/**
 * Tom's Java Jive - Admin JavaScript
 */

// Sidebar Toggle
document.addEventListener('DOMContentLoaded', function() {
    const sidebarToggle = document.getElementById('sidebarToggle');
    const sidebar = document.querySelector('.admin-sidebar');
    
    if (sidebarToggle && sidebar) {
        sidebarToggle.addEventListener('click', function() {
            sidebar.classList.toggle('open');
        });
        
        // Close sidebar when clicking outside on mobile
        document.addEventListener('click', function(e) {
            if (window.innerWidth <= 1024) {
                if (!sidebar.contains(e.target) && !sidebarToggle.contains(e.target)) {
                    sidebar.classList.remove('open');
                }
            }
        });
    }
    
    // Confirm dialogs
    document.querySelectorAll('[data-confirm]').forEach(el => {
        el.addEventListener('click', function(e) {
            if (!confirm(this.dataset.confirm)) {
                e.preventDefault();
            }
        });
    });
    
    // Auto-hide alerts
    document.querySelectorAll('.alert').forEach(alert => {
        setTimeout(() => {
            alert.style.opacity = '0';
            alert.style.transform = 'translateY(-10px)';
            setTimeout(() => alert.remove(), 300);
        }, 5000);
    });
});

// Toast notifications
const AdminToast = {
    container: null,
    
    init() {
        if (!this.container) {
            this.container = document.createElement('div');
            this.container.style.cssText = 'position:fixed;bottom:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:8px;';
            document.body.appendChild(this.container);
        }
    },
    
    show(message, type = 'success', duration = 3000) {
        this.init();
        
        const colors = {
            success: '#10B981',
            error: '#EF4444',
            warning: '#F59E0B',
            info: '#3B82F6'
        };
        
        const toast = document.createElement('div');
        toast.style.cssText = `
            background: white;
            padding: 12px 16px;
            border-radius: 8px;
            box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            border-left: 4px solid ${colors[type] || colors.info};
            display: flex;
            align-items: center;
            gap: 10px;
            animation: slideIn 0.3s ease;
        `;
        toast.innerHTML = `
            <i class="fas fa-${type === 'success' ? 'check-circle' : type === 'error' ? 'exclamation-circle' : 'info-circle'}" style="color:${colors[type]}"></i>
            <span>${message}</span>
        `;
        
        this.container.appendChild(toast);
        
        setTimeout(() => {
            toast.style.animation = 'slideIn 0.3s ease reverse';
            setTimeout(() => toast.remove(), 300);
        }, duration);
    },
    
    success(msg) { this.show(msg, 'success'); },
    error(msg) { this.show(msg, 'error'); },
    warning(msg) { this.show(msg, 'warning'); },
    info(msg) { this.show(msg, 'info'); }
};

// API helper
async function adminFetch(url, options = {}) {
    const defaults = {
        headers: {
            'Content-Type': 'application/json',
        }
    };
    
    const response = await fetch(url, { ...defaults, ...options });
    const data = await response.json();
    
    if (!response.ok) {
        throw new Error(data.error || 'Request failed');
    }
    
    return data;
}

// Loading state
function setLoading(button, isLoading) {
    if (isLoading) {
        button.dataset.originalHtml = button.innerHTML;
        button.innerHTML = '<span class="loading"></span> Loading...';
        button.disabled = true;
    } else {
        button.innerHTML = button.dataset.originalHtml || button.innerHTML;
        button.disabled = false;
    }
}

// Format currency
function formatCurrency(amount) {
    return '$' + parseFloat(amount).toFixed(2);
}

// Format date
function formatDate(dateString) {
    return new Date(dateString).toLocaleDateString('en-US', {
        month: 'short',
        day: 'numeric',
        year: 'numeric'
    });
}

// Debounce
function debounce(func, wait) {
    let timeout;
    return function(...args) {
        clearTimeout(timeout);
        timeout = setTimeout(() => func.apply(this, args), wait);
    };
}

// Modal
const Modal = {
    open(modalId) {
        const modal = document.getElementById(modalId);
        if (modal) {
            modal.classList.add('active');
            document.body.style.overflow = 'hidden';
        }
    },
    
    close(modalId) {
        const modal = document.getElementById(modalId);
        if (modal) {
            modal.classList.remove('active');
            document.body.style.overflow = '';
        }
    }
};

// Close modals on overlay click
document.addEventListener('click', function(e) {
    if (e.target.classList.contains('modal-overlay')) {
        e.target.classList.remove('active');
        document.body.style.overflow = '';
    }
});

// Image preview
function previewImage(input, previewId) {
    const preview = document.getElementById(previewId);
    if (!preview) return;
    
    if (input.files && input.files[0]) {
        const reader = new FileReader();
        reader.onload = function(e) {
            preview.src = e.target.result;
            preview.style.display = 'block';
        };
        reader.readAsDataURL(input.files[0]);
    }
}

// Add slideIn animation
const style = document.createElement('style');
style.textContent = `
    @keyframes slideIn {
        from { transform: translateX(100%); opacity: 0; }
        to { transform: translateX(0); opacity: 1; }
    }
`;
document.head.appendChild(style);