From 33b527302ddfbd84d417afd8c62f445150cefd9d Mon Sep 17 00:00:00 2001
From: gael <gael@qoherent.ai>
Date: Thu, 25 Sep 2025 11:28:00 -0400
Subject: [PATCH] Update gain_viz/app.py

---
 gain_viz/app.py | 52 +++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/gain_viz/app.py b/gain_viz/app.py
index 87ed0cc..2576850 100644
--- a/gain_viz/app.py
+++ b/gain_viz/app.py
@@ -20,6 +20,13 @@ usrp_rx_gain = 30
 scm_tx_gain = 30
 scm_rx_gain = 30
 
+# Global variables for plot settings
+sample_rate = 23.04e6  # Hz
+window_ms = 20
+center_freq = 3.415e9
+NFFT = 1024
+tcp_port = 5556
+
 # ----------------- Serial / SCM -----------------
 def connect_serial(port, baudrate=115200, timeout=1):
     """Connect to a serial port with even parity."""
@@ -112,13 +119,9 @@ def zmq_subscriber(host, port):
 
 # ----------------- Plot Generation -----------------
 def generate_spectrum_plot():
-    socket = zmq_subscriber("localhost", 5556)
-
-    sample_rate = 23.04e6  # Hz
-    window_ms = 20
-    center_freq = 3.415e9
+    socket = zmq_subscriber("localhost", tcp_port)
+    global sample_rate, window_ms, center_freq, NFFT
     window_samples = int(sample_rate * window_ms / 1000)
-    NFFT = 1024
     noverlap = 512
     cmap = plt.get_cmap('twilight')
 
@@ -216,6 +219,43 @@ def get_gains():
         "scm_rx_gain": scm_rx_gain
     })
 
+@app.route('/update_params', methods=['POST'])
+def update_params():
+    global sample_rate, window_ms, center_freq, NFFT
+    try:
+        # Get parameters from form data
+        center_freq = request.form.get('center_freq', type=float)
+        sample_rate = request.form.get('sample_rate', type=float)
+        NFFT = request.form.get('fft_size', type=int)
+        window_ms = request.form.get('window_ms', type=float)
+        
+        
+    
+        
+        # Save to config file if needed
+        save_config()
+        
+        return jsonify({
+            'status': 'success',
+            'message': 'Parameters updated successfully'
+        })
+    except Exception as e:
+        return jsonify({
+            'status': 'error',
+            'message': str(e)
+        }), 500
+
+# Add to your config handling
+def save_config():
+    config = {
+        'center_freq': center_freq,
+        'sample_rate': sample_rate,
+        'fft_size': NFFT,
+        'window_ms': window_ms
+    }
+    with open('/opt/gain-viz/config.json', 'w') as f:
+        json.dump(config, f)
+
 # ----------------- Main -----------------
 def main():
     # Ensure placeholder image exists