import gradio as gr
from PIL import Image, ImageEnhance, ImageFilter

def to_black_and_white(input_image, contrast, brightness, sharpness, color, filter_intensity):
    if input_image is None:
        return None
    
    # Adjust contrast
    enhancer = ImageEnhance.Contrast(input_image)
    adjusted_image = enhancer.enhance(contrast)

    # Adjust brightness
    enhancer = ImageEnhance.Brightness(adjusted_image)
    adjusted_image = enhancer.enhance(brightness)

    # Adjust sharpness
    enhancer = ImageEnhance.Sharpness(adjusted_image)
    adjusted_image = enhancer.enhance(sharpness)

    # Adjust color
    enhancer = ImageEnhance.Color(adjusted_image)
    adjusted_image = enhancer.enhance(color)

    # Apply a general filter for intensity
    adjusted_image = adjusted_image.filter(ImageFilter.GaussianBlur(radius=(1 - filter_intensity)))

    # Convert to grayscale
    bw_image = adjusted_image.convert("L")
    return bw_image

with gr.Blocks() as app:
    gr.Markdown("### Black and White Image Maker with Advanced Adjustments")
    
    with gr.Column():
        image_input = gr.Image(type="pil", label="Upload your Image")
        contrast_slider = gr.Slider(minimum=0.5, maximum=3.0, value=1.0, label="Contrast")
        brightness_slider = gr.Slider(minimum=0.5, maximum=3.0, value=1.0, label="Brightness")
        sharpness_slider = gr.Slider(minimum=0.5, maximum=3.0, value=1.0, label="Sharpness")
        color_slider = gr.Slider(minimum=0, maximum=3.0, value=1.0, label="Color Balance")
        filter_slider = gr.Slider(minimum=0, maximum=1.0, value=1.0, label="Filter Intensity")
        apply_button = gr.Button("Click to Apply")
        image_output = gr.Image(type="pil", label="Black and White Image")
        
        apply_button.click(
            to_black_and_white, 
            inputs=[image_input, contrast_slider, brightness_slider, sharpness_slider, color_slider, filter_slider], 
            outputs=image_output
        )

app.launch()