using Grpc.Core;
using Grpc.Net.Client;
using Svrnty.CQRS.Grpc.Sample.Grpc;

Console.WriteLine("=== gRPC Client Validation Test ===");
Console.WriteLine();

// Create a gRPC channel
using var channel = GrpcChannel.ForAddress("http://localhost:5000");

// Create the gRPC client
var client = new CommandService.CommandServiceClient(channel);

// Test 1: Valid request
Console.WriteLine("Test 1: Valid AddUser request...");
var validRequest = new AddUserCommandRequest
{
    Name = "John Doe",
    Email = "john.doe@example.com",
    Age = 30
};

try
{
    var response = await client.AddUserAsync(validRequest);
    Console.WriteLine($"✓ Success! User added with ID: {response.Result}");
}
catch (RpcException ex)
{
    Console.WriteLine($"✗ Unexpected error: {ex.Status.Detail}");
}

Console.WriteLine();

// Test 2: Invalid email (empty)
Console.WriteLine("Test 2: Invalid email (empty)...");
var invalidEmailRequest = new AddUserCommandRequest
{
    Name = "Jane Doe",
    Email = "",
    Age = 25
};

try
{
    var response = await client.AddUserAsync(invalidEmailRequest);
    Console.WriteLine($"✗ Unexpected success! Validation should have failed.");
}
catch (RpcException ex)
{
    Console.WriteLine($"✓ Validation caught! Status: {ex.StatusCode}");
    Console.WriteLine($"  Message: {ex.Status.Detail}");
}

Console.WriteLine();

// Test 3: Invalid email format
Console.WriteLine("Test 3: Invalid email format...");
var badEmailRequest = new AddUserCommandRequest
{
    Name = "Bob Smith",
    Email = "not-an-email",
    Age = 40
};

try
{
    var response = await client.AddUserAsync(badEmailRequest);
    Console.WriteLine($"✗ Unexpected success! Validation should have failed.");
}
catch (RpcException ex)
{
    Console.WriteLine($"✓ Validation caught! Status: {ex.StatusCode}");
    Console.WriteLine($"  Message: {ex.Status.Detail}");
}

Console.WriteLine();

// Test 4: Invalid age (0)
Console.WriteLine("Test 4: Invalid age (0)...");
var invalidAgeRequest = new AddUserCommandRequest
{
    Name = "Alice Brown",
    Email = "alice@example.com",
    Age = 0
};

try
{
    var response = await client.AddUserAsync(invalidAgeRequest);
    Console.WriteLine($"✗ Unexpected success! Validation should have failed.");
}
catch (RpcException ex)
{
    Console.WriteLine($"✓ Validation caught! Status: {ex.StatusCode}");
    Console.WriteLine($"  Message: {ex.Status.Detail}");
}

Console.WriteLine();
Console.WriteLine("All tests completed!");