building app category 4

app.py

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+import streamlit as st
+import os
+from PIL import Image
+from chainguard.blockchain_logger import BlockchainLogger
+
+# Initialize Blockchain Logger
+blockchain_logger = BlockchainLogger()
+
+
+def log_metadata(file_name, tags, album):
+    """Log photo metadata to Chagu blockchain."""
+    metadata = {
+        "file_name": file_name,
+        "tags": tags,
+        "album": album
+    }
+    block_details = blockchain_logger.log_data(metadata)
+    return block_details
+
+
+# Streamlit App Layout
+st.title("Memora: Photo & Video Uploader")
+st.subheader("Securely upload and organize your memories")
+
+# File Upload
+uploaded_files = st.file_uploader(
+    "Upload your photos or videos", accept_multiple_files=True, type=['jpg', 'jpeg', 'png', 'mp4', 'avi']
+)
+
+if uploaded_files:
+    for uploaded_file in uploaded_files:
+        # Display uploaded file
+        st.write(f"File Name: {uploaded_file.name}")
+        if uploaded_file.type.startswith('image'):
+            image = Image.open(uploaded_file)
+            st.image(image, caption=uploaded_file.name, use_column_width=True)
+
+        # Metadata Input
+        album = st.text_input(f"Album for {uploaded_file.name}", value="Default Album")
+        tags = st.text_input(f"Tags for {uploaded_file.name} (comma-separated)", value="")
+
+        # Log Metadata
+        if st.button(f"Log Metadata for {uploaded_file.name}"):
+            metadata = log_metadata(uploaded_file.name, tags.split(','), album)
+            st.write(f"Metadata logged successfully! Block Details: {metadata}")
+
+# Display Blockchain Validation
+if st.button("Validate Blockchain Integrity"):
+    is_valid = blockchain_logger.is_blockchain_valid()
+    st.write("Blockchain Integrity:", "Valid ✅" if is_valid else "Invalid ❌")