Update app.py

app.py

@@ -37,7 +37,7 @@ def init_app():
 
 
 
-def predict_roi(machine_price, machine_hashrate, machine_power, machine_efficiency, electricity_rate):
+def predict_roi(machine_price, machine_hashrate, machine_power, machine_efficiency, electricity_rate,machine_release_date):
     """
     Real-time prediction:
     - Uses latest 90 days from blockchain.com
@@ -57,6 +57,28 @@ def predict_roi(machine_price, machine_hashrate, machine_power, machine_efficien
         machine_efficiency = float(machine_efficiency)
         electricity_rate = float(electricity_rate)
 
+        # ----- parse release date -----
+        release_str = None
+        if machine_release_date is not None:
+            release_str = str(machine_release_date).strip()
+            if release_str:
+                try:
+                    # validate format YYYY-MM-DD
+                    datetime.strptime(release_str, "%Y-%m-%d")
+                except ValueError:
+                    error_msg = """
+                    <div style='background: #e74c3c; color: white; padding: 20px; border-radius: 10px;'>
+                        <h3 style='margin: 0;'>❌ Invalid release date</h3>
+                        <p style='margin: 10px 0 0 0;'>
+                            Please enter the machine release date in the format <b>YYYY-MM-DD</b>,
+                            for example <code>2020-05-01</code>.
+                        </p>
+                    </div>
+                    """
+                    return error_msg, error_msg, None, None
+            else:
+                release_str = None  # empty box -> fall back to S19 Pro default
+
         print("User machine specs:")
         print(f"  Price:           {miner_price}")
         print(f"  Hashrate (TH/s): {miner_hashrate}")
@@ -115,6 +137,7 @@ def predict_roi(machine_price, machine_hashrate, machine_power, machine_efficien
             power=machine_power,
             efficiency=machine_efficiency,
             electricity_rate=electricity_rate,
+            release_date=release_str
         )
         print(f"✅ Sequence prepared: {sequence.shape}")
 
@@ -289,6 +312,11 @@ def create_interface():
                     value=30.0,
                     precision=2,
                 )
+                machine_release_date = gr.Textbox(
+                    label="Machine release date (YYYY-MM-DD)",
+                    value="2020-05-01",              # sensible default
+                    placeholder="e.g. 2020-05-01",
+                )
                 electricity_rate = gr.Number(
                     label="Electricity rate (USD/kWh)",
                     value=0.07,   # neutral default
@@ -328,6 +356,7 @@ def create_interface():
                 machine_power,
                 machine_efficiency,
                 electricity_rate,
+                machine_release_date
             ],
             outputs=[miner_info, prediction, conf_plot, price_plot],
         )