Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,2 +1,68 @@
-import streamlit as st 
-st.write("Hello")
+import streamlit as st
+
+# Set a centered layout for a cleaner, minimal look
+st.set_page_config(layout="centered")
+
+# --- Start of User-Requested Content ---
+st.write("Hello")
+# --- End of User-Requested Content ---
+
+# --- Payment Variables (MUST UPDATE) ---
+# !!! CRITICAL 1: Replace this placeholder with your actual PayPal email or Merchant ID. !!!
+PAYPAL_BUSINESS_EMAIL = "YOUR_PAYPAL_EMAIL@example.com"
+CURRENCY_CODE = "USD"
+
+# !!! CRITICAL 2: URL to redirect the user to after they successfully complete payment on PayPal.
+SUCCESS_URL = "https://www.yourdomain.com/payment-thank-you"
+
+# --- Fixed Price Configuration ---
+FIXED_AMOUNT = 25.00
+FIXED_ITEM_NAME = "Basic Service Payment"
+ITEM_NAME = FIXED_ITEM_NAME
+AMOUNT = FIXED_AMOUNT
+# --- End of Variables ---
+
+st.markdown("---")
+st.subheader(f"Secure Payment for {FIXED_ITEM_NAME}")
+st.write(f"Click below to pay the fixed amount of **${AMOUNT:.2f}**.")
+
+# Generate the payment link with success redirection (key is '&return={SUCCESS_URL}')
+PAYMENT_LINK = (
+    f"https://www.paypal.com/cgi-bin/webscr?"
+    f"cmd=_xclick&"
+    f"business={PAYPAL_BUSINESS_EMAIL}&"
+    f"item_name={ITEM_NAME}&"
+    f"amount={AMOUNT:.2f}&"
+    f"currency_code={CURRENCY_CODE}&"
+    f"return={SUCCESS_URL}" 
+)
+
+# HTML for a clean, functional PayPal Button
+paypal_html = f"""
+<div style="margin-top: 20px;">
+    <a href="{PAYMENT_LINK}" target="_blank" style="
+        display: inline-block;
+        padding: 10px 20px;
+        font-size: 16px;
+        font-weight: bold;
+        color: white !important;
+        background-color: #0070BA; 
+        border-radius: 5px;
+        text-align: center;
+        text-decoration: none;
+        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+        transition: background-color 0.1s;
+    " onmouseover="this.style.backgroundColor='#008CDB'" onmouseout="this.style.backgroundColor='#0070BA'">
+        Pay Now (${AMOUNT:.2f}) 
+    </a>
+</div>
+"""
+
+# Inject the HTML into the Streamlit app
+st.markdown(paypal_html, unsafe_allow_html=True)
+
+st.markdown("---")
+st.info(
+    "The payment link is fully configured to redirect the user to the URL specified in the `SUCCESS_URL` variable after payment completion."
+)
+