dramaling-vocab-learning/backend/DramaLing.Api.Tests/Integration/Controllers/OptionsVocabularyTestControllerTests.cs

using DramaLing.Api.Tests.Integration.Fixtures;
using System.Net;

namespace DramaLing.Api.Tests.Integration.Controllers;

/// <summary>
/// OptionsVocabularyTestController 整合測試
/// 測試詞彙選項生成相關的 API 端點功能
/// </summary>
public class OptionsVocabularyTestControllerTests : IntegrationTestBase
{
    public OptionsVocabularyTestControllerTests(DramaLingWebApplicationFactory factory) : base(factory)
    {
    }

    [Fact]
    public async Task GenerateDistractors_WithValidParameters_ShouldReturnOptions()
    {
        // Arrange
        var client = CreateTestUser1Client();
        var queryParams = "?word=hello&level=A1&partOfSpeech=interjection&count=3";

        // Act
        var response = await client.GetAsync($"/api/options-vocabulary-test/generate-distractors{queryParams}");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.OK);
        var content = await response.Content.ReadAsStringAsync();
        content.Should().Contain("success");
        content.Should().NotBeNullOrEmpty();
    }

    [Fact]
    public async Task GenerateDistractors_WithMissingParameters_ShouldReturn400()
    {
        // Arrange
        var client = CreateTestUser1Client();
        var queryParams = "?word=hello"; // 缺少必要參數

        // Act
        var response = await client.GetAsync($"/api/options-vocabulary-test/generate-distractors{queryParams}");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.BadRequest);
    }

    [Fact]
    public async Task GenerateDistractors_WithoutAuth_ShouldReturn401()
    {
        // Arrange
        var queryParams = "?word=hello&level=A1&partOfSpeech=noun&count=3";

        // Act
        var response = await HttpClient.GetAsync($"/api/options-vocabulary-test/generate-distractors{queryParams}");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.Unauthorized);
    }

    [Fact]
    public async Task CheckSufficiency_WithValidData_ShouldReturnStatus()
    {
        // Arrange
        var client = CreateTestUser1Client();
        var queryParams = "?level=A1&partOfSpeech=noun";

        // Act
        var response = await client.GetAsync($"/api/options-vocabulary-test/check-sufficiency{queryParams}");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.OK);
        var content = await response.Content.ReadAsStringAsync();
        content.Should().Contain("success");
    }

    [Fact]
    public async Task GenerateDistractorsDetailed_WithValidData_ShouldReturnDetailedOptions()
    {
        // Arrange
        var client = CreateTestUser1Client();
        var queryParams = "?word=beautiful&level=A2&partOfSpeech=adjective&count=4";

        // Act
        var response = await client.GetAsync($"/api/options-vocabulary-test/generate-distractors-detailed{queryParams}");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.OK);
        var content = await response.Content.ReadAsStringAsync();
        content.Should().Contain("success");
        content.Should().NotBeNullOrEmpty();
    }

    [Fact]
    public async Task CoverageTest_ShouldReturnCoverageInfo()
    {
        // Arrange
        var client = CreateTestUser1Client();

        // Act
        var response = await client.GetAsync("/api/options-vocabulary-test/coverage-test");

        // Assert
        response.StatusCode.Should().Be(HttpStatusCode.OK);
        var content = await response.Content.ReadAsStringAsync();
        content.Should().Contain("success");
    }

    [Fact]
    public async Task VocabularyOptionsGeneration_ShouldBeConsistent()
    {
        // Arrange
        var client = CreateTestUser1Client();
        var word = "sophisticated";
        var queryParams = $"?word={word}&level=C1&partOfSpeech=adjective&count=3";

        // Act - 多次調用同一個端點
        var response1 = await client.GetAsync($"/api/options-vocabulary-test/generate-distractors{queryParams}");
        var response2 = await client.GetAsync($"/api/options-vocabulary-test/generate-distractors{queryParams}");

        // Assert
        response1.StatusCode.Should().Be(HttpStatusCode.OK);
        response2.StatusCode.Should().Be(HttpStatusCode.OK);

        var content1 = await response1.Content.ReadAsStringAsync();
        var content2 = await response2.Content.ReadAsStringAsync();

        // Mock 服務應該返回一致的格式（雖然內容可能不同）
        content1.Should().Contain("success");
        content2.Should().Contain("success");
    }
}