using System.Net;
using System.Net.Http.Json;
using Microsoft.AspNetCore.Mvc.Testing;
using Xunit;

namespace StellaOps.Signals.Tests;

public class SignalsApiTests : IClassFixture<WebApplicationFactory<Program>>
{
    private readonly WebApplicationFactory<Program> factory;

    public SignalsApiTests(WebApplicationFactory<Program> factory)
    {
        this.factory = factory;
    }

    [Fact]
    public async Task Healthz_ReturnsOk()
    {
        var client = factory.CreateClient();
        var response = await client.GetAsync("/healthz");

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
    }

    [Fact]
    public async Task Readyz_ReturnsOk()
    {
        var client = factory.CreateClient();
        var response = await client.GetAsync("/readyz");

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var payload = await response.Content.ReadFromJsonAsync<Dictionary<string, string>>();
        Assert.NotNull(payload);
        Assert.Equal("ready", payload!["status"]);
    }

    [Fact]
    public async Task Ping_WithoutScopeHeader_ReturnsUnauthorized()
    {
        var client = factory.CreateClient();
        var response = await client.GetAsync("/signals/ping");

        Assert.Equal(HttpStatusCode.Unauthorized, response.StatusCode);
    }

    [Fact]
    public async Task Ping_WithMissingScope_ReturnsForbidden()
    {
        var client = factory.CreateClient();
        var request = new HttpRequestMessage(HttpMethod.Get, "/signals/ping");
        request.Headers.Add("X-Scopes", "signals:write");

        var response = await client.SendAsync(request);

        Assert.Equal(HttpStatusCode.Forbidden, response.StatusCode);
    }

    [Fact]
    public async Task Ping_WithReadScope_ReturnsNoContent()
    {
        var client = factory.CreateClient();
        var request = new HttpRequestMessage(HttpMethod.Get, "/signals/ping");
        request.Headers.Add("X-Scopes", "signals:read");

        var response = await client.SendAsync(request);

        Assert.Equal(HttpStatusCode.NoContent, response.StatusCode);
    }
}