Create app.py

app.py

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+import gradio as gr
+from backend import process_pdf
+
+with gr.Blocks() as demo:
+    gr.Markdown("## 📘 AI-Powered Question Generator from Textbook PDFs")
+
+    with gr.Row():
+        pdf_input = gr.File(label="Upload Textbook PDF", file_types=[".pdf"])
+        tag_input = gr.Dropdown(
+            label="Question Type",
+            choices=["short answer", "long answer", "true or false", "multiple choice question"],
+            value="short answer"
+        )
+        difficulty_input = gr.Dropdown(
+            label="Difficulty",
+            choices=["easy", "medium", "hard"],
+            value="medium"
+        )
+        query_input = gr.Textbox(label="Enter your query")
+
+    generate_button = gr.Button("Generate Questions")
+    output_text = gr.Textbox(label="Generated Questions", lines=10)
+
+    generate_button.click(
+        fn=process_pdf,
+        inputs=[pdf_input, tag_input, difficulty_input, query_input],
+        outputs=output_text
+    )
+
+demo.launch()