Create app.py

app.py

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+import gradio as gr
+from datetime import datetime
+import pytz
+from ocr_engine import extract_weight_from_image
+from PIL import Image
+import io
+import base64
+from simple_salesforce import Salesforce
+import logging
+
+# Set up logging
+logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
+
+# Salesforce configuration (replace with your credentials)
+SF_USERNAME = "your_salesforce_username"
+SF_PASSWORD = "your_salesforce_password"
+SF_SECURITY_TOKEN = "your_salesforce_security_token"
+SF_DOMAIN = "login"  # or "test" for sandbox
+
+def connect_to_salesforce():
+    try:
+        sf = Salesforce(username=SF_USERNAME, password=SF_PASSWORD, security_token=SF_SECURITY_TOKEN, domain=SF_DOMAIN)
+        logging.info("Connected to Salesforce successfully")
+        return sf
+    except Exception as e:
+        logging.error(f"Salesforce connection failed: {str(e)}")
+        return None
+
+def resize_image(img, max_size_mb=5):
+    """Resize image to ensure size < 5MB while preserving quality."""
+    try:
+        img_bytes = io.BytesIO()
+        img.save(img_bytes, format="PNG")
+        size_mb = len(img_bytes.getvalue()) / (1024 * 1024)
+        if size_mb <= max_size_mb:
+            return img, img_bytes.getvalue()
+
+        scale = 0.9
+        while size_mb > max_size_mb:
+            w, h = img.size
+            img = img.resize((int(w * scale), int(h * scale)), Image.Resampling.LANCZOS)
+            img_bytes = io.BytesIO()
+            img.save(img_bytes, format="PNG")
+            size_mb = len(img_bytes.getvalue()) / (1024 * 1024)
+            scale *= 0.9
+        logging.info(f"Resized image to {size_mb:.2f} MB")
+        return img, img_bytes.getvalue()
+    except Exception as e:
+        logging.error(f"Image resizing failed: {str(e)}")
+        return img, None
+
+def process_image(img):
+    if img is None:
+        return "No image uploaded", None, None, None, gr.update(visible=False), gr.update(visible=False)
+
+    ist_time = datetime.now(pytz.timezone("Asia/Kolkata")).strftime("%d-%m-%Y %I:%M:%S %p")
+    img, img_bytes = resize_image(img)
+    weight, confidence = extract_weight_from_image(img)
+
+    if weight == "Not detected" or confidence < 70:
+        return f"{weight} (Confidence: {confidence:.2f}%)", ist_time, img, None, gr.update(visible=True), gr.update(visible=False)
+
+    img_buffer = io.BytesIO(img_bytes)
+    img_base64 = base64.b64encode(img_buffer.getvalue()).decode()
+    return f"{weight} kg (Confidence: {confidence:.2f}%)", ist_time, img, img_base64, gr.update(visible=True), gr.update(visible=True)
+
+def save_to_salesforce(weight_text, img_base64):
+    try:
+        sf = connect_to_salesforce()
+        if sf is None:
+            return "Failed to connect to Salesforce"
+
+        weight = float(weight_text.split(" ")[0])
+        ist_time = datetime.now(pytz.timezone("Asia/Kolkata")).strftime("%Y-%m-%d %H:%M:%S")
+
+        record = {
+            "Name": f"Weight_Log_{ist_time}",
+            "Weight__c": weight,
+            "Timestamp__c": ist_time,
+            "Image__c": img_base64
+        }
+        result = sf.Weight_Log__c.create(record)
+        logging.info(f"Salesforce record created: {result}")
+        return "Successfully saved to Salesforce"
+    except Exception as e:
+        logging.error(f"Salesforce save failed: {str(e)}")
+        return f"Failed to save to Salesforce: {str(e)}"
+
+with gr.Blocks(title="\u2696\ufe0f Auto Weight Logger") as demo:
+    gr.Markdown("## \u2696\ufe0f Auto Weight Logger")
+    gr.Markdown("\ud83d\udcf7 Upload or capture an image of a digital weight scale (max 5MB).")
+
+    with gr.Row():
+        image_input = gr.Image(type="pil", label="Upload / Capture Image")
+        output_weight = gr.Textbox(label="\u2696\ufe0f Detected Weight (in kg)")
+
+    with gr.Row():
+        timestamp = gr.Textbox(label="\ud83d\udd52 Captured At (IST)")
+        snapshot = gr.Image(label="\ud83d\udcf8 Snapshot Image")
+
+    with gr.Row():
+        confirm_button = gr.Button("\u2705 Confirm and Save to Salesforce", visible=False)
+        status = gr.Textbox(label="Save Status", visible=False)
+
+    submit = gr.Button("\ud83d\udd0d Detect Weight")
+    submit.click(
+        fn=process_image,
+        inputs=image_input,
+        outputs=[output_weight, timestamp, snapshot, gr.State(), confirm_button, status]
+    )
+    confirm_button.click(
+        fn=save_to_salesforce,
+        inputs=[output_weight, gr.State()],
+        outputs=status
+    )
+
+    gr.Markdown("""
+    ### Instructions
+    - Upload a clear, well-lit image of a digital weight scale display.
+    - Ensure the image is < 5MB (automatically resized if larger).
+    - Review the detected weight and click 'Confirm and Save to Salesforce' to log the data.
+    - Works on desktop and mobile browsers.
+    """)
+
+demo.launch()