glz
4bb03aa0df
1. 新增JournalTaskAiScoreJob定时任务，实现周期性扫描处理期刊答题记录AI批改 2. 调整appsettings.json配置，新增定时任务配置与相关参数 3. 重构JournalTaskReceiveConsumer，移除原有的AI评分相关代码，仅保留答题记录保存逻辑 4. 优化任务查询条件，支持分组任务查询
941 lines
35 KiB
C#
941 lines
35 KiB
C#
using Hangfire;
|
||
using QYZH.InteractiveMagazine.Infrastructure.OSS;
|
||
using QYZH.InteractiveMagazine.Models.Entity;
|
||
using QYZH.InteractiveMagazine.Models.Enum;
|
||
using QYZH.InteractiveMagazine.WorkService.Consumers;
|
||
using SqlSugar;
|
||
using System.Net.Http.Headers;
|
||
using System.Text;
|
||
using System.Text.Json;
|
||
using System.Text.Json.Serialization;
|
||
|
||
namespace QYZH.InteractiveMagazine.WorkService.Jobs;
|
||
|
||
/// <summary>
|
||
/// 期刊任务AI批改定时任务。
|
||
/// </summary>
|
||
public class JournalTaskAiScoreJob(
|
||
ILogger<JournalTaskAiScoreJob> logger,
|
||
IConfiguration configuration,
|
||
IServiceScopeFactory scopeFactory,
|
||
IHttpClientFactory httpClientFactory,
|
||
OssService ossService)
|
||
{
|
||
private const int DefaultPendingAnswerMinutes = 30;
|
||
private const int DefaultPendingAnswerBatchSize = 100;
|
||
private const int DefaultAiScoreMaxRetryCount = 3;
|
||
private const int DefaultAiScoreRetryDelayMilliseconds = 1000;
|
||
private const int DefaultAiMaxConcurrency = 1;
|
||
private const long DefaultMaxImageBytes = 10 * 1024 * 1024;
|
||
private const string InvalidAnswerResult = "作答内容不符合要求";
|
||
private const string AiProcessingMessage = "AI批阅中，请稍后";
|
||
private static readonly object AiSemaphoreLock = new();
|
||
private static readonly object RunWindowLock = new();
|
||
private static SemaphoreSlim? aiSemaphore;
|
||
private static int aiSemaphoreLimit;
|
||
private static DateTime? lastRunAt;
|
||
|
||
/// <summary>
|
||
/// 执行AI批改。
|
||
/// </summary>
|
||
[DisableConcurrentExecution(1800)]
|
||
public void Execute()
|
||
{
|
||
ExecuteAsync().GetAwaiter().GetResult();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 异步执行AI批改。
|
||
/// </summary>
|
||
public async Task ExecuteAsync()
|
||
{
|
||
using var scope = scopeFactory.CreateScope();
|
||
var client = scope.ServiceProvider.GetRequiredService<ISqlSugarClient>();
|
||
var windowEnd = DateTime.Now;
|
||
var windowStart = GetWindowStart(windowEnd);
|
||
var batchSize = GetPendingAnswerBatchSize();
|
||
|
||
var pendingAnswers = await client.Queryable<JournalPageTaskUserAnswer>()
|
||
.Where(a => !a.IsDeleted
|
||
&& a.Status == (int)UserAnswerStatusEnum.Processing
|
||
&& ((a.UpdatedAt != null && a.UpdatedAt > windowStart && a.UpdatedAt <= windowEnd)
|
||
|| (a.UpdatedAt == null && a.CreatedAt > windowStart && a.CreatedAt <= windowEnd)))
|
||
.OrderBy(a => a.UpdatedAt, OrderByType.Asc)
|
||
.OrderBy(a => a.CreatedAt, OrderByType.Asc)
|
||
.Take(batchSize)
|
||
.ToListAsync();
|
||
|
||
if (pendingAnswers.Count == 0)
|
||
{
|
||
SetLastRunAt(windowEnd);
|
||
logger.LogInformation("期刊AI批改任务没有待处理答案，WindowStart: {WindowStart}, WindowEnd: {WindowEnd}", windowStart, windowEnd);
|
||
return;
|
||
}
|
||
|
||
logger.LogInformation("期刊AI批改任务开始，Count: {Count}, WindowStart: {WindowStart}, WindowEnd: {WindowEnd}", pendingAnswers.Count, windowStart, windowEnd);
|
||
foreach (var pendingAnswer in pendingAnswers)
|
||
{
|
||
try
|
||
{
|
||
await ProcessPendingAnswerAsync(client, pendingAnswer.Id, windowStart, windowEnd, CancellationToken.None);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
logger.LogError(ex, "期刊AI批改答案失败，AnswerId: {AnswerId}", pendingAnswer.Id);
|
||
}
|
||
}
|
||
|
||
SetLastRunAt(windowEnd);
|
||
}
|
||
|
||
private async Task ProcessPendingAnswerAsync(
|
||
ISqlSugarClient client,
|
||
long answerId,
|
||
DateTime windowStart,
|
||
DateTime windowEnd,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var answer = await client.Queryable<JournalPageTaskUserAnswer>()
|
||
.Where(a => a.Id == answerId && !a.IsDeleted)
|
||
.FirstAsync(cancellationToken);
|
||
var answerTime = answer == null ? default : GetPendingTime(answer);
|
||
if (answer == null
|
||
|| answer.Status != (int)UserAnswerStatusEnum.Processing
|
||
|| answerTime <= windowStart
|
||
|| answerTime > windowEnd)
|
||
{
|
||
return;
|
||
}
|
||
|
||
var task = await client.Queryable<JournalPageTask>()
|
||
.Where(t => t.Id == answer.JournalPageTaskId && !t.IsDeleted)
|
||
.FirstAsync(cancellationToken);
|
||
if (task == null)
|
||
{
|
||
logger.LogWarning("期刊AI批改未找到任务，AnswerId: {AnswerId}, TaskId: {TaskId}", answer.Id, answer.JournalPageTaskId);
|
||
return;
|
||
}
|
||
|
||
if (!task.NeedAiProcess)
|
||
{
|
||
logger.LogInformation("期刊任务配置为人工批改，跳过AI批改，AnswerId: {AnswerId}, TaskId: {TaskId}", answer.Id, task.Id);
|
||
return;
|
||
}
|
||
|
||
var originalUpdatedAt = answer.UpdatedAt;
|
||
var originalAnswerUrl = answer.AnswerUrl ?? string.Empty;
|
||
try
|
||
{
|
||
var scoreUnit = await BuildScoreUnitAsync(client, answer, task, cancellationToken);
|
||
var referenceAnswerMap = await BuildReferenceAnswerMapAsync(client, scoreUnit, cancellationToken);
|
||
var answerQuestion = BuildQuestionFromAnswer(answer);
|
||
var scoreResult = await ScoreQuestionAsync(scoreUnit, answerQuestion, referenceAnswerMap, cancellationToken);
|
||
var normalizedResult = NormalizeScoreResult(scoreResult, task);
|
||
await CompleteAnswerAsync(client, answer.Id, originalUpdatedAt, originalAnswerUrl, normalizedResult, cancellationToken);
|
||
}
|
||
catch (OperationCanceledException)
|
||
{
|
||
throw;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
logger.LogWarning(ex, "期刊AI批改调用失败，保持处理中等待下次重试，AnswerId: {AnswerId}", answer.Id);
|
||
await client.Updateable<JournalPageTaskUserAnswer>()
|
||
.SetColumns(a => new JournalPageTaskUserAnswer
|
||
{
|
||
Result = AiProcessingMessage,
|
||
UpdatedBy = "AI",
|
||
UpdatedAt = DateTime.Now
|
||
})
|
||
.Where(a => a.Id == answer.Id && a.Status == (int)UserAnswerStatusEnum.Processing)
|
||
.ExecuteCommandAsync(cancellationToken);
|
||
}
|
||
}
|
||
|
||
private async Task CompleteAnswerAsync(
|
||
ISqlSugarClient client,
|
||
long answerId,
|
||
DateTime? originalUpdatedAt,
|
||
string originalAnswerUrl,
|
||
JournalAnswerScoreResult scoreResult,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
client.Ado.BeginTran();
|
||
try
|
||
{
|
||
var latest = await client.Queryable<JournalPageTaskUserAnswer>()
|
||
.Where(a => a.Id == answerId && !a.IsDeleted)
|
||
.FirstAsync(cancellationToken);
|
||
if (latest == null
|
||
|| latest.Status != (int)UserAnswerStatusEnum.Processing
|
||
|| latest.UpdatedAt != originalUpdatedAt
|
||
|| !string.Equals(latest.AnswerUrl ?? string.Empty, originalAnswerUrl, StringComparison.Ordinal))
|
||
{
|
||
client.Ado.CommitTran();
|
||
logger.LogInformation("期刊AI批改结果已过期，跳过写入，AnswerId: {AnswerId}", answerId);
|
||
return;
|
||
}
|
||
|
||
await client.Insertable(BuildAnswerSnapshot(latest)).ExecuteCommandAsync(cancellationToken);
|
||
|
||
latest.Result = scoreResult.Result;
|
||
latest.Points = Math.Max(0, scoreResult.Points);
|
||
latest.GrowthPoints = Math.Max(0, scoreResult.GrowthPoint);
|
||
latest.Score = Math.Max(0, scoreResult.Score);
|
||
latest.Comprehension = Math.Max(0, scoreResult.Comprehension);
|
||
latest.Judgment = Math.Max(0, scoreResult.Judgment);
|
||
latest.Expression = Math.Max(0, scoreResult.Expression);
|
||
latest.Persuasiveness = Math.Max(0, scoreResult.Persuasiveness);
|
||
latest.Status = (int)UserAnswerStatusEnum.Complete;
|
||
latest.UpdatedBy = "AI";
|
||
latest.UpdatedAt = DateTime.Now;
|
||
|
||
await client.Updateable(latest)
|
||
.IgnoreColumns(a => new { a.CreatedBy, a.CreatedAt })
|
||
.Where(a => a.Id == latest.Id)
|
||
.ExecuteCommandAsync(cancellationToken);
|
||
|
||
client.Ado.CommitTran();
|
||
logger.LogInformation("期刊AI批改完成，AnswerId: {AnswerId}, Score: {Score}", latest.Id, latest.Score);
|
||
}
|
||
catch
|
||
{
|
||
client.Ado.RollbackTran();
|
||
throw;
|
||
}
|
||
}
|
||
|
||
private async Task<JournalScoreUnit> BuildScoreUnitAsync(
|
||
ISqlSugarClient client,
|
||
JournalPageTaskUserAnswer answer,
|
||
JournalPageTask task,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var groupId = task.GroupId > 0 ? task.GroupId : task.Id;
|
||
var groupTasks = task.GroupId > 0
|
||
? await client.Queryable<JournalPageTask>()
|
||
.Where(t => t.GroupId == task.GroupId && !t.IsDeleted)
|
||
.ToListAsync(cancellationToken)
|
||
: [task];
|
||
var pageIds = groupTasks.Select(t => t.JournalPageId).Distinct().ToList();
|
||
var pages = await client.Queryable<JournalPage>()
|
||
.Where(p => pageIds.Contains(p.Id) && !p.IsDeleted)
|
||
.ToListAsync(cancellationToken);
|
||
var pageMap = pages.ToDictionary(p => p.Id);
|
||
var question = BuildQuestionFromAnswer(answer);
|
||
var contexts = groupTasks
|
||
.OrderBy(t => pageMap.TryGetValue(t.JournalPageId, out var page) ? page.PageNum : 0)
|
||
.ThenBy(t => ParseTaskNo(t.No))
|
||
.ThenBy(t => t.Id)
|
||
.Select(t =>
|
||
{
|
||
pageMap.TryGetValue(t.JournalPageId, out var page);
|
||
return new JournalQuestionContext(question, t, page);
|
||
})
|
||
.ToList();
|
||
|
||
return new JournalScoreUnit(groupId, contexts);
|
||
}
|
||
|
||
private static async Task<Dictionary<long, List<JournalPageTaskAnswer>>> BuildReferenceAnswerMapAsync(
|
||
ISqlSugarClient client,
|
||
JournalScoreUnit scoreUnit,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var taskIds = scoreUnit.Questions.Select(q => q.Task.Id).Distinct().ToList();
|
||
var referenceAnswers = await client.Queryable<JournalPageTaskAnswer>()
|
||
.Where(a => taskIds.Contains(a.JournalPageTaskId) && !a.IsDeleted)
|
||
.ToListAsync(cancellationToken);
|
||
return referenceAnswers
|
||
.GroupBy(a => a.JournalPageTaskId)
|
||
.ToDictionary(g => g.Key, g => g.ToList());
|
||
}
|
||
|
||
private async Task<JournalAnswerScoreResult> ScoreQuestionAsync(
|
||
JournalScoreUnit scoreUnit,
|
||
Question answerQuestion,
|
||
Dictionary<long, List<JournalPageTaskAnswer>> referenceAnswerMap,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var apiKey = configuration["AiChat:ApiKey"];
|
||
var baseUrl = configuration["AiChat:BaseUrl"];
|
||
var model = configuration["AiChat:Model"];
|
||
var timeoutSeconds = configuration.GetValue<int>("AiChat:TimeoutSeconds");
|
||
var maxTokens = configuration.GetValue<int>("AiChat:MaxTokens");
|
||
var temperature = configuration.GetValue<double?>("AiChat:Temperature");
|
||
|
||
if (string.IsNullOrWhiteSpace(apiKey) || string.IsNullOrWhiteSpace(baseUrl) || string.IsNullOrWhiteSpace(model))
|
||
{
|
||
throw new InvalidOperationException("AI聊天服务配置不完整，请检查 AiChat 配置节点");
|
||
}
|
||
|
||
var content = new List<object>
|
||
{
|
||
new
|
||
{
|
||
type = "text",
|
||
text = BuildScorePrompt(scoreUnit, referenceAnswerMap)
|
||
}
|
||
};
|
||
|
||
var answerImages = await BuildAnswerImageContentsAsync(answerQuestion, cancellationToken);
|
||
if (answerImages.Count == 0)
|
||
{
|
||
throw new InvalidOperationException($"评分单元 {scoreUnit.GroupId} 缺少答案图片");
|
||
}
|
||
|
||
content.Add(new
|
||
{
|
||
type = "text",
|
||
text = $"以下是学生作答图片，共 {answerImages.Count} 张。"
|
||
});
|
||
foreach (var answerImage in answerImages)
|
||
{
|
||
content.Add(new
|
||
{
|
||
type = "image_url",
|
||
image_url = new { url = answerImage.DataUrl }
|
||
});
|
||
}
|
||
|
||
foreach (var context in scoreUnit.Questions)
|
||
{
|
||
referenceAnswerMap.TryGetValue(context.Task.Id, out var referenceAnswers);
|
||
var referenceAnswerImages = await BuildReferenceAnswerImageContentsAsync(context.Task.Id, referenceAnswers ?? [], cancellationToken);
|
||
if (referenceAnswerImages.Count == 0)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
content.Add(new
|
||
{
|
||
type = "text",
|
||
text = $"以下为任务 {context.Task.Id} 的参考答案图片，共 {referenceAnswerImages.Count} 张。"
|
||
});
|
||
foreach (var referenceAnswerImage in referenceAnswerImages)
|
||
{
|
||
content.Add(new
|
||
{
|
||
type = "image_url",
|
||
image_url = new { url = referenceAnswerImage.DataUrl }
|
||
});
|
||
}
|
||
}
|
||
|
||
var requestBody = new
|
||
{
|
||
model,
|
||
messages = new object[]
|
||
{
|
||
new
|
||
{
|
||
role = "system",
|
||
content = "你是专业的学生作答评分助手。必须只返回合法 JSON，不要返回 Markdown、解释或代码块。"
|
||
},
|
||
new
|
||
{
|
||
role = "user",
|
||
content
|
||
}
|
||
},
|
||
max_tokens = maxTokens > 0 ? maxTokens : 2000,
|
||
temperature = temperature is >= 0 ? temperature.Value : 0.1,
|
||
stream = false,
|
||
response_format = new { type = "json_object" }
|
||
};
|
||
|
||
var requestJson = JsonSerializer.Serialize(requestBody, new JsonSerializerOptions
|
||
{
|
||
DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
|
||
});
|
||
|
||
var semaphore = GetAiSemaphore();
|
||
await semaphore.WaitAsync(cancellationToken);
|
||
try
|
||
{
|
||
var scoreResult = await SendAiScoreRequestWithRetryAsync(
|
||
scoreUnit.GroupId,
|
||
$"{baseUrl.TrimEnd('/')}/chat/completions",
|
||
apiKey,
|
||
requestJson,
|
||
timeoutSeconds > 0 ? timeoutSeconds : 300,
|
||
cancellationToken);
|
||
scoreResult.Result = TrimResult(scoreResult.Result);
|
||
return scoreResult;
|
||
}
|
||
finally
|
||
{
|
||
semaphore.Release();
|
||
}
|
||
}
|
||
|
||
private static string BuildScorePrompt(
|
||
JournalScoreUnit scoreUnit,
|
||
Dictionary<long, List<JournalPageTaskAnswer>> referenceAnswerMap)
|
||
{
|
||
var referenceAnswerTexts = scoreUnit.Questions
|
||
.SelectMany(q =>
|
||
{
|
||
referenceAnswerMap.TryGetValue(q.Task.Id, out var answers);
|
||
return answers ?? [];
|
||
})
|
||
.Select(a => a.Answer?.Trim())
|
||
.Where(a => !string.IsNullOrWhiteSpace(a))
|
||
.Distinct()
|
||
.ToList();
|
||
|
||
var prompt = new StringBuilder();
|
||
prompt.AppendLine(scoreUnit.Questions.Count > 1
|
||
? "这是同一跨页题目的多页作答，请综合全部学生作答图片评分。"
|
||
: "这是单页题目作答，请根据学生作答图片评分。");
|
||
prompt.AppendLine("以题目 Prompt 和学生答案为准评分；若有参考答案请结合参考答案。");
|
||
if (referenceAnswerTexts.Count > 0)
|
||
{
|
||
prompt.AppendLine("参考答案文本：");
|
||
for (var i = 0; i < referenceAnswerTexts.Count; i++)
|
||
{
|
||
prompt.AppendLine($"{i + 1}. {referenceAnswerTexts[i]}");
|
||
}
|
||
}
|
||
|
||
prompt.AppendLine();
|
||
prompt.AppendLine("题目信息：");
|
||
foreach (var context in scoreUnit.Questions)
|
||
{
|
||
prompt.AppendLine($" 题目内容：{context.Task.Task}");
|
||
prompt.AppendLine($" 评分Prompt：{context.Task.Prompt}");
|
||
prompt.AppendLine($" 成长值上限：{context.Task.GrowthPoint}");
|
||
prompt.AppendLine($" 积分上限：{context.Task.Points}");
|
||
prompt.AppendLine($" 理解力上限：{context.Task.Comprehension}");
|
||
prompt.AppendLine($" 判断力上限：{context.Task.Judgment}");
|
||
prompt.AppendLine($" 表达力上限：{context.Task.Expression}");
|
||
prompt.AppendLine($" 说服力上限：{context.Task.Persuasiveness}");
|
||
}
|
||
|
||
prompt.AppendLine();
|
||
prompt.AppendLine("评分要求：");
|
||
prompt.AppendLine("- 不得超过题目配置中的各项上限。");
|
||
prompt.AppendLine("- 看不清、缺页、无法识别或答案明显不完整时，降低 Completion，不要猜测高分。");
|
||
prompt.AppendLine("- Completion 表示作答完整度，范围 0-100。");
|
||
prompt.AppendLine("- Result 返回 50 字内中文评语。");
|
||
prompt.AppendLine("若作答内容与题目要求不符、答非所问、空白、仅抄题或无法形成有效答案，Score/GrowthPoint/Points/Comprehension/Judgment/Expression/Persuasiveness 均返回 0。");
|
||
prompt.AppendLine("若作答内容不符合要求，Result 必须且只能返回：作答内容不符合要求。不要补充原因、建议或其他文字。");
|
||
prompt.AppendLine();
|
||
prompt.AppendLine("只返回如下 JSON 字段：");
|
||
prompt.AppendLine("{");
|
||
prompt.AppendLine(" \"Score\": 0,");
|
||
prompt.AppendLine(" \"GrowthPoint\": 0,");
|
||
prompt.AppendLine(" \"Points\": 0,");
|
||
prompt.AppendLine(" \"Comprehension\": 0,");
|
||
prompt.AppendLine(" \"Judgment\": 0,");
|
||
prompt.AppendLine(" \"Expression\": 0,");
|
||
prompt.AppendLine(" \"Persuasiveness\": 0,");
|
||
prompt.AppendLine(" \"Completion\": 100,");
|
||
prompt.AppendLine(" \"Result\": \"50字内的中文评语\"");
|
||
prompt.AppendLine("}");
|
||
|
||
return prompt.ToString();
|
||
}
|
||
|
||
private async Task<List<AnswerImageContent>> BuildAnswerImageContentsAsync(Question question, CancellationToken cancellationToken)
|
||
{
|
||
var imageUrls = question.AnswerUrl?.Where(url => !string.IsNullOrWhiteSpace(url)).Distinct().ToList() ?? [];
|
||
var result = new List<AnswerImageContent>();
|
||
foreach (var imageUrl in imageUrls)
|
||
{
|
||
var imageContent = await BuildImageContentAsync(imageUrl, question.Id, "答案图片", true, cancellationToken);
|
||
if (imageContent != null)
|
||
{
|
||
result.Add(imageContent);
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
private async Task<List<AnswerImageContent>> BuildReferenceAnswerImageContentsAsync(
|
||
long taskId,
|
||
List<JournalPageTaskAnswer> referenceAnswers,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var imageUrls = referenceAnswers
|
||
.Select(a => a.AnswerUrL)
|
||
.Where(url => !string.IsNullOrWhiteSpace(url))
|
||
.Distinct()
|
||
.Select(url => url!)
|
||
.ToList();
|
||
var result = new List<AnswerImageContent>();
|
||
foreach (var imageUrl in imageUrls)
|
||
{
|
||
var imageContent = await BuildImageContentAsync(imageUrl, taskId, "参考答案图片", false, cancellationToken);
|
||
if (imageContent != null)
|
||
{
|
||
result.Add(imageContent);
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
private async Task<AnswerImageContent?> BuildImageContentAsync(
|
||
string imageUrl,
|
||
long taskId,
|
||
string imageRole,
|
||
bool required,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
try
|
||
{
|
||
cancellationToken.ThrowIfCancellationRequested();
|
||
await using var imageStream = await GetImageStreamAsync(imageUrl, cancellationToken);
|
||
if (imageStream == null)
|
||
{
|
||
throw new InvalidOperationException($"{imageRole}读取失败，TaskId: {taskId}, Url: {imageUrl}");
|
||
}
|
||
|
||
using var memoryStream = new MemoryStream();
|
||
await imageStream.CopyToAsync(memoryStream, cancellationToken);
|
||
if (memoryStream.Length == 0)
|
||
{
|
||
throw new InvalidOperationException($"{imageRole}内容为空，TaskId: {taskId}, Url: {imageUrl}");
|
||
}
|
||
|
||
var maxImageBytes = configuration.GetValue<long>("AiChat:MaxImageBytes");
|
||
if (maxImageBytes <= 0)
|
||
{
|
||
maxImageBytes = DefaultMaxImageBytes;
|
||
}
|
||
|
||
if (memoryStream.Length > maxImageBytes)
|
||
{
|
||
throw new InvalidOperationException($"{imageRole}超过大小限制，TaskId: {taskId}, Url: {imageUrl}, Size: {memoryStream.Length}");
|
||
}
|
||
|
||
var imageBytes = memoryStream.ToArray();
|
||
var mimeType = GetImageMimeType(imageUrl, imageBytes);
|
||
return new AnswerImageContent($"data:{mimeType};base64,{Convert.ToBase64String(imageBytes)}");
|
||
}
|
||
catch (OperationCanceledException)
|
||
{
|
||
throw;
|
||
}
|
||
catch (Exception ex) when (!required)
|
||
{
|
||
logger.LogWarning(ex, "{ImageRole}读取失败，已跳过，TaskId: {TaskId}, Url: {Url}", imageRole, taskId, imageUrl);
|
||
return null;
|
||
}
|
||
}
|
||
|
||
private async Task<Stream?> GetImageStreamAsync(string imageUrl, CancellationToken cancellationToken)
|
||
{
|
||
if (imageUrl.StartsWith("http://", StringComparison.OrdinalIgnoreCase) ||
|
||
imageUrl.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
|
||
{
|
||
var httpClient = httpClientFactory.CreateClient();
|
||
return await httpClient.GetStreamAsync(imageUrl, cancellationToken);
|
||
}
|
||
|
||
return ossService.GetObjectStream(imageUrl);
|
||
}
|
||
|
||
private async Task<JournalAnswerScoreResult> SendAiScoreRequestWithRetryAsync(
|
||
long taskId,
|
||
string requestUrl,
|
||
string apiKey,
|
||
string requestJson,
|
||
int timeoutSeconds,
|
||
CancellationToken cancellationToken)
|
||
{
|
||
var maxRetryCount = configuration.GetValue<int>("AiChat:ScoreMaxRetryCount");
|
||
if (maxRetryCount <= 0)
|
||
{
|
||
maxRetryCount = DefaultAiScoreMaxRetryCount;
|
||
}
|
||
|
||
var retryDelayMilliseconds = configuration.GetValue<int>("AiChat:ScoreRetryDelayMilliseconds");
|
||
if (retryDelayMilliseconds <= 0)
|
||
{
|
||
retryDelayMilliseconds = DefaultAiScoreRetryDelayMilliseconds;
|
||
}
|
||
|
||
Exception? lastException = null;
|
||
for (var attempt = 1; attempt <= maxRetryCount; attempt++)
|
||
{
|
||
cancellationToken.ThrowIfCancellationRequested();
|
||
try
|
||
{
|
||
var httpClient = httpClientFactory.CreateClient();
|
||
httpClient.Timeout = TimeSpan.FromSeconds(timeoutSeconds);
|
||
|
||
using var request = new HttpRequestMessage(HttpMethod.Post, requestUrl);
|
||
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);
|
||
request.Content = new StringContent(requestJson, Encoding.UTF8, "application/json");
|
||
|
||
using var response = await httpClient.SendAsync(request, cancellationToken);
|
||
var responseContent = await response.Content.ReadAsStringAsync(cancellationToken);
|
||
if (response.IsSuccessStatusCode)
|
||
{
|
||
var resultJson = ExtractAssistantContent(responseContent);
|
||
return ParseScoreResult(resultJson);
|
||
}
|
||
|
||
logger.LogWarning("AI评分调用失败，TaskId: {TaskId}, Attempt: {Attempt}/{MaxRetryCount}, StatusCode: {StatusCode}, Response: {Response}",
|
||
taskId, attempt, maxRetryCount, response.StatusCode, responseContent);
|
||
if (!ShouldRetry(response.StatusCode) || attempt == maxRetryCount)
|
||
{
|
||
throw new InvalidOperationException($"AI评分调用失败：{response.StatusCode}，响应：{responseContent}");
|
||
}
|
||
}
|
||
catch (OperationCanceledException)
|
||
{
|
||
throw;
|
||
}
|
||
catch (NonRetryAiScoreException)
|
||
{
|
||
throw;
|
||
}
|
||
catch (Exception ex) when (attempt < maxRetryCount)
|
||
{
|
||
lastException = ex;
|
||
logger.LogWarning(ex, "AI评分调用异常，准备重试，TaskId: {TaskId}, Attempt: {Attempt}/{MaxRetryCount}", taskId, attempt, maxRetryCount);
|
||
}
|
||
|
||
await Task.Delay(TimeSpan.FromMilliseconds(retryDelayMilliseconds * attempt), cancellationToken);
|
||
}
|
||
|
||
throw new InvalidOperationException($"AI评分调用失败，TaskId: {taskId}", lastException);
|
||
}
|
||
|
||
private static bool ShouldRetry(System.Net.HttpStatusCode statusCode)
|
||
{
|
||
var status = (int)statusCode;
|
||
return status == 408 || status == 429 || status >= 500;
|
||
}
|
||
|
||
private static string GetImageMimeType(string imageUrl, byte[] imageBytes)
|
||
{
|
||
if (imageBytes.Length >= 4)
|
||
{
|
||
if (imageBytes[0] == 0x89 && imageBytes[1] == 0x50 && imageBytes[2] == 0x4E && imageBytes[3] == 0x47)
|
||
{
|
||
return "image/png";
|
||
}
|
||
|
||
if (imageBytes[0] == 0xFF && imageBytes[1] == 0xD8)
|
||
{
|
||
return "image/jpeg";
|
||
}
|
||
|
||
if (imageBytes[0] == 0x47 && imageBytes[1] == 0x49 && imageBytes[2] == 0x46)
|
||
{
|
||
return "image/gif";
|
||
}
|
||
|
||
if (imageBytes[0] == 0x52 && imageBytes[1] == 0x49 && imageBytes[2] == 0x46 && imageBytes[3] == 0x46)
|
||
{
|
||
return "image/webp";
|
||
}
|
||
}
|
||
|
||
return Path.GetExtension(imageUrl).ToLowerInvariant() switch
|
||
{
|
||
".png" => "image/png",
|
||
".jpg" or ".jpeg" => "image/jpeg",
|
||
".gif" => "image/gif",
|
||
".webp" => "image/webp",
|
||
_ => "image/jpeg"
|
||
};
|
||
}
|
||
|
||
private static string ExtractAssistantContent(string responseContent)
|
||
{
|
||
using var document = JsonDocument.Parse(responseContent);
|
||
var message = document.RootElement.GetProperty("choices")[0].GetProperty("message");
|
||
if (!message.TryGetProperty("content", out var contentElement))
|
||
{
|
||
throw new NonRetryAiScoreException("AI评分响应缺少 content");
|
||
}
|
||
|
||
return contentElement.ValueKind == JsonValueKind.String
|
||
? contentElement.GetString() ?? string.Empty
|
||
: contentElement.GetRawText();
|
||
}
|
||
|
||
private static JournalAnswerScoreResult ParseScoreResult(string resultJson)
|
||
{
|
||
var cleanedJson = CleanJsonContent(resultJson);
|
||
EnsureRequiredScoreFields(cleanedJson);
|
||
var result = JsonSerializer.Deserialize<JournalAnswerScoreResult>(cleanedJson, new JsonSerializerOptions
|
||
{
|
||
PropertyNameCaseInsensitive = true
|
||
});
|
||
|
||
return result ?? throw new NonRetryAiScoreException("AI评分结果解析失败");
|
||
}
|
||
|
||
private static string CleanJsonContent(string content)
|
||
{
|
||
var text = content.Trim();
|
||
if (text.StartsWith("```", StringComparison.Ordinal))
|
||
{
|
||
var firstLineEnd = text.IndexOf('\n');
|
||
if (firstLineEnd >= 0)
|
||
{
|
||
text = text[(firstLineEnd + 1)..];
|
||
}
|
||
|
||
var fenceIndex = text.LastIndexOf("```", StringComparison.Ordinal);
|
||
if (fenceIndex >= 0)
|
||
{
|
||
text = text[..fenceIndex];
|
||
}
|
||
}
|
||
|
||
var start = text.IndexOf('{');
|
||
var end = text.LastIndexOf('}');
|
||
if (start >= 0 && end > start)
|
||
{
|
||
text = text[start..(end + 1)];
|
||
}
|
||
|
||
return text.Trim();
|
||
}
|
||
|
||
private static void EnsureRequiredScoreFields(string json)
|
||
{
|
||
using var document = JsonDocument.Parse(json);
|
||
var requiredFields = new[]
|
||
{
|
||
nameof(JournalAnswerScoreResult.Score),
|
||
nameof(JournalAnswerScoreResult.GrowthPoint),
|
||
nameof(JournalAnswerScoreResult.Points),
|
||
nameof(JournalAnswerScoreResult.Comprehension),
|
||
nameof(JournalAnswerScoreResult.Judgment),
|
||
nameof(JournalAnswerScoreResult.Expression),
|
||
nameof(JournalAnswerScoreResult.Persuasiveness),
|
||
nameof(JournalAnswerScoreResult.Completion),
|
||
nameof(JournalAnswerScoreResult.Result)
|
||
};
|
||
|
||
foreach (var field in requiredFields)
|
||
{
|
||
if (!document.RootElement.EnumerateObject().Any(p => string.Equals(p.Name, field, StringComparison.OrdinalIgnoreCase)))
|
||
{
|
||
throw new NonRetryAiScoreException($"AI评分结果缺少字段：{field}");
|
||
}
|
||
}
|
||
}
|
||
|
||
private static JournalAnswerScoreResult NormalizeScoreResult(JournalAnswerScoreResult scoreResult, JournalPageTask task)
|
||
{
|
||
var scoreMax = task.Comprehension + task.Judgment + task.Expression + task.Persuasiveness;
|
||
if (scoreMax <= 0)
|
||
{
|
||
scoreMax = 100;
|
||
}
|
||
|
||
return new JournalAnswerScoreResult
|
||
{
|
||
Score = Clamp(scoreResult.Score, 0, scoreMax),
|
||
GrowthPoint = (int)Clamp(scoreResult.GrowthPoint, 0, task.GrowthPoint),
|
||
Points = (int)Clamp(scoreResult.Points, 0, task.Points),
|
||
Comprehension = Clamp(scoreResult.Comprehension, 0, task.Comprehension),
|
||
Judgment = Clamp(scoreResult.Judgment, 0, task.Judgment),
|
||
Expression = Clamp(scoreResult.Expression, 0, task.Expression),
|
||
Persuasiveness = Clamp(scoreResult.Persuasiveness, 0, task.Persuasiveness),
|
||
Completion = Clamp(scoreResult.Completion, 0, 100),
|
||
Result = NormalizeResult(scoreResult.Result)
|
||
};
|
||
}
|
||
|
||
private static string NormalizeResult(string? result)
|
||
{
|
||
var trimmedResult = TrimResult(result);
|
||
if (trimmedResult.Contains("不符合要求", StringComparison.Ordinal) ||
|
||
trimmedResult.Contains("不符", StringComparison.Ordinal))
|
||
{
|
||
return InvalidAnswerResult;
|
||
}
|
||
|
||
return trimmedResult;
|
||
}
|
||
|
||
private static float Clamp(float value, float min, float max)
|
||
{
|
||
if (float.IsNaN(value) || float.IsInfinity(value))
|
||
{
|
||
return min;
|
||
}
|
||
|
||
if (max < min)
|
||
{
|
||
max = min;
|
||
}
|
||
|
||
return Math.Min(Math.Max(value, min), max);
|
||
}
|
||
|
||
private static Question BuildQuestionFromAnswer(JournalPageTaskUserAnswer answer)
|
||
{
|
||
return new Question
|
||
{
|
||
Id = answer.JournalPageTaskId,
|
||
Url = answer.QuestionAnswerUrl ?? string.Empty,
|
||
AnswerUrl = DeserializeStringArray(answer.AnswerUrl),
|
||
AnswerStartTime = answer.AnswerStartTime,
|
||
AnswerEndTime = answer.AnswerEndTime,
|
||
AnswerTime = answer.AnswerSeconds,
|
||
BreakCount = answer.BreakCount,
|
||
BreakTimes = DeserializeBreakTimes(answer.BreakTimes)
|
||
};
|
||
}
|
||
|
||
private static string[] DeserializeStringArray(string? json)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(json))
|
||
{
|
||
return [];
|
||
}
|
||
|
||
try
|
||
{
|
||
return JsonSerializer.Deserialize<string[]>(json) ?? [];
|
||
}
|
||
catch
|
||
{
|
||
return [];
|
||
}
|
||
}
|
||
|
||
private static List<BreakTime> DeserializeBreakTimes(string? json)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(json))
|
||
{
|
||
return [];
|
||
}
|
||
|
||
try
|
||
{
|
||
return JsonSerializer.Deserialize<List<BreakTime>>(json) ?? [];
|
||
}
|
||
catch
|
||
{
|
||
return [];
|
||
}
|
||
}
|
||
|
||
private static JournalPageTaskUserAnswerSnapshot BuildAnswerSnapshot(JournalPageTaskUserAnswer answer)
|
||
{
|
||
var now = DateTime.Now;
|
||
return new JournalPageTaskUserAnswerSnapshot
|
||
{
|
||
JournalPageTaskUserAnswerId = answer.Id,
|
||
JournalId = answer.JournalId,
|
||
JournalPageId = answer.JournalPageId,
|
||
JournalPageTaskId = answer.JournalPageTaskId,
|
||
JournalPageTaskGroupId = answer.JournalPageTaskGroupId,
|
||
UserId = answer.UserId,
|
||
Result = answer.Result,
|
||
Points = answer.Points,
|
||
GrowthPoints = answer.GrowthPoints,
|
||
Score = answer.Score,
|
||
Comprehension = answer.Comprehension,
|
||
Judgment = answer.Judgment,
|
||
Expression = answer.Expression,
|
||
Persuasiveness = answer.Persuasiveness,
|
||
QuestionAnswerUrl = answer.QuestionAnswerUrl,
|
||
AnswerUrl = answer.AnswerUrl,
|
||
PageAnswerUrl = answer.PageAnswerUrl,
|
||
Revision = answer.Revision,
|
||
AnswerStartTime = answer.AnswerStartTime,
|
||
AnswerEndTime = answer.AnswerEndTime,
|
||
AnswerSeconds = answer.AnswerSeconds,
|
||
ImageRecognition = answer.ImageRecognition,
|
||
JournalPageNum = answer.JournalPageNum,
|
||
Modify = answer.Modify,
|
||
LastTag = answer.LastTag,
|
||
DotPageNum = answer.DotPageNum,
|
||
PageResultUrl = answer.PageResultUrl,
|
||
Type = answer.Type,
|
||
DotPageNo = answer.DotPageNo,
|
||
PageAnswerDotUrl = answer.PageAnswerDotUrl,
|
||
BreakCount = answer.BreakCount,
|
||
BreakTimes = answer.BreakTimes,
|
||
AssignmentStatus = answer.AssignmentStatus,
|
||
Status = answer.Status,
|
||
CreatedBy = answer.UpdatedBy ?? answer.CreatedBy ?? string.Empty,
|
||
CreatedAt = now,
|
||
UpdatedBy = answer.UpdatedBy ?? string.Empty,
|
||
UpdatedAt = now
|
||
};
|
||
}
|
||
|
||
private SemaphoreSlim GetAiSemaphore()
|
||
{
|
||
var maxConcurrency = configuration.GetValue<int>("AiChat:MaxConcurrency");
|
||
if (maxConcurrency <= 0)
|
||
{
|
||
maxConcurrency = DefaultAiMaxConcurrency;
|
||
}
|
||
|
||
lock (AiSemaphoreLock)
|
||
{
|
||
if (aiSemaphore == null || aiSemaphoreLimit != maxConcurrency)
|
||
{
|
||
aiSemaphore = new SemaphoreSlim(maxConcurrency, maxConcurrency);
|
||
aiSemaphoreLimit = maxConcurrency;
|
||
}
|
||
|
||
return aiSemaphore;
|
||
}
|
||
}
|
||
|
||
private int GetPendingAnswerMinutes()
|
||
{
|
||
var minutes = configuration.GetValue<int>("AiChat:PendingAnswerMinutes");
|
||
return minutes > 0 ? minutes : DefaultPendingAnswerMinutes;
|
||
}
|
||
|
||
private int GetPendingAnswerBatchSize()
|
||
{
|
||
var batchSize = configuration.GetValue<int>("AiChat:PendingAnswerBatchSize");
|
||
return batchSize > 0 ? batchSize : DefaultPendingAnswerBatchSize;
|
||
}
|
||
|
||
private DateTime GetWindowStart(DateTime windowEnd)
|
||
{
|
||
lock (RunWindowLock)
|
||
{
|
||
return lastRunAt ?? windowEnd.AddMinutes(-GetPendingAnswerMinutes());
|
||
}
|
||
}
|
||
|
||
private static void SetLastRunAt(DateTime runAt)
|
||
{
|
||
lock (RunWindowLock)
|
||
{
|
||
lastRunAt = runAt;
|
||
}
|
||
}
|
||
|
||
private static DateTime GetPendingTime(JournalPageTaskUserAnswer answer)
|
||
{
|
||
return answer.UpdatedAt ?? answer.CreatedAt;
|
||
}
|
||
|
||
private static int ParseTaskNo(string? taskNo)
|
||
{
|
||
return int.TryParse(taskNo, out var no) ? no : int.MaxValue;
|
||
}
|
||
|
||
private static string TrimResult(string? result)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(result))
|
||
{
|
||
return string.Empty;
|
||
}
|
||
|
||
return result.Length <= 50 ? result : result[..50];
|
||
}
|
||
}
|