using System.Net.Http.Json;
using System.Text.Json;

public static class AuthHelper
{
    /// <summary>
    /// Logs in as the given user and returns an HttpClient with the JWT
    /// Authorization header pre-configured. Login also returns a refresh token;
    /// integration tests use the access token only.
    /// </summary>
    public static async Task<HttpClient> LoginAsync(
        ApiFixture fixture, string username = "entry1", string password = "password")
    {
        var client = fixture.CreateClient();

        var loginResp = await client.PostAsJsonAsync("/api/v1/auth/login",
            new { username, password });

        loginResp.EnsureSuccessStatusCode();

        var body = await loginResp.Content.ReadFromJsonAsync<JsonDocument>();
        var token = body!.RootElement.GetProperty("data").GetProperty("token").GetString()!;

        client.DefaultRequestHeaders.Authorization =
            new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);

        return client;
    }
}