// AutoBackups JavaScript Application

class AutoBackupsApp {
    constructor() {
        this.init();
    }

    init() {
        this.initializeTheme();
        this.updateCurrentTime();
        this.setupEventListeners();
        
        // Update time every minute
        setInterval(() => this.updateCurrentTime(), 60000);
    }

    updateCurrentTime() {
        const now = new Date();
        const timeString = now.toLocaleString('es-ES', {
            year: 'numeric',
            month: '2-digit',
            day: '2-digit',
            hour: '2-digit',
            minute: '2-digit'
        });
        
        const timeElement = document.getElementById('current-time');
        if (timeElement) {
            timeElement.textContent = timeString;
        }
    }

    // Theme Management
    initializeTheme() {
        // Load saved theme from localStorage or default to light
        const savedTheme = localStorage.getItem('theme') || 'light';
        this.setTheme(savedTheme);
    }

    setTheme(theme) {
        const htmlElement = document.documentElement;
        const themeIcon = document.getElementById('theme-icon');
        
        if (theme === 'dark') {
            htmlElement.setAttribute('data-theme', 'dark');
            if (themeIcon) {
                themeIcon.className = 'bi bi-moon-fill';
            }
        } else {
            htmlElement.removeAttribute('data-theme');
            if (themeIcon) {
                themeIcon.className = 'bi bi-sun-fill';
            }
        }
        
        localStorage.setItem('theme', theme);
    }

    toggleTheme() {
        const currentTheme = document.documentElement.getAttribute('data-theme');
        const newTheme = currentTheme === 'dark' ? 'light' : 'dark';
        this.setTheme(newTheme);
    }

    setupEventListeners() {
        // Theme toggle button
        const themeToggleBtn = document.getElementById('theme-toggle');
        if (themeToggleBtn) {
            themeToggleBtn.addEventListener('click', () => this.toggleTheme());
        }

        // Global backup all button
        const backupAllBtn = document.getElementById('backup-all-btn');
        if (backupAllBtn) {
            backupAllBtn.addEventListener('click', () => this.backupAllProjects());
        }

        // Save project configuration
        const saveConfigBtn = document.getElementById('save-project-config-btn');
        if (saveConfigBtn) {
            saveConfigBtn.addEventListener('click', () => this.saveProjectConfig());
        }
    }

    backupAllProjects() {
        this.showAlert('info', 'Iniciando backup de todos los proyectos habilitados...');
        
        // Get all enabled projects and trigger backup
        fetch('/api/projects')
            .then(response => response.json())
            .then(data => {
                if (data.error) {
                    this.showAlert('danger', `Error: ${data.error}`);
                    return;
                }

                const enabledProjects = data.projects.filter(project => 
                    project.schedule_config && project.schedule_config.enabled
                );

                if (enabledProjects.length === 0) {
                    this.showAlert('warning', 'No hay proyectos habilitados para backup.');
                    return;
                }

                // Backup each enabled project
                let completed = 0;
                enabledProjects.forEach(project => {
                    fetch(`/api/projects/${project.id}/backup`, {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' }
                    })
                    .then(response => response.json())
                    .then(backupData => {
                        completed++;
                        if (completed === enabledProjects.length) {
                            this.showAlert('success', 
                                `Backup completado para ${enabledProjects.length} proyectos.`);
                        }
                    })
                    .catch(error => {
                        console.error(`Error backing up project ${project.id}:`, error);
                    });
                });
            })
            .catch(error => {
                this.showAlert('danger', `Error de conexión: ${error.message}`);
            });
    }

    saveProjectConfig() {
        const projectId = document.getElementById('modal-project-id').value;
        const schedule = document.getElementById('modal-project-schedule').value;
        const time = document.getElementById('modal-project-time').value;
        const enabled = document.getElementById('modal-project-enabled').checked;

        const config = {
            schedule_config: {
                schedule: schedule,
                schedule_time: time,
                enabled: enabled
            }
        };

        fetch(`/api/projects/${projectId}/config`, {
            method: 'PUT',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify(config)
        })
        .then(response => response.json())
        .then(data => {
            if (data.error) {
                this.showAlert('danger', `Error: ${data.error}`);
            } else {
                this.showAlert('success', 'Configuración guardada correctamente.');
                
                // Close modal
                const modal = bootstrap.Modal.getInstance(
                    document.getElementById('projectConfigModal')
                );
                if (modal) {
                    modal.hide();
                }
                
                // Refresh page after a short delay
                setTimeout(() => location.reload(), 1500);
            }
        })
        .catch(error => {
            this.showAlert('danger', `Error de conexión: ${error.message}`);
        });
    }

    showAlert(type, message, duration = 5000) {
        const alertsContainer = document.getElementById('alerts-container');
        if (!alertsContainer) return;

        const alertId = 'alert-' + Date.now();
        const alertHtml = `
            <div class="alert alert-${type} alert-dismissible fade show fade-in" role="alert" id="${alertId}">
                <i class="bi bi-${this.getAlertIcon(type)}"></i>
                ${message}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            </div>
        `;

        alertsContainer.insertAdjacentHTML('beforeend', alertHtml);

        // Auto-dismiss after duration
        if (duration > 0) {
            setTimeout(() => {
                const alertElement = document.getElementById(alertId);
                if (alertElement) {
                    const alert = new bootstrap.Alert(alertElement);
                    alert.close();
                }
            }, duration);
        }
    }

    getAlertIcon(type) {
        const icons = {
            'success': 'check-circle',
            'danger': 'exclamation-triangle',
            'warning': 'exclamation-triangle',
            'info': 'info-circle',
            'primary': 'info-circle',
            'secondary': 'info-circle'
        };
        return icons[type] || 'info-circle';
    }

    // Utility method to format file sizes
    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];
    }

    // Utility method to format dates
    formatDate(dateString) {
        if (!dateString) return 'N/A';
        
        const date = new Date(dateString);
        return date.toLocaleString('es-ES', {
            year: 'numeric',
            month: '2-digit',
            day: '2-digit',
            hour: '2-digit',
            minute: '2-digit'
        });
    }

    // Method to show loading state
    showLoading(element) {
        if (element) {
            element.classList.add('loading');
            const originalContent = element.innerHTML;
            element.innerHTML = '<span class="spinner-border spinner-border-sm" role="status"></span> Cargando...';
            return originalContent;
        }
    }

    // Method to hide loading state
    hideLoading(element, originalContent) {
        if (element && originalContent) {
            element.classList.remove('loading');
            element.innerHTML = originalContent;
        }
    }

    // Method to make API calls with error handling
    async apiCall(url, options = {}) {
        try {
            const response = await fetch(url, {
                headers: {
                    'Content-Type': 'application/json',
                    ...options.headers
                },
                ...options
            });

            const data = await response.json();

            if (!response.ok) {
                throw new Error(data.error || `HTTP error! status: ${response.status}`);
            }

            return data;
        } catch (error) {
            console.error('API call failed:', error);
            this.showAlert('danger', `Error de API: ${error.message}`);
            throw error;
        }
    }
}

// Global functions for backward compatibility
function showAlert(type, message, duration = 5000) {
    if (window.autobackupsApp) {
        window.autobackupsApp.showAlert(type, message, duration);
    }
}

// Initialize app when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
    window.autobackupsApp = new AutoBackupsApp();
});

// Export for modules if needed
if (typeof module !== 'undefined' && module.exports) {
    module.exports = AutoBackupsApp;
}