/**
 * MicroModal Global Utilities
 * Provides helper functions for MicroModal management
 */

class ModalManager {
    constructor() {
        this.initialized = false;
        this.modals = new Map();
        this.init();
    }

    /**
     * Initialize MicroModal with default settings
     */
    init() {
        if (typeof MicroModal === 'undefined') {
            console.warn('MicroModal is not loaded');
            return;
        }

        if (this.initialized) {
            return;
        }

        MicroModal.init({
            onShow: (modal) => {
                this.onModalShow(modal);
            },
            onClose: (modal) => {
                this.onModalClose(modal);
            },
            openTrigger: 'data-micromodal-trigger',
            closeTrigger: 'data-micromodal-close',
            openClass: 'is-open',
            disableScroll: true,
            disableFocus: false,
            awaitOpenAnimation: false,
            awaitCloseAnimation: false,
            debugMode: false
        });

        this.initialized = true;
        console.log('MicroModal initialized');
    }

    /**
     * Called when modal is shown
     */
    onModalShow(modal) {
        // Re-initialize Lucide icons when modal opens
        if (typeof lucide !== 'undefined') {
            lucide.createIcons();
        }

        // Add body class to prevent scrolling
        document.body.classList.add('modal-open');

        // Execute custom show callback if exists
        if (modal && this.modals.has(modal.id)) {
            const config = this.modals.get(modal.id);
            if (config.onShow && typeof config.onShow === 'function') {
                config.onShow(modal);
            }
        }
    }

    /**
     * Called when modal is closed
     */
    onModalClose(modal) {
        // Remove body class
        document.body.classList.remove('modal-open');

        // Execute custom close callback if exists
        if (modal && this.modals.has(modal.id)) {
            const config = this.modals.get(modal.id);
            if (config.onClose && typeof config.onClose === 'function') {
                config.onClose(modal);
            }
        }
    }

    /**
     * Show modal with optional data
     */
    show(modalId, data = {}) {
        if (typeof MicroModal === 'undefined') {
            console.error('MicroModal is not available');
            return;
        }

        // Update modal content if data is provided
        if (Object.keys(data).length > 0) {
            this.updateModalContent(modalId, data);
        }

        MicroModal.show(modalId);
    }

    /**
     * Close modal
     */
    close(modalId) {
        if (typeof MicroModal === 'undefined') {
            console.error('MicroModal is not available');
            return;
        }

        MicroModal.close(modalId);
    }

    /**
     * Register a modal with custom configuration
     */
    register(modalId, config = {}) {
        this.modals.set(modalId, config);
    }

    /**
     * Update modal content dynamically
     */
    updateModalContent(modalId, data) {
        const modal = document.getElementById(modalId);
        if (!modal) {
            console.error(`Modal ${modalId} not found`);
            return;
        }

        // Update text content for elements with data-modal-* attributes
        Object.keys(data).forEach(key => {
            const element = modal.querySelector(`[data-modal-${key}]`);
            if (element) {
                if (element.tagName === 'INPUT' || element.tagName === 'TEXTAREA') {
                    element.value = data[key];
                } else {
                    element.textContent = data[key];
                }
            }

            // Also support getElementById for backward compatibility
            const elementById = modal.querySelector(`#${key}`);
            if (elementById) {
                if (elementById.tagName === 'INPUT' || elementById.tagName === 'TEXTAREA') {
                    elementById.value = data[key];
                } else {
                    elementById.textContent = data[key];
                }
            }
        });

        // Update form action if provided
        if (data.formAction) {
            const form = modal.querySelector('form');
            if (form) {
                form.action = data.formAction;
            }
        }
    }

    /**
     * Create a confirmation modal dynamically
     */
    showConfirmation(options = {}) {
        const defaults = {
            modalId: 'confirmationModal',
            title: 'Confirm Action',
            message: 'Are you sure?',
            confirmText: 'Confirm',
            cancelText: 'Cancel',
            confirmClass: 'btn btn-primary btn-sm',
            cancelClass: 'btn btn-outline-secondary btn-sm',
            onConfirm: null,
            onCancel: null
        };

        const config = { ...defaults, ...options };

        // Create modal HTML if it doesn't exist
        let modal = document.getElementById(config.modalId);
        if (!modal) {
            modal = this.createConfirmationModal(config);
            document.body.appendChild(modal);
        } else {
            // Update existing modal
            this.updateConfirmationModal(modal, config);
        }

        // Register callbacks
        this.register(config.modalId, {
            onShow: () => {
                const confirmBtn = modal.querySelector('.modal__confirm');
                const cancelBtn = modal.querySelector('.modal__cancel');

                // Remove existing event listeners
                confirmBtn.replaceWith(confirmBtn.cloneNode(true));
                cancelBtn.replaceWith(cancelBtn.cloneNode(true));

                // Add new event listeners
                modal.querySelector('.modal__confirm').addEventListener('click', (e) => {
                    if (config.onConfirm && typeof config.onConfirm === 'function') {
                        config.onConfirm(e);
                    }
                    this.close(config.modalId);
                });

                modal.querySelector('.modal__cancel').addEventListener('click', (e) => {
                    if (config.onCancel && typeof config.onCancel === 'function') {
                        config.onCancel(e);
                    }
                    this.close(config.modalId);
                });
            }
        });

        this.show(config.modalId);
    }

    /**
     * Create confirmation modal HTML
     */
    createConfirmationModal(config) {
        const modalHtml = `
            <div class="modal micromodal-slide" id="${config.modalId}" aria-hidden="true">
                <div class="modal__overlay" tabindex="-1" data-micromodal-close>
                    <div class="modal__container modal--sm" role="dialog" aria-modal="true">
                        <header class="modal__header bg-primary text-white">
                            <h6 class="modal__title">${config.title}</h6>
                            <button class="modal__close" aria-label="Close modal" data-micromodal-close>
                                <i data-lucide="x"></i>
                            </button>
                        </header>
                        <main class="modal__content">
                            <div class="text-center">
                                <p class="mb-0">${config.message}</p>
                            </div>
                        </main>
                        <footer class="modal__footer justify-content-center">
                            <button type="button" class="modal__cancel ${config.cancelClass}" data-micromodal-close>
                                ${config.cancelText}
                            </button>
                            <button type="button" class="modal__confirm ${config.confirmClass}">
                                ${config.confirmText}
                            </button>
                        </footer>
                    </div>
                </div>
            </div>
        `;

        const div = document.createElement('div');
        div.innerHTML = modalHtml;
        return div.firstElementChild;
    }

    /**
     * Update existing confirmation modal
     */
    updateConfirmationModal(modal, config) {
        modal.querySelector('.modal__title').textContent = config.title;
        modal.querySelector('.modal__content p').textContent = config.message;
        modal.querySelector('.modal__confirm').textContent = config.confirmText;
        modal.querySelector('.modal__cancel').textContent = config.cancelText;
        
        // Update button classes
        modal.querySelector('.modal__confirm').className = `modal__confirm ${config.confirmClass}`;
        modal.querySelector('.modal__cancel').className = `modal__cancel ${config.cancelClass}`;
    }
}

// Global instance
window.ModalManager = new ModalManager();

// Helper functions for backward compatibility
window.showModal = (modalId, data = {}) => {
    window.ModalManager.show(modalId, data);
};

window.closeModal = (modalId) => {
    window.ModalManager.close(modalId);
};

window.showConfirmation = (options) => {
    window.ModalManager.showConfirmation(options);
};

// Auto-initialize when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
    // Initialize Lucide icons
    if (typeof lucide !== 'undefined') {
        lucide.createIcons();
    }
    
    console.log('Modal utilities loaded');
});

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