// JavaScript for Backup Monitor

document.addEventListener('DOMContentLoaded', function() {
    console.log('Backup Monitor loaded');
    
    // Update last updated time
    updateLastUpdatedTime();
    
    // Set up auto-refresh
    setupAutoRefresh();
    
    // Set up service card interactions
    setupServiceCards();
});

function updateLastUpdatedTime() {
    const lastUpdatedElement = document.getElementById('last-updated');
    if (lastUpdatedElement) {
        const now = new Date();
        lastUpdatedElement.textContent = `Last updated: ${now.toLocaleTimeString()}`;
    }
}

function setupAutoRefresh() {
    // Auto-refresh every 30 seconds
    setInterval(function() {
        console.log('Auto-refreshing metrics...');
        refreshMetrics();
    }, 30000);
}

function setupServiceCards() {
    // Add click handlers for service cards
    const serviceCards = document.querySelectorAll('.service-card');
    serviceCards.forEach(card => {
        card.addEventListener('click', function(e) {
            // Don't trigger if clicking on buttons
            if (e.target.tagName === 'A' || e.target.tagName === 'BUTTON') {
                return;
            }
            
            const serviceName = this.dataset.service;
            if (serviceName) {
                window.location.href = `/service/${serviceName}`;
            }
        });
        
        // Add hover effects
        card.style.cursor = 'pointer';
    });
}

function refreshMetrics() {
    // Show loading indicator
    const refreshButton = document.querySelector('[onclick="refreshMetrics()"]');
    if (refreshButton) {
        const icon = refreshButton.querySelector('i');
        if (icon) {
            icon.classList.add('fa-spin');
        }
        refreshButton.disabled = true;
    }
    
    // Reload the page to get fresh data
    setTimeout(() => {
        location.reload();
    }, 500);
}

function downloadBackup(serviceName) {
    console.log(`Downloading backup for service: ${serviceName}`);
    
    // Create a temporary link to trigger download
    const link = document.createElement('a');
    link.href = `/api/backup/download/${serviceName}`;
    link.download = `${serviceName}-backup.tar.gz`;
    link.target = '_blank';
    
    // Append to body, click, and remove
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
}

// Utility functions
function formatFileSize(bytes) {
    if (bytes === 0) return '0 Bytes';
    
    const k = 1024;
    const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}

function formatDuration(seconds) {
    if (seconds < 60) {
        return `${seconds}s`;
    } else if (seconds < 3600) {
        const minutes = Math.floor(seconds / 60);
        const remainingSeconds = seconds % 60;
        return remainingSeconds > 0 ? `${minutes}m ${remainingSeconds}s` : `${minutes}m`;
    } else {
        const hours = Math.floor(seconds / 3600);
        const minutes = Math.floor((seconds % 3600) / 60);
        return minutes > 0 ? `${hours}h ${minutes}m` : `${hours}h`;
    }
}

function showNotification(message, type = 'info') {
    // Create notification element
    const notification = document.createElement('div');
    notification.className = `alert alert-${type} alert-dismissible fade show position-fixed`;
    notification.style.cssText = 'top: 20px; right: 20px; z-index: 9999; max-width: 300px;';
    notification.innerHTML = `
        ${message}
        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
    `;
    
    // Add to page
    document.body.appendChild(notification);
    
    // Auto-remove after 5 seconds
    setTimeout(() => {
        if (notification.parentNode) {
            notification.parentNode.removeChild(notification);
        }
    }, 5000);
}

// Health check functionality
function checkSystemHealth() {
    fetch('/health')
        .then(response => response.json())
        .then(data => {
            const statusIndicator = document.getElementById('status-indicator');
            if (statusIndicator) {
                if (data.status === 'healthy') {
                    statusIndicator.className = 'text-success';
                    statusIndicator.innerHTML = '<i class="fas fa-circle me-1"></i>Online';
                } else {
                    statusIndicator.className = 'text-warning';
                    statusIndicator.innerHTML = '<i class="fas fa-exclamation-circle me-1"></i>Issues';
                }
            }
        })
        .catch(error => {
            console.error('Health check failed:', error);
            const statusIndicator = document.getElementById('status-indicator');
            if (statusIndicator) {
                statusIndicator.className = 'text-danger';
                statusIndicator.innerHTML = '<i class="fas fa-times-circle me-1"></i>Offline';
            }
        });
}

// Run health check every minute
setInterval(checkSystemHealth, 60000);
checkSystemHealth(); // Run immediately