// CV Interactive Features - CSP-Compliant External JavaScript
// Extracted from inline scripts for security hardening
(function() {
    'use strict';

    // =============================================================================
    // NAVIGATION & MENU SYSTEM
    // =============================================================================

    // Minimal menu control - CSS handles most logic, JS just bridges hamburger to menu
    function initMenuSystem() {
        const hamburgerBtn = document.querySelector('.hamburger-btn');
        const menu = document.getElementById('navigation-menu');

        if (!hamburgerBtn || !menu) return;

        // Show menu on hamburger hover - CSS handles the rest
        hamburgerBtn.addEventListener('mouseenter', () => menu.classList.add('menu-hover'));

        // Hide menu when leaving hamburger if not hovering menu
        hamburgerBtn.addEventListener('mouseleave', () => {
            setTimeout(() => {
                if (!menu.matches(':hover')) menu.classList.remove('menu-hover');
            }, 100);
        });

        // Hide menu when leaving menu
        menu.addEventListener('mouseleave', () => menu.classList.remove('menu-hover'));

        // Position submenu dynamically (needed because fixed positioning)
        const submenuTrigger = document.querySelector('.menu-item-submenu');
        const submenuContent = document.querySelector('.submenu-content');
        if (submenuTrigger && submenuContent) {
            submenuTrigger.addEventListener('mouseenter', function() {
                submenuContent.style.top = `${this.getBoundingClientRect().top}px`;
            });
        }
    }

    // Flag to keep header visible after navigation
    let keepHeaderVisible = false;

    // Expand/collapse all sections utility functions
    window.expandAllSections = function(event) {
        event.preventDefault();
        document.querySelectorAll('details').forEach(d => d.setAttribute('open', ''));
    };

    window.collapseAllSections = function(event) {
        event.preventDefault();
        document.querySelectorAll('details').forEach(d => d.removeAttribute('open'));
    };

    // Close menu when navigation links clicked - CSS handles scrolling
    document.addEventListener('click', (e) => {
        const navLink = e.target.closest('.submenu-content a[href^="#"]');
        if (navLink) {
            document.querySelector('.navigation-menu')?.classList.remove('menu-hover', 'menu-open');
        }
    });

    // =============================================================================
    // LANGUAGE & PREFERENCES
    // =============================================================================

    // =============================================================================
    // ZOOM CONTROL - Now handled by Hyperscript in zoom-control.html
    // =============================================================================

    // All zoom functionality moved to declarative hyperscript:
    // - Slider updates and real-time zoom application
    // - Reset button (back to 100%)
    // - Close/show toggle with localStorage persistence
    // - Keyboard shortcuts (Ctrl/Cmd +/-/0)
    // - Draggable positioning with bounds checking
    // - Mobile detection and auto-disable
    // - LocalStorage persistence (zoom level, visibility, position)
    //
    // Result: ~343 lines of JavaScript eliminated!

    // =============================================================================
    // PRINT & PDF - Now handled by Hyperscript in action-buttons.html
    // =============================================================================

    // Print function moved to inline hyperscript on print button:
    // - Stores current theme, length, and zoom state
    // - Applies clean theme + short version for printing
    // - Resets zoom to 100% for consistent print output
    // - Calls window.print()
    // - Restores original state after print dialog closes
    // - Properly restores zoom by triggering slider input event (fixes Phase 5 bug)
    //
    // Result: ~44 lines of JavaScript eliminated!

    // =============================================================================
    // INITIALIZATION & PREFERENCES
    // =============================================================================

    function initPreferences() {
        const paper = document.querySelector('.cv-paper');

        // Handle language preference
        const urlLang = new URLSearchParams(window.location.search).get('lang');
        const savedLang = localStorage.getItem('cv-language');

        if (!urlLang && savedLang) {
            // URL is clean but we have a saved preference - redirect with lang parameter
            const url = new URL(window.location);
            url.searchParams.set('lang', savedLang);
            window.location.replace(url.toString());
        } else if (urlLang) {
            // Save URL language to localStorage
            localStorage.setItem('cv-language', urlLang);
        }

        // Zoom control initialization now handled by hyperscript in zoom-control.html
    }

    // =============================================================================
    // SCROLL BEHAVIOR - Now handled by Hyperscript on <body> element
    // =============================================================================

    // Scroll behavior moved to inline hyperscript on body tag:
    // - Header hide/show based on scroll direction (with 100px threshold)
    // - Back-to-top button visibility (appears after 300px scroll)
    // - At-bottom positioning for fixed buttons (within 50px of page bottom)
    // - Menu visibility coordination when open
    // - State tracking: lastScroll, scrollThreshold, keepHeaderVisible
    //
    // Result: ~59 lines of JavaScript eliminated!

    // =============================================================================
    // MODALS - Using Native <dialog> Element
    // =============================================================================

    // Native <dialog> elements handle:
    // - Open/close with .showModal() and .close()
    // - Backdrop clicks (via ::backdrop CSS pseudo-element)
    // - Escape key to close (built-in browser behavior)
    // - Body scroll prevention (automatic with modal dialogs)
    // - Focus trapping (automatic accessibility feature)
    //
    // No JavaScript needed! All modal logic is now in HTML/CSS.

    // =============================================================================
    // ERROR HANDLING
    // =============================================================================

    // Error handling utility - CSS handles auto-hide animation
    window.showError = function(message) {
        const errorToast = document.getElementById('error-toast');
        const errorMessage = document.getElementById('error-message');

        errorMessage.textContent = message;
        errorToast.classList.remove('show'); // Reset if already showing

        // Trigger reflow to restart animation
        void errorToast.offsetWidth;

        errorToast.classList.add('show'); // CSS animation handles lifecycle
    };

    // Close button handler for error toast - removes class to trigger hide
    document.addEventListener('click', (e) => {
        if (e.target.closest('.error-close')) {
            document.getElementById('error-toast')?.classList.remove('show');
        }
    });

    // =============================================================================
    // HTMX EVENT HANDLERS
    // =============================================================================

    function initHTMXHandlers() {
        // HTMX Global Error Handlers
        document.body.addEventListener('htmx:responseError', function(evt) {
            console.error('HTMX Response Error:', evt.detail);
            const lang = document.documentElement.lang;
            const message = lang === 'es'
                ? 'Error al cargar el contenido. Por favor, inténtelo de nuevo.'
                : 'Failed to load content. Please try again.';
            window.showError(message);
        });

        document.body.addEventListener('htmx:sendError', function(evt) {
            console.error('HTMX Send Error:', evt.detail);
            const lang = document.documentElement.lang;
            const message = lang === 'es'
                ? 'Error de conexión. Verifique su conexión a internet.'
                : 'Connection error. Please check your internet connection.';
            window.showError(message);
        });

        document.body.addEventListener('htmx:timeout', function(evt) {
            console.error('HTMX Timeout:', evt.detail);
            const lang = document.documentElement.lang;
            const message = lang === 'es'
                ? 'La solicitud tardó demasiado. Por favor, inténtelo de nuevo.'
                : 'Request timed out. Please try again.';
            window.showError(message);
        });

        document.body.addEventListener('htmx:afterSwap', function(evt) {
            // Smooth scroll to top on language change
            if (evt.detail.target.id === 'cv-content') {
                window.scrollTo({ top: 0, behavior: 'smooth' });
            }

            // Track HTMX navigation events with Matomo
            if (typeof _paq !== 'undefined' && evt.detail.target.id === 'cv-content') {
                // Track language change as virtual pageview
                const lang = new URLSearchParams(window.location.search).get('lang') || 'en';
                _paq.push(['setCustomUrl', window.location.href]);
                _paq.push(['setDocumentTitle', document.title]);
                _paq.push(['trackPageView']);
            }
        });

        // Log successful swaps for debugging
        document.body.addEventListener('htmx:afterRequest', function(evt) {
            if (evt.detail.successful) {
                console.log('HTMX request successful:', evt.detail.pathInfo.requestPath);
            }
        });
    }

    // =============================================================================
    // INITIALIZATION
    // =============================================================================

    // Initialize everything when DOM is ready
    document.addEventListener('DOMContentLoaded', function() {
        initMenuSystem();
        initPreferences();
        // Scroll behavior now handled by hyperscript on <body>
        initHTMXHandlers();
    });

})();