Any Hackernews Link

Check if current page has been posted to Hacker News

// ==UserScript==
// @name         Any Hackernews Link
// @namespace    http://tampermonkey.net/
// @version      0.1.8
// @description  Check if current page has been posted to Hacker News
// @author       RoCry
// @icon         https://news.ycombinator.com/favicon.ico
// @match        https://*/*
// @exclude      https://news.ycombinator.com/*
// @exclude      https://hn.algolia.com/*
// @exclude      https://*.google.com/*
// @exclude      https://mail.yahoo.com/*
// @exclude      https://outlook.com/*
// @exclude      https://proton.me/*
// @exclude      https://localhost/*
// @exclude      https://127.0.0.1/*
// @exclude      https://192.168.*.*/*
// @exclude      https://10.*.*.*/*
// @exclude      https://172.16.*.*/*
// @exclude      https://web.whatsapp.com/*
// @exclude      https://*.facebook.com/messages/*
// @exclude      https://*.twitter.com/messages/*
// @exclude      https://*.linkedin.com/messaging/*
// @grant        GM_xmlhttpRequest
// @connect      hn.algolia.com
// @grant        GM_addStyle
// @grant        GM_getValue
// @grant        GM_setValue
// @require https://update.greasyfork.org/scripts/524693/1525919/Any%20Hackernews%20Link%20Utils.js
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // Fallback implementation for Safari
    if (typeof GM_addStyle === 'undefined') {
        window.GM_addStyle = function(css) {
            const style = document.createElement('style');
            style.textContent = css;
            document.head.appendChild(style);
            return style;
        };
    }

    // Fallback implementations for GM storage functions
    if (typeof GM_getValue === 'undefined') {
        window.GM_getValue = function(key, defaultValue) {
            const value = localStorage.getItem('GM_' + key);
            return value === null ? defaultValue : JSON.parse(value);
        };
    }

    if (typeof GM_setValue === 'undefined') {
        window.GM_setValue = function(key, value) {
            localStorage.setItem('GM_' + key, JSON.stringify(value));
        };
    }

    /**
     * Constants
     */
    const POSITIONS = {
        BOTTOM_LEFT: { bottom: '20px', left: '20px', top: 'auto', right: 'auto' },
        BOTTOM_RIGHT: { bottom: '20px', right: '20px', top: 'auto', left: 'auto' },
        TOP_LEFT: { top: '20px', left: '20px', bottom: 'auto', right: 'auto' },
        TOP_RIGHT: { top: '20px', right: '20px', bottom: 'auto', left: 'auto' }
    };

    /**
     * Styles
     */
    const STYLES = `
        @keyframes fadeIn {
            0% { opacity: 0; transform: translateY(10px); }
            100% { opacity: 1; transform: translateY(0); }
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.6; }
            100% { opacity: 1; }
        }
        #hn-float {
            position: fixed;
            bottom: 20px;
            left: 20px;
            z-index: 9999;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.98);
            padding: 8px 12px;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.05);
            cursor: move;
            user-select: none;
            transition: all 0.2s ease;
            max-width: 50px;
            overflow: hidden;
            opacity: 0.95;
            height: 40px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            animation: fadeIn 0.3s ease forwards;
            will-change: transform, max-width, box-shadow;
            color: #111827;
            display: flex;
            align-items: center;
            height: 40px;
            box-sizing: border-box;
        }
        #hn-float:hover {
            max-width: 600px;
            opacity: 1;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.05);
        }
        #hn-float .hn-icon {
            min-width: 24px;
            width: 24px;
            height: 24px;
            background: linear-gradient(135deg, #ff6600, #ff7f33);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            border-radius: 6px;
            flex-shrink: 0;
            position: relative;
            font-size: 13px;
            text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
            transition: transform 0.2s ease;
            line-height: 1;
            padding-bottom: 1px;
        }
        #hn-float:hover .hn-icon {
            transform: scale(1.05);
        }
        #hn-float .hn-icon.not-found {
            background: #9ca3af;
        }
        #hn-float .hn-icon.found {
            background: linear-gradient(135deg, #ff6600, #ff7f33);
        }
        #hn-float .hn-icon.loading {
            background: #6b7280;
            animation: pulse 1.5s infinite;
        }
        #hn-float .hn-icon .badge {
            position: absolute;
            top: -4px;
            right: -4px;
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            color: white;
            border-radius: 8px;
            min-width: 14px;
            height: 14px;
            font-size: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 3px;
            font-weight: 600;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            border: 1.5px solid white;
        }
        #hn-float .hn-info {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.4;
            font-size: 13px;
            opacity: 0;
            transition: opacity 0.2s ease;
            width: 0;
            flex: 0;
        }
        #hn-float:hover .hn-info {
            opacity: 1;
            width: auto;
            flex: 1;
        }
        #hn-float .hn-info a {
            color: inherit;
            font-weight: 500;
            text-decoration: none;
        }
        #hn-float .hn-info a:hover {
            text-decoration: underline;
        }
        #hn-float .hn-stats {
            color: #6b7280;
            font-size: 12px;
            margin-top: 2px;
        }
        @media (prefers-color-scheme: dark) {
            #hn-float {
                background: rgba(17, 24, 39, 0.95);
                color: #e5e7eb;
                box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.1);
            }
            #hn-float:hover {
                box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
            }
            #hn-float .hn-stats {
                color: #9ca3af;
            }
            #hn-float .hn-icon .badge {
                border-color: rgba(17, 24, 39, 0.95);
            }
        }
    `;

    /**
     * UI Component
     */
    const UI = {
        /**
         * Create and append the floating element to the page
         * @returns {HTMLElement} - The created element
         */
        createFloatingElement() {
            const div = document.createElement('div');
            div.id = 'hn-float';
            // Create icon element
            const iconDiv = document.createElement('div');
            iconDiv.className = 'hn-icon loading';
            iconDiv.textContent = 'Y';
            
            // Create info element
            const infoDiv = document.createElement('div');
            infoDiv.className = 'hn-info';
            infoDiv.textContent = 'Checking HN...';
            
            // Append children
            div.appendChild(iconDiv);
            div.appendChild(infoDiv);
            document.body.appendChild(div);

            // Apply saved position
            const savedPosition = GM_getValue('hnPosition', 'BOTTOM_LEFT');
            this.applyPosition(div, POSITIONS[savedPosition]);

            // Add drag functionality
            this.addDragHandlers(div);

            return div;
        },

        /**
         * Update the floating element with HN data
         * @param {Object|null} data - HN post data or null if not found
         */
        applyPosition(element, position) {
            Object.assign(element.style, position);
        },

        getClosestPosition(x, y) {
            const viewportWidth = window.innerWidth;
            const viewportHeight = window.innerHeight;
            const isTop = y < viewportHeight / 2;
            const isLeft = x < viewportWidth / 2;

            if (isTop) {
                return isLeft ? 'TOP_LEFT' : 'TOP_RIGHT';
            } else {
                return isLeft ? 'BOTTOM_LEFT' : 'BOTTOM_RIGHT';
            }
        },

        addDragHandlers(element) {
            let isDragging = false;
            let currentX;
            let currentY;
            let initialX;
            let initialY;

            element.addEventListener('mousedown', e => {
                if (e.target.tagName === 'A') return; // Don't drag when clicking links
                
                isDragging = true;
                element.style.transition = 'none';
                
                initialX = e.clientX - element.offsetLeft;
                initialY = e.clientY - element.offsetTop;
            });

            document.addEventListener('mousemove', e => {
                if (!isDragging) return;

                e.preventDefault();
                
                currentX = e.clientX - initialX;
                currentY = e.clientY - initialY;

                // Keep the element within viewport bounds
                currentX = Math.max(0, Math.min(currentX, window.innerWidth - element.offsetWidth));
                currentY = Math.max(0, Math.min(currentY, window.innerHeight - element.offsetHeight));

                element.style.left = `${currentX}px`;
                element.style.top = `${currentY}px`;
                element.style.bottom = 'auto';
                element.style.right = 'auto';
            });

            document.addEventListener('mouseup', e => {
                if (!isDragging) return;
                
                isDragging = false;
                element.style.transition = 'all 0.2s ease';

                const position = this.getClosestPosition(currentX + element.offsetWidth / 2, currentY + element.offsetHeight / 2);
                this.applyPosition(element, POSITIONS[position]);
                
                // Save position
                GM_setValue('hnPosition', position);
            });
        },

        updateFloatingElement(data) {
            const iconDiv = document.querySelector('#hn-float .hn-icon');
            const infoDiv = document.querySelector('#hn-float .hn-info');
            
            iconDiv.classList.remove('loading');
            
            if (!data) {
                iconDiv.classList.add('not-found');
                iconDiv.classList.remove('found');
                iconDiv.textContent = 'Y';
                infoDiv.textContent = 'Not found on HN';
                return;
            }
            
            iconDiv.classList.remove('not-found');
            iconDiv.classList.add('found');
            // Clear existing content
            iconDiv.textContent = 'Y';
            
            // Make icon clickable
            iconDiv.style.cursor = 'pointer';
            iconDiv.onclick = (e) => {
                e.stopPropagation();
                window.open(data.link, '_blank');
            };
            
            // Add badge if there are comments
            if (data.comments > 0) {
                const badge = document.createElement('span');
                badge.className = 'badge';
                badge.textContent = data.comments > 999 ? '999+' : data.comments.toString();
                iconDiv.appendChild(badge);
            }
            
            // Clear and rebuild info content
            infoDiv.textContent = '';
            
            const titleDiv = document.createElement('div');
            const titleLink = document.createElement('a');
            titleLink.href = data.link;
            titleLink.target = '_blank';
            titleLink.textContent = data.title;
            titleDiv.appendChild(titleLink);
            
            const statsDiv = document.createElement('div');
            statsDiv.className = 'hn-stats';
            statsDiv.textContent = `${data.points} points | ${data.comments} comments | ${data.posted}`;
            
            infoDiv.appendChild(titleDiv);
            infoDiv.appendChild(statsDiv);
        }
    };

    /**
     * Initialize the script
     */
    function init() {
        // Skip if we're in an iframe
        if (window.top !== window.self) {
            console.log('📌 Skipping execution in iframe');
            return;
        }

        // Skip if document is hidden (like background tabs or invisible frames)
        if (document.hidden) {
            console.log('📌 Skipping execution in hidden document');
            // Add listener for when the tab becomes visible
            document.addEventListener('visibilitychange', function onVisible() {
                if (!document.hidden) {
                    init();
                    document.removeEventListener('visibilitychange', onVisible);
                }
            });
            return;
        }

        const currentUrl = window.location.href;
        
        // Check if the floating element already exists
        if (document.getElementById('hn-float')) {
            console.log('📌 HN float already exists, skipping');
            return;
        }

        if (URLUtils.shouldIgnoreUrl(currentUrl)) {
            console.log('🚫 Ignored URL:', currentUrl);
            return;
        }

        // Check if content is primarily English
        if (!ContentUtils.isEnglishContent()) {
            console.log('🈂️ Non-English content detected, skipping');
            return;
        }

        GM_addStyle(STYLES);
        const normalizedUrl = URLUtils.normalizeUrl(currentUrl);
        console.log('🔗 Normalized URL:', normalizedUrl);
        
        UI.createFloatingElement();
        HNApi.checkHackerNews(normalizedUrl, UI.updateFloatingElement);
    }

    // Start the script
    init();
})();