Update app.py

app.py

@@ -28,7 +28,7 @@ Your task is to **align three sources**:
 - Use `##` for main questions and `###` for sub-questions.  
 - Write **QP | MS | AS** exactly in that order.  
 - Preserve all mathematical expressions inside fenced code blocks.  
-- Do not re-create diagrams/graphs. Write `[Graph]`.  
+- Do not re-create diagrams/graphs. Write `[Graph omitted]`.  
 - If part of the student's answer is unreadable, write `[illegible]`.  
 - If a student skipped a question, write `[No response]`.  
 - Keep MS annotations (M1, A1, R1, etc.) exactly as in the original.  
@@ -98,7 +98,6 @@ After the table, provide:
     }
 }
 
-
 # -------------------- CONFIG --------------------
 genai.configure(api_key=os.getenv("GEMINI_API_KEY"))
 
@@ -112,88 +111,76 @@ def save_as_pdf(text, filename="output.pdf"):
 # ---------- HELPER: Create Model with Fallback ----------
 def create_model():
     try:
+        print("⚡ Using gemini-2.5-pro model")
         return genai.GenerativeModel("gemini-2.5-pro", generation_config={"temperature": 0})
     except Exception:
+        print("⚡ Falling back to gemini-2.5-flash model")
         return genai.GenerativeModel("gemini-2.5-flash", generation_config={"temperature": 0})
 
-# ---------- STEP 1: ALIGNMENT ----------
-def align_documents(qp_file, ms_file, ans_file):
+# ---------- PIPELINE: ALIGN + GRADE ----------
+def align_and_grade(qp_file, ms_file, ans_file):
     try:
+        # Uploads
         qp_uploaded = genai.upload_file(path=qp_file, display_name="Question Paper")
         ms_uploaded = genai.upload_file(path=ms_file, display_name="Markscheme")
         ans_uploaded = genai.upload_file(path=ans_file, display_name="Answer Sheet")
 
         model = create_model()
+
+        # Step 1: Alignment
         resp = model.generate_content([
             PROMPTS["ALIGNMENT_PROMPT"]["content"],
             qp_uploaded,
             ms_uploaded,
             ans_uploaded
         ])
-
         aligned_text = getattr(resp, "text", None)
         if not aligned_text and resp.candidates:
             aligned_text = resp.candidates[0].content.parts[0].text
 
-        pdf_path = save_as_pdf(aligned_text, "aligned_qp_ms_as.pdf")
-        return aligned_text, pdf_path
-    except Exception as e:
-        return f"❌ Error during alignment: {e}", None
+        aligned_pdf_path = save_as_pdf(aligned_text, "aligned_qp_ms_as.pdf")
 
-# ---------- STEP 2: GRADING ----------
-def grade(aligned_text, ans_file):
-    try:
-        model = create_model()
+        # Step 2: Grading (automatic)
         response = model.generate_content([
             PROMPTS["GRADING_PROMPT"]["content"],
             aligned_text
         ])
-
         grading = getattr(response, "text", None)
         if not grading and response.candidates:
             grading = response.candidates[0].content.parts[0].text
 
-        # Use answer sheet filename for graded PDF
+        # Save grading report with student's answer filename
         base_name = os.path.splitext(os.path.basename(ans_file))[0]
-        pdf_name = f"{base_name}_graded.pdf"
+        grading_pdf_path = save_as_pdf(grading, f"{base_name}_graded.pdf")
+
+        return aligned_text, aligned_pdf_path, grading, grading_pdf_path
 
-        pdf_path = save_as_pdf(grading, pdf_name)
-        return grading, pdf_path
     except Exception as e:
-        return f"❌ Error during grading: {e}", None
+        return f"❌ Error: {e}", None, None, None
 
 # ---------- GRADIO APP ----------
-with gr.Blocks(title="LeadIB AI Grading (Alignment + Grading)") as demo:
-    gr.Markdown("## LeadIB AI Grading\nUpload Question Paper, Markscheme, and Student Answer Sheet to align and grade.")
+with gr.Blocks(title="LeadIB AI Grading (Alignment + Auto-Grading)") as demo:
+    gr.Markdown("## LeadIB AI Grading\nUpload Question Paper, Markscheme, and Student Answer Sheet.\nThe system will align and grade automatically.")
 
     with gr.Row():
         qp_file = gr.File(label="Upload Question Paper (PDF)", type="filepath")
         ms_file = gr.File(label="Upload Markscheme (PDF)", type="filepath")
         ans_file = gr.File(label="Upload Student Answer Sheet (PDF)", type="filepath")
 
-    # Step 1: Alignment
-    align_btn = gr.Button("Step 1: Align QP | MS | AS")
+    run_btn = gr.Button("Start Alignment + Auto-Grading")
+
     with gr.Row():
         aligned_out = gr.Textbox(label="📄 Aligned QP | MS | AS", lines=20)
         aligned_pdf = gr.File(label="⬇️ Download Aligned (PDF)")
 
-    # Step 2: Grading
-    grade_btn = gr.Button("Step 2: Grade the Student")
     with gr.Row():
         grading_out = gr.Textbox(label="✅ Grading Report", lines=20)
         grading_pdf = gr.File(label="⬇️ Download Grading Report (PDF)")
 
-    # Button Logic
-    align_btn.click(
-        fn=align_documents,
+    run_btn.click(
+        fn=align_and_grade,
         inputs=[qp_file, ms_file, ans_file],
-        outputs=[aligned_out, aligned_pdf],
-        show_progress=True
-    )
-    grade_btn.click(
-        fn=grade,
-        inputs=[aligned_out, ans_file],
-        outputs=[grading_out, grading_pdf],
+        outputs=[aligned_out, aligned_pdf, grading_out, grading_pdf],
         show_progress=True
     )