code hygiene

app.py

@@ -37,8 +37,8 @@ app.config['TEMPLATES_AUTO_RELOAD'] = os.environ.get('TEMPLATES_AUTO_RELOAD')
 
 # Session configuration for "Remember Me" functionality
 app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(days=30)
-app.config['SESSION_COOKIE_SECURE'] = os.environ.get('SESSION_COOKIE_SECURE')   # Set to True if using HTTPS
+app.config['SESSION_COOKIE_SECURE'] = os.environ.get('SESSION_COOKIE_SECURE', 'false').lower() == 'true'   # Set to True if using HTTPS
-app.config['SESSION_COOKIE_HTTPONLY'] = os.environ.get('SESSION_COOKIE_HTTPONLY')
+app.config['SESSION_COOKIE_HTTPONLY'] = os.environ.get('SESSION_COOKIE_HTTPONLY', 'true').lower() == 'true'
 app.config['SESSION_COOKIE_SAMESITE'] = os.environ.get('SESSION_COOKIE_SAMESITE')
 
 # Photo Verification Configuration
@@ -110,8 +110,8 @@ def create_performance_indexes():
         print(f"❌ Error creating performance indexes: {e}")
         db.session.rollback()
         logger_handler.log_database_error(
-            error_type="index_creation_error",
+            'index_creation_error',
-            error_message=str(e),
+            e,
             query="CREATE INDEX statements"
         )
 
@@ -4596,40 +4596,6 @@ def deactivate_qr_code(qr_id):
             'message': 'Error deactivating QR code. Please try again.'
         }), 500
 
-@app.route('/qr-codes/<int:qr_id>/toggle-status', methods=['POST'])
-@admin_required
-def toggle_qr_status_api(qr_id):
-    """Toggle QR code active/inactive status - Enhanced JSON API"""
-    try:
-        qr_code = QRCode.query.get_or_404(qr_id)
-        qr_code.active_status = not qr_code.active_status
-        db.session.commit()
-
-        status_text = "activated" if qr_code.active_status else "deactivated"
-
-        if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
-            return jsonify({
-                'success': True,
-                'new_status': qr_code.active_status,
-                'status_text': 'Active' if qr_code.active_status else 'Inactive',
-                'message': f'QR code "{qr_code.name}" has been {status_text} successfully!'
-            })
-        else:
-            flash(f'QR code "{qr_code.name}" has been {status_text} successfully!', 'success')
-            return redirect(url_for('dashboard'))
-
-    except Exception as e:
-        db.session.rollback()
-
-        if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
-            return jsonify({
-                'success': False,
-                'message': 'Error updating QR code status. Please try again.'
-            }), 500
-        else:
-            flash('Error updating QR code status. Please try again.', 'error')
-            return redirect(url_for('dashboard'))
-
 @app.route('/attendance')
 @login_required
 def attendance_report():
@@ -6039,8 +6005,8 @@ def export_configuration():
         # Use your existing logger error method with correct parameters
         try:
             logger_handler.log_flask_error(
-                error_type="export_configuration_error",
+                'export_configuration_error',
-                error_message=str(e),
+                str(e),
                 stack_trace=traceback.format_exc()
             )
         except Exception as log_error:
@@ -6194,8 +6160,8 @@ def generate_excel_export():
         # Use your existing logger error method with correct parameters
         try:
             logger_handler.log_flask_error(
-                error_type="excel_export_error",
+                'excel_export_error',
-                error_message=str(e),
+                str(e),
                 stack_trace=traceback.format_exc()
             )
         except Exception as log_error:
@@ -6478,8 +6444,8 @@ def create_excel_export(selected_columns, column_names, filters):
         # Log error
         try:
             logger_handler.log_flask_error(
-                error_type="excel_export_error",
+                'excel_export_error',
-                error_message=str(e),
+                str(e),
                 stack_trace=traceback.format_exc()
             )
         except Exception as log_error:
@@ -6785,8 +6751,8 @@ def create_excel_export_ordered(selected_columns, column_names, filters):
         # Log error
         try:
             logger_handler.log_flask_error(
-                error_type="excel_export_ordered_error",
+                'excel_export_ordered_error',
-                error_message=str(e),
+                str(e),
                 stack_trace=traceback.format_exc()
             )
         except Exception as log_error:
@@ -6932,8 +6898,8 @@ def payroll_dashboard():
         print(f"❌ Traceback: {traceback.format_exc()}")
 
         logger_handler.log_flask_error(
-            error_type="payroll_dashboard_error",
+            'payroll_dashboard_error',
-            error_message=str(e),
+            str(e),
             stack_trace=traceback.format_exc()
         )
 
@@ -7173,8 +7139,8 @@ def export_payroll_excel():
         print(f"❌ Traceback: {traceback.format_exc()}")
 
         logger_handler.log_flask_error(
-            error_type="payroll_excel_export_error",
+            'payroll_excel_export_error',
-            error_message=str(e),
+            str(e),
             stack_trace=traceback.format_exc()
         )
 
@@ -7231,8 +7197,8 @@ def calculate_working_hours_api():
 
         attendance_records = query.all()
 
-        # Calculate working hours using single check-in calculator
+        # Calculate working hours using WorkingHoursCalculator
-        calculator = SingleCheckInCalculator()
+        calculator = WorkingHoursCalculator()
         hours_data = calculator.calculate_employee_hours(
             str(employee_id), start_date, end_date, attendance_records
         )
@@ -7248,8 +7214,8 @@ def calculate_working_hours_api():
     except Exception as e:
         print(f"❌ Error in calculate_working_hours_api: {e}")
         logger_handler.log_flask_error(
-            error_type="working_hours_api_error",
+            'working_hours_api_error',
-            error_message=str(e),
+            str(e),
             stack_trace=traceback.format_exc()
         )
 
@@ -7355,7 +7321,6 @@ def get_miss_punch_details(employee_id):
             converted_records.append(converted_record)
 
         # Calculate working hours using the same calculator as the dashboard
-        #calculator = SingleCheckInCalculator()
 
         # Calculate hours for this employee
         hours_data = calculator.calculate_employee_hours(
@@ -7415,8 +7380,8 @@ def get_miss_punch_details(employee_id):
         print(f"❌ Traceback: {traceback.format_exc()}")
 
         logger_handler.log_flask_error(
-            error_type="miss_punch_details_api_error",
+            'miss_punch_details_api_error',
-            error_message=str(e),
+            str(e),
             stack_trace=traceback.format_exc()
         )
 
@@ -9451,7 +9416,7 @@ def export_time_attendance_excel(records, project_name_for_filename, date_range_
             f"SP: {work_type_counts['SP']}, PW: {work_type_counts['PW']}"
         )
     
-    # Calculate working hours using SingleCheckInCalculator
+    # Calculate working hours using WorkingHoursCalculator
     calculator = WorkingHoursCalculator()
     hours_data = calculator.calculate_all_employees_hours(
         datetime.combine(start_date, datetime.min.time()),
@@ -11217,8 +11182,8 @@ def update_existing_qr_codes():
 
                 except Exception as e:
                     logger_handler.log_flask_error(
-                        error_type="qr_code_update_error",
+                        'qr_code_update_error',
-                        error_message=f"Failed to update QR code {qr_code.id}: {str(e)}"
+                        f"Failed to update QR code {qr_code.id}: {str(e)}"
                     )
                     continue
 
@@ -11437,8 +11402,8 @@ def get_optimized_statistics(date_from=None, date_to=None, project_filter=None):
         
     except Exception as e:
         logger_handler.log_database_error(
-            error_type="statistics_query_error",
+            'statistics_query_error',
-            error_message=str(e),
+            e,
             query="get_optimized_statistics"
         )
         raise
@@ -11493,8 +11458,8 @@ if __name__ == '__main__':
             print(f"❌ Application startup failed: {e}")
             if hasattr(app, 'logger_handler'):
                 logger_handler.log_flask_error(
-                    error_type="application_startup_error",
+                    'application_startup_error',
-                    error_message=str(e)
+                    str(e)
                 )
             raise
 

logger_handler.py

@@ -25,7 +25,7 @@ import os
 import traceback
 from datetime import datetime, date, timedelta
 from functools import wraps
-from flask import request, session, g
+from flask import request, session, g, render_template
 from sqlalchemy import text
 from sqlalchemy.exc import SQLAlchemyError
 import uuid
@@ -187,17 +187,7 @@ class AppLogger:
             if self.app.debug:
                 return None  # Let Flask handle debug errors
             
-            return '''
+            return render_template('errors/500.html'), 500
-            <!DOCTYPE html>
-            <html>
-            <head><title>Server Error</title></head>
-            <body style="font-family: Arial; text-align: center; margin-top: 100px;">
-                <h1>🔧 Something went wrong</h1>
-                <p>We're working to fix this issue. Please try again later.</p>
-                <a href="/" style="color: #2563eb;">← Back to Home</a>
-            </body>
-            </html>
-            ''', 500
         
         @self.app.errorhandler(404)
         def handle_not_found(error):
@@ -208,17 +198,7 @@ class AppLogger:
                 severity="LOW"
             )
             
-            return '''
+            return render_template('errors/404.html'), 404
-            <!DOCTYPE html>
-            <html>
-            <head><title>Page Not Found</title></head>
-            <body style="font-family: Arial; text-align: center; margin-top: 100px;">
-                <h1>🔍 Page Not Found</h1>
-                <p>The page you're looking for doesn't exist.</p>
-                <a href="/" style="color: #2563eb;">← Back to Home</a>
-            </body>
-            </html>
-            ''', 404
     
     def _get_request_context(self):
         """Get current request context information"""
@@ -836,6 +816,46 @@ def get_recent_logs(self, days=7, limit=100, category_filter=None, severity_filt
             print(f"Error in get_recent_logs: {e}")
             return []
 
+    def log_system_event(self, event_type, description, severity='INFO', additional_data=None):
+        """Log system-level events such as startup, optimization, and slow queries"""
+        event_data = {
+            'system_event_type': event_type,
+            'severity': severity,
+            'event_timestamp': datetime.now().isoformat()
+        }
+        if additional_data:
+            event_data['additional_data'] = additional_data
+        message = f"System event: {event_type} - {description}"
+        self.logger.info(json.dumps({'event': 'system_event', 'data': event_data}))
+        self._log_to_database(
+            event_type=event_type,
+            event_category='system',
+            description=message,
+            event_data=event_data,
+            severity=severity
+        )
+
+    def log_user_activity(self, activity_type, description='', additional_data=None):
+        """Log user activity events called directly from route handlers"""
+        context = self._get_request_context()
+        event_data = {
+            'activity_type': activity_type,
+            'event_timestamp': datetime.now().isoformat(),
+            'user_id': context.get('user_id'),
+            'username': context.get('username')
+        }
+        if additional_data:
+            event_data['additional_data'] = additional_data
+        message = f"User activity: {activity_type} - {description}" if description else f"User activity: {activity_type}"
+        self.logger.info(json.dumps({'event': 'user_activity', 'data': event_data}))
+        self._log_to_database(
+            event_type=f'user_activity_{activity_type}',
+            event_category='activity',
+            description=message,
+            event_data=event_data,
+            severity='INFO'
+        )
+
 # DECORATOR FUNCTIONS FOR AUTOMATIC LOGGING
 
 def log_user_activity(activity_type):

requirements.txt

@@ -1,64 +1,68 @@
 # QR Code Management System - Python Dependencies
 # Production-ready Flask application with MySQL support
+# Versions pinned as of March 2026 — run `pip install -r requirements.txt` on fresh deploy
 
 # Core Flask Framework
-Flask
+Flask==3.1.0
-Flask-SQLAlchemy
+Flask-SQLAlchemy==3.1.1
 
 # Database Support - MySQL
-PyMySQL                  # Pure Python MySQL client
+PyMySQL==1.1.1                  # Pure Python MySQL client
-mysql-connector-python   # Official MySQL connector (alternative)
+mysql-connector-python==9.2.0   # Official MySQL connector (alternative)
-SQLAlchemy
+SQLAlchemy==2.0.36
 
 # Security and Authentication
-Werkzeug                 # Security utilities and password hashing
+Werkzeug==3.1.3                 # Security utilities and password hashing
 
 # QR Code Generation
-qrcode                   # QR code generation library
+qrcode==8.0                     # QR code generation library
-Pillow                  # Image processing for QR codes
+Pillow==11.1.0                  # Image processing for QR codes
 
 # User Agent Detection
-user-agents              # Device and browser detection from user agent strings
+user-agents==2.2.0              # Device and browser detection from user agent strings
 
 # URL and Regex Processing
-regex                 # Enhanced regex support for URL generation
+regex==2024.11.6                # Enhanced regex support for URL generation
 
 # Environment and Configuration
-python-dotenv            # Environment variable management
+python-dotenv==1.0.1            # Environment variable management
 
 # Date and Time Processing
-python-dateutil          # Extended date/time processing
+python-dateutil==2.9.0.post0    # Extended date/time processing
 
 # Development and Testing (optional)
-pytest                   # Testing framework
+pytest==8.3.4                   # Testing framework
-pytest-flask             # Flask testing utilities
+pytest-flask==1.3.0             # Flask testing utilities
-Flask-Testing            # Additional Flask testing tools
+Flask-Testing==0.8.1            # Additional Flask testing tools
 
 # Production Server (optional)
-gunicorn                # WSGI HTTP Server for production
+gunicorn==23.0.0                # WSGI HTTP Server for production
-gevent                  # Async worker support
+gevent==24.11.1                 # Async worker support
 
 # Utilities
-click                    # Command line interface creation
+click==8.1.8                    # Command line interface creation
-itsdangerous            # Secure data serialization
+itsdangerous==2.2.0             # Secure data serialization
-Jinja2                   # Template engine
+Jinja2==3.1.5                   # Template engine
-MarkupSafe               # Safe string handling
+MarkupSafe==3.0.2               # Safe string handling
 
 # Data Export and Processing
-openpyxl                 # Excel file generation for attendance reports
+openpyxl==3.1.5                 # Excel file generation for attendance reports
-pandas                   # Data manipulation for reports (optional)
+pandas==2.2.3                   # Data manipulation for reports (optional)
 
 # HTTP Requests (for potential integrations)
-requests                # HTTP library for external API calls
+requests==2.32.3                # HTTP library for external API calls
+
+# Google Maps Integration
+googlemaps==4.10.0              # Google Maps API client
 
 # Caching (optional for performance)
-Flask-Caching            # Caching support for Flask
+Flask-Caching==2.3.0            # Caching support for Flask
 
 # Logging and Monitoring (optional)
-python-json-logger       # Structured logging support
+python-json-logger==3.2.1       # Structured logging support
 
 # Cryptography dependencies (required for some MySQL features)
-cryptography            # Required for MySQL SSL connections
+cryptography==44.0.0            # Required for MySQL SSL connections
 
 # Employee Synchronization Dependencies
-schedule              # For automated scheduling
+schedule==1.2.2                 # For automated scheduling

static/js/dashboard_backup.js

@@ -1,573 +0,0 @@
-/**
- * Dashboard-specific JavaScript functionality with QR Toggle
- * static/js/dashboard.js
- */
-
-// Dashboard QR Management Class
-class DashboardManager {
-  constructor() {
-    this.allExpanded = false;
-    this.currentModalQR = null;
-    this.init();
-  }
-
-  init() {
-    this.initializeSearch();
-    this.initializeFilters();
-    this.setupEventListeners();
-    this.addScrollAnimations();
-    this.updateResultsCount();
-  }
-
-  // Initialize search functionality with debouncing
-  initializeSearch() {
-    const searchInput = document.getElementById("qrSearch");
-    if (!searchInput) return;
-
-    let searchTimeout;
-    searchInput.addEventListener("input", () => {
-      clearTimeout(searchTimeout);
-      searchTimeout = setTimeout(() => {
-        this.filterQRCodes();
-      }, 300);
-    });
-  }
-
-  // Initialize filter functionality
-  initializeFilters() {
-    const statusFilter = document.getElementById("statusFilter");
-    if (!statusFilter) return;
-
-    statusFilter.addEventListener("change", () => {
-      this.filterQRCodes();
-    });
-  }
-
-  // Enhanced QR code filtering with animation
-  filterQRCodes() {
-    const searchTerm = document.getElementById("qrSearch").value.toLowerCase();
-    const statusFilter = document.getElementById("statusFilter").value;
-    const qrItems = document.querySelectorAll(".qr-item");
-
-    let visibleCount = 0;
-
-    qrItems.forEach((item) => {
-      const name = item.dataset.name || "";
-      const location = item.dataset.location || "";
-      const status = item.dataset.status || "";
-
-      const matchesSearch =
-        !searchTerm ||
-        name.includes(searchTerm) ||
-        location.includes(searchTerm);
-      const matchesStatus = !statusFilter || status === statusFilter;
-
-      if (matchesSearch && matchesStatus) {
-        this.showQRItem(item);
-        visibleCount++;
-      } else {
-        this.hideQRItem(item);
-      }
-    });
-
-    this.updateResultsDisplay(visibleCount);
-    this.updateResultsCount();
-  }
-
-  // Show QR item with animation
-  showQRItem(item) {
-    item.style.display = "block";
-    setTimeout(() => {
-      item.classList.add("fade-in");
-      item.classList.remove("fade-out");
-    }, 10);
-  }
-
-  // Hide QR item with animation
-  hideQRItem(item) {
-    item.classList.add("fade-out");
-    item.classList.remove("fade-in");
-    setTimeout(() => {
-      item.style.display = "none";
-    }, 300);
-  }
-
-  // Update results display and empty state
-  updateResultsDisplay(count) {
-    const qrList = document.getElementById("qrList");
-    let existingEmpty = document.querySelector(".search-empty-state");
-
-    if (
-      count === 0 &&
-      (document.getElementById("qrSearch").value ||
-        document.getElementById("statusFilter").value)
-    ) {
-      if (!existingEmpty) {
-        const emptyState = document.createElement("div");
-        emptyState.className = "search-empty-state";
-        emptyState.innerHTML = `
-          <div class="empty-icon">
-            <i class="fas fa-search"></i>
-          </div>
-          <h3>No QR Codes Found</h3>
-          <p>Try adjusting your search or filter criteria</p>
-          <button onclick="dashboardManager.clearFilters()" class="btn btn-outline">
-            <i class="fas fa-refresh"></i>
-            Clear Filters
-          </button>
-        `;
-        qrList.parentNode.appendChild(emptyState);
-      }
-    } else {
-      if (existingEmpty) {
-        existingEmpty.remove();
-      }
-    }
-  }
-
-  // Clear all filters
-  clearFilters() {
-    document.getElementById("qrSearch").value = "";
-    document.getElementById("statusFilter").value = "";
-    this.filterQRCodes();
-  }
-
-  // Update results counter
-  updateResultsCount() {
-    const qrItems = document.querySelectorAll(
-      '.qr-item[style*="block"], .qr-item:not([style*="none"])'
-    );
-    const totalItems = document.querySelectorAll(".qr-item").length;
-    const visibleCount = qrItems.length;
-
-    let counter = document.querySelector(".results-counter");
-    if (!counter) {
-      counter = document.createElement("div");
-      counter.className = "results-counter";
-      const searchContainer = document.querySelector(".search-container");
-      if (searchContainer) {
-        searchContainer.appendChild(counter);
-      }
-    }
-
-    if (visibleCount !== totalItems) {
-      counter.textContent = `Showing ${visibleCount} of ${totalItems} QR codes`;
-      counter.style.display = "block";
-    } else {
-      counter.style.display = "none";
-    }
-  }
-
-  // Setup additional event listeners
-  setupEventListeners() {
-    // Keyboard shortcuts
-    document.addEventListener("keydown", (e) => {
-      if (e.ctrlKey || e.metaKey) {
-        switch (e.key) {
-          case "f":
-            e.preventDefault();
-            document.getElementById("qrSearch")?.focus();
-            break;
-        }
-      }
-    });
-
-    // Enhanced modal functionality
-    this.setupModalHandling();
-  }
-
-  // Enhanced modal handling
-  setupModalHandling() {
-    const modal = document.getElementById("qrModal");
-    if (!modal) return;
-
-    // Close modal with better animation
-    const closeButtons = modal.querySelectorAll("[onclick*='closeQRModal']");
-    closeButtons.forEach((btn) => {
-      btn.addEventListener("click", (e) => {
-        e.preventDefault();
-        this.closeQRModal();
-      });
-    });
-
-    // Click outside to close
-    modal.addEventListener("click", (e) => {
-      if (e.target === modal) {
-        this.closeQRModal();
-      }
-    });
-
-    // Escape key to close
-    document.addEventListener("keydown", (e) => {
-      if (e.key === "Escape" && modal.style.display === "flex") {
-        this.closeQRModal();
-      }
-    });
-  }
-
-  // Close QR modal with improved animation
-  closeQRModal() {
-    const modal = document.getElementById("qrModal");
-    if (modal) {
-      modal.classList.remove("show");
-      setTimeout(() => {
-        modal.style.display = "none";
-      }, 200);
-    }
-    this.currentModalQR = null;
-  }
-
-  // Add scroll animations for better UX
-  addScrollAnimations() {
-    const observerOptions = {
-      threshold: 0.1,
-      rootMargin: "0px 0px -50px 0px",
-    };
-
-    const observer = new IntersectionObserver((entries) => {
-      entries.forEach((entry) => {
-        if (entry.isIntersecting) {
-          entry.target.style.opacity = "1";
-          entry.target.style.transform = "translateY(0)";
-        }
-      });
-    }, observerOptions);
-
-    // Observe QR items
-    document.querySelectorAll(".qr-item").forEach((item) => {
-      item.style.opacity = "0";
-      item.style.transform = "translateY(20px)";
-      item.style.transition = "opacity 0.6s ease, transform 0.6s ease";
-      observer.observe(item);
-    });
-  }
-
-  // Toggle QR details with smooth animation
-  toggleQRDetails(qrId) {
-    const details = document.getElementById(`qr-details-${qrId}`);
-    const chevron = document.querySelector(
-      `[onclick="toggleQRDetails(${qrId})"] .chevron`
-    );
-
-    if (!details) return;
-
-    if (details.classList.contains("expanded")) {
-      details.classList.remove("expanded");
-      if (chevron) chevron.style.transform = "rotate(0deg)";
-    } else {
-      // Close other expanded items first
-      document
-        .querySelectorAll(".qr-item-details.expanded")
-        .forEach((detail) => {
-          if (detail !== details) {
-            detail.classList.remove("expanded");
-          }
-        });
-
-      details.classList.add("expanded");
-      if (chevron) chevron.style.transform = "rotate(180deg)";
-    }
-  }
-
-  // Toggle all QR codes expand/collapse
-  toggleAllQRs() {
-    const details = document.querySelectorAll(".qr-item-details");
-    const expandIcon = document.getElementById("expandIcon");
-    const expandText = document.getElementById("expandText");
-
-    this.allExpanded = !this.allExpanded;
-
-    details.forEach((detail) => {
-      if (this.allExpanded) {
-        detail.classList.add("expanded");
-      } else {
-        detail.classList.remove("expanded");
-      }
-    });
-
-    // Update button text and icon
-    if (expandIcon && expandText) {
-      if (this.allExpanded) {
-        expandIcon.className = "fas fa-compress-alt";
-        expandText.textContent = "Collapse All";
-      } else {
-        expandIcon.className = "fas fa-expand-alt";
-        expandText.textContent = "Expand All";
-      }
-    }
-
-    // Update chevron icons
-    document.querySelectorAll(".chevron").forEach((chevron) => {
-      chevron.style.transform = this.allExpanded
-        ? "rotate(180deg)"
-        : "rotate(0deg)";
-    });
-  }
-
-  // Enhanced QR preview functionality
-  previewQR(qrData, qrName) {
-    const modal = document.getElementById("qrModal");
-    const modalTitle = document.getElementById("modalTitle");
-    const modalImage = document.getElementById("modalQRImage");
-
-    if (modal && modalTitle && modalImage) {
-      modalTitle.textContent = `${qrName} - QR Code`;
-      modalImage.src = `data:image/png;base64,${qrData}`;
-      modalImage.alt = `QR Code for ${qrName}`;
-
-      this.currentModalQR = {
-        name: qrName,
-        image: `data:image/png;base64,${qrData}`,
-      };
-
-      modal.style.display = "flex";
-      setTimeout(() => modal.classList.add("show"), 10);
-    }
-  }
-
-  // Enhanced download functionality
-  downloadQR(base64Image, filename) {
-    try {
-      const link = document.createElement("a");
-      link.href = `data:image/png;base64,${base64Image}`;
-      link.download = `${filename
-        .replace(/[^a-z0-9]/gi, "_")
-        .toLowerCase()}_qr_code.png`;
-
-      document.body.appendChild(link);
-      link.click();
-      document.body.removeChild(link);
-
-      // Show success toast
-      this.showToast("QR code downloaded successfully!", "success");
-    } catch (error) {
-      this.showToast("Failed to download QR code", "error");
-      console.error("Download error:", error);
-    }
-  }
-
-  // Download from modal
-  downloadModalQR() {
-    if (this.currentModalQR) {
-      const base64Data = this.currentModalQR.image.split("base64,")[1];
-      this.downloadQR(base64Data, this.currentModalQR.name);
-    }
-  }
-
-  // NEW: Toggle QR Code Status (Activate/Deactivate)
-  async toggleQRCodeStatus(qrId) {
-    const qrItem = document.querySelector(`[data-qr-id="${qrId}"]`);
-    const statusElement = document.getElementById(`status-${qrId}`);
-    const statusIcon = document.getElementById(`status-icon-${qrId}`);
-    const statusText = document.getElementById(`status-text-${qrId}`);
-    const toggleBtn = document.getElementById(`toggle-btn-${qrId}`);
-    const toggleIcon = document.getElementById(`toggle-icon-${qrId}`);
-    const detailToggleBtn = document.getElementById(
-      `detail-toggle-btn-${qrId}`
-    );
-
-    if (!statusElement || !qrItem) return;
-
-    // Add loading state
-    statusElement.classList.add("status-loading");
-    if (toggleBtn) toggleBtn.disabled = true;
-    if (detailToggleBtn) detailToggleBtn.disabled = true;
-
-    try {
-      const response = await fetch(`/qr-codes/${qrId}/toggle-status`, {
-        method: "POST",
-        headers: {
-          "Content-Type": "application/json",
-        },
-      });
-
-      const data = await response.json();
-
-      if (data.success) {
-        // Update UI elements
-        const newStatus = data.new_status;
-        const newStatusClass = newStatus ? "active" : "inactive";
-        const newIconClass = newStatus ? "fa-check-circle" : "fa-times-circle";
-        const newToggleIcon = newStatus ? "fa-pause" : "fa-play";
-        const newToggleBtnClass = newStatus ? "btn-deactivate" : "btn-activate";
-        const newDetailBtnClass = newStatus ? "btn-warning" : "btn-success";
-        const newDetailBtnText = newStatus ? "Deactivate" : "Activate";
-
-        // Update status badge
-        statusElement.className = `qr-status ${newStatusClass}`;
-        if (statusIcon) statusIcon.className = `fas ${newIconClass}`;
-        if (statusText) statusText.textContent = data.status_text;
-
-        // Update QR item data attribute and styling
-        qrItem.setAttribute("data-status", newStatusClass);
-
-        // Update toggle button (collapsed view)
-        if (toggleBtn) {
-          toggleBtn.className = `action-btn btn-status ${newToggleBtnClass}`;
-          toggleBtn.title = `${newDetailBtnText} QR Code`;
-        }
-        if (toggleIcon) {
-          toggleIcon.className = `fas ${newToggleIcon}`;
-        }
-
-        // Update detail toggle button (expanded view)
-        if (detailToggleBtn) {
-          detailToggleBtn.className = `btn ${newDetailBtnClass}`;
-          detailToggleBtn.innerHTML = `<i class="fas ${newToggleIcon}"></i> ${newDetailBtnText} QR Code`;
-        }
-
-        // Update status badges in expanded view
-        const detailStatusBadges = qrItem.querySelectorAll(".status-badge");
-        detailStatusBadges.forEach((badge) => {
-          badge.className = `status-badge ${newStatusClass}`;
-          const icon = badge.querySelector("i");
-          if (icon) icon.className = `fas ${newIconClass}`;
-          const text = badge.textContent.trim();
-          if (text === "Active" || text === "Inactive") {
-            badge.innerHTML = `<i class="fas ${newIconClass}"></i> ${data.status_text}`;
-          }
-        });
-
-        // Show success message
-        this.showToast(data.message, "success");
-
-        // Update statistics if needed
-        this.updateStatistics();
-      } else {
-        this.showToast(
-          data.message || "Failed to update QR code status",
-          "error"
-        );
-      }
-    } catch (error) {
-      console.error("Error toggling QR status:", error);
-      this.showToast("Network error. Please try again.", "error");
-    } finally {
-      // Remove loading state
-      statusElement.classList.remove("status-loading");
-      if (toggleBtn) toggleBtn.disabled = false;
-      if (detailToggleBtn) detailToggleBtn.disabled = false;
-    }
-  }
-
-  // Update statistics after status change
-  updateStatistics() {
-    const activeCount = document.querySelectorAll(
-      '[data-status="active"]'
-    ).length;
-    const inactiveCount = document.querySelectorAll(
-      '[data-status="inactive"]'
-    ).length;
-    const totalCount = activeCount + inactiveCount;
-
-    // Update active count
-    const activeStatElement = document.querySelector(".stat-card.success h3");
-    if (activeStatElement) {
-      activeStatElement.textContent = activeCount;
-    }
-
-    // Update active percentage
-    const activePercentElement = document.querySelector(
-      ".stat-card.success .stat-trend"
-    );
-    if (activePercentElement && totalCount > 0) {
-      const percentage = ((activeCount / totalCount) * 100).toFixed(1);
-      activePercentElement.textContent = `${percentage}% active`;
-    }
-
-    // Update inactive count if there's a specific stat card for it
-    const inactiveStatElement = document.querySelector(".stat-card.warning h3");
-    if (inactiveStatElement) {
-      inactiveStatElement.textContent = inactiveCount;
-    }
-
-    // Update inactive percentage
-    const inactivePercentElement = document.querySelector(
-      ".stat-card.warning .stat-trend"
-    );
-    if (inactivePercentElement && totalCount > 0) {
-      const percentage = ((inactiveCount / totalCount) * 100).toFixed(1);
-      inactivePercentElement.textContent = `${percentage}% inactive`;
-    }
-  }
-
-  // Toast notification system
-  showToast(message, type = "info") {
-    const toast = document.createElement("div");
-    toast.className = `toast toast-${type}`;
-    toast.innerHTML = `
-      <div class="toast-content">
-        <i class="fas ${this.getToastIcon(type)}"></i>
-        <span>${message}</span>
-      </div>
-    `;
-
-    document.body.appendChild(toast);
-
-    // Animate in
-    setTimeout(() => toast.classList.add("show"), 100);
-
-    // Auto remove
-    setTimeout(() => {
-      toast.classList.remove("show");
-      setTimeout(() => {
-        if (document.body.contains(toast)) {
-          document.body.removeChild(toast);
-        }
-      }, 300);
-    }, 3000);
-  }
-
-  // Get toast icon based on type
-  getToastIcon(type) {
-    const icons = {
-      success: "fa-check-circle",
-      error: "fa-exclamation-circle",
-      warning: "fa-exclamation-triangle",
-      info: "fa-info-circle",
-    };
-    return icons[type] || icons.info;
-  }
-}
-
-// Global functions for compatibility with existing onclick handlers
-let dashboardManager;
-
-function toggleQRDetails(qrId) {
-  dashboardManager?.toggleQRDetails(qrId);
-}
-
-function toggleAllQRs() {
-  dashboardManager?.toggleAllQRs();
-}
-
-function previewQR(qrData, qrName) {
-  dashboardManager?.previewQR(qrData, qrName);
-}
-
-function downloadQR(base64Image, filename) {
-  dashboardManager?.downloadQR(base64Image, filename);
-}
-
-function closeQRModal() {
-  dashboardManager?.closeQRModal();
-}
-
-function downloadModalQR() {
-  dashboardManager?.downloadModalQR();
-}
-
-// NEW: Global function for QR status toggle
-function toggleQRCodeStatus(qrId) {
-  dashboardManager?.toggleQRCodeStatus(qrId);
-}
-
-// Initialize dashboard when DOM is ready
-document.addEventListener("DOMContentLoaded", function () {
-  dashboardManager = new DashboardManager();
-
-  // Add helpful keyboard shortcuts tooltip
-  console.log("Dashboard keyboard shortcuts:");
-  console.log("Ctrl/Cmd + F: Focus search");
-  console.log("Escape: Close modal");
-});