app.py

import streamlit as st
from main import upscale_image
import base64

def get_image_download_link(img_path, filename="upscaled_image.png"):
    with open(img_path, 'rb') as f:
        bytes = f.read()
        b64 = base64.b64encode(bytes).decode()
        href = f'<a href="data:file/octet-stream;base64,{b64}" download=\'{filename}\'>Click here to download the upscaled image</a>'
        return href

def app():
    uploaded_file = st.file_uploader("Choose an image...", type="png")
    if uploaded_file is not None:
        with open("uploaded.png", "wb") as f:
            f.write(uploaded_file.getvalue())
        
        upscale_image("uploaded.png")  # This will create "upscaled.png"
        
        st.image("upscaled.png", caption="Upscaled Image", use_column_width=True)
        st.markdown(get_image_download_link("upscaled.png"), unsafe_allow_html=True)

if __name__ == "__main__":
    app()