import gradio as gr
from pdf2docx import Converter
from fpdf import FPDF
from docx import Document
import os


title_and_description = """
# PDF to Word and Word to PDF converter
Created by [@artificialguybr](https://artificialguy.com)

Upload a PDF file to convert to Word or a Word file to convert to PDF.

## Features
- **Easy to use**: Simple interface to upload PDF or Word files and convert to the desired format.
- **High quality**: Converts while maintaining the best possible quality.
- **Efficient processing**: Uses `pdf2docx`, `fpdf` and `docx` for fast and reliable conversions.
- **Unlimited Use**: No file limit. Use unlimited!

Feel free to use in your own documents!
"""


def pdf_to_word(pdf_file):
    docx_filename = pdf_file.name.replace('.pdf', '.docx')
    
    cv = Converter(pdf_file.name)
    cv.convert(docx_filename, multi_processing=True, start=0, end=None)
    cv.close()
    
    return docx_filename

def word_to_pdf(docx_file):
    pdf_filename = docx_file.name.replace('.docx', '.pdf')
    
    document = Document(docx_file.name)
    pdf = FPDF()

    # Add Arial font
    pdf.add_font('Arial', '', 'arial.ttf', uni=True)
    
    pdf.add_page()
    pdf.set_font('Arial', size=12)
    pdf.set_auto_page_break(auto=True, margin=15)

    for paragraph in document.paragraphs:
        try:
            pdf.multi_cell(0, 10, paragraph.text)
        except Exception as e:
            print(f"Error processing paragraph: {e}")

    pdf.output(pdf_filename)
    
    return pdf_filename


with gr.Blocks() as app:
    gr.Markdown(title_and_description)
    
    with gr.Row():
        with gr.Column():
            with gr.Accordion("PDF para Word"):
                pdf_input = gr.File(label="Carregar PDF")
                convert_pdf_to_word = gr.Button("Converter para Word")
                word_output = gr.File(label="Baixar arquivo Word", type="filepath")
                
                convert_pdf_to_word.click(pdf_to_word, inputs=[pdf_input], outputs=[word_output])
                
        with gr.Column():
            with gr.Accordion("Word para PDF"):
                word_input = gr.File(label="Carregar Word")
                convert_word_to_pdf = gr.Button("Converter para PDF")
                pdf_output = gr.File(label="Baixar arquivo PDF", type="filepath")
                
                convert_word_to_pdf.click(word_to_pdf, inputs=[word_input], outputs=[pdf_output])

app.launch()