
        var config = new ConfigurationBuilder()
            .AddJsonStream(stream)   // <-- reads from the in‑memory JSON
            .Build();

        return config;
    }

    [Fact]
    public void Test()
    {
        string jsonConfig = """
            {
                "secrets": {
                    "master": [
                        {
                            "Id": "5676d159-5495-4945-aa84-59ee694aa8a2",
                            "Active": true,
                            "Algorithm": "AES",
                            "Key": "yoQ4W7EaNjo7s3FBYkWo5BLyX1BnLyWd7BlSaDIrkzo="
                        },
                        {
                            "Id": "b82489e7-a05a-4d64-b9a5-58d2f2c0dc39",
                            "Active": false,
                            "Algorithm": "AES",
                            "Key": "YSWK6vTJXCJOGLpCo+TtZ6anKNzvA1VT2xXLHbmq4M0="
                        }
                    ]    
                }
            }
            """;
        

        ConfigurationSecretProvider sut = new(BuildConfigFromJson(jsonConfig));

        // act
        var keys = sut.GetKeys("master");

        // verify
        Assert.Equal(2, keys.Length);
        var active = keys.Single(k => k.Active);
        Assert.Equal(new Guid("5676d159-5495-4945-aa84-59ee694aa8a2"), active.Id.Id);
        Assert.Equal("AES", active.Algorithm);
        Assert.Equal(Convert.FromBase64String("yoQ4W7EaNjo7s3FBYkWo5BLyX1BnLyWd7BlSaDIrkzo="), active.Key);

        var inactive = keys.Single(k => !k.Active);
        Assert.Equal(new Guid("b82489e7-a05a-4d64-b9a5-58d2f2c0dc39"), inactive.Id.Id);
    }
}