import gradio as gr
from PIL import Image
from datetime import datetime
from ocr_engine import extract_weight

def process_image(image):
    try:
        if image is None:
            return "No image provided", "No timestamp", None
        weight = extract_weight(image)
        now = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        return f"{weight} grams", now, image
    except Exception as e:
        return f"Error: {str(e)}", "Error", None

with gr.Blocks() as demo:
    gr.Markdown("## 📷 Auto Weight Logger — OCR-Based Smart Scale Reader")
    gr.Markdown("Upload a photo of a digital scale. The app will detect and log the weight.")

    image_input = gr.Image(type="pil", label="📁 Upload or Capture Digital Scale Image")

    detect_btn = gr.Button("🚀 Detect Weight")

    weight_out = gr.Textbox(label="📦 Detected Weight")
    time_out = gr.Textbox(label="⏱️ Captured At (IST)")
    snapshot = gr.Image(label="🖼️ Snapshot Preview")

    detect_btn.click(fn=process_image, inputs=image_input, outputs=[weight_out, time_out, snapshot])

demo.launch()