Refactorizacion de PDFs y cambio de biblioteca backend 1.0.22-

-Funcional Usuarios, exportar Pdfs front v1.0.25

backend/app/main.py

@@ -1668,126 +1668,32 @@ def export_inspection_to_pdf(
     current_user: models.User = Depends(get_current_user),
     db: Session = Depends(get_db)
 ):
-    """Exportar inspección a PDF con imágenes"""
+    """Descargar el PDF guardado en MinIO para la inspección"""
     from fastapi.responses import StreamingResponse
-    from reportlab.lib.pagesizes import letter, A4
+    import requests
-    from reportlab.lib import colors
-    from reportlab.lib.units import inch
-    from reportlab.platypus import SimpleDocTemplate, Table, TableStyle, Paragraph, Spacer, Image as RLImage, PageBreak
-    from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
-    from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_RIGHT
-    from io import BytesIO
-    import base64
-    
     # Obtener inspección
     inspection = db.query(models.Inspection).filter(
         models.Inspection.id == inspection_id
     ).first()
-    
     if not inspection:
         raise HTTPException(status_code=404, detail="Inspección no encontrada")
-    
-    # Verificar permisos (admin, asesor o mecánico dueño)
     if current_user.role not in ["admin", "asesor"] and inspection.mechanic_id != current_user.id:
         raise HTTPException(status_code=403, detail="No tienes permisos para ver esta inspección")
-    
+    # Si existe pdf_url, descargar desde MinIO y devolverlo
-    # Obtener datos relacionados
+    if inspection.pdf_url:
-    checklist = db.query(models.Checklist).filter(models.Checklist.id == inspection.checklist_id).first()
-    mechanic = db.query(models.User).filter(models.User.id == inspection.mechanic_id).first()
-    answers = db.query(models.Answer).options(
-        joinedload(models.Answer.media_files)
-    ).join(models.Question).filter(
-        models.Answer.inspection_id == inspection_id
-    ).order_by(models.Question.section, models.Question.order).all()
-    
-    # Crear PDF en memoria
-    buffer = BytesIO()
-    doc = SimpleDocTemplate(buffer, pagesize=A4, rightMargin=30, leftMargin=30, topMargin=30, bottomMargin=30)
-    elements = []
-    styles = getSampleStyleSheet()
-    title_style = styles['Title']
-    normal_style = styles['Normal']
-    header_style = ParagraphStyle('Header', parent=styles['Heading2'], alignment=TA_CENTER, spaceAfter=12)
-    # Portada
-    elements.append(Paragraph(f"Informe de Inspección #{inspection.id}", title_style))
-    elements.append(Spacer(1, 12))
-    elements.append(Paragraph(f"Vehículo: {inspection.vehicle_brand or ''} {inspection.vehicle_model or ''} - Placa: {inspection.vehicle_plate}", normal_style))
-    elements.append(Paragraph(f"Cliente: {inspection.client_name or ''}", normal_style))
-    elements.append(Paragraph(f"Mecánico: {mechanic.full_name if mechanic else ''}", normal_style))
-    elements.append(Paragraph(f"Checklist: {checklist.name if checklist else ''}", normal_style))
-    elements.append(Paragraph(f"Fecha: {inspection.started_at.strftime('%d/%m/%Y %H:%M') if inspection.started_at else ''}", normal_style))
-    elements.append(Spacer(1, 18))
-    # Tabla de respuestas
-    table_data = [["Sección", "Pregunta", "Respuesta", "Estado", "Comentario", "Miniaturas"]]
-    for ans in answers:
-        question = ans.question
-        media_imgs = []
-        for media in ans.media_files:
-            if media.file_type == "image":
         try:
-                    # Descargar imagen y agregar miniatura
+            pdf_resp = requests.get(inspection.pdf_url, stream=True)
-                    import requests
+            if pdf_resp.status_code == 200:
-                    img_resp = requests.get(media.file_path)
+                filename = inspection.pdf_url.split("/")[-1]
-                    if img_resp.status_code == 200:
+                return StreamingResponse(pdf_resp.raw, media_type="application/pdf", headers={
-                        img_bytes = BytesIO(img_resp.content)
-                        rl_img = RLImage(img_bytes, width=0.7*inch, height=0.7*inch)
-                        media_imgs.append(rl_img)
-                except Exception as e:
-                    print(f"Error cargando imagen {media.file_path}: {e}")
-        row = [
-            question.section or "",
-            question.text,
-            ans.answer_value,
-            ans.status,
-            ans.comment or "",
-            media_imgs if media_imgs else ""
-        ]
-        table_data.append(row)
-    # Construir tabla con miniaturas
-    table = Table(table_data, colWidths=[1.2*inch, 2.5*inch, 1*inch, 0.8*inch, 2*inch, 1.5*inch])
-    table.setStyle(TableStyle([
-        ('BACKGROUND', (0,0), (-1,0), colors.lightgrey),
-        ('TEXTCOLOR', (0,0), (-1,0), colors.black),
-        ('ALIGN', (0,0), (-1,-1), 'LEFT'),
-        ('VALIGN', (0,0), (-1,-1), 'TOP'),
-        ('FONTNAME', (0,0), (-1,0), 'Helvetica-Bold'),
-        ('FONTSIZE', (0,0), (-1,0), 10),
-        ('BOTTOMPADDING', (0,0), (-1,0), 8),
-        ('GRID', (0,0), (-1,-1), 0.5, colors.grey),
-    ]))
-    elements.append(table)
-    elements.append(Spacer(1, 18))
-    # Pie de página
-    elements.append(Paragraph(f"Generado por Checklist Inteligente - {datetime.now().strftime('%d/%m/%Y %H:%M')}", header_style))
-    # Construir PDF
-    try:
-        doc.build(elements)
-    except Exception as e:
-        print(f"Error al generar PDF: {e}")
-    buffer.seek(0)
-    pdf_size = len(buffer.getvalue())
-    print(f"PDF generado, tamaño: {pdf_size} bytes")
-    # Guardar localmente para depuración
-    try:
-        with open(f"/tmp/test_inspeccion_{inspection_id}.pdf", "wb") as f:
-            f.write(buffer.getvalue())
-    except Exception as e:
-        print(f"No se pudo guardar PDF local: {e}")
-    now = datetime.now()
-    folder = f"{now.year}/{now.month:02d}"
-    filename = f"inspeccion_{inspection_id}_{inspection.vehicle_plate or 'sin-patente'}.pdf"
-    s3_key = f"{folder}/{filename}"
-    # Subir PDF a S3/MinIO
-    buffer.seek(0)  # Asegura que el puntero esté al inicio
-    s3_client.upload_fileobj(buffer, S3_PDF_BUCKET, s3_key, ExtraArgs={"ContentType": "application/pdf"})
-    pdf_url = f"{S3_ENDPOINT}/{S3_PDF_BUCKET}/{s3_key}"
-    inspection.pdf_url = pdf_url
-    db.commit()
-    # Descargar el PDF directamente
-    buffer.seek(0)
-    return StreamingResponse(buffer, media_type="application/pdf", headers={
                     "Content-Disposition": f"attachment; filename={filename}"
                 })
+            else:
+                raise HTTPException(status_code=404, detail="No se pudo descargar el PDF desde MinIO")
+        except Exception as e:
+            raise HTTPException(status_code=500, detail=f"Error al descargar PDF: {e}")
+    else:
+        raise HTTPException(status_code=404, detail="La inspección no tiene PDF generado")
 
 
 # ============= HEALTH CHECK =============

frontend/src/App.jsx

@@ -1865,8 +1865,9 @@ function InspectionDetailModal({ inspection, user, onClose, onUpdate }) {
                   const response = await fetch(`${API_URL}/api/inspections/${inspection.id}/pdf`, {
                     headers: { 'Authorization': `Bearer ${token}` }
                   })
-                  
                   if (response.ok) {
+                    const contentType = response.headers.get('content-type')
+                    if (contentType && contentType.includes('application/pdf')) {
                       const blob = await response.blob()
                       const url = window.URL.createObjectURL(blob)
                       const a = document.createElement('a')
@@ -1876,6 +1877,27 @@ function InspectionDetailModal({ inspection, user, onClose, onUpdate }) {
                       a.click()
                       document.body.removeChild(a)
                       window.URL.revokeObjectURL(url)
+                    } else {
+                      const data = await response.json()
+                      if (data.pdf_url) {
+                        const pdfRes = await fetch(data.pdf_url)
+                        if (pdfRes.ok) {
+                          const pdfBlob = await pdfRes.blob()
+                          const pdfUrl = window.URL.createObjectURL(pdfBlob)
+                          const a = document.createElement('a')
+                          a.href = pdfUrl
+                          a.download = `inspeccion_${inspection.id}_${inspection.vehicle_plate || 'sin-patente'}.pdf`
+                          document.body.appendChild(a)
+                          a.click()
+                          document.body.removeChild(a)
+                          window.URL.revokeObjectURL(pdfUrl)
+                        } else {
+                          alert('No se pudo descargar el PDF desde MinIO')
+                        }
+                      } else {
+                        alert('No se encontró la URL del PDF')
+                      }
+                    }
                   } else {
                     alert('Error al generar PDF')
                   }