using Xunit;
using OpenHarbor.MCP.Core.Models;

namespace OpenHarbor.MCP.Core.Tests.Models;

/// <summary>
/// Unit tests for ServerInfo model following TDD approach.
/// Tests server metadata representation.
/// </summary>
public class ServerInfoTests
{
    [Fact]
    public void ServerInfo_WithValidData_CreatesSuccessfully()
    {
        // Arrange & Act
        var serverInfo = new ServerInfo
        {
            Id = "test-server",
            Name = "Test Server",
            IsHealthy = true,
            LastHealthCheck = DateTime.UtcNow,
            ResponseTime = TimeSpan.FromMilliseconds(50)
        };

        // Assert
        Assert.Equal("test-server", serverInfo.Id);
        Assert.Equal("Test Server", serverInfo.Name);
        Assert.True(serverInfo.IsHealthy);
        Assert.NotNull(serverInfo.LastHealthCheck);
        Assert.Equal(50, serverInfo.ResponseTime?.TotalMilliseconds);
    }

    [Fact]
    public void ServerInfo_DefaultState_IsNotHealthy()
    {
        // Arrange & Act
        var serverInfo = new ServerInfo();

        // Assert
        Assert.False(serverInfo.IsHealthy);
        Assert.Null(serverInfo.LastHealthCheck);
    }

    [Fact]
    public void ServerInfo_WithMetadata_StoresAdditionalData()
    {
        // Arrange
        var metadata = new Dictionary<string, string>
        {
            { "version", "1.0.0" },
            { "region", "us-east" }
        };

        // Act
        var serverInfo = new ServerInfo
        {
            Id = "server-1",
            Metadata = metadata
        };

        // Assert
        Assert.NotNull(serverInfo.Metadata);
        Assert.Equal("1.0.0", serverInfo.Metadata["version"]);
        Assert.Equal("us-east", serverInfo.Metadata["region"]);
    }
}