import gradio as gr
from docling.document_converter import DocumentConverter

def convert_document(file, output_format):
    # Load document and convert it using Docling
    converter = DocumentConverter()
    result = converter.convert(file.name)
    
    # Choose the output format
    if output_format == "Markdown":
        converted_text = result.document.export_to_markdown()
    elif output_format == "JSON":
        converted_text = result.document.export_to_json()
    else:
        converted_text = "Unsupported format"

    # Extract metadata
    metadata = {
        "Title": result.document.title,
        "Author": result.document.author,
        "Language": result.document.language,
        "References": result.document.references
    }

    return converted_text, metadata

# Define the Gradio interface
input_file = gr.inputs.File(label="Upload Document")
output_format = gr.inputs.Radio(["Markdown", "JSON"], label="Choose Output Format")
output_text = gr.outputs.Textbox(label="Converted Document")
output_metadata = gr.outputs.JSON(label="Metadata")

app = gr.Interface(
    fn=convert_document,
    inputs=[input_file, output_format],
    outputs=[output_text, output_metadata],
    title="Document Converter with Docling",
    description="Upload a document (PDF, DOCX, or image), choose the output format, and get the converted document text along with metadata.",
)

app.launch()