geoip_block_generator/static/js/cache.js

async function loadCacheStats() {
    const container = document.getElementById('cacheStatsContent');
    
    if (!container) return;
    
    container.innerHTML = `
        <div class="text-center py-3">
            <div class="spinner-border spinner-border-sm text-primary" role="status"></div>
            <span class="ms-2">Loading statistics...</span>
        </div>
    `;
    
    try {
        const [cacheResponse, sqliteResponse] = await Promise.all([
            fetch('/api/cache/status'),
            fetch('/api/database/sqlite/status')
        ]);
        
        const cacheData = await cacheResponse.json();
        const sqliteData = await sqliteResponse.json();
        
        if (!cacheData.success) {
            container.innerHTML = `<div class="alert alert-warning mb-0">Redis cache unavailable: ${cacheData.error || 'Unknown error'}</div>`;
            return;
        }
        
        const stats = cacheData.stats || {};
        const health = cacheData.health || {};
        
        let html = `
            <h6 class="mb-3"><i class="fas fa-bolt text-warning me-2"></i>Redis Cache</h6>
            <div class="row g-3 mb-4">
                <div class="col-md-3">
                    <div class="text-center p-3 bg-light rounded">
                        <h4 class="mb-1">${stats.country_keys || 0}</h4>
                        <small class="text-muted">Country Keys</small>
                    </div>
                </div>
                <div class="col-md-3">
                    <div class="text-center p-3 bg-light rounded">
                        <h4 class="mb-1">${stats.config_keys || 0}</h4>
                        <small class="text-muted">Config Keys</small>
                    </div>
                </div>
                <div class="col-md-3">
                    <div class="text-center p-3 bg-light rounded">
                        <h4 class="mb-1">${stats.total_size_mb || 0} MB</h4>
                        <small class="text-muted">Cache Size</small>
                    </div>
                </div>
                <div class="col-md-3">
                    <div class="text-center p-3 bg-light rounded">
                        <h4 class="mb-1">${health.memory_used_mb || 0} MB</h4>
                        <small class="text-muted">Memory Used</small>
                    </div>
                </div>
            </div>
        `;
        
        if (sqliteData.success && sqliteData.exists) {
            const modifiedDate = new Date(sqliteData.modified).toLocaleString();
            
            html += `
                <h6 class="mb-3"><i class="fas fa-database text-primary me-2"></i>SQLite Cache Database</h6>
                <div class="row g-3 mb-3">
                    <div class="col-md-3">
                        <div class="text-center p-3 bg-light rounded">
                            <h4 class="mb-1">${sqliteData.total_countries || 0}</h4>
                            <small class="text-muted">Countries</small>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 bg-light rounded">
                            <h4 class="mb-1">${(sqliteData.total_networks || 0).toLocaleString()}</h4>
                            <small class="text-muted">Total Networks</small>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 bg-light rounded">
                            <h4 class="mb-1">${sqliteData.file_size_mb || 0} MB</h4>
                            <small class="text-muted">Database Size</small>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 bg-light rounded">
                            <small class="text-muted d-block mb-1">Last Modified</small>
                            <small><strong>${modifiedDate}</strong></small>
                        </div>
                    </div>
                </div>
            `;
            
            if (sqliteData.top_countries && sqliteData.top_countries.length > 0) {
                html += `
                    <div class="alert alert-info mb-0">
                        <strong><i class="fas fa-star me-1"></i>Top countries:</strong>
                        ${sqliteData.top_countries.map(c => 
                            `<span class="badge bg-secondary ms-2">${c.code}: ${c.networks.toLocaleString()}</span>`
                        ).join('')}
                    </div>
                `;
            }
        } else {
            html += `
                <div class="alert alert-warning mb-0">
                    <i class="fas fa-exclamation-triangle me-2"></i>
                    SQLite cache database not available
                </div>
            `;
        }
        
        container.innerHTML = html;
        
    } catch (error) {
        console.error('Error loading cache stats:', error);
        container.innerHTML = `
            <div class="alert alert-danger mb-0">
                <i class="fas fa-times-circle me-2"></i>
                Failed to load statistics: ${error.message}
            </div>
        `;
    }
}

async function flushCache() {
    const confirmed = await showConfirmModal(
        'Flush Redis Cache',
        'Are you sure you want to flush ALL Redis cache?<br><br>' +
        '<strong>This will delete:</strong><br>' +
        '• All cached country data<br>' +
        '• All cached configurations<br>' +
        '• Force regeneration for future requests<br><br>' +
        '<span class="text-danger">This action cannot be undone!</span>'
    );
    
    if (!confirmed) return;
    
    try {
        showFlushingIndicator();
        
        const response = await fetch('/api/cache/flush', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'}
        });
        
        const data = await response.json();
        
        hideFlushingIndicator();
        
        if (data.success) {
            showToast('success', 'Cache Flushed', 'All Redis cache has been cleared successfully!');
            loadCacheStats();
        } else {
            showToast('danger', 'Error', 'Failed to flush cache: ' + (data.error || 'Unknown error'));
        }
    } catch (error) {
        hideFlushingIndicator();
        showToast('danger', 'Error', 'Network error: ' + error.message);
    }
}

function showConfirmModal(title, message) {
    return new Promise((resolve) => {
        const modalId = 'confirmModal_' + Date.now();
        const modalHtml = `
            <div class="modal fade" id="${modalId}" tabindex="-1" data-bs-backdrop="static">
                <div class="modal-dialog modal-dialog-centered">
                    <div class="modal-content">
                        <div class="modal-header bg-warning text-dark">
                            <h5 class="modal-title">
                                <i class="fas fa-exclamation-triangle me-2"></i>${title}
                            </h5>
                            <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                        </div>
                        <div class="modal-body">
                            ${message}
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                                <i class="fas fa-times me-1"></i>Cancel
                            </button>
                            <button type="button" class="btn btn-danger" id="confirmBtn">
                                <i class="fas fa-trash me-1"></i>Flush Cache
                            </button>
                        </div>
                    </div>
                </div>
            </div>
        `;
        
        document.body.insertAdjacentHTML('beforeend', modalHtml);
        const modalEl = document.getElementById(modalId);
        const modal = new bootstrap.Modal(modalEl);
        
        modalEl.querySelector('#confirmBtn').addEventListener('click', () => {
            modal.hide();
            resolve(true);
        });
        
        modalEl.addEventListener('hidden.bs.modal', () => {
            modalEl.remove();
            resolve(false);
        });
        
        modal.show();
    });
}

function showFlushingIndicator() {
    const indicator = document.createElement('div');
    indicator.id = 'flushingIndicator';
    indicator.className = 'position-fixed top-50 start-50 translate-middle';
    indicator.style.zIndex = '9999';
    indicator.innerHTML = `
        <div class="card shadow-lg">
            <div class="card-body text-center p-4">
                <div class="spinner-border text-warning mb-3" role="status" style="width: 3rem; height: 3rem;">
                    <span class="visually-hidden">Flushing...</span>
                </div>
                <h5>Flushing Cache...</h5>
                <p class="text-muted mb-0">Please wait</p>
            </div>
        </div>
    `;
    document.body.appendChild(indicator);
}

function hideFlushingIndicator() {
    const indicator = document.getElementById('flushingIndicator');
    if (indicator) {
        indicator.remove();
    }
}

function showToast(type, title, message) {
    const toastId = 'toast_' + Date.now();
    const bgClass = type === 'success' ? 'bg-success' : type === 'danger' ? 'bg-danger' : 'bg-warning';
    
    const toastHtml = `
        <div class="position-fixed top-0 end-0 p-3" style="z-index: 9999">
            <div id="${toastId}" class="toast ${bgClass} text-white" role="alert">
                <div class="toast-header ${bgClass} text-white">
                    <i class="fas fa-${type === 'success' ? 'check-circle' : 'exclamation-circle'} me-2"></i>
                    <strong class="me-auto">${title}</strong>
                    <button type="button" class="btn-close btn-close-white" data-bs-dismiss="toast"></button>
                </div>
                <div class="toast-body">
                    ${message}
                </div>
            </div>
        </div>
    `;
    
    document.body.insertAdjacentHTML('beforeend', toastHtml);
    const toastEl = document.getElementById(toastId);
    const toast = new bootstrap.Toast(toastEl, { delay: 5000 });
    
    toast.show();
    
    toastEl.addEventListener('hidden.bs.toast', () => {
        toastEl.parentElement.remove();
    });
}

function showAlert(type, message) {
    showToast(type, type === 'success' ? 'Success' : 'Error', message);
}

document.addEventListener('DOMContentLoaded', function() {
    const statsPanel = document.getElementById('cacheStatsPanel');
    if (statsPanel) {
        statsPanel.addEventListener('shown.bs.collapse', function() {
            loadCacheStats();
        });
    }
});