chore: update the base version

backend/main.py

@@ -5,8 +5,7 @@ import json
 import csv
 import io
 import time
-from datetime import datetime, timedelta, timezone, time as dt_time
+from datetime import datetime, timedelta
-from zoneinfo import ZoneInfo 
 from flask import Flask, jsonify, request, Response
 from flask_socketio import SocketIO, join_room
 from flask_cors import CORS
@@ -56,8 +55,6 @@ app.config['SECRET_KEY'] = os.getenv("SECRET_KEY", "a_very_secret_key")
 db.init_app(app)
 socketio = SocketIO(app, cors_allowed_origins="*")
 
-IST = ZoneInfo("Asia/Kolkata")
-
 # --- User Loader for Flask-Login ---
 @login_manager.user_loader
 def load_user(user_id):
@@ -286,29 +283,25 @@ def get_stations():
 @app.route('/api/stations/daily-stats', methods=['GET'])
 def get_all_station_stats():
     """
-    Calculates the swap statistics for the current calendar day in the IST timezone.
+    Calculates the swap statistics for today for all stations.
     """
     try:
-        # Get the current time and date in your timezone (IST is defined globally)
+        # --- CHANGE THESE TWO LINES ---
-        now_ist = datetime.now(IST)
+        today_start = datetime.combine(datetime.utcnow().date(), time.min)
-        today_ist = now_ist.date()
+        today_end = datetime.combine(datetime.utcnow().date(), time.max)
 
-        # Calculate the precise start and end of that day
+        # This is an efficient query that groups by station_id and counts events in one go
-        start_of_day_ist = datetime.combine(today_ist, dt_time.min, tzinfo=IST)
-        end_of_day_ist = datetime.combine(today_ist, dt_time.max, tzinfo=IST)
-        
-        # --- The rest of the query uses this new date range ---
         stats = db.session.query(
             MqttLog.station_id,
-            func.count(case((MqttLog.payload['eventType'].astext == 'EVENT_SWAP_START', 1))).label('total_starts'),
+            func.count(case((MqttLog.payload['eventType'] == 'EVENT_SWAP_START', 1))).label('total_starts'),
-            func.count(case((MqttLog.payload['eventType'].astext == 'EVENT_SWAP_ENDED', 1))).label('completed'),
+            func.count(case((MqttLog.payload['eventType'] == 'EVENT_SWAP_ENDED', 1))).label('completed'),
-            func.count(case((MqttLog.payload['eventType'].astext == 'EVENT_SWAP_ABORTED', 1))).label('aborted')
+            func.count(case((MqttLog.payload['eventType'] == 'EVENT_SWAP_ABORTED', 1))).label('aborted')
         ).filter(
             MqttLog.topic_type == 'EVENTS',
-            # Use the new timezone-aware date range
+            MqttLog.timestamp.between(today_start, today_end)
-            MqttLog.timestamp.between(start_of_day_ist, end_of_day_ist)
         ).group_by(MqttLog.station_id).all()
 
+        # Convert the list of tuples into a dictionary for easy lookup
         stats_dict = {
             station_id: {
                 "total_starts": total_starts,

frontend/js/station_selection.js

@@ -117,10 +117,7 @@ document.addEventListener('DOMContentLoaded', () => {
     //-- NEW: Fetch and apply daily stats to each card ---
     const fetchAndApplyStats = async () => {
         try {
-            const response = await fetch(`${API_BASE}/stations/daily-stats`, {
+            const response = await fetch(`${API_BASE}/stations/daily-stats`);
-                method: 'GET',
-                credentials: 'include' // <-- ADD THIS LINE
-            });
             if (!response.ok) return; // Fail silently if stats aren't available
             const stats = await response.json();
 
@@ -161,10 +158,7 @@ document.addEventListener('DOMContentLoaded', () => {
             }
 
             try {
-                const response = await fetch(`${API_BASE}/stations/${stationId}`, {
+                const response = await fetch(`${API_BASE}/stations/${stationId}`, { method: 'DELETE' });
-                    method: 'DELETE',
-                    credentials: 'include' // <-- ADD THIS LINE
-                });
                 if (response.ok) {
                     alert(`Station "${stationName}" removed successfully.`);
                     allStations = []; // Force a full refresh on next poll
@@ -181,61 +175,26 @@ document.addEventListener('DOMContentLoaded', () => {
     });
 
     // --- DATA FETCHING & POLLING ---
-    // const loadAndPollStations = async () => {
-    //     try {
-    //         const response = await fetch(`${API_BASE}/stations`, {
-    //             method: 'GET',
-    //             credentials: 'include' // <-- ADD THIS LINE
-    //         });
-    //         if (!response.ok) throw new Error('Failed to fetch stations');
-            
-    //         const newStationList = await response.json();
-            
-    //         // If the number of stations has changed, we must do a full re-render.
-    //         if (newStationList.length !== allStations.length) {
-    //             allStations = newStationList;
-    //             renderStations(allStations);
-    //         } else {
-    //         // Otherwise, we can do a more efficient status-only update.
-    //             allStations = newStationList;
-    //             updateStationStatuses(allStations);
-    //             fetchAndApplyStats(); // Fetch and update daily stats
-    //         }
-    //     } catch (error) {
-    //         console.error(error);
-    //         stationCountEl.textContent = 'Could not load stations. Is the backend running?';
-    //         if (pollingInterval) clearInterval(pollingInterval);
-    //     }
-    // };
-
     const loadAndPollStations = async () => {
         try {
-            const response = await fetch(`${API_BASE}/stations`, { credentials: 'include' });
+            const response = await fetch(`${API_BASE}/stations`);
-            if (response.status === 401) {
-                localStorage.clear();
-                window.location.href = 'index.html';
-                return;
-            }
             if (!response.ok) throw new Error('Failed to fetch stations');
             
             const newStationList = await response.json();
             
+            // If the number of stations has changed, we must do a full re-render.
             if (newStationList.length !== allStations.length) {
                 allStations = newStationList;
                 renderStations(allStations);
             } else {
+            // Otherwise, we can do a more efficient status-only update.
                 allStations = newStationList;
-                // A more efficient status-only update could go here later
+                updateStationStatuses(allStations);
-                renderStations(allStations); // Re-render to update statuses
+                fetchAndApplyStats(); // Fetch and update daily stats
             }
-
-            // --- THIS IS THE FIX ---
-            // Call this AFTER the if/else, so it always runs on a successful fetch.
-            fetchAndApplyStats();
-
         } catch (error) {
             console.error(error);
-            if (stationCountEl) stationCountEl.textContent = 'Could not load stations. Is the backend running?';
+            stationCountEl.textContent = 'Could not load stations. Is the backend running?';
             if (pollingInterval) clearInterval(pollingInterval);
         }
     };