using System.Net;
using System.Text;

namespace SatelliteProvider.IntegrationTests;

public static class StubAndErrorContractTests
{
    public static async Task RunAll(HttpClient httpClient)
    {
        RouteTestHelpers.PrintTestHeader("Test: Stub endpoints + error contracts (AZ-356 / AZ-353)");

        await StubMgrs_Returns501(httpClient);
        await StubUpload_Returns501(httpClient);
        await CreateRoute_InvalidPayload_Returns400_AZ353_AC3(httpClient);

        Console.WriteLine("✓ Stub + error-contract tests: PASSED");
    }

    private static async Task StubMgrs_Returns501(HttpClient httpClient)
    {
        Console.WriteLine();
        Console.WriteLine("AZ-356 AC-1: GET /api/satellite/tiles/mgrs returns 501");

        var response = await httpClient.GetAsync("/api/satellite/tiles/mgrs?mgrs=33TWN1234567890&squareSideMeters=100");
        var status = (int)response.StatusCode;

        if (status != 501)
        {
            throw new Exception($"Expected 501 from /api/satellite/tiles/mgrs, got {status}");
        }

        var body = await response.Content.ReadAsStringAsync();
        if (!body.Contains("Not implemented", StringComparison.OrdinalIgnoreCase))
        {
            throw new Exception($"Expected ProblemDetails body containing 'Not implemented', got: {body}");
        }

        Console.WriteLine($"  ✓ /api/satellite/tiles/mgrs returns HTTP 501 with ProblemDetails");
    }

    private static async Task StubUpload_Returns501(HttpClient httpClient)
    {
        Console.WriteLine();
        Console.WriteLine("AZ-356 AC-1: POST /api/satellite/upload returns 501");

        using var multipart = new MultipartFormDataContent
        {
            { new StringContent(DateTime.UtcNow.ToString("o")), "Timestamp" },
            { new StringContent("47.461747"), "Lat" },
            { new StringContent("37.647063"), "Lon" },
            { new StringContent("100"), "Height" },
            { new StringContent("35"), "FocalLength" },
            { new StringContent("23"), "SensorWidth" },
            { new StringContent("15.6"), "SensorHeight" },
        };
        var fakeImage = new ByteArrayContent(new byte[] { 0xFF, 0xD8, 0xFF, 0xD9 });
        fakeImage.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("image/jpeg");
        multipart.Add(fakeImage, "Image", "test.jpg");

        var response = await httpClient.PostAsync("/api/satellite/upload", multipart);
        var status = (int)response.StatusCode;

        if (status != 501)
        {
            throw new Exception($"Expected 501 from /api/satellite/upload, got {status}");
        }

        Console.WriteLine($"  ✓ /api/satellite/upload returns HTTP 501");
    }

    private static async Task CreateRoute_InvalidPayload_Returns400_AZ353_AC3(HttpClient httpClient)
    {
        Console.WriteLine();
        Console.WriteLine("AZ-353 AC-3: POST /api/satellite/route with <2 points returns 400 (typed ArgumentException path preserved)");

        var routeId = Guid.NewGuid();
        var body = $"{{\"id\":\"{routeId}\",\"name\":\"too-short\",\"description\":\"\",\"regionSizeMeters\":500,\"zoomLevel\":18,\"requestMaps\":false,\"points\":[{{\"latitude\":47.46,\"longitude\":37.64}}]}}";
        var content = new StringContent(body, Encoding.UTF8, "application/json");
        var response = await httpClient.PostAsync("/api/satellite/route", content);
        var status = (int)response.StatusCode;

        if (status != 400)
        {
            throw new Exception($"Expected 400 for 1-point route (typed ArgumentException), got {status}");
        }

        Console.WriteLine($"  ✓ 1-point route rejected with HTTP 400 (typed handling preserved)");
    }
}