feat: 實現 AI 服務整合和前後端連接
- 整合 Google Gemini API 服務 - 添加測試端點支援無認證調用 - 實現前端 API 調用和資料格式轉換 - 完善錯誤處理和模擬資料回退 - 添加詞卡保存到資料庫功能 - 配置 User Secrets 安全管理 API 金鑰 - 優化 AI 服務條件判斷邏輯 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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parent
303f0ac727
commit
448883ff97
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@ -29,6 +29,88 @@ public class AIController : ControllerBase
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_logger = logger;
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}
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/// <summary>
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/// AI 生成詞卡測試端點 (開發用，無需認證)
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/// </summary>
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[HttpPost("test/generate")]
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[AllowAnonymous]
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public async Task<ActionResult> TestGenerateCards([FromBody] GenerateCardsRequest request)
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{
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try
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{
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// 基本驗證
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if (string.IsNullOrWhiteSpace(request.InputText))
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{
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return BadRequest(new { Success = false, Error = "Input text is required" });
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}
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if (request.InputText.Length > 5000)
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{
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return BadRequest(new { Success = false, Error = "Input text must be less than 5000 characters" });
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}
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if (!new[] { "vocabulary", "smart" }.Contains(request.ExtractionType))
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{
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return BadRequest(new { Success = false, Error = "Invalid extraction type" });
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}
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if (request.CardCount < 1 || request.CardCount > 20)
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{
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return BadRequest(new { Success = false, Error = "Card count must be between 1 and 20" });
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}
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// 測試模式：直接使用模擬資料
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try
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{
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var generatedCards = await _geminiService.GenerateCardsAsync(
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request.InputText,
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request.ExtractionType,
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request.CardCount);
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return Ok(new
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{
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Success = true,
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Data = new
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{
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TaskId = Guid.NewGuid(),
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Status = "completed",
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GeneratedCards = generatedCards
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},
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Message = $"Successfully generated {generatedCards.Count} cards"
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});
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}
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catch (InvalidOperationException ex) when (ex.Message.Contains("API key"))
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{
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_logger.LogWarning("Gemini API key not configured, using mock data");
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// 返回模擬資料
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var mockCards = GenerateMockCards(request.CardCount);
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return Ok(new
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{
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Success = true,
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Data = new
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{
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TaskId = Guid.NewGuid(),
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Status = "completed",
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GeneratedCards = mockCards
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},
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Message = $"Generated {mockCards.Count} mock cards (Test mode)"
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});
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error in AI card generation test");
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return StatusCode(500, new
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{
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Success = false,
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Error = "Failed to generate cards",
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Details = ex.Message,
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Timestamp = DateTime.UtcNow
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});
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}
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}
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/// <summary>
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/// AI 生成詞卡 (支援 /frontend/app/generate/page.tsx)
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/// </summary>
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@ -155,6 +237,100 @@ public class AIController : ControllerBase
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}
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}
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/// <summary>
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/// 測試版保存生成的詞卡 (無需認證)
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/// </summary>
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[HttpPost("test/save")]
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[AllowAnonymous]
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public async Task<ActionResult> TestSaveCards([FromBody] TestSaveCardsRequest request)
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{
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try
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{
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// 基本驗證
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if (request.SelectedCards == null || request.SelectedCards.Count == 0)
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{
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return BadRequest(new { Success = false, Error = "Selected cards are required" });
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}
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// 創建或使用預設卡組
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var defaultCardSet = await _context.CardSets
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.FirstOrDefaultAsync(cs => cs.IsDefault);
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if (defaultCardSet == null)
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{
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// 創建預設卡組
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defaultCardSet = new CardSet
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{
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Id = Guid.NewGuid(),
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UserId = Guid.NewGuid(), // 測試用戶 ID
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Name = "AI 生成詞卡",
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Description = "通過 AI 智能生成的詞卡集合",
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Color = "#3B82F6",
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IsDefault = true,
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CreatedAt = DateTime.UtcNow,
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UpdatedAt = DateTime.UtcNow
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};
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_context.CardSets.Add(defaultCardSet);
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}
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// 將生成的詞卡轉換為資料庫實體
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var flashcardsToSave = request.SelectedCards.Select(card => new Flashcard
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{
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Id = Guid.NewGuid(),
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UserId = defaultCardSet.UserId,
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CardSetId = defaultCardSet.Id,
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Word = card.Word,
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Translation = card.Translation,
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Definition = card.Definition,
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PartOfSpeech = card.PartOfSpeech,
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Pronunciation = card.Pronunciation,
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Example = card.Example,
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ExampleTranslation = card.ExampleTranslation,
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DifficultyLevel = card.DifficultyLevel,
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CreatedAt = DateTime.UtcNow,
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UpdatedAt = DateTime.UtcNow
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}).ToList();
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_context.Flashcards.AddRange(flashcardsToSave);
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// 更新卡組計數
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defaultCardSet.CardCount += flashcardsToSave.Count;
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defaultCardSet.UpdatedAt = DateTime.UtcNow;
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await _context.SaveChangesAsync();
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return Ok(new
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{
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Success = true,
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Data = new
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{
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SavedCount = flashcardsToSave.Count,
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CardSetId = defaultCardSet.Id,
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CardSetName = defaultCardSet.Name,
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Cards = flashcardsToSave.Select(f => new
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{
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f.Id,
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f.Word,
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f.Translation,
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f.Definition
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})
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},
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Message = $"Successfully saved {flashcardsToSave.Count} cards to deck '{defaultCardSet.Name}'"
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});
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error saving generated cards");
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return StatusCode(500, new
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{
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Success = false,
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Error = "Failed to save cards",
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Details = ex.Message,
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Timestamp = DateTime.UtcNow
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});
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}
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}
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/// <summary>
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/// 保存生成的詞卡
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/// </summary>
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@ -375,3 +551,8 @@ public class ValidateCardRequest
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public Guid FlashcardId { get; set; }
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public Guid? ErrorReportId { get; set; }
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}
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public class TestSaveCardsRequest
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{
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public List<GeneratedCard> SelectedCards { get; set; } = new();
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}
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@ -1,9 +1,10 @@
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<Project Sdk="Microsoft.NET.Sdk.Web">
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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<UserSecretsId>d32b5470-3ba2-442c-8352-dd968fd406d8</UserSecretsId>
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</PropertyGroup>
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<ItemGroup>
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@ -30,7 +30,7 @@ public class GeminiService : IGeminiService
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{
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try
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{
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if (string.IsNullOrEmpty(_apiKey))
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if (string.IsNullOrEmpty(_apiKey) || _apiKey == "your-gemini-api-key-here")
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{
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throw new InvalidOperationException("Gemini API key not configured");
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}
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@ -51,7 +51,7 @@ public class GeminiService : IGeminiService
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{
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try
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{
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if (string.IsNullOrEmpty(_apiKey))
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if (string.IsNullOrEmpty(_apiKey) || _apiKey == "your-gemini-api-key-here")
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{
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throw new InvalidOperationException("Gemini API key not configured");
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}
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@ -86,19 +86,116 @@ function GenerateContent() {
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}
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]
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const handleGenerate = () => {
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const handleGenerate = async () => {
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if (!textInput.trim()) return
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setIsGenerating(true)
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// Simulate AI generation
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setTimeout(() => {
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setGeneratedCards(mockGeneratedCards)
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setShowPreview(true)
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setIsGenerating(false)
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}, 2000)
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try {
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const response = await fetch('http://localhost:5000/api/ai/test/generate', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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inputText: textInput,
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extractionType: extractionType,
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cardCount: cardCount
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})
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})
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if (!response.ok) {
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throw new Error(`HTTP error! status: ${response.status}`)
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}
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const handleSaveCards = () => {
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// Mock save action
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alert('詞卡已保存到您的卡組！')
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const result = await response.json()
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if (result.success) {
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// 將後端格式轉換為前端格式
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const convertedCards = result.data.generatedCards.map((card: any, index: number) => ({
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id: index + 1,
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word: card.word,
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partOfSpeech: card.partOfSpeech,
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pronunciation: {
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us: card.pronunciation || '/unknown/',
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uk: card.pronunciation || '/unknown/'
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},
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translation: card.translation,
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definition: card.definition,
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synonyms: card.synonyms || [],
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antonyms: [], // 後端暫不提供，使用空陣列
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originalExample: card.example || '',
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originalExampleTranslation: card.exampleTranslation || '',
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generatedExample: {
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sentence: card.example || '',
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translation: card.exampleTranslation || '',
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imageUrl: '/images/examples/placeholder.png', // 佔位圖
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audioUrl: '#'
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},
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difficulty: card.difficultyLevel || 'B1'
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}))
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setGeneratedCards(convertedCards)
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setShowPreview(true)
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} else {
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throw new Error(result.error || 'Generation failed')
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}
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} catch (error) {
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console.error('Error generating cards:', error)
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alert(`生成詞卡時發生錯誤: ${error instanceof Error ? error.message : '未知錯誤'}`)
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// 錯誤時使用模擬資料作為備用
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setGeneratedCards(mockGeneratedCards)
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setShowPreview(true)
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} finally {
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setIsGenerating(false)
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}
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}
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const handleSaveCards = async () => {
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if (generatedCards.length === 0) return
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try {
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// 將前端格式轉換為後端格式
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const cardsToSave = generatedCards.map(card => ({
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word: card.word,
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partOfSpeech: card.partOfSpeech,
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pronunciation: card.pronunciation.us, // 使用美式發音
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translation: card.translation,
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definition: card.definition,
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synonyms: card.synonyms,
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example: card.originalExample || card.generatedExample.sentence,
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exampleTranslation: card.originalExampleTranslation || card.generatedExample.translation,
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difficultyLevel: card.difficulty
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}))
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const response = await fetch('http://localhost:5000/api/ai/test/save', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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selectedCards: cardsToSave
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})
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})
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if (!response.ok) {
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throw new Error(`HTTP error! status: ${response.status}`)
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}
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const result = await response.json()
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if (result.success) {
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alert(`🎉 成功保存 ${result.data.savedCount} 張詞卡到「${result.data.cardSetName}」！`)
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// 可選：清空生成的詞卡或跳轉到詞卡列表
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// setGeneratedCards([])
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// setShowPreview(false)
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} else {
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throw new Error(result.error || 'Save failed')
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}
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} catch (error) {
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console.error('Error saving cards:', error)
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alert(`❌ 保存詞卡時發生錯誤: ${error instanceof Error ? error.message : '未知錯誤'}`)
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}
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}
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const toggleImageForCard = (cardId: number) => {
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