using System.Net;
using System.Text.Json;
using Asp.Versioning;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.TestHost;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace Store.Users.Tests;

public sealed class VersionedOpenApiTests
{
    [Fact]
    public async Task MajorAndMinorVersions_GenerateSeparateDocuments()
    {
        var builder = WebApplication.CreateBuilder();
        builder.WebHost.UseTestServer();
        builder.Logging.ClearProviders();
        builder.Services.AddControllers().AddApplicationPart(typeof(OpenApiMinorVersionTestController).Assembly);
        builder.Services.AddApiVersioning(options =>
        {
            options.DefaultApiVersion = new ApiVersion(1, 0);
            options.AssumeDefaultVersionWhenUnspecified = true;
            options.ApiVersionReader = new UrlSegmentApiVersionReader();
        }).AddMvc().AddApiExplorer(options =>
        {
            options.GroupNameFormat = "'v'VVV";
            options.SubstituteApiVersionInUrl = true;
        }).AddOpenApi();

        await using var app = builder.Build();
        app.MapControllers();
        app.MapOpenApi().WithDocumentPerVersion();
        await app.StartAsync();
        using var client = app.GetTestClient();

        var groups = app.DescribeApiVersions().Select(version => version.GroupName).ToArray();
        Assert.Contains("v1", groups);
        Assert.Contains("v1.1", groups);
        Assert.Equal(groups.Length, groups.Distinct(StringComparer.OrdinalIgnoreCase).Count());

        foreach (var group in new[] { "v1", "v1.1" })
        {
            using var response = await client.GetAsync($"/openapi/{group}.json");
            Assert.Equal(HttpStatusCode.OK, response.StatusCode);
            using var document = JsonDocument.Parse(await response.Content.ReadAsStringAsync());
            var paths = document.RootElement.GetProperty("paths");
            var ownPath = group == "v1" ? "/default-get-tests/Read" : "/openapi-minor-tests/Read";
            Assert.True(paths.TryGetProperty(ownPath, out _));
        }
    }
}

[ApiController]
[ApiVersion("1.1")]
[Route("openapi-minor-tests/[action]")]
public sealed class OpenApiMinorVersionTestController : ControllerBase
{
    [HttpPost]
    public string Read()
    {
        return "ok";
    }
}