// Admin panel JavaScript
let adminMap = null;
let startMarker = null;
let storedQRCodes = {};

// Utility function to create a local date from YYYY-MM-DD string
// This prevents timezone issues when displaying dates
function createLocalDate(dateString) {
    if (!dateString) return null;
    const parts = dateString.split('-');
    if (parts.length !== 3) return new Date(dateString); // fallback to original behavior
    // Create date using local timezone (year, month-1, day)
    return new Date(parseInt(parts[0]), parseInt(parts[1]) - 1, parseInt(parts[2]));
}

// A function to set viewport dimensions for admin page
function setAdminViewportDimensions() {
    const doc = document.documentElement;
    
    // Set height and width
    doc.style.setProperty('--app-height', `${window.innerHeight}px`);
    doc.style.setProperty('--app-width', `${window.innerWidth}px`);
    
    // Handle safe area insets for devices with notches or home indicators
    if (CSS.supports('padding: env(safe-area-inset-top)')) {
        doc.style.setProperty('--safe-area-top', 'env(safe-area-inset-top)');
        doc.style.setProperty('--safe-area-bottom', 'env(safe-area-inset-bottom)');
        doc.style.setProperty('--safe-area-left', 'env(safe-area-inset-left)');
        doc.style.setProperty('--safe-area-right', 'env(safe-area-inset-right)');
    } else {
        doc.style.setProperty('--safe-area-top', '0px');
        doc.style.setProperty('--safe-area-bottom', '0px');
        doc.style.setProperty('--safe-area-left', '0px');
        doc.style.setProperty('--safe-area-right', '0px');
    }
}

// Initialize when DOM is loaded
document.addEventListener('DOMContentLoaded', () => {
    // Set initial viewport dimensions and listen for resize events
    setAdminViewportDimensions();
    window.addEventListener('resize', setAdminViewportDimensions);
    window.addEventListener('orientationchange', () => {
        // Add a small delay for orientation change to complete
        setTimeout(setAdminViewportDimensions, 100);
    });
    
    checkAdminAuth();
    initializeAdminMap();
    loadCurrentStartLocation();
    setupEventListeners();
    setupNavigation();
    setupMobileMenu();
    
    // Initialize NocoDB links with a small delay to ensure DOM is ready
    setTimeout(() => {
        loadWalkSheetConfig();
        initializeNocodbLinks();
        initializeListmonkLinks();
    }, 100);
    
    // Check if URL has a hash to show specific section
    const hash = window.location.hash;
    if (hash === '#walk-sheet') {
        showSection('walk-sheet');
        checkAndLoadWalkSheetConfig();
    } else if (hash === '#convert-data') {
        showSection('convert-data');
    } else if (hash === '#cuts') {
        showSection('cuts');
    } else {
        // Default to dashboard
        showSection('dashboard');
        // Load dashboard data on initial page load
        loadDashboardData();
    }
});

// Add mobile menu functionality
function setupMobileMenu() {
    const menuToggle = document.getElementById('mobile-menu-toggle');
    const sidebar = document.getElementById('admin-sidebar');
    const closeSidebar = document.getElementById('close-sidebar');
    const adminNavLinks = document.querySelectorAll('.admin-nav a');
    
    if (menuToggle && sidebar) {
        // Toggle menu
        menuToggle.addEventListener('click', () => {
            sidebar.classList.toggle('active');
            menuToggle.classList.toggle('active');
            document.body.classList.toggle('sidebar-open'); // This line already exists
        });
        
        // Close sidebar button
        if (closeSidebar) {
            closeSidebar.addEventListener('click', () => {
                sidebar.classList.remove('active');
                menuToggle.classList.remove('active');
                document.body.classList.remove('sidebar-open');
            });
        }
        
        // Close sidebar when clicking outside
        document.addEventListener('click', (e) => {
            if (sidebar.classList.contains('active') && 
                !sidebar.contains(e.target) && 
                !menuToggle.contains(e.target)) {
                sidebar.classList.remove('active');
                menuToggle.classList.remove('active');
                document.body.classList.remove('sidebar-open');
            }
        });
        
        // Close sidebar when navigation link is clicked on mobile
        adminNavLinks.forEach(link => {
            link.addEventListener('click', () => {
                if (window.innerWidth <= 768) {
                    sidebar.classList.remove('active');
                    menuToggle.classList.remove('active');
                    document.body.classList.remove('sidebar-open');
                }
            });
        });
    }
}

// Check if user is authenticated as admin
async function checkAdminAuth() {
    try {
        const response = await fetch('/api/auth/check');
        const data = await response.json();
        
        console.log('Admin auth check result:', data);
        
        if (!data.authenticated || !data.user?.isAdmin) {
            console.log('Redirecting to login - not authenticated or not admin');
            window.location.href = '/login.html';
            return;
        }
        
        console.log('User is authenticated as admin:', data.user);
        
        // Display admin info (desktop)
        document.getElementById('admin-info').innerHTML = `
            <span>👤 ${escapeHtml(data.user.email)}</span>
            <button id="logout-btn" class="btn btn-secondary btn-sm">Logout</button>
        `;
        
        // Display admin info (mobile)
        const mobileAdminInfo = document.getElementById('mobile-admin-info');
        if (mobileAdminInfo) {
            mobileAdminInfo.innerHTML = `
                <div>👤 ${escapeHtml(data.user.email)}</div>
                <button id="mobile-logout-btn" class="btn btn-secondary btn-sm" style="margin-top: 10px; width: 100%;">Logout</button>
            `;
            
            // Add logout listener for mobile button
            document.getElementById('mobile-logout-btn')?.addEventListener('click', handleLogout);
        }
        
        document.getElementById('logout-btn').addEventListener('click', handleLogout);
        
    } catch (error) {
        console.error('Auth check failed:', error);
        window.location.href = '/login.html';
    }
}

// Initialize the admin map
function initializeAdminMap() {
    adminMap = L.map('admin-map').setView([53.5461, -113.4938], 11);
    
    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
        maxZoom: 19,
        minZoom: 2
    }).addTo(adminMap);
    
    // Add crosshair to center of map
    const crosshairIcon = L.divIcon({
        className: 'crosshair',
        iconSize: [20, 20],
        html: '<div style="width: 20px; height: 20px; position: relative;"><div style="position: absolute; top: 9px; left: 0; width: 20px; height: 2px; background: #333; box-shadow: 0 0 3px rgba(255,255,255,0.8);"></div><div style="position: absolute; top: 0; left: 9px; width: 2px; height: 20px; background: #333; box-shadow: 0 0 3px rgba(255,255,255,0.8);"></div></div>'
    });
    
    const crosshair = L.marker(adminMap.getCenter(), {
        icon: crosshairIcon,
        interactive: false,
        zIndexOffset: 1000
    }).addTo(adminMap);
    
    // Update crosshair position when map moves
    adminMap.on('move', function() {
        crosshair.setLatLng(adminMap.getCenter());
    });
    
    // Add click handler to set location
    adminMap.on('click', handleMapClick);
    
    // Update coordinates when map moves
    adminMap.on('moveend', updateCoordinatesFromMap);
}

// Load current start location
async function loadCurrentStartLocation() {
    try {
        const response = await fetch('/api/admin/start-location');
        const data = await response.json();
        
        if (data.success) {
            const { latitude, longitude, zoom } = data.location;
            
            // Update form fields
            document.getElementById('start-lat').value = latitude;
            document.getElementById('start-lng').value = longitude;
            document.getElementById('start-zoom').value = zoom;
            
            // Update map
            adminMap.setView([latitude, longitude], zoom);
            updateStartMarker(latitude, longitude);
            
            // Show source info
            if (data.source) {
                const sourceText = data.source === 'database' ? 'Loaded from database' :
                                 data.source === 'environment' ? 'Using environment defaults' :
                                 'Using system defaults';
                showStatus(sourceText, 'info');
            }
        }
        
    } catch (error) {
        console.error('Failed to load start location:', error);
        showStatus('Failed to load current start location', 'error');
    }
}

// Handle map click
function handleMapClick(e) {
    const { lat, lng } = e.latlng;
    
    document.getElementById('start-lat').value = lat.toFixed(6);
    document.getElementById('start-lng').value = lng.toFixed(6);
    
    updateStartMarker(lat, lng);
}

// Update marker position
function updateStartMarker(lat, lng) {
    if (startMarker) {
        startMarker.setLatLng([lat, lng]);
    } else {
        startMarker = L.marker([lat, lng], {
            draggable: true,
            title: 'Start Location'
        }).addTo(adminMap);
        
        // Update coordinates when marker is dragged
        startMarker.on('dragend', (e) => {
            const position = e.target.getLatLng();
            document.getElementById('start-lat').value = position.lat.toFixed(6);
            document.getElementById('start-lng').value = position.lng.toFixed(6);
        });
    }
}

// Update coordinates from current map view
function updateCoordinatesFromMap() {
    const center = adminMap.getCenter();
    const zoom = adminMap.getZoom();
    
    document.getElementById('start-zoom').value = zoom;
}

// Setup event listeners
function setupEventListeners() {
    // Use current view button
    const useCurrentViewBtn = document.getElementById('use-current-view');
    if (useCurrentViewBtn) {
        useCurrentViewBtn.addEventListener('click', () => {
            const center = adminMap.getCenter();
            const zoom = adminMap.getZoom();
            
            document.getElementById('start-lat').value = center.lat.toFixed(6);
            document.getElementById('start-lng').value = center.lng.toFixed(6);
            document.getElementById('start-zoom').value = zoom;
            
            updateStartMarker(center.lat, center.lng);
            showStatus('Captured current map view', 'success');
        });
    }
    
    // Save button
    const saveLocationBtn = document.getElementById('save-start-location');
    if (saveLocationBtn) {
        saveLocationBtn.addEventListener('click', saveStartLocation);
    }
    
    // Coordinate input changes
    const startLatInput = document.getElementById('start-lat');
    const startLngInput = document.getElementById('start-lng');
    const startZoomInput = document.getElementById('start-zoom');
    
    if (startLatInput) startLatInput.addEventListener('change', updateMapFromInputs);
    if (startLngInput) startLngInput.addEventListener('change', updateMapFromInputs);
    if (startZoomInput) startZoomInput.addEventListener('change', updateMapFromInputs);
    
    // Walk Sheet buttons
    const saveWalkSheetBtn = document.getElementById('save-walk-sheet');
    const previewWalkSheetBtn = document.getElementById('preview-walk-sheet');
    const printWalkSheetBtn = document.getElementById('print-walk-sheet');
    const refreshPreviewBtn = document.getElementById('refresh-preview');
    
    if (saveWalkSheetBtn) saveWalkSheetBtn.addEventListener('click', saveWalkSheetConfig);
    if (previewWalkSheetBtn) previewWalkSheetBtn.addEventListener('click', generateWalkSheetPreview);
    if (printWalkSheetBtn) printWalkSheetBtn.addEventListener('click', printWalkSheet);
    if (refreshPreviewBtn) refreshPreviewBtn.addEventListener('click', generateWalkSheetPreview);
    
    // Auto-update preview on input change
    const walkSheetInputs = document.querySelectorAll(
        '#walk-sheet-title, #walk-sheet-subtitle, #walk-sheet-footer, ' +
        '[id^="qr-code-"][id$="-url"], [id^="qr-code-"][id$="-label"]'
    );
    
    walkSheetInputs.forEach(input => {
        if (input) {
            input.addEventListener('input', debounce(() => {
                generateWalkSheetPreview();
            }, 500));
        }
    });
    
    // Add URL change listeners to detect when QR codes need regeneration
    for (let i = 1; i <= 3; i++) {
        const urlInput = document.getElementById(`qr-code-${i}-url`);
        if (urlInput) {
            let previousUrl = urlInput.value;
            
            urlInput.addEventListener('change', () => {
                const currentUrl = urlInput.value;
                if (currentUrl !== previousUrl) {
                    console.log(`QR Code ${i} URL changed from "${previousUrl}" to "${currentUrl}"`);
                    // Remove stored QR code so it gets regenerated
                    delete storedQRCodes[currentUrl];
                    previousUrl = currentUrl;
                    generateWalkSheetPreview();
                }
            });
        }
    }
    
    // Shift form submission
    const shiftForm = document.getElementById('shift-form');
    if (shiftForm) {
        shiftForm.addEventListener('submit', createShift);
    }
    
    // Clear shift form button
    const clearShiftBtn = document.getElementById('clear-shift-form');
    if (clearShiftBtn) {
        clearShiftBtn.addEventListener('click', clearShiftForm);
    }
    
    // User form submission
    const userForm = document.getElementById('create-user-form');
    if (userForm) {
        userForm.addEventListener('submit', createUser);
    }
    
    // Clear user form button
    const clearUserBtn = document.getElementById('clear-user-form');
    if (clearUserBtn) {
        clearUserBtn.addEventListener('click', clearUserForm);
    }
    
    // User type change listener
    const userTypeSelect = document.getElementById('user-type');
    if (userTypeSelect) {
        userTypeSelect.addEventListener('change', (e) => {
            const expirationGroup = document.getElementById('expiration-group');
            const isAdminCheckbox = document.getElementById('user-is-admin');
            
            if (e.target.value === 'temp') {
                expirationGroup.style.display = 'block';
                isAdminCheckbox.checked = false;
                isAdminCheckbox.disabled = true;
            } else {
                expirationGroup.style.display = 'none';
                isAdminCheckbox.disabled = false;
                
                if (e.target.value === 'admin') {
                    isAdminCheckbox.checked = true;
                } else {
                    isAdminCheckbox.checked = false;
                }
            }
        });
    }
}

// Setup navigation between admin sections
function setupNavigation() {
    const navLinks = document.querySelectorAll('.admin-nav a');
    const sections = document.querySelectorAll('.admin-section');
    
    navLinks.forEach(link => {
        link.addEventListener('click', (e) => {
            e.preventDefault();
            
            const targetId = link.getAttribute('href').substring(1);
            
            // Update active nav
            navLinks.forEach(l => l.classList.remove('active'));
            link.classList.add('active');
            
            // Show target section
            sections.forEach(section => {
                section.style.display = section.id === targetId ? 'block' : 'none';
            });
            
            // Update URL hash
            window.location.hash = targetId;
            
            // Load section-specific data
            if (targetId === 'walk-sheet') {
                checkAndLoadWalkSheetConfig();
            } else if (targetId === 'dashboard') {
                loadDashboardData();
            } else if (targetId === 'shifts') {
                loadAdminShifts();
            } else if (targetId === 'users') {
                loadUsers();
            } else if (targetId === 'convert-data') {
                // Initialize data convert event listeners when section is shown
                setTimeout(() => {
                    if (typeof window.setupDataConvertEventListeners === 'function') {
                        console.log('Setting up data convert event listeners...');
                        window.setupDataConvertEventListeners();
                    } else {
                        console.error('setupDataConvertEventListeners not found');
                    }
                }, 100);
            }
            
            // Close mobile menu if open
            const sidebar = document.getElementById('admin-sidebar');
            if (sidebar && sidebar.classList.contains('open')) {
                sidebar.classList.remove('open');
            }
        });
    });
    
    // Set initial active state based on current hash or default
    const currentHash = window.location.hash || '#dashboard';
    const activeLink = document.querySelector(`.admin-nav a[href="${currentHash}"]`);
    if (activeLink) {
        activeLink.classList.add('active');
    }
    
    // Also check if we're already on the shifts page (via hash)
    const hash = window.location.hash;
    if (hash === '#shifts') {
        showSection('shifts');
        loadAdminShifts();
    }
}

// Helper function to show a specific section
function showSection(sectionId) {
    const sections = document.querySelectorAll('.admin-section');
    const navLinks = document.querySelectorAll('.admin-nav a');
    
    // Hide all sections
    sections.forEach(section => {
        section.style.display = section.id === sectionId ? 'block' : 'none';
    });
    
    // Update active nav
    navLinks.forEach(link => {
        const linkTarget = link.getAttribute('href').substring(1);
        link.classList.toggle('active', linkTarget === sectionId);
    });
    
    // Special handling for convert-data section
    if (sectionId === 'convert-data') {
        // Initialize data convert event listeners when section is shown
        setTimeout(() => {
            if (typeof window.setupDataConvertEventListeners === 'function') {
                console.log('Setting up data convert event listeners from showSection...');
                window.setupDataConvertEventListeners();
            } else {
                console.error('setupDataConvertEventListeners not found in showSection');
            }
        }, 100);
    }
    
    // Special handling for cuts section
    if (sectionId === 'cuts') {
        // Initialize admin cuts manager when section is shown
        setTimeout(() => {
            if (typeof window.adminCutsManager === 'object' && window.adminCutsManager.initialize) {
                if (!window.adminCutsManager.isInitialized) {
                    console.log('Initializing admin cuts manager from showSection...');
                    window.adminCutsManager.initialize().catch(error => {
                        console.error('Failed to initialize cuts manager:', error);
                    });
                } else {
                    console.log('Admin cuts manager already initialized');
                }
            } else {
                console.error('adminCutsManager not found in showSection');
            }
        }, 100);
    }

    // Special handling for shifts section
    if (sectionId === 'shifts') {
        console.log('Loading shifts for admin panel...');
        loadAdminShifts();
    }
}

// Update map from input fields
function updateMapFromInputs() {
    const lat = parseFloat(document.getElementById('start-lat').value);
    const lng = parseFloat(document.getElementById('start-lng').value);
    const zoom = parseInt(document.getElementById('start-zoom').value);
    
    if (!isNaN(lat) && !isNaN(lng) && !isNaN(zoom)) {
        adminMap.setView([lat, lng], zoom);
        updateStartMarker(lat, lng);
    }
}

// Save start location
async function saveStartLocation() {
    const lat = parseFloat(document.getElementById('start-lat').value);
    const lng = parseFloat(document.getElementById('start-lng').value);
    const zoom = parseInt(document.getElementById('start-zoom').value);
    
    // Validate
    if (isNaN(lat) || isNaN(lng) || isNaN(zoom)) {
        showStatus('Please enter valid coordinates and zoom level', 'error');
        return;
    }
    
    if (lat < -90 || lat > 90 || lng < -180 || lng > 180) {
        showStatus('Coordinates out of valid range', 'error');
        return;
    }
    
    if (zoom < 2 || zoom > 19) {
        showStatus('Zoom level must be between 2 and 19', 'error');
        return;
    }
    
    try {
        const response = await fetch('/api/admin/start-location', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                latitude: lat,
                longitude: lng,
                zoom: zoom
            })
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('Start location saved successfully!', 'success');
        } else {
            throw new Error(data.error || 'Failed to save');
        }
        
    } catch (error) {
        console.error('Save error:', error);
        showStatus(error.message || 'Failed to save start location', 'error');
    }
}

// Save walk sheet configuration
async function saveWalkSheetConfig() {
    const config = {
        walk_sheet_title: document.getElementById('walk-sheet-title')?.value || '',
        walk_sheet_subtitle: document.getElementById('walk-sheet-subtitle')?.value || '',
        walk_sheet_footer: document.getElementById('walk-sheet-footer')?.value || '',
        qr_code_1_url: document.getElementById('qr-code-1-url')?.value || '',
        qr_code_1_label: document.getElementById('qr-code-1-label')?.value || '',
        qr_code_2_url: document.getElementById('qr-code-2-url')?.value || '',
        qr_code_2_label: document.getElementById('qr-code-2-label')?.value || '',
        qr_code_3_url: document.getElementById('qr-code-3-url')?.value || '',
        qr_code_3_label: document.getElementById('qr-code-3-label')?.value || ''
    };

    console.log('Saving walk sheet config:', config);

    // Show loading state
    const saveButton = document.getElementById('save-walk-sheet');
    if (!saveButton) {
        showStatus('Save button not found', 'error');
        return;
    }

    const originalText = saveButton.textContent;
    saveButton.textContent = 'Saving...';
    saveButton.disabled = true;

    try {
        const response = await fetch('/api/admin/walk-sheet-config', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(config)
        });

        const data = await response.json();
        console.log('Save response:', data);

        if (data.success) {
            showStatus('Walk sheet configuration saved successfully!', 'success');
            console.log('Configuration saved successfully');
            // Don't reload config here - the form already has the latest values
            // Just regenerate the preview
            generateWalkSheetPreview();
        } else {
            throw new Error(data.error || 'Failed to save');
        }
    } catch (error) {
        console.error('Save error:', error);
        showStatus(error.message || 'Failed to save walk sheet configuration', 'error');
    } finally {
        saveButton.textContent = originalText;
        saveButton.disabled = false;
    }
}

// Generate walk sheet preview
function generateWalkSheetPreview() {
    const title = document.getElementById('walk-sheet-title')?.value || 'Campaign Walk Sheet';
    const subtitle = document.getElementById('walk-sheet-subtitle')?.value || 'Door-to-Door Canvassing Form';
    const footer = document.getElementById('walk-sheet-footer')?.value || 'Thank you for your support!';
    
    let previewHTML = `
        <div class="ws-header">
            <h1 class="ws-title">${escapeHtml(title)}</h1>
            <p class="ws-subtitle">${escapeHtml(subtitle)}</p>
        </div>
    `;
    
    // Add QR codes section
    const qrCodesHTML = [];
    for (let i = 1; i <= 3; i++) {
        const urlInput = document.getElementById(`qr-code-${i}-url`);
        const labelInput = document.getElementById(`qr-code-${i}-label`);
        
        const url = urlInput?.value || '';
        const label = labelInput?.value || '';
        
        if (url) {
            qrCodesHTML.push(`
                <div class="ws-qr-item">
                    <div class="ws-qr-code" id="preview-qr-${i}">
                        <!-- QR code will be inserted here -->
                    </div>
                    <div class="ws-qr-label">${escapeHtml(label || `QR Code ${i}`)}</div>
                </div>
            `);
        }
    }
    
    if (qrCodesHTML.length > 0) {
        previewHTML += `
            <div class="ws-qr-section">
                ${qrCodesHTML.join('')}
            </div>
        `;
    }
    
    // Add form fields based on the main map form
    previewHTML += `
        <div class="ws-form-section">
            <div class="ws-form-row">
                <div class="ws-form-group">
                    <label class="ws-form-label">First Name</label>
                    <div class="ws-form-field"></div>
                </div>
                <div class="ws-form-group">
                    <label class="ws-form-label">Last Name</label>
                    <div class="ws-form-field"></div>
                </div>
            </div>
            
            <div class="ws-form-row">
                <div class="ws-form-group">
                    <label class="ws-form-label">Email</label>
                    <div class="ws-form-field"></div>
                </div>
                <div class="ws-form-group">
                    <label class="ws-form-label">Phone</label>
                    <div class="ws-form-field"></div>
                </div>
            </div>
            
            <div class="ws-form-row">
                <div class="ws-form-group">
                    <label class="ws-form-label">Address</label>
                    <div class="ws-form-field"></div>
                </div>
                <div class="ws-form-group">
                    <label class="ws-form-label">Unit Number</label>
                    <div class="ws-form-field"></div>
                </div>
            </div>
            
            <div class="ws-form-row">
                <div class="ws-form-group">
                    <label class="ws-form-label">Support Level</label>
                    <div class="ws-form-field circles">
                        <span class="ws-circle-option"><span class="ws-circle">1</span></span>
                        <span class="ws-circle-option"><span class="ws-circle">2</span></span>
                        <span class="ws-circle-option"><span class="ws-circle">3</span></span>
                        <span class="ws-circle-option"><span class="ws-circle">4</span></span>
                    </div>
                </div>
                <div class="ws-form-group">
                    <label class="ws-form-label">Sign Request</label>
                    <div class="ws-form-field circles">
                        <span class="ws-circle-option"><span class="ws-circle">Y</span> Yes</span>
                        <span class="ws-circle-option"><span class="ws-circle">N</span> No</span>
                    </div>
                </div>
            </div>
            
            <div class="ws-form-row">
                <div class="ws-form-group">
                    <label class="ws-form-label">Sign Size</label>
                    <div class="ws-form-field circles">
                        <span class="ws-circle-option"><span class="ws-circle">R</span></span>
                        <span class="ws-circle-option"><span class="ws-circle">L</span></span>
                        <span class="ws-circle-option"><span class="ws-circle">U</span></span>
                    </div>
                </div>
                <div class="ws-form-group">
                    <label class="ws-form-label">Visited Date</label>
                    <div class="ws-form-field"></div>
                </div>
            </div>
        </div>
        
        <div class="ws-notes-section">
            <div class="ws-notes-label">Notes & Comments</div>
            <div class="ws-notes-area"></div>
        </div>
    `;
    
    // Add footer
    if (footer) {
        previewHTML += `
            <div class="ws-footer">
                ${escapeHtml(footer)}
            </div>
        `;
    }
    
    // Update preview
    const previewContent = document.getElementById('walk-sheet-preview-content');
    if (previewContent) {
        previewContent.innerHTML = previewHTML;
        
        // Generate QR codes after DOM is updated
        setTimeout(() => {
            generatePreviewQRCodes();
        }, 100);
    } else {
        console.warn('Walk sheet preview content container not found');
    }
}

// Update the generatePreviewQRCodes function to use smaller size
async function generatePreviewQRCodes() {
    for (let i = 1; i <= 3; i++) {
        const urlInput = document.getElementById(`qr-code-${i}-url`);
        const url = urlInput?.value || '';
        const qrContainer = document.getElementById(`preview-qr-${i}`);
        
        if (url && qrContainer) {
            try {
                // Use our local QR code generation endpoint with size matching display
                const qrImageUrl = `/api/qr?text=${encodeURIComponent(url)}&size=200`; // Generate at higher res
                qrContainer.innerHTML = `<img src="${qrImageUrl}" alt="QR Code ${i}" style="width: 120px; height: 120px;">`; // Display smaller
            } catch (error) {
                console.error(`Failed to display QR code ${i}:`, error);
                qrContainer.innerHTML = '<div style="width: 120px; height: 120px; border: 2px dashed #ccc; display: flex; align-items: center; justify-content: center; font-size: 14px; color: #999;">QR Error</div>';
            }
        } else if (qrContainer) {
            // Clear empty QR containers
            qrContainer.innerHTML = '';
        }
    }
}


// Print walk sheet
function printWalkSheet() {
    // First generate fresh preview to ensure QR codes are generated
    generateWalkSheetPreview();

    // Wait for QR codes to generate, then print
    setTimeout(() => {
        const previewContent = document.getElementById('walk-sheet-preview-content');
        const clonedContent = previewContent.cloneNode(true);

        // Convert canvas elements to images for printing
        const canvases = previewContent.querySelectorAll('canvas');
        const clonedCanvases = clonedContent.querySelectorAll('canvas');

        canvases.forEach((canvas, index) => {
            if (canvas && clonedCanvases[index]) {
                const img = document.createElement('img');
                img.src = canvas.toDataURL('image/png');
                img.width = canvas.width;
                img.height = canvas.height;
                img.style.width = canvas.style.width || `${canvas.width}px`;
                img.style.height = canvas.style.height || `${canvas.height}px`;
                clonedCanvases[index].parentNode.replaceChild(img, clonedCanvases[index]);
            }
        });

        // Create a print-specific window
        const printWindow = window.open('', '_blank');

        printWindow.document.write(`
            <!DOCTYPE html>
            <html>
            <head>
                <title>Walk Sheet - Print</title>
                <link rel="stylesheet" href="/css/style.css">
                <link rel="stylesheet" href="/css/admin.css">
                <style>
                    @media print {
                        @page {
                            size: letter;
                            margin: 0;
                        }
                        body {
                            margin: 0;
                            padding: 0;
                        }
                        .walk-sheet-page {
                            width: 8.5in !important;
                            height: 11in !important;
                            padding: 0.5in !important;
                            margin: 0 !important;
                            box-shadow: none !important;
                            page-break-after: avoid !important;
                            transform: none !important;
                        }
                        .ws-qr-code img {
                            width: 100px !important;
                            height: 100px !important;
                            -webkit-print-color-adjust: exact;
                            print-color-adjust: exact;
                        }
                    }
                    @media screen {
                        body {
                            margin: 20px;
                            background: #f0f0f0;
                        }
                        .walk-sheet-page {
                            width: 8.5in;
                            height: 11in;
                            padding: 0.5in;
                            margin: 0 auto;
                            background: white;
                            box-shadow: 0 0 10px rgba(0,0,0,0.1);
                        }
                    }
                </style>
            </head>
            <body>
                <div class="walk-sheet-page">
                    ${clonedContent.innerHTML}
                </div>
            </body>
            </html>
        `);

        printWindow.document.close();

        printWindow.onload = function() {
            setTimeout(() => {
                printWindow.print();
                // User can close manually after printing
            }, 500);
        };
    }, 1000); // Give QR codes time to generate
}

// Load walk sheet configuration
async function loadWalkSheetConfig() {
    try {
        console.log('Loading walk sheet config...');
        const response = await fetch('/api/admin/walk-sheet-config');
        const data = await response.json();

        console.log('Loaded walk sheet config:', data);

        if (data.success) {
            // The config object contains the actual configuration
            const config = data.config || {};
            
            console.log('Config object:', config);

            // Populate form fields - use the exact field names from the backend
            const titleInput = document.getElementById('walk-sheet-title');
            const subtitleInput = document.getElementById('walk-sheet-subtitle');
            const footerInput = document.getElementById('walk-sheet-footer');

            console.log('Found form elements:', {
                title: !!titleInput,
                subtitle: !!subtitleInput,
                footer: !!footerInput
            });

            if (titleInput) {
                titleInput.value = config.walk_sheet_title || 'Campaign Walk Sheet';
                console.log('Set title to:', titleInput.value);
            }
            if (subtitleInput) {
                subtitleInput.value = config.walk_sheet_subtitle || 'Door-to-Door Canvassing Form';
                console.log('Set subtitle to:', subtitleInput.value);
            }
            if (footerInput) {
                footerInput.value = config.walk_sheet_footer || 'Thank you for your support!';
                console.log('Set footer to:', footerInput.value);
            }

            // Populate QR code fields
            for (let i = 1; i <= 3; i++) {
                const urlField = document.getElementById(`qr-code-${i}-url`);
                const labelField = document.getElementById(`qr-code-${i}-label`);

                console.log(`QR ${i} fields found:`, {
                    url: !!urlField,
                    label: !!labelField
                });

                if (urlField) {
                    urlField.value = config[`qr_code_${i}_url`] || '';
                    console.log(`Set QR ${i} URL to:`, urlField.value);
                }
                if (labelField) {
                    labelField.value = config[`qr_code_${i}_label`] || '';
                    console.log(`Set QR ${i} label to:`, labelField.value);
                }
            }

            console.log('Walk sheet config loaded successfully');
            
            // Show status message about data source
            if (data.source) {
                const sourceText = data.source === 'database' ? 'Walk sheet config loaded from database' :
                                 data.source === 'defaults' ? 'Using walk sheet defaults' :
                                 'Walk sheet config loaded';
                showStatus(sourceText, 'info');
            }
            
            return true;
        } else {
            console.error('Failed to load config:', data.error);
            showStatus('Failed to load walk sheet configuration', 'error');
            return false;
        }

    } catch (error) {
        console.error('Failed to load walk sheet config:', error);
        showStatus('Failed to load walk sheet configuration', 'error');
        return false;
    }
}

// Check if walk sheet section is visible and load config if needed
function checkAndLoadWalkSheetConfig() {
    const walkSheetSection = document.getElementById('walk-sheet');
    if (walkSheetSection && walkSheetSection.style.display !== 'none') {
        console.log('Walk sheet section is visible, loading config...');
        loadWalkSheetConfig().then((success) => {
            if (success) {
                generateWalkSheetPreview();
            }
        });
    }
}

// Add a function to force load config when walk sheet section is accessed
function showWalkSheetSection() {
    const walkSheetSection = document.getElementById('walk-sheet');
    const startLocationSection = document.getElementById('start-location');
    
    if (startLocationSection) {
        startLocationSection.style.display = 'none';
    }
    
    if (walkSheetSection) {
        walkSheetSection.style.display = 'block';
        
        // Load config after section is shown
        setTimeout(() => {
            loadWalkSheetConfig().then((success) => {
                if (success) {
                    generateWalkSheetPreview();
                }
            });
        }, 100); // Small delay to ensure DOM is ready
    }
}

// Add event listener to trigger config load when walking sheet nav is clicked
document.addEventListener('DOMContentLoaded', function() {
    // Add additional event listener for walk sheet nav
    const walkSheetNav = document.querySelector('.admin-nav a[href="#walk-sheet"]');
    if (walkSheetNav) {
        walkSheetNav.addEventListener('click', function(e) {
            e.preventDefault();
            showWalkSheetSection();
            
            // Update nav state
            document.querySelectorAll('.admin-nav a').forEach(link => {
                link.classList.remove('active');
            });
            this.classList.add('active');
        });
    }
});

// Handle logout
async function handleLogout() {
    if (!confirm('Are you sure you want to logout?')) {
        return;
    }
    
    try {
        const response = await fetch('/api/auth/logout', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            }
        });
        
        if (response.ok) {
            window.location.href = '/login.html';
        } else {
            showStatus('Logout failed. Please try again.', 'error');
        }
    } catch (error) {
        console.error('Logout error:', error);
        showStatus('Logout failed. Please try again.', 'error');
    }
}

// Show status message
function showStatus(message, type = 'info') {
    let container = document.getElementById('status-container');
    
    // Create container if it doesn't exist
    if (!container) {
        container = document.createElement('div');
        container.id = 'status-container';
        container.className = 'status-container';
        // Ensure proper z-index even if CSS hasn't loaded
        container.style.zIndex = '12300';
        document.body.appendChild(container);
    }
    
    const messageDiv = document.createElement('div');
    messageDiv.className = `status-message ${type}`;
    messageDiv.textContent = message;
    
    // Add click to dismiss functionality
    messageDiv.addEventListener('click', () => {
        messageDiv.remove();
    });
    
    // Add a small close button for better UX
    const closeBtn = document.createElement('span');
    closeBtn.innerHTML = ' ×';
    closeBtn.style.float = 'right';
    closeBtn.style.fontWeight = 'bold';
    closeBtn.style.marginLeft = '10px';
    closeBtn.style.cursor = 'pointer';
    closeBtn.setAttribute('title', 'Click to dismiss');
    messageDiv.appendChild(closeBtn);
    
    container.appendChild(messageDiv);
    
    // Auto-remove after 5 seconds
    setTimeout(() => {
        if (messageDiv.parentNode) {
            messageDiv.remove();
        }
    }, 5000);
}

// Escape HTML
function escapeHtml(text) {
    if (text === null || text === undefined) {
        return '';
    }
    const div = document.createElement('div');
    div.textContent = String(text);
    return div.innerHTML;
}

// Debounce function for input events
function debounce(func, wait) {
    let timeout;
    return function executedFunction(...args) {
        const later = () => {
            clearTimeout(timeout);
            func(...args);
        };
        clearTimeout(timeout);
        timeout = setTimeout(later, wait);
    };
}

// Add shift management functions
async function loadAdminShifts() {
    const list = document.getElementById('admin-shifts-list');
    if (list) {
        list.innerHTML = '<p>Loading shifts...</p>';
    }
    
    try {
        console.log('Loading admin shifts...');
        const response = await fetch('/api/shifts/admin');
        const data = await response.json();
        
        if (data.success) {
            console.log('Successfully loaded', data.shifts.length, 'shifts');
            displayAdminShifts(data.shifts);
        } else {
            console.error('Failed to load shifts:', data.error);
            if (list) {
                list.innerHTML = '<p>Failed to load shifts</p>';
            }
            showStatus('Failed to load shifts', 'error');
        }
    } catch (error) {
        console.error('Error loading admin shifts:', error);
        if (list) {
            list.innerHTML = '<p>Error loading shifts</p>';
        }
        showStatus('Failed to load shifts', 'error');
    }
}

function displayAdminShifts(shifts) {
    const list = document.getElementById('admin-shifts-list');
    
    if (!list) {
        console.error('Admin shifts list element not found');
        return;
    }
    
    if (shifts.length === 0) {
        list.innerHTML = '<p>No shifts created yet.</p>';
        return;
    }
    
    list.innerHTML = shifts.map(shift => {
        const shiftDate = createLocalDate(shift.Date);
        const signupCount = shift.signups ? shift.signups.length : 0;
        
        console.log(`Shift "${shift.Title}" (ID: ${shift.ID}) has ${signupCount} volunteers:`, shift.signups?.map(s => s['User Email']) || []);
        
        return `
            <div class="shift-admin-item">
                <div>
                    <h4>${escapeHtml(shift.Title)}</h4>
                    <p>📅 ${shiftDate.toLocaleDateString()} | ⏰ ${shift['Start Time']} - ${shift['End Time']}</p>
                    <p>📍 ${escapeHtml(shift.Location || 'TBD')}</p>
                    <p>👥 ${signupCount}/${shift['Max Volunteers']} volunteers</p>
                    <p class="status-${(shift.Status || 'open').toLowerCase()}">${shift.Status || 'Open'}</p>
                </div>
                <div class="shift-actions">
                    <button class="btn btn-primary btn-sm manage-volunteers-btn" data-shift-id="${shift.ID}" data-shift='${JSON.stringify(shift).replace(/'/g, "&#39;")}'>Manage Volunteers</button>
                    <button class="btn btn-secondary btn-sm edit-shift-btn" data-shift-id="${shift.ID}">Edit</button>
                    <button class="btn btn-danger btn-sm delete-shift-btn" data-shift-id="${shift.ID}">Delete</button>
                </div>
            </div>
        `;
    }).join('');
    
    // Add event listeners using delegation
    setupShiftActionListeners();
}

// Fix the setupShiftActionListeners function
function setupShiftActionListeners() {
    const list = document.getElementById('admin-shifts-list');
    if (!list) return;

    // Remove any existing listeners to avoid duplicates
    const newList = list.cloneNode(true);
    list.parentNode.replaceChild(newList, list);
    
    // Get the updated reference
    const updatedList = document.getElementById('admin-shifts-list');

    updatedList.addEventListener('click', function(e) {
        if (e.target.classList.contains('delete-shift-btn')) {
            const shiftId = e.target.getAttribute('data-shift-id');
            console.log('Delete button clicked for shift:', shiftId);
            deleteShift(shiftId);
        } else if (e.target.classList.contains('edit-shift-btn')) {
            const shiftId = e.target.getAttribute('data-shift-id');
            console.log('Edit button clicked for shift:', shiftId);
            editShift(shiftId);
        } else if (e.target.classList.contains('manage-volunteers-btn')) {
            const shiftId = e.target.getAttribute('data-shift-id');
            const shiftData = JSON.parse(e.target.getAttribute('data-shift').replace(/&#39;/g, "'"));
            console.log('Manage volunteers clicked for shift:', shiftId);
            showShiftUserModal(shiftId, shiftData);
        }
    });
}

// Update the deleteShift function (remove window. prefix)
async function deleteShift(shiftId) {
    if (!confirm('Are you sure you want to delete this shift? All signups will be cancelled.')) {
        return;
    }
    
    try {
        const response = await fetch(`/api/shifts/admin/${shiftId}`, {
            method: 'DELETE'
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('Shift deleted successfully', 'success');
            await loadAdminShifts();
            console.log('Refreshed shifts list after deleting shift');
        } else {
            showStatus(data.error || 'Failed to delete shift', 'error');
        }
    } catch (error) {
        console.error('Error deleting shift:', error);
        showStatus('Failed to delete shift', 'error');
    }
}

// Update editShift function (remove window. prefix)
function editShift(shiftId) {
    showStatus('Edit functionality coming soon', 'info');
}

// Add function to create shift
async function createShift(e) {
    e.preventDefault();
    
    const formData = {
        title: document.getElementById('shift-title').value,
        description: document.getElementById('shift-description').value,
        date: document.getElementById('shift-date').value,
        startTime: document.getElementById('shift-start').value,
        endTime: document.getElementById('shift-end').value,
        location: document.getElementById('shift-location').value,
        maxVolunteers: document.getElementById('shift-max-volunteers').value
    };
    
    try {
        const response = await fetch('/api/shifts/admin', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(formData)
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('Shift created successfully', 'success');
            document.getElementById('shift-form').reset();
            await loadAdminShifts();
            console.log('Refreshed shifts list after creating new shift');
        } else {
            showStatus(data.error || 'Failed to create shift', 'error');
        }
    } catch (error) {
        console.error('Error creating shift:', error);
        showStatus('Failed to create shift', 'error');
    }
}

function clearShiftForm() {
    const form = document.getElementById('shift-form');
    if (form) {
        form.reset();
        showStatus('Form cleared', 'info');
    }
}

// User Management Functions
async function loadUsers() {
    const loadingEl = document.getElementById('users-loading');
    const emptyEl = document.getElementById('users-empty');
    const tableBody = document.getElementById('users-table-body');
    
    if (loadingEl) loadingEl.style.display = 'block';
    if (emptyEl) emptyEl.style.display = 'none';
    if (tableBody) tableBody.innerHTML = '';
    
    try {
        const response = await fetch('/api/users');
        const data = await response.json();
        
        if (loadingEl) loadingEl.style.display = 'none';
        
        if (data.success && data.users) {
            displayUsers(data.users);
        } else {
            throw new Error(data.error || 'Failed to load users');
        }
        
    } catch (error) {
        console.error('Error loading users:', error);
        if (loadingEl) loadingEl.style.display = 'none';
        if (emptyEl) {
            emptyEl.textContent = 'Failed to load users';
            emptyEl.style.display = 'block';
        }
        showStatus('Failed to load users', 'error');
    }
}

function displayUsers(users) {
    const container = document.querySelector('.users-list');
    if (!container) return;

    // Find or create the users table container, preserving the header
    let usersTableContainer = container.querySelector('.users-table-container');
    if (!usersTableContainer) {
        // If container doesn't exist, create it after the header
        const header = container.querySelector('.users-list-header');
        usersTableContainer = document.createElement('div');
        usersTableContainer.className = 'users-table-container';
        
        if (header && header.nextSibling) {
            container.insertBefore(usersTableContainer, header.nextSibling);
        } else if (header) {
            container.appendChild(usersTableContainer);
        } else {
            container.appendChild(usersTableContainer);
        }
    }

    if (!users || users.length === 0) {
        usersTableContainer.innerHTML = '<p class="empty-message">No users found.</p>';
        return;
    }

    const tableHtml = `
        <div class="users-table-wrapper">
            <table class="users-table">
                <thead>
                    <tr>
                        <th>Email</th>
                        <th>Name</th>
                        <th>Role</th>
                        <th>Created</th>
                        <th>Actions</th>
                    </tr>
                </thead>
                <tbody id="users-table-body">
                    ${users.map(user => {
                        const createdDate = user.created_at || user['Created At'] || user.createdAt;
                        const formattedDate = createdDate ? new Date(createdDate).toLocaleDateString() : 'N/A';
                        const isAdmin = user.admin || user.Admin || false;
                        const userType = user.UserType || user.userType || (isAdmin ? 'admin' : 'user');
                        const userId = user.Id || user.id || user.ID;
                        
                        // Handle expiration info
                        let expirationInfo = '';
                        if (user.ExpiresAt) {
                            const expirationDate = new Date(user.ExpiresAt);
                            const now = new Date();
                            const daysUntilExpiration = Math.floor((expirationDate - now) / (1000 * 60 * 60 * 24));
                            
                            if (daysUntilExpiration < 0) {
                                expirationInfo = `<span class="expiration-info expiration-warning">Expired ${Math.abs(daysUntilExpiration)} days ago</span>`;
                            } else if (daysUntilExpiration <= 3) {
                                expirationInfo = `<span class="expiration-info expiration-warning">Expires in ${daysUntilExpiration} day${daysUntilExpiration !== 1 ? 's' : ''}</span>`;
                            } else {
                                expirationInfo = `<span class="expiration-info">Expires: ${expirationDate.toLocaleDateString()}</span>`;
                            }
                        }

                        return `
                            <tr ${user.ExpiresAt && new Date(user.ExpiresAt) < new Date() ? 'class="expired"' : (user.ExpiresAt && new Date(user.ExpiresAt) - new Date() < 3 * 24 * 60 * 60 * 1000 ? 'class="expires-soon"' : '')}>
                                <td data-label="Email">${escapeHtml(user.email || user.Email || 'N/A')}</td>
                                <td data-label="Name">${escapeHtml(user.name || user.Name || 'N/A')}</td>
                                <td data-label="Role">
                                    <span class="user-role ${userType}">
                                        ${userType.charAt(0).toUpperCase() + userType.slice(1)}
                                    </span>
                                    ${expirationInfo}
                                </td>
                                <td data-label="Created">${formattedDate}</td>
                                <td data-label="Actions">
                                    <div class="user-actions">
                                        <button class="btn btn-secondary send-login-btn" data-user-id="${userId}" data-user-email="${escapeHtml(user.email || user.Email)}">
                                            Send Login Details
                                        </button>
                                        <button class="btn btn-danger delete-user-btn" data-user-id="${userId}" data-user-email="${escapeHtml(user.email || user.Email)}">
                                            Delete
                                        </button>
                                    </div>
                                </td>
                            </tr>
                        `;
                    }).join('')}
                </tbody>
            </table>
        </div>
        <p id="users-loading" class="loading-message" style="display: none;">Loading...</p>
    `;

    usersTableContainer.innerHTML = tableHtml;
    setupUserActionListeners();
}

function setupUserActionListeners() {
    const container = document.querySelector('.users-list');
    if (!container) return;

    // Remove existing event listeners by cloning the container
    const newContainer = container.cloneNode(true);
    container.parentNode.replaceChild(newContainer, container);
    
    // Get the updated reference
    const updatedContainer = document.querySelector('.users-list');

    updatedContainer.addEventListener('click', function(e) {
        if (e.target.classList.contains('delete-user-btn')) {
            const userId = e.target.getAttribute('data-user-id');
            const userEmail = e.target.getAttribute('data-user-email');
            console.log('Delete button clicked for user:', userId);
            deleteUser(userId, userEmail);
        } else if (e.target.classList.contains('send-login-btn')) {
            const userId = e.target.getAttribute('data-user-id');
            const userEmail = e.target.getAttribute('data-user-email');
            console.log('Send login details button clicked for user:', userId);
            sendLoginDetailsToUser(userId, userEmail);
        } else if (e.target.id === 'email-all-users-btn') {
            console.log('Email All Users button clicked');
            showEmailUsersModal();
        }
    });
}

async function deleteUser(userId, userEmail) {
    if (!confirm(`Are you sure you want to delete user "${userEmail}"? This action cannot be undone.`)) {
        return;
    }
    
    try {
        const response = await fetch(`/api/users/${userId}`, {
            method: 'DELETE'
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus(`User "${userEmail}" deleted successfully`, 'success');
            loadUsers(); // Reload the users list
        } else {
            throw new Error(data.error || 'Failed to delete user');
        }
        
    } catch (error) {
        console.error('Error deleting user:', error);
        showStatus(`Failed to delete user: ${error.message}`, 'error');
    }
}

async function sendLoginDetailsToUser(userId, userEmail) {
    if (!confirm(`Send login details to "${userEmail}"?`)) {
        return;
    }
    
    try {
        const response = await fetch(`/api/users/${userId}/send-login-details`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            }
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus(`Login details sent to "${userEmail}" successfully`, 'success');
        } else {
            throw new Error(data.error || 'Failed to send login details');
        }
        
    } catch (error) {
        console.error('Error sending login details:', error);
        showStatus(`Failed to send login details: ${error.message}`, 'error');
    }
}

async function createUser(e) {
    e.preventDefault();
    
    const email = document.getElementById('user-email').value.trim();
    const password = document.getElementById('user-password').value;
    const name = document.getElementById('user-name').value.trim();
    const userType = document.getElementById('user-type').value;
    const expireDays = userType === 'temp' ? 
        parseInt(document.getElementById('user-expire-days').value) : null;
    const admin = document.getElementById('user-is-admin').checked;
    
    if (!email || !password) {
        showStatus('Email and password are required', 'error');
        return;
    }
    
    if (password.length < 6) {
        showStatus('Password must be at least 6 characters long', 'error');
        return;
    }
    
    if (userType === 'temp' && (!expireDays || expireDays < 1 || expireDays > 365)) {
        showStatus('Expiration days must be between 1 and 365 for temporary users', 'error');
        return;
    }
    
    try {
        const userData = {
            email,
            password,
            name: name || '',
            isAdmin: userType === 'admin' || admin,
            userType,
            expireDays
        };
        
        const response = await fetch('/api/users', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(userData)
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('User created successfully', 'success');
            clearUserForm();
            loadUsers(); // Reload the users list
        } else {
            throw new Error(data.error || 'Failed to create user');
        }
        
    } catch (error) {
        console.error('Error creating user:', error);
        showStatus(`Failed to create user: ${error.message}`, 'error');
    }
}

function clearUserForm() {
    const form = document.getElementById('create-user-form');
    if (form) {
        form.reset();
        
        // Reset user type to default
        const userTypeSelect = document.getElementById('user-type');
        if (userTypeSelect) {
            userTypeSelect.value = 'user';
        }
        
        // Hide expiration group
        const expirationGroup = document.getElementById('expiration-group');
        if (expirationGroup) {
            expirationGroup.style.display = 'none';
        }
        
        // Re-enable admin checkbox
        const isAdminCheckbox = document.getElementById('user-is-admin');
        if (isAdminCheckbox) {
            isAdminCheckbox.disabled = false;
        }
        
        showStatus('User form cleared', 'info');
    }
}

// Email All Users Functions
let allUsersData = [];

async function showEmailUsersModal() {
    // Load current users data
    try {
        const response = await fetch('/api/users');
        const data = await response.json();
        
        if (data.success && data.users) {
            allUsersData = data.users;
            
            // Update recipients count
            const recipientsCount = document.getElementById('recipients-count');
            if (recipientsCount) {
                recipientsCount.textContent = `${allUsersData.length}`;
            }
        }
    } catch (error) {
        console.error('Error loading users for email:', error);
        showStatus('Failed to load user data', 'error');
        return;
    }
    
    // Show modal
    const modal = document.getElementById('email-users-modal');
    if (modal) {
        modal.style.display = 'flex';
        
        // Clear previous content
        document.getElementById('email-subject').value = '';
        document.getElementById('email-content').innerHTML = '';
        document.getElementById('show-preview').checked = false;
        document.getElementById('email-preview').style.display = 'none';
    }
}

function closeEmailUsersModal() {
    const modal = document.getElementById('email-users-modal');
    if (modal) {
        modal.style.display = 'none';
    }
}

function setupRichTextEditor() {
    const toolbar = document.querySelector('.rich-text-toolbar');
    const editor = document.getElementById('email-content');
    
    if (!toolbar || !editor) return;
    
    // Handle toolbar button clicks
    toolbar.addEventListener('click', (e) => {
        if (e.target.classList.contains('toolbar-btn')) {
            e.preventDefault();
            const command = e.target.getAttribute('data-command');
            
            if (command === 'createLink') {
                const url = prompt('Enter the URL:');
                if (url) {
                    document.execCommand(command, false, url);
                }
            } else {
                document.execCommand(command, false, null);
            }
            
            // Update preview if visible
            updateEmailPreview();
        }
    });
    
    // Update preview on content change
    editor.addEventListener('input', updateEmailPreview);
    
    // Handle preview toggle
    const showPreviewCheckbox = document.getElementById('show-preview');
    if (showPreviewCheckbox) {
        showPreviewCheckbox.addEventListener('change', togglePreview);
    }
    
    // Update preview when subject changes
    const subjectInput = document.getElementById('email-subject');
    if (subjectInput) {
        subjectInput.addEventListener('input', updateEmailPreview);
    }
}

function togglePreview() {
    const preview = document.getElementById('email-preview');
    const checkbox = document.getElementById('show-preview');
    
    if (preview && checkbox) {
        if (checkbox.checked) {
            preview.style.display = 'block';
            updateEmailPreview();
        } else {
            preview.style.display = 'none';
        }
    }
}

function updateEmailPreview() {
    const previewSubject = document.getElementById('preview-subject');
    const previewBody = document.getElementById('preview-body');
    const subjectInput = document.getElementById('email-subject');
    const contentEditor = document.getElementById('email-content');
    
    if (previewSubject && subjectInput) {
        previewSubject.textContent = subjectInput.value || 'Your subject will appear here';
    }
    
    if (previewBody && contentEditor) {
        const content = contentEditor.innerHTML || 'Your message will appear here';
        previewBody.innerHTML = content;
    }
}

async function sendEmailToAllUsers(e) {
    e.preventDefault();
    
    const subject = document.getElementById('email-subject').value.trim();
    const content = document.getElementById('email-content').innerHTML.trim();
    
    if (!subject) {
        showStatus('Please enter an email subject', 'error');
        return;
    }
    
    if (!content || content === '<br>' || content === '') {
        showStatus('Please enter email content', 'error');
        return;
    }
    
    if (allUsersData.length === 0) {
        showStatus('No users found to email', 'error');
        return;
    }
    
    const confirmMessage = `Send this email to all ${allUsersData.length} users?`;
    if (!confirm(confirmMessage)) {
        return;
    }

    // Initialize progress tracking
    initializeEmailProgress(allUsersData.length);

    try {
        const response = await fetch('/api/users/email-all', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                subject: subject,
                content: content
            })
        });
        
        const data = await response.json();
        
        if (data.success) {
            // Display detailed results
            updateEmailProgress(data.results);
            showStatus(data.message, 'success');
            console.log('Email results:', data.results);
        } else {
            showEmailError(data.error || 'Failed to send emails');
            if (data.details) {
                console.error('Failed email details:', data.details);
            }
        }
    } catch (error) {
        console.error('Error sending emails to all users:', error);
        showEmailError('Failed to send emails - Network error');
    }
}

// Initialize email progress display
function initializeEmailProgress(totalCount) {
    const progressContainer = document.getElementById('email-progress-container');
    const statusList = document.getElementById('email-status-list');
    const pendingCountEl = document.getElementById('pending-count');
    const successCountEl = document.getElementById('success-count');
    const errorCountEl = document.getElementById('error-count');
    const progressBar = document.getElementById('email-progress-bar');
    const progressText = document.getElementById('progress-text');
    const closeBtn = document.getElementById('close-progress-btn');
    
    // Show progress container
    progressContainer.classList.add('show');
    
    // Reset counters
    pendingCountEl.textContent = totalCount;
    successCountEl.textContent = '0';
    errorCountEl.textContent = '0';
    
    // Reset progress bar
    progressBar.style.width = '0%';
    progressBar.classList.remove('complete', 'error');
    progressText.textContent = '0%';
    
    // Clear status list
    statusList.innerHTML = '';
    
    // Hide close button initially
    closeBtn.style.display = 'none';
    
    // Add status items for each user
    allUsersData.forEach(user => {
        const statusItem = document.createElement('div');
        statusItem.className = 'email-status-item';
        statusItem.innerHTML = `
            <div class="email-status-recipient">${user.Name || user.Email}</div>
            <div class="email-status-result pending">
                <div class="progress-spinner"></div>
                <span>Sending...</span>
            </div>
        `;
        statusList.appendChild(statusItem);
    });
}

// Update progress with results
function updateEmailProgress(results) {
    const statusList = document.getElementById('email-status-list');
    const pendingCountEl = document.getElementById('pending-count');
    const successCountEl = document.getElementById('success-count');
    const errorCountEl = document.getElementById('error-count');
    const progressBar = document.getElementById('email-progress-bar');
    const progressText = document.getElementById('progress-text');
    const closeBtn = document.getElementById('close-progress-btn');
    
    const successful = results.successful || [];
    const failed = results.failed || [];
    const total = results.total || (successful.length + failed.length);
    
    // Update counters
    successCountEl.textContent = successful.length;
    errorCountEl.textContent = failed.length;
    pendingCountEl.textContent = '0';
    
    // Update progress bar
    const percentage = ((successful.length + failed.length) / total * 100).toFixed(1);
    progressBar.style.width = percentage + '%';
    progressText.textContent = percentage + '%';
    
    if (failed.length > 0) {
        progressBar.classList.add('error');
    } else {
        progressBar.classList.add('complete');
    }
    
    // Update individual status items
    const statusItems = statusList.children;
    
    // Update successful emails
    successful.forEach(result => {
        const statusItem = Array.from(statusItems).find(item => 
            item.querySelector('.email-status-recipient').textContent.includes(result.email) ||
            item.querySelector('.email-status-recipient').textContent.includes(result.name)
        );
        if (statusItem) {
            statusItem.querySelector('.email-status-result').innerHTML = `
                <span class="email-status-result success">✓ Sent</span>
            `;
        }
    });
    
    // Update failed emails
    failed.forEach(result => {
        const statusItem = Array.from(statusItems).find(item => 
            item.querySelector('.email-status-recipient').textContent.includes(result.email) ||
            item.querySelector('.email-status-recipient').textContent.includes(result.name)
        );
        if (statusItem) {
            statusItem.querySelector('.email-status-result').innerHTML = `
                <span class="email-status-result error" title="${result.error || 'Unknown error'}">✗ Failed</span>
            `;
        }
    });
    
    // Show close button
    closeBtn.style.display = 'block';
    closeBtn.onclick = () => {
        document.getElementById('email-progress-container').classList.remove('show');
        closeEmailUsersModal();
    };
}

// Show email error
function showEmailError(message) {
    const progressContainer = document.getElementById('email-progress-container');
    const progressBar = document.getElementById('email-progress-bar');
    const progressText = document.getElementById('progress-text');
    const closeBtn = document.getElementById('close-progress-btn');
    
    // Show progress container if not visible
    progressContainer.classList.add('show');
    
    // Update progress bar to show error
    progressBar.style.width = '100%';
    progressBar.classList.add('error');
    progressText.textContent = 'Error';
    
    // Show close button
    closeBtn.style.display = 'block';
    closeBtn.onclick = () => {
        progressContainer.classList.remove('show');
    };
    
    showStatus(message, 'error');
}

// Initialize NocoDB links in admin panel
async function initializeNocodbLinks() {
    console.log('Starting NocoDB links initialization...');
    
    try {
        // Since we're in the admin panel, the user is already verified as admin
        // by the requireAdmin middleware. Let's get the URLs from the server directly.
        console.log('Fetching NocoDB URLs for admin panel...');
        const configResponse = await fetch('/api/admin/nocodb-urls');
        
        if (!configResponse.ok) {
            throw new Error(`NocoDB URLs fetch failed: ${configResponse.status} ${configResponse.statusText}`);
        }
        
        const config = await configResponse.json();
        console.log('NocoDB URLs received:', config);
        
        if (config.success && config.nocodbUrls) {
            console.log('Setting up NocoDB links with URLs:', config.nocodbUrls);
            
            // Set up admin dashboard NocoDB links
            setAdminNocodbLink('admin-nocodb-view-link', config.nocodbUrls.viewUrl);
            setAdminNocodbLink('admin-nocodb-login-link', config.nocodbUrls.loginSheet);
            setAdminNocodbLink('admin-nocodb-settings-link', config.nocodbUrls.settingsSheet);
            setAdminNocodbLink('admin-nocodb-shifts-link', config.nocodbUrls.shiftsSheet);
            setAdminNocodbLink('admin-nocodb-signups-link', config.nocodbUrls.shiftSignupsSheet);
            
            console.log('NocoDB links initialized in admin panel');
        } else {
            console.warn('No NocoDB URLs found in admin config response');
            // Hide the NocoDB section if no URLs are available
            const nocodbSection = document.getElementById('nocodb-links');
            const nocodbNav = document.querySelector('.admin-nav a[href="#nocodb-links"]');
            if (nocodbSection) {
                nocodbSection.style.display = 'none';
                console.log('Hidden NocoDB section');
            }
            if (nocodbNav) {
                nocodbNav.style.display = 'none';
                console.log('Hidden NocoDB nav link');
            }
        }
    } catch (error) {
        console.error('Error initializing NocoDB links in admin panel:', error);
        // Hide the NocoDB section on error
        const nocodbSection = document.getElementById('nocodb-links');
        const nocodbNav = document.querySelector('.admin-nav a[href="#nocodb-links"]');
        if (nocodbSection) {
            nocodbSection.style.display = 'none';
            console.log('Hidden NocoDB section due to error');
        }
        if (nocodbNav) {
            nocodbNav.style.display = 'none';
            console.log('Hidden NocoDB nav link due to error');
        }
    }
}

// Helper function to set admin NocoDB link href
function setAdminNocodbLink(elementId, url) {
    console.log(`Setting up NocoDB link: ${elementId} = ${url}`);
    const element = document.getElementById(elementId);
    
    if (element && url) {
        element.href = url;
        element.style.display = 'inline-flex';
        // Remove any disabled state
        element.classList.remove('btn-disabled');
        element.removeAttribute('disabled');
        console.log(`✓ Successfully set up ${elementId}`);
    } else if (element) {
        element.style.display = 'none';
        // Add disabled state if no URL
        element.classList.add('btn-disabled');
        element.setAttribute('disabled', 'disabled');
        element.href = '#';
        console.log(`⚠ Disabled ${elementId} - no URL provided`);
    } else {
        console.error(`✗ Element not found: ${elementId}`);
    }
}

// Initialize Listmonk links in admin panel
async function initializeListmonkLinks() {
    console.log('Starting Listmonk links initialization...');
    
    try {
        // Since we're in the admin panel, the user is already verified as admin
        // by the requireAdmin middleware. Let's get the URLs from the server directly.
        console.log('Fetching Listmonk URLs for admin panel...');
        const configResponse = await fetch('/api/admin/listmonk-urls');
        
        if (!configResponse.ok) {
            throw new Error(`Listmonk URLs fetch failed: ${configResponse.status} ${configResponse.statusText}`);
        }
        
        const config = await configResponse.json();
        console.log('Listmonk URLs received:', config);
        
        if (config.success && config.listmonkUrls) {
            console.log('Setting up Listmonk links with URLs:', config.listmonkUrls);
            
            // Set up admin dashboard Listmonk links
            setAdminListmonkLink('admin-listmonk-admin-link', config.listmonkUrls.adminUrl);
            setAdminListmonkLink('admin-listmonk-lists-link', config.listmonkUrls.listsUrl);
            setAdminListmonkLink('admin-listmonk-campaigns-link', config.listmonkUrls.campaignsUrl);
            setAdminListmonkLink('admin-listmonk-subscribers-link', config.listmonkUrls.subscribersUrl);
            setAdminListmonkLink('admin-listmonk-settings-link', config.listmonkUrls.settingsUrl);
            
            console.log('Listmonk links initialized in admin panel');
        } else {
            console.warn('No Listmonk URLs found in admin config response');
            // Hide the Listmonk section if no URLs are available
            const listmonkSection = document.getElementById('listmonk-links');
            const listmonkNav = document.querySelector('.admin-nav a[href="#listmonk-links"]');
            if (listmonkSection) {
                listmonkSection.style.display = 'none';
                console.log('Hidden Listmonk section');
            }
            if (listmonkNav) {
                listmonkNav.style.display = 'none';
                console.log('Hidden Listmonk nav link');
            }
        }
    } catch (error) {
        console.error('Error initializing Listmonk links in admin panel:', error);
        // Hide the Listmonk section on error
        const listmonkSection = document.getElementById('listmonk-links');
        const listmonkNav = document.querySelector('.admin-nav a[href="#listmonk-links"]');
        if (listmonkSection) {
            listmonkSection.style.display = 'none';
            console.log('Hidden Listmonk section due to error');
        }
        if (listmonkNav) {
            listmonkNav.style.display = 'none';
            console.log('Hidden Listmonk nav link due to error');
        }
    }
}

// Helper function to set admin Listmonk link href
function setAdminListmonkLink(elementId, url) {
    console.log(`Setting up Listmonk link: ${elementId} = ${url}`);
    const element = document.getElementById(elementId);
    
    if (element && url) {
        element.href = url;
        element.style.display = 'inline-flex';
        // Remove any disabled state
        element.classList.remove('btn-disabled');
        element.removeAttribute('disabled');
        console.log(`✓ Successfully set up ${elementId}`);
    } else if (element) {
        element.style.display = 'none';
        // Add disabled state if no URL
        element.classList.add('btn-disabled');
        element.setAttribute('disabled', 'disabled');
        element.href = '#';
        console.log(`⚠ Disabled ${elementId} - no URL provided`);
    } else {
        console.error(`✗ Element not found: ${elementId}`);
    }
}

// Shift User Management Functions
let currentShiftData = null;
let allUsers = [];

// Load all users for the dropdown
async function loadAllUsers() {
    try {
        const response = await fetch('/api/users');
        const data = await response.json();
        
        if (data.success) {
            allUsers = data.users;
            populateUserSelect();
        } else {
            console.error('Failed to load users:', data.error);
        }
    } catch (error) {
        console.error('Error loading users:', error);
    }
}

// Populate user select dropdown
function populateUserSelect() {
    const select = document.getElementById('user-select');
    if (!select) return;
    
    // Clear existing options except the first one
    select.innerHTML = '<option value="">Select a user...</option>';
    
    allUsers.forEach(user => {
        const option = document.createElement('option');
        option.value = user.email || user.Email;
        option.textContent = `${user.name || user.Name || ''} (${user.email || user.Email})`;
        select.appendChild(option);
    });
}

// Show the shift user management modal
async function showShiftUserModal(shiftId, shiftData) {
    currentShiftData = { ...shiftData, ID: shiftId };
    
    // Update modal title and info
    document.getElementById('modal-shift-title').textContent = shiftData.Title;
    const shiftDate = createLocalDate(shiftData.Date);
    document.getElementById('modal-shift-details').textContent = 
        `${shiftDate.toLocaleDateString()} | ${shiftData['Start Time']} - ${shiftData['End Time']} | ${shiftData.Location || 'TBD'}`;
    
    // Load users if not already loaded
    if (allUsers.length === 0) {
        await loadAllUsers();
    }
    
    // Display current volunteers
    displayCurrentVolunteers(shiftData.signups || []);
    
    // Show modal
    document.getElementById('shift-user-modal').style.display = 'flex';
}

// Display current volunteers in the modal
function displayCurrentVolunteers(volunteers) {
    const container = document.getElementById('current-volunteers-list');
    
    if (!volunteers || volunteers.length === 0) {
        container.innerHTML = '<div class="no-volunteers">No volunteers signed up yet.</div>';
        return;
    }
    
    container.innerHTML = volunteers.map(volunteer => `
        <div class="volunteer-item">
            <div class="volunteer-info">
                <div class="volunteer-name">${escapeHtml(volunteer['User Name'] || volunteer['User Email'] || 'Unknown')}</div>
                <div class="volunteer-email">${escapeHtml(volunteer['User Email'])}</div>
            </div>
            <div class="volunteer-actions">
                <button class="btn btn-danger btn-sm remove-volunteer-btn" 
                        data-volunteer-id="${volunteer.ID || volunteer.id}" 
                        data-volunteer-email="${volunteer['User Email']}">
                    Remove
                </button>
            </div>
        </div>
    `).join('');
    
    // Add event listeners for remove buttons
    setupVolunteerActionListeners();
}

// Setup event listeners for volunteer actions
function setupVolunteerActionListeners() {
    const container = document.getElementById('current-volunteers-list');
    
    container.addEventListener('click', function(e) {
        if (e.target.classList.contains('remove-volunteer-btn')) {
            const volunteerId = e.target.getAttribute('data-volunteer-id');
            const volunteerEmail = e.target.getAttribute('data-volunteer-email');
            removeVolunteerFromShift(volunteerId, volunteerEmail);
        }
    });
}

// Add user to shift
async function addUserToShift() {
    const userSelect = document.getElementById('user-select');
    const userEmail = userSelect.value;
    
    if (!userEmail) {
        showStatus('Please select a user to add', 'error');
        return;
    }
    
    if (!currentShiftData) {
        showStatus('No shift selected', 'error');
        return;
    }
    
    try {
        const response = await fetch(`/api/shifts/admin/${currentShiftData.ID}/add-user`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({ userEmail })
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('User successfully added to shift', 'success');
            userSelect.value = ''; // Clear selection
            
            // Refresh the shift data and reload volunteers
            await refreshCurrentShiftData();
            console.log('Refreshed shift data after adding user');
        } else {
            showStatus(data.error || 'Failed to add user to shift', 'error');
        }
    } catch (error) {
        console.error('Error adding user to shift:', error);
        showStatus('Failed to add user to shift', 'error');
    }
}

// Remove volunteer from shift
async function removeVolunteerFromShift(volunteerId, volunteerEmail) {
    if (!confirm(`Are you sure you want to remove ${volunteerEmail} from this shift?`)) {
        return;
    }
    
    if (!currentShiftData) {
        showStatus('No shift selected', 'error');
        return;
    }
    
    try {
        const response = await fetch(`/api/shifts/admin/${currentShiftData.ID}/remove-user/${volunteerId}`, {
            method: 'DELETE'
        });
        
        const data = await response.json();
        
        if (data.success) {
            showStatus('Volunteer successfully removed from shift', 'success');
            
            // Refresh the shift data and reload volunteers
            await refreshCurrentShiftData();
            console.log('Refreshed shift data after removing volunteer');
        } else {
            showStatus(data.error || 'Failed to remove volunteer from shift', 'error');
        }
    } catch (error) {
        console.error('Error removing volunteer from shift:', error);
        showStatus('Failed to remove volunteer from shift', 'error');
    }
}

// Refresh current shift data
async function refreshCurrentShiftData() {
    if (!currentShiftData) return;
    
    try {
        console.log('Refreshing shift data for shift ID:', currentShiftData.ID);
        
        // Reload admin shifts to get updated data
        const response = await fetch('/api/shifts/admin');
        const data = await response.json();
        
        if (data.success) {
            const updatedShift = data.shifts.find(s => s.ID === currentShiftData.ID);
            if (updatedShift) {
                console.log('Found updated shift with', updatedShift.signups?.length || 0, 'volunteers');
                currentShiftData = updatedShift;
                displayCurrentVolunteers(updatedShift.signups || []);
                
                // Immediately refresh the main shifts list to show updated counts
                console.log('Refreshing main shifts list with', data.shifts.length, 'shifts');
                displayAdminShifts(data.shifts);
            } else {
                console.warn('Could not find updated shift with ID:', currentShiftData.ID);
            }
        } else {
            console.error('Failed to refresh shift data:', data.error);
        }
    } catch (error) {
        console.error('Error refreshing shift data:', error);
    }
}

// Close modal
function closeShiftUserModal() {
    document.getElementById('shift-user-modal').style.display = 'none';
    currentShiftData = null;
    
    // Refresh the main shifts list one more time when closing the modal
    // to ensure any changes are reflected
    console.log('Refreshing shifts list on modal close');
    loadAdminShifts();
}

// Email shift details to all volunteers
async function emailShiftDetails() {
    if (!currentShiftData) {
        showStatus('No shift selected', 'error');
        return;
    }
    
    // Check if there are volunteers to email
    const volunteers = currentShiftData.signups || [];
    if (volunteers.length === 0) {
        showStatus('No volunteers signed up for this shift', 'error');
        return;
    }
    
    // Confirm action
    const confirmMessage = `Send shift details email to ${volunteers.length} volunteer${volunteers.length !== 1 ? 's' : ''}?`;
    if (!confirm(confirmMessage)) {
        return;
    }

    // Initialize progress tracking for shift emails
    initializeShiftEmailProgress(volunteers.length);

    try {
        const response = await fetch(`/api/shifts/admin/${currentShiftData.ID}/email-details`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            }
        });
        
        const data = await response.json();
        
        if (data.success) {
            // Display detailed results
            updateShiftEmailProgress(data.results);
            showStatus(data.message, 'success');
            console.log('Email results:', data.results);
        } else {
            showShiftEmailError(data.error || 'Failed to send emails');
            if (data.details) {
                console.error('Failed email details:', data.details);
            }
        }
    } catch (error) {
        console.error('Error sending shift details emails:', error);
        showShiftEmailError('Failed to send emails - Network error');
    }
}

// Initialize shift email progress display
function initializeShiftEmailProgress(totalCount) {
    const progressContainer = document.getElementById('shift-email-progress-container');
    const statusList = document.getElementById('shift-email-status-list');
    const pendingCountEl = document.getElementById('shift-pending-count');
    const successCountEl = document.getElementById('shift-success-count');
    const errorCountEl = document.getElementById('shift-error-count');
    const progressBar = document.getElementById('shift-email-progress-bar');
    const progressText = document.getElementById('shift-progress-text');
    const closeBtn = document.getElementById('close-shift-progress-btn');
    
    // Show progress container
    progressContainer.classList.add('show');
    
    // Reset counters
    pendingCountEl.textContent = totalCount;
    successCountEl.textContent = '0';
    errorCountEl.textContent = '0';
    
    // Reset progress bar
    progressBar.style.width = '0%';
    progressBar.classList.remove('complete', 'error');
    progressText.textContent = '0%';
    
    // Clear status list
    statusList.innerHTML = '';
    
    // Hide close button initially
    closeBtn.style.display = 'none';
    
    // Add status items for each volunteer
    const volunteers = currentShiftData.signups || [];
    volunteers.forEach(volunteer => {
        const statusItem = document.createElement('div');
        statusItem.className = 'email-status-item';
        statusItem.innerHTML = `
            <div class="email-status-recipient">${volunteer['User Name'] || volunteer['User Email']}</div>
            <div class="email-status-result pending">
                <div class="progress-spinner"></div>
                <span>Sending...</span>
            </div>
        `;
        statusList.appendChild(statusItem);
    });
}

// Update shift email progress with results
function updateShiftEmailProgress(results) {
    const statusList = document.getElementById('shift-email-status-list');
    const pendingCountEl = document.getElementById('shift-pending-count');
    const successCountEl = document.getElementById('shift-success-count');
    const errorCountEl = document.getElementById('shift-error-count');
    const progressBar = document.getElementById('shift-email-progress-bar');
    const progressText = document.getElementById('shift-progress-text');
    const closeBtn = document.getElementById('close-shift-progress-btn');
    
    const successful = results.successful || [];
    const failed = results.failed || [];
    const total = results.total || (successful.length + failed.length);
    
    // Update counters
    successCountEl.textContent = successful.length;
    errorCountEl.textContent = failed.length;
    pendingCountEl.textContent = '0';
    
    // Update progress bar
    const percentage = ((successful.length + failed.length) / total * 100).toFixed(1);
    progressBar.style.width = percentage + '%';
    progressText.textContent = percentage + '%';
    
    if (failed.length > 0) {
        progressBar.classList.add('error');
    } else {
        progressBar.classList.add('complete');
    }
    
    // Update individual status items
    const statusItems = statusList.children;
    
    // Update successful emails
    successful.forEach(result => {
        const statusItem = Array.from(statusItems).find(item => 
            item.querySelector('.email-status-recipient').textContent.includes(result.email) ||
            item.querySelector('.email-status-recipient').textContent.includes(result.name)
        );
        if (statusItem) {
            statusItem.querySelector('.email-status-result').innerHTML = `
                <span class="email-status-result success">✓ Sent</span>
            `;
        }
    });
    
    // Update failed emails
    failed.forEach(result => {
        const statusItem = Array.from(statusItems).find(item => 
            item.querySelector('.email-status-recipient').textContent.includes(result.email) ||
            item.querySelector('.email-status-recipient').textContent.includes(result.name)
        );
        if (statusItem) {
            statusItem.querySelector('.email-status-result').innerHTML = `
                <span class="email-status-result error" title="${result.error || 'Unknown error'}">✗ Failed</span>
            `;
        }
    });
    
    // Show close button
    closeBtn.style.display = 'block';
    closeBtn.onclick = () => {
        document.getElementById('shift-email-progress-container').classList.remove('show');
    };
}

// Show shift email error
function showShiftEmailError(message) {
    const progressContainer = document.getElementById('shift-email-progress-container');
    const progressBar = document.getElementById('shift-email-progress-bar');
    const progressText = document.getElementById('shift-progress-text');
    const closeBtn = document.getElementById('close-shift-progress-btn');
    
    // Show progress container if not visible
    progressContainer.classList.add('show');
    
    // Update progress bar to show error
    progressBar.style.width = '100%';
    progressBar.classList.add('error');
    progressText.textContent = 'Error';
    
    // Show close button
    closeBtn.style.display = 'block';
    closeBtn.onclick = () => {
        progressContainer.classList.remove('show');
    };
    
    showStatus(message, 'error');
}

// Setup modal event listeners when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
    const closeModalBtn = document.getElementById('close-user-modal');
    const addUserBtn = document.getElementById('add-user-btn');
    const emailShiftDetailsBtn = document.getElementById('email-shift-details-btn');
    const modal = document.getElementById('shift-user-modal');
    
    if (closeModalBtn) {
        closeModalBtn.addEventListener('click', closeShiftUserModal);
    }
    
    if (addUserBtn) {
        addUserBtn.addEventListener('click', addUserToShift);
    }
    
    if (emailShiftDetailsBtn) {
        emailShiftDetailsBtn.addEventListener('click', emailShiftDetails);
    }
    
    // Close modal when clicking outside
    if (modal) {
        modal.addEventListener('click', function(e) {
            if (e.target === modal) {
                closeShiftUserModal();
            }
        });
    }
});

// Setup email users modal event listeners when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
    // Email all users functionality
    const closeEmailModalBtn = document.getElementById('close-email-modal');
    const cancelEmailBtn = document.getElementById('cancel-email-btn');
    const emailUsersForm = document.getElementById('email-users-form');
    const emailModal = document.getElementById('email-users-modal');
    
    if (closeEmailModalBtn) {
        closeEmailModalBtn.addEventListener('click', closeEmailUsersModal);
    }
    
    if (cancelEmailBtn) {
        cancelEmailBtn.addEventListener('click', closeEmailUsersModal);
    }
    
    if (emailUsersForm) {
        emailUsersForm.addEventListener('submit', sendEmailToAllUsers);
    }
    
    // Close modal when clicking outside
    if (emailModal) {
        emailModal.addEventListener('click', function(e) {
            if (e.target === emailModal) {
                closeEmailUsersModal();
            }
        });
    }
    
    // Setup rich text editor functionality
    setupRichTextEditor();
});