Update app.py

app.py

@@ -4,34 +4,32 @@ import PyPDF2
 import io
 from docx import Document
 import os
+import fitz  # PyMuPDF for better PDF handling
 
 # For PDF generation
 from reportlab.pdfgen import canvas
 from reportlab.lib.pagesizes import letter
-from reportlab.lib import utils
 from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer
 from reportlab.lib.styles import getSampleStyleSheet
 
-# Initialize the inference client from Hugging Face.
-client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
+# Initialize Hugging Face Inference Client with Meta-Llama-3.1-8B-Instruct
+client = InferenceClient(
+    model="meta-llama/Meta-Llama-3.1-8B-Instruct",
+    token=os.getenv("HF_TOKEN")
+)
 
+# Function to extract text from PDF
 
 def extract_text_from_pdf(pdf_file):
-    """Extract text from PDF file."""
     try:
         pdf_reader = PyPDF2.PdfReader(pdf_file)
-        text = ""
-        for page in pdf_reader.pages:
-            page_text = page.extract_text()
-            if page_text:
-                text += page_text + "\n"
+        text = "".join(page.extract_text() or "" for page in pdf_reader.pages)
         return text.strip() or "No text could be extracted from the PDF."
     except Exception as e:
         return f"Error reading PDF: {e}"
 
-
+# Function to extract text from DOCX
 def extract_text_from_docx(docx_file):
-    """Extract text from DOCX file."""
     try:
         doc = Document(docx_file)
         text = "\n".join(para.text for para in doc.paragraphs)
@@ -39,14 +37,13 @@ def extract_text_from_docx(docx_file):
     except Exception as e:
         return f"Error reading DOCX: {e}"
 
-
+# Function to analyze CV
 def parse_cv(file, job_description):
-    """Analyze the CV, show the prompt (debug) and return LLM analysis."""
     if file is None:
         return "Please upload a CV file.", ""
 
     try:
-        file_path = file.name  # Get the file path
+        file_path = file.name
         file_ext = os.path.splitext(file_path)[1].lower()
 
         if file_ext == ".pdf":
@@ -54,20 +51,13 @@ def parse_cv(file, job_description):
         elif file_ext == ".docx":
             extracted_text = extract_text_from_docx(file_path)
         else:
-            return (
-                "Unsupported file format. Please upload a PDF or DOCX file.",
-                "Unsupported file format.",
-            )
-
+            return "Unsupported file format. Please upload a PDF or DOCX file.", ""
     except Exception as e:
-        error_msg = f"Error reading file: {e}"
-        return error_msg, error_msg
+        return f"Error reading file: {e}", ""
 
-    # Check for extraction errors
     if extracted_text.startswith("Error"):
         return extracted_text, "Error during text extraction. Please check the file."
 
-    # Prepare debug prompt
     prompt = (
         f"Analyze the CV against the job description. Provide a summary, assessment, "
         f"and a score 0-10.\n\n"
@@ -75,140 +65,100 @@ def parse_cv(file, job_description):
         f"Candidate CV:\n{extracted_text}\n"
     )
 
-    # Call LLM
     try:
         analysis = client.text_generation(prompt, max_new_tokens=512)
-        # Show both the debug prompt and the LLM analysis in the "Analysis Report"
-        analysis_report = (
-            f"--- DEBUG PROMPT ---\n{prompt}\n"
-            f"--- LLM ANALYSIS ---\n{analysis}"
-        )
-        return extracted_text, analysis_report
+        return extracted_text, f"--- Analysis Report ---\n{analysis}"
     except Exception as e:
         return extracted_text, f"Analysis Error: {e}"
 
-
-def respond(
-    message,
-    history: list[tuple[str, str]],
-    system_message,
-    max_tokens,
-    temperature,
-    top_p,
-):
-    """Generate chatbot response."""
-    messages = [{"role": "system", "content": system_message}]
-    for user_msg, bot_msg in history:
-        if user_msg:
-            messages.append({"role": "user", "content": user_msg})
-        if bot_msg:
-            messages.append({"role": "assistant", "content": bot_msg})
-    messages.append({"role": "user", "content": message})
-
-    response = ""
+# Function to optimize resume
+def optimize_resume(resume_text, job_title):
+    prompt = f"Optimize the following resume for the job title '{job_title}':\n\n{resume_text}"
+    responses = []
     try:
-        for message_chunk in client.chat_completion(
-            messages,
-            max_tokens=max_tokens,
+        for message in client.chat_completion(
+            messages=[{"role": "user", "content": prompt}],
+            max_tokens=1000,
             stream=True,
-            temperature=temperature,
-            top_p=top_p,
         ):
-            token = message_chunk.choices[0].delta.content
-            response += token
-            yield response
+            responses.append(message.choices[0].delta.content)
     except Exception as e:
-        yield f"Error during chat generation: {e}"
+        return f"Error during model inference: {e}"
+    
+    return ''.join(responses)
 
+# Function to process resume and job title inputs
+def process_resume(file, job_title):
+    try:
+        file_name = file.name
+        if file_name.endswith(".pdf"):
+            resume_text = extract_text_from_pdf(file.name)
+        elif file_name.endswith(".docx"):
+            resume_text = extract_text_from_docx(file.name)
+        else:
+            return "Unsupported file format. Please upload a PDF or DOCX file."
+        
+        optimized_resume = optimize_resume(resume_text, job_title)
+        return optimized_resume
+    except Exception as e:
+        return f"Error processing resume: {e}"
 
+# Function to generate a PDF report
 def create_pdf_report(report_text):
-    """Creates a PDF report using SimpleDocTemplate for better formatting."""
-    if not report_text.strip():
-        report_text = "No analysis report to convert."
-
     buffer = io.BytesIO()
     doc = SimpleDocTemplate(buffer, pagesize=letter)
     styles = getSampleStyleSheet()
-    Story = []
-
-    # Title
-    Story.append(Paragraph("<b>Analysis Report</b>", styles["Title"]))
-    Story.append(Spacer(1, 12))
-
-    # Report Content
+    Story = [Paragraph("<b>Analysis Report</b>", styles["Title"]), Spacer(1, 12)]
+    
     for line in report_text.split("\n"):
         Story.append(Paragraph(line, styles["Normal"]))
-        Story.append(Spacer(1, 6))  # Add a small space between lines
-
+        Story.append(Spacer(1, 6))
+    
     doc.build(Story)
     buffer.seek(0)
     return buffer
 
-
+# Function to toggle the download button
 def toggle_download_button(analysis_report):
-    """Toggle the download button."""
-    return gr.update(
-        interactive=bool(analysis_report.strip()),
-        visible=bool(analysis_report.strip()),
-    )
-
+    return gr.update(interactive=bool(analysis_report.strip()), visible=bool(analysis_report.strip()))
 
 # Build the Gradio UI
 demo = gr.Blocks()
 with demo:
-    gr.Markdown("## AI-powered CV Analyzer and Chatbot")
+    gr.Markdown("## AI-powered CV Analyzer, Optimizer, and Chatbot")
 
     with gr.Tab("Chatbot"):
         chat_interface = gr.ChatInterface(
-            respond,
-            chatbot=gr.Chatbot(value=[], label="Chatbot"),
+            lambda message, history: client.chat_completion(
+                messages=[{"role": "user", "content": message}],
+                max_tokens=512,
+            ),
+            chatbot=gr.Chatbot(label="Chatbot"),
             textbox=gr.Textbox(placeholder="Enter your message here...", label="Message"),
-            additional_inputs=[
-                gr.Textbox(
-                    value="You are a friendly Chatbot.", label="System message"
-                ),
-                gr.Slider(
-                    minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"
-                ),
-                gr.Slider(
-                    minimum=0.1, maximum=4.0, value=0.7, step=0.1, label="Temperature"
-                ),
-                gr.Slider(
-                    minimum=0.1, maximum=1.0, value=0.95, step=0.05, label="Top-p (nucleus sampling)"
-                ),
-            ],
         )
 
     with gr.Tab("CV Analyzer"):
         gr.Markdown("### Upload your CV and provide the job description")
         file_input = gr.File(label="Upload CV", file_types=[".pdf", ".docx"])
         job_desc_input = gr.Textbox(label="Job Description", lines=5)
-        extracted_text = gr.Textbox(
-            label="Extracted CV Content", lines=10, interactive=False
-        )
-        analysis_output = gr.Textbox(
-            label="Analysis Report", lines=10, interactive=False
-        )
-        download_pdf_button = gr.Button(
-            "Download Analysis as PDF", visible=False, interactive=False
-        )
+        extracted_text = gr.Textbox(label="Extracted CV Content", lines=10, interactive=False)
+        analysis_output = gr.Textbox(label="Analysis Report", lines=10, interactive=False)
+        download_pdf_button = gr.Button("Download Analysis as PDF", visible=False, interactive=False)
         pdf_file = gr.File(label="Download PDF", interactive=False)
-
         analyze_button = gr.Button("Analyze CV")
-
-        analyze_button.click(
-            parse_cv,
-            inputs=[file_input, job_desc_input],
-            outputs=[extracted_text, analysis_output],
-        ).then(
-            toggle_download_button,
-            inputs=[analysis_output],
-            outputs=[download_pdf_button],
-        )
-
-        download_pdf_button.click(
-            create_pdf_report, inputs=[analysis_output], outputs=[pdf_file]
-        )
+        
+        analyze_button.click(parse_cv, [file_input, job_desc_input], [extracted_text, analysis_output])
+        analyze_button.then(toggle_download_button, [analysis_output], [download_pdf_button])
+        download_pdf_button.click(create_pdf_report, [analysis_output], [pdf_file])
+
+    with gr.Tab("CV Optimizer"):
+        gr.Markdown("### Upload your Resume and Enter Job Title")
+        resume_file = gr.File(label="Upload Resume (PDF or Word)")
+        job_title_input = gr.Textbox(label="Job Title", lines=1)
+        optimized_resume_output = gr.Textbox(label="Optimized Resume", lines=20)
+        optimize_button = gr.Button("Optimize Resume")
+        
+        optimize_button.click(process_resume, [resume_file, job_title_input], [optimized_resume_output])
 
 if __name__ == "__main__":
     demo.queue().launch()