import qrcode
from PIL import Image
import base64
import gradio as gr

# Function to process text and generate QR code
def txt2qrcode(text: str):
    # Encode the text as URL-safe base64
    encoded_text = base64.b64encode(text.encode('utf-8')).decode('utf-8')  # URL encoding the input text

    # Construct the final URL to embed into the QR code
    final_url = f"https://flowly-ai.vercel.app/tools/qr/pro-qr-codes/read/{encoded_text}"

    # Create the QR code
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_L,
        box_size=10,
        border=4,
    )
    qr.add_data(final_url)
    qr.make(fit=True)

    # Create an image for the QR code
    img_qr = qr.make_image(fill='black', back_color='white')

    # Optionally, add a logo to the center of the QR code
    logo = Image.open("logo.png")  # Replace with your logo path
    logo = logo.convert("RGBA")
    
    qr_width, qr_height = img_qr.size
    logo_width, logo_height = logo.size
    
    # Resize logo to fit in the QR code
    logo = logo.resize((qr_width // 5, qr_height // 5))  # Resize to be 20% of the QR code size

    # Calculate position to place logo at the center
    logo_position = ((qr_width - logo_width) // 2, (qr_height - logo_height) // 2)

    # Paste the logo onto the QR code image
    img_qr.paste(logo, logo_position, logo)
    
    # Save the QR code image
    output_path = "qr_code_with_logo.png"
    img_qr.save(output_path)

    return output_path

# Function to process a file (e.g., text file) and generate QR code
def file2qrcode(file: str):
    # Read the content of the file
    with open(file, 'r') as f:
        text = f.read()
    
    # Generate QR code with the file's text content
    return txt2qrcode(text)

# Gradio Interface for the QR code generation
def qr_code_interface(text: str):
    result = txt2qrcode(text)
    return result

def qr_code_file_interface(file: str):
    result = file2qrcode(file)
    return result

# Create a Gradio interface
interface = gr.Interface(
    fn=qr_code_interface,
    inputs=gr.Textbox(label="Enter Text to Encode", placeholder="Enter your text here..."),
    outputs=gr.Image(type="filepath", label="Generated QR Code"),
    description="Generate a QR Code from your text. The input text will be URL encoded and embedded into a QR code pointing to a specific URL.",
    css="footer {visibility: hidden}"
)

# Create a second Gradio interface for file input
file_interface = gr.Interface(
    fn=qr_code_file_interface,
    inputs=gr.File(label="Upload Text File"),
    outputs=gr.Image(type="filepath", label="Generated QR Code from File"),
    description="Upload a text file, and generate a QR code based on the file's content."
)

# Launch the Gradio apps
interface.launch(share=True)
file_interface.launch(share=True)