fix: ExamPdfExportService::generateAnalysisReportPdf()

app/Services/ExamPdfExportService.php

@@ -2,6 +2,8 @@
 
 namespace App\Services;
 
+use App\DTO\ExamAnalysisDataDto;
+use App\DTO\ReportPayloadDto;
 use App\Models\Paper;
 use App\Models\Student;
 use Illuminate\Support\Facades\DB;
@@ -184,6 +186,100 @@ class ExamPdfExportService
         }
     }
 
+    /**
+     * 生成学情分析 PDF
+     */
+    public function generateAnalysisReportPdf(string $paperId, string $studentId, ?string $recordId = null): ?string
+    {
+        if (function_exists('set_time_limit')) {
+            @set_time_limit(240);
+        }
+
+        try {
+            Log::info('ExamPdfExportService: 开始生成学情分析PDF', [
+                'paper_id' => $paperId,
+                'student_id' => $studentId,
+                'record_id' => $recordId,
+            ]);
+
+            // 构建分析数据
+            $analysisData = $this->buildAnalysisData($paperId, $studentId);
+            if (! $analysisData) {
+                Log::warning('ExamPdfExportService: buildAnalysisData返回空数据', [
+                    'paper_id' => $paperId,
+                    'student_id' => $studentId,
+                ]);
+
+                return null;
+            }
+
+            Log::info('ExamPdfExportService: buildAnalysisData返回数据', [
+                'paper_id' => $paperId,
+                'student_id' => $studentId,
+                'analysisData_keys' => array_keys($analysisData),
+                'mastery_count' => count($analysisData['mastery']['items'] ?? []),
+                'questions_count' => count($analysisData['questions'] ?? []),
+            ]);
+
+            // 创建DTO
+            $dto = ExamAnalysisDataDto::fromArray($analysisData);
+            $payloadDto = ReportPayloadDto::fromExamAnalysisDataDto($dto);
+
+            // 打印传给模板的数据
+            $templateData = $payloadDto->toArray();
+            Log::info('ExamPdfExportService: 传给模板的数据', [
+                'paper' => $templateData['paper'] ?? null,
+                'student' => $templateData['student'] ?? null,
+                'mastery' => $templateData['mastery'] ?? null,
+                'parent_mastery_levels' => $templateData['parent_mastery_levels'] ?? null,
+                'questions_count' => count($templateData['questions'] ?? []),
+                'insights_count' => count($templateData['question_insights'] ?? []),
+                'recommendations_count' => count($templateData['recommendations'] ?? []),
+            ]);
+
+            // 渲染HTML
+            $html = view('exam-analysis.pdf-report', $templateData)->render();
+            if (! $html) {
+                Log::error('ExamPdfExportService: 渲染HTML为空', ['paper_id' => $paperId]);
+
+                return null;
+            }
+
+            // 生成PDF
+            $pdfBinary = $this->buildPdf($html);
+            if (! $pdfBinary) {
+                return null;
+            }
+
+            // 保存PDF
+            $version = time();
+            $path = "analysis_reports/{$paperId}_{$studentId}_{$version}.pdf";
+            $url = $this->pdfStorageService->put($path, $pdfBinary);
+            if (! $url) {
+                Log::error('ExamPdfExportService: 保存学情PDF失败', ['path' => $path]);
+
+                return null;
+            }
+
+            // 保存URL到数据库
+            $this->saveAnalysisPdfUrl($paperId, $studentId, $recordId, $url);
+
+            return $url;
+
+        } catch (\Throwable $e) {
+            Log::error('ExamPdfExportService: 生成学情分析PDF失败', [
+                'paper_id' => $paperId,
+                'student_id' => $studentId,
+                'record_id' => $recordId,
+                'error' => $e->getMessage(),
+                'exception' => get_class($e),
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            return null;
+        }
+    }
+
     /**
      * 生成合并PDF（试卷 + 判卷）
      * 先分别生成两个PDF，然后合并