Update app.py

app.py

@@ -15,13 +15,12 @@ class Blockchain:
     def create_block(self, votes, previous_hash):
         block = {
             "index": len(self.chain) + 1,
-            "timestamp": time.time(),
+            "timestamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),
             "votes": votes,
             "previous_hash": previous_hash,
-            "hash": self.hash_block(votes, previous_hash)
+            "hash": self.hash_block(votes, previous_hash),
         }
-        ipfs_hash = self.upload_to_ipfs(block)
-        block["ipfs_hash"] = ipfs_hash  # Store IPFS hash
+        block["ipfs_hash"] = self.upload_to_ipfs(block)
         self.chain.append(block)
         self.save_data()
         return block
@@ -38,11 +37,10 @@ class Blockchain:
         try:
             response = requests.post(IPFS_API_URL, headers=IPFS_HEADERS, json={"pinataContent": block})
             if response.status_code == 200:
-                return response.json()["IpfsHash"]
-            else:
-                return "Error uploading to IPFS"
+                return response.json().get("IpfsHash", "N/A")
         except Exception as e:
-            return str(e)
+            return f"IPFS Error: {str(e)}"
+        return "Upload Failed"
 
     def save_data(self):
         with open("votes.json", "w") as f:
@@ -62,21 +60,40 @@ class Blockchain:
 blockchain = Blockchain()
 
 # Streamlit UI
-st.title("🗳 Blockchain-Based Voting System (IPFS-Enabled)")
-
-# Voter ID for uniqueness
-voter_id = st.text_input("Enter your Voter ID (Unique & Unchangeable)", max_chars=10)
-
-# Candidates
-candidates = ["bjp", "ss", "Ncp","nota"]
-selected_candidate = st.selectbox("Select a candidate to vote for:", candidates)
+st.set_page_config(page_title="Blockchain Voting", page_icon="🗳", layout="wide")
+
+# Apply CSS styling
+st.markdown(
+    """
+    <style>
+        .stApp {background-color: #f5f7fa;}
+        h1 {color: #2b6cb0; text-align: center; font-size: 40px;}
+        .vote-container {text-align: center; padding: 10px;}
+        .stButton>button {width: 100%; background-color: #2b6cb0; color: white; font-size: 16px; padding: 10px;}
+        .stButton>button:hover {background-color: #1e4e79;}
+        .results {background-color: white; padding: 15px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);}
+    </style>
+    """,
+    unsafe_allow_html=True,
+)
+
+st.markdown("<h1>🗳 Secure Blockchain-Based Voting System</h1>", unsafe_allow_html=True)
+
+# Voter ID input
+st.sidebar.header("Voter Authentication")
+voter_id = st.sidebar.text_input("🔑 Enter your Unique Voter ID:", max_chars=10)
+
+# Candidate Selection
+st.sidebar.header("Vote Now")
+candidates = ["BJP", "Shiv Sena", "NCP", "NOTA"]
+selected_candidate = st.sidebar.radio("Select your candidate:", candidates)
 
 # Voting Button
-if st.button("Vote"):
+if st.sidebar.button("✅ Submit Vote"):
     if not voter_id:
-        st.warning("⚠ Please enter a valid Voter ID!")
+        st.sidebar.warning("⚠ Please enter a valid Voter ID!")
     elif voter_id in blockchain.voters:
-        st.error("❌ You have already voted!")
+        st.sidebar.error("❌ You have already voted!")
     else:
         last_block = blockchain.get_latest_block()
         new_votes = last_block["votes"].copy() if last_block else {}
@@ -85,22 +102,23 @@ if st.button("Vote"):
         blockchain.create_block(new_votes, last_block["hash"] if last_block else "0")
         blockchain.voters.add(voter_id)
         blockchain.save_data()
-        
-        st.success(f"✅ Vote cast for {selected_candidate}!")
+
+        st.sidebar.success(f"✅ Vote cast for {selected_candidate}!")
 
 # Display Vote Count
-st.subheader("🔢 Live Vote Count")
+st.markdown("<h2 style='text-align: center;'>📊 Live Vote Count</h2>", unsafe_allow_html=True)
 latest_block = blockchain.get_latest_block()
-if latest_block:
-    for candidate, votes in latest_block["votes"].items():
-        st.write(f"✅ {candidate}: {votes} votes")
 
-# Show Blockchain
-if st.checkbox("Show Blockchain Data"):
+if latest_block:
+    with st.container():
+        col1, col2, col3, col4 = st.columns(4)
+        vote_data = latest_block["votes"]
+        col1.metric(label="🔹 BJP", value=vote_data.get("BJP", 0))
+        col2.metric(label="🔹 Shiv Sena", value=vote_data.get("Shiv Sena", 0))
+        col3.metric(label="🔹 NCP", value=vote_data.get("NCP", 0))
+        col4.metric(label="🔹 NOTA", value=vote_data.get("NOTA", 0))
+
+# Show Blockchain Data
+if st.checkbox("📜 View Blockchain Data"):
     st.json(blockchain.chain)
 
-# Show IPFS Hashes for each Block
-st.subheader("🔗 IPFS Storage Links")
-if latest_block:
-    for block in blockchain.chain:
-        st.write(f"🔗 Block {block['index']} stored on IPFS: [View](https://gateway.pinata.cloud/ipfs/{block.get('ipfs_hash', 'N/A')})")