Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,188 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
+import requests
+import json
+from typing import Optional
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+# Configure Streamlit page
+st.set_page_config(
+    page_title="Customer Management System",
+    layout="wide"
+)
+
+# FastAPI base URL
+BASE_URL = "https://ritesh1035-cms-apis.hf.space"
+
+# Helper functions
+def make_request(method, endpoint, data=None):
+    """Make HTTP request to FastAPI backend"""
+    url = f"{BASE_URL}{endpoint}"
+    try:
+        if method == "GET":
+            response = requests.get(url)
+        elif method == "POST":
+            response = requests.post(url, json=data)
+        elif method == "PUT":
+            response = requests.put(url, json=data)
+        elif method == "DELETE":
+            response = requests.delete(url)
+        
+        return response
+    except requests.exceptions.ConnectionError:
+        st.error("Cannot connect to FastAPI server. Make sure it's running on http://localhost:8000")
+        return None
+
+# Main title
+st.title("Customer Management System")
+
+# Sidebar for operation selection
+st.sidebar.header("Choose An Operations")
+operation = st.sidebar.selectbox(
+    "Select Operation:",
+    ["View All Customers", "Add Customer", "Update Customer", "Delete Customer"]
+)
+
+# Main content area
+if operation == "View All Customers":
+    st.header("Customer List")
+    
+    if st.button("Refresh List"):
+        response = make_request("GET", "/Customer")
+        if response and response.status_code == 200:
+            customers = response.json()
+            if customers:
+                st.success(f"Found {len(customers)} customers")
+                
+                # Simple table display
+                for customer in customers:
+                    st.write("---")
+                    col1, col2 = st.columns(2)
+                    with col1:
+                        st.write(f"**ID:** {customer['id']}")
+                        st.write(f"**Name:** {customer['name']}")
+                        st.write(f"**Email:** {customer['email']}")
+                    with col2:
+                        st.write(f"**Phone:** {customer.get('phone', 'Not provided')}")
+                        st.write(f"**Address:** {customer.get('address', 'Not provided')}")
+            else:
+                st.info("No customers found")
+        elif response:
+            st.error(f"Failed to fetch customers: {response.status_code}")
+
+elif operation == "Add Customer":
+    st.header("Add New Customer")
+    
+    with st.form("add_customer"):
+        customer_name = st.text_input("Name (required)")
+        customer_email = st.text_input("Email (required)")
+        customer_phone = st.text_input("Phone (optional)")
+        customer_address = st.text_area("Address (optional)")
+        
+        if st.form_submit_button("Add Customer"):
+            if not customer_name or not customer_email:
+                st.error("Name and Email are required")
+            else:
+                # Auto-generate ID based on existing customers count
+                try:
+                    existing_customers = requests.get("http://localhost:8000/Customer").json()
+                    customer_id = len(existing_customers) + 1
+                except:
+                    customer_id = 1
+                
+                customer_data = {
+                    "id": customer_id,
+                    "name": customer_name,
+                    "email": customer_email,
+                    "phone": customer_phone if customer_phone else None,
+                    "address": customer_address if customer_address else None
+                }
+                
+                response = make_request("POST", "/Customer", customer_data)
+                if response and response.status_code == 200:
+                    st.success(f"Customer '{customer_name}' added successfully")
+                elif response:
+                    st.error(f"Failed to add customer: {response.status_code}")
+
+elif operation == "Update Customer":
+    st.header("Update Customer")
+    
+    update_id = st.number_input("Customer ID to Update", min_value=1, step=1)
+    
+    if st.button("Load Customer"):
+        response = make_request("GET", "/Customer")
+        if response and response.status_code == 200:
+            customers = response.json()
+            customer = next((c for c in customers if c['id'] == update_id), None)
+            
+            if customer:
+                st.session_state.update_customer = customer
+                st.success(f"Loaded: {customer['name']}")
+            else:
+                st.error(f"Customer with ID {update_id} not found")
+    
+    if 'update_customer' in st.session_state:
+        customer = st.session_state.update_customer
+        
+        with st.form("update_customer_form"):
+            new_name = st.text_input("Name", value=customer['name'])
+            new_email = st.text_input("Email", value=customer['email'])
+            new_phone = st.text_input("Phone", value=customer.get('phone', ''))
+            new_address = st.text_area("Address", value=customer.get('address', ''))
+            
+            if st.form_submit_button("Update Customer"):
+                if not new_name or not new_email:
+                    st.error("Name and Email are required")
+                else:
+                    updated_data = {
+                        "id": update_id,
+                        "name": new_name,
+                        "email": new_email,
+                        "phone": new_phone if new_phone else None,
+                        "address": new_address if new_address else None
+                    }
+                    
+                    response = make_request("PUT", f"/Customer/{update_id}", updated_data)
+                    if response and response.status_code == 200:
+                        st.success(f"Customer updated successfully")
+                        del st.session_state.update_customer
+                        st.rerun()
+                    elif response:
+                        st.error(f"Failed to update customer: {response.status_code}")
+
+elif operation == "Delete Customer":
+    st.header("Delete Customer")
+    
+    st.warning("Warning: This action cannot be undone")
+    
+    delete_id = st.number_input("Customer ID to Delete", min_value=1, step=1)
+    
+    if st.button("Preview Customer"):
+        response = make_request("GET", "/Customer")
+        if response and response.status_code == 200:
+            customers = response.json()
+            customer = next((c for c in customers if c['id'] == delete_id), None)
+            
+            if customer:
+                st.info(f"Customer to delete: {customer['name']} ({customer['email']})")
+                st.session_state.delete_customer = customer
+            else:
+                st.error(f"Customer with ID {delete_id} not found")
+    
+    if 'delete_customer' in st.session_state:
+        customer = st.session_state.delete_customer
+        st.error(f"Are you sure you want to delete {customer['name']}?")
+        
+        col1, col2 = st.columns(2)
+        with col1:
+            if st.button("Yes, Delete"):
+                response = make_request("DELETE", f"/Customer/{delete_id}")
+                if response and response.status_code == 200:
+                    st.success(f"Customer deleted successfully")
+                    del st.session_state.delete_customer
+                    st.rerun()
+                elif response:
+                    st.error(f"Failed to delete customer: {response.status_code}")
+        
+        with col2:
+            if st.button("Cancel"):
+                del st.session_state.delete_customer
+                st.rerun()