<?php
/**
 * Frontend functionality for AI Share & Summarize plugin
 *
 * @package AiShareSummarize
 * @since 1.1.3
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

/**
 * Class to handle frontend display and functionality
 */
class AyudaWP_AISS_Frontend {
    
    /**
     * Constructor
     */
    public function __construct() {
        add_action('wp_enqueue_scripts', array($this, 'ayudawp_enqueue_scripts'));
        add_filter('the_content', array($this, 'ayudawp_add_share_buttons'));
    }
    
    /**
     * Enqueue frontend scripts and styles
     */
    public function ayudawp_enqueue_scripts() {
        if (is_singular() || is_archive() || is_home()) {
            wp_enqueue_style(
                'ayudawp-aiss-styles',
                AYUDAWP_AISS_PLUGIN_URL . 'assets/css/ai-share-summarize.css',
                array(),
                AYUDAWP_AISS_VERSION
            );
            
            $l10n_data = array(
                'promptCopied' => __('Prompt copied to clipboard!', 'ai-share-summarize'),
                'googleAiTooltipShort' => __('Google AI: Copy prompt & open', 'ai-share-summarize'),
                'googleAiTooltipLong' => __('Copy prompt and open Google Gemini', 'ai-share-summarize'),
                'platformNames' => array(
                    'twitter' => 'X (Twitter)',
                    'linkedin' => 'LinkedIn',
                    'facebook' => 'Facebook',
                    'telegram' => 'Telegram',
                    'whatsapp' => 'WhatsApp',
                    'email' => __('Email', 'ai-share-summarize'),
                    'raindrop' => 'Raindrop',
                    'claude' => 'Claude AI',
                    'chatgpt' => 'ChatGPT',
                    'grok' => 'Grok',
                    'perplexity' => 'Perplexity'
                )
            );
            
            wp_add_inline_script('jquery', '
            var ayudawpAissL10n = ' . wp_json_encode($l10n_data) . ';
            
            function copyToClipboard(text) {
                if (navigator.clipboard && window.isSecureContext) {
                    return navigator.clipboard.writeText(text);
                } else {
                    var textArea = document.createElement("textarea");
                    textArea.value = text;
                    textArea.style.position = "fixed";
                    textArea.style.left = "-999999px";
                    textArea.style.top = "-999999px";
                    document.body.appendChild(textArea);
                    textArea.focus();
                    textArea.select();
                    
                    return new Promise((resolve, reject) => {
                        try {
                            document.execCommand("copy") ? resolve() : reject();
                        } catch (err) {
                            reject(err);
                        } finally {
                            textArea.remove();
                        }
                    });
                }
            }
            
            function showNotification(message, type) {
                if (document.querySelector(".ayudawp-notification")) return;
                
                var notification = document.createElement("div");
                notification.className = "ayudawp-notification ayudawp-notification-" + type;
                notification.textContent = message;
                notification.style.cssText = "position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#333;color:white;padding:16px 24px;border-radius:8px;font-size:14px;font-weight:500;z-index:9999;box-shadow:0 8px 32px rgba(0,0,0,0.3);opacity:0;transition:all 0.4s ease;border:1px solid #555;";
                
                document.body.appendChild(notification);
                
                setTimeout(function() {
                    notification.style.opacity = "1";
                }, 50);
                
                setTimeout(function() {
                    notification.style.opacity = "0";
                    notification.style.transform = "translate(-50%,-50%) scale(0.9)";
                    setTimeout(function() {
                        if (notification.parentNode) {
                            notification.parentNode.removeChild(notification);
                        }
                    }, 400);
                }, 2500);
            }
            
            document.addEventListener("click", function(e) {
                var button = e.target.closest(".ayudawp-share-btn");
                if (!button) return;
                
                e.preventDefault();
                e.stopPropagation();
                e.stopImmediatePropagation();
                
                var url = button.getAttribute("data-url");
                var platform = button.getAttribute("data-platform");
                
                if (!platform) {
                    var classes = button.className.split(" ");
                    var platforms = ["twitter", "linkedin", "facebook", "telegram", "whatsapp", "email", "raindrop", "claude", "chatgpt", "google-ai", "grok", "perplexity"];
                    for (var i = 0; i < platforms.length; i++) {
                        if (classes.indexOf(platforms[i]) !== -1) {
                            platform = platforms[i];
                            break;
                        }
                    }
                }
                
                if (!url) {
                    return false;
                }
                
                if (platform === "google-ai" || button.classList.contains("google-ai")) {
                    try {
                        var urlParts = url.split("?");
                        var queryString = urlParts.length > 1 ? urlParts[1] : "";
                        var urlParams = new URLSearchParams(queryString);
                        var prompt = urlParams.get("prompt") || "";
                        
                        if (prompt) {
                            copyToClipboard(decodeURIComponent(prompt)).then(function() {
                                showNotification(ayudawpAissL10n.promptCopied, "success");
                                setTimeout(function() {
                                    window.open("https://gemini.google.com/app", "_blank", "noopener,noreferrer");
                                }, 500);
                            }).catch(function() {
                                window.open("https://gemini.google.com/app", "_blank", "noopener,noreferrer");
                            });
                        } else {
                            window.open("https://gemini.google.com/app", "_blank", "noopener,noreferrer");
                        }
                    } catch (error) {
                        window.open("https://gemini.google.com/app", "_blank", "noopener,noreferrer");
                    }
                    return false;
                }
                
                if (platform === "twitter" || platform === "linkedin" || platform === "facebook" || platform === "telegram" ||
                    button.classList.contains("twitter") || button.classList.contains("linkedin") || 
                    button.classList.contains("facebook") || button.classList.contains("telegram")) {
                    
                    var width = 600, height = 400;
                    var left = (screen.width / 2) - (width / 2);
                    var top = (screen.height / 2) - (height / 2);
                    
                    window.open(url, "share", "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + ",scrollbars=yes,resizable=yes");
                    return false;
                }
                
                window.open(url, "_blank", "noopener,noreferrer");
                return false;
                
            }, true);
            ');
        }
    }
    
    /**
     * Add share buttons to content
     *
     * @param string $content Post content
     * @return string Modified content with buttons
     */
    public function ayudawp_add_share_buttons($content) {
        if (!ayudawp_aiss_should_display_buttons()) {
            return $content;
        }
        
        $options = get_option('ayudawp_aiss_options');
        $insert_position = isset($options['auto_insert_position']) ? $options['auto_insert_position'] : 'after_content';
        
        if ($insert_position === 'disabled') {
            return $content;
        }
        
        $buttons_html = AyudaWP_AISS_Buttons::ayudawp_generate_buttons_html();
        
        switch ($insert_position) {
            case 'before_content':
                return $buttons_html . $content;
            case 'after_content':
                return $content . $buttons_html;
            case 'both':
                return $buttons_html . $content . $buttons_html;
            default:
                return $content . $buttons_html;
        }
    }
}