using System.Net;
using System.Net.Http.Json;
using BigRegister.Api.Contracts;
using Microsoft.AspNetCore.Mvc.Testing;

namespace BigRegister.Tests;

/// <summary>
/// The stamdata maintenance reads (ADR-0004): admin-only, generic (schema + rows), and the
/// valid-time peildatum filter. The editor consumes these; the edit itself lands as a PR.
/// </summary>
public class StamdataEndpointTests(TestWebApplicationFactory factory) : IClassFixture<TestWebApplicationFactory>
{
  private readonly HttpClient _client = factory.CreateClient();

  private HttpRequestMessage Req(HttpMethod method, string path, string? role = null)
  {
    var req = new HttpRequestMessage(method, path);
    if (role is not null) req.Headers.Add("X-Role", role);
    return req;
  }

  [Fact]
  public async Task Stamdata_reads_are_admin_only()
  {
    Assert.Equal(HttpStatusCode.Forbidden, (await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata"))).StatusCode);
    Assert.Equal(HttpStatusCode.Forbidden, (await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata/professions", role: "drafter"))).StatusCode);
  }

  [Fact]
  public async Task Table_list_exposes_the_reflected_schema()
  {
    var res = await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata", role: "admin"));
    res.EnsureSuccessStatusCode();
    var tables = (await res.Content.ReadFromJsonAsync<List<StamdataTableSummaryDto>>())!;
    var professions = tables.Single(t => t.Id == "professions");
    Assert.True(professions.Temporal);
    Assert.True(professions.Columns[0].IsKey);
    Assert.Equal("program", professions.Columns[0].Name);
    Assert.Contains(professions.Columns, c => c.Name == "geldigVan" && c.Type == "date");
  }

  [Fact]
  public async Task Table_returns_all_rows_without_a_peildatum()
  {
    var res = await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata/professions", role: "admin"));
    res.EnsureSuccessStatusCode();
    var table = (await res.Content.ReadFromJsonAsync<StamdataTableDto>())!;
    Assert.Equal(5, table.Rows.Count);
  }

  [Fact]
  public async Task Peildatum_before_the_seed_windows_hides_every_row()
  {
    // Seed mappings start 2000-01-01; a 1999 peildatum yields none (valid-time filter works).
    var res = await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata/professions?peildatum=1999-01-01", role: "admin"));
    res.EnsureSuccessStatusCode();
    var table = (await res.Content.ReadFromJsonAsync<StamdataTableDto>())!;
    Assert.Empty(table.Rows);
  }

  [Fact]
  public async Task Unknown_table_is_404()
  {
    var res = await _client.SendAsync(Req(HttpMethod.Get, "/api/v1/stamdata/nope", role: "admin"));
    Assert.Equal(HttpStatusCode.NotFound, res.StatusCode);
  }
}