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

# Function to encode text or file content in base64 and generate a QR code
def generate_qr(data: str, error_correction: int = qrcode.constants.ERROR_CORRECT_L, box_size: int = 10, border: int = 4, fill_color: str = "black", back_color: str = "white", logo_path: str = None):
    encoded_data = base64.b64encode(data.encode('utf-8')).decode('utf-8')
    final_url = f"https://flowly-ai.vercel.app/tools/qr/qr-code/read/{encoded_data}"

    qr = qrcode.QRCode(
        version=1,
        error_correction=error_correction,
        box_size=box_size,
        border=border,
    )
    qr.add_data(final_url)
    qr.make(fit=True)
    img_qr = qr.make_image(fill_color=fill_color, back_color=back_color)

    if logo_path:
        try:
            logo = Image.open(logo_path).convert("RGBA")
            qr_width, qr_height = img_qr.size
            logo = logo.resize((qr_width // 5, qr_height // 5))
            logo_position = ((qr_width - logo.size[0]) // 2, (qr_height - logo.size[1]) // 2)
            img_qr.paste(logo, logo_position, logo)
        except Exception as e:
            print(f"Error loading logo: {e}")

    output_path = "qr_code.png"
    img_qr.save(output_path)
    return output_path

# Function to handle text or file input
def qr_code_interface(input_type, text, file, error_correction, box_size, border, fill_color, back_color, logo):
    logo_path = logo.name if logo else None
    
    if input_type == "Text" and text:
        return generate_qr(text, error_correction, box_size, border, fill_color, back_color, logo_path)
    elif input_type == "File" and file:
        with open(file.name, 'r') as f:
            file_data = f.read()
        return generate_qr(file_data, error_correction, box_size, border, fill_color, back_color, logo_path)
    else:
        return None

# Gradio Interface
interface = gr.Interface(
    fn=qr_code_interface,
    inputs=[
        gr.Radio(["Text", "File"], label="Input Type", value="Text"),
        gr.Textbox(label="Enter Text", visible=True),
        gr.File(label="Upload Text File", type="file", visible=False),
        gr.Slider(0, 3, 1, label="Error Correction", value=0),
        gr.Slider(1, 20, 1, label="Box Size", value=10),
        gr.Slider(1, 10, 1, label="Border Size", value=4),
        gr.ColorPicker(label="QR Fill Color", value="#000000"),
        gr.ColorPicker(label="QR Background Color", value="#FFFFFF"),
        gr.File(label="Upload Logo (Optional)")
    ],
    outputs=gr.Image(type="filepath", label="Generated QR Code"),
    description="Generate a QR Code from either text or file with custom styles, colors, and an optional logo."
)

# Launch the app
interface.launch(share=True)