JavDB to JavTrailers

JavDB 跳转 JavTrailers; From JavDB jump to JavTrailers.
Ask a question, post a review, or report the script.
Wrap lines
// ==UserScript==
// @name         JavDB to JavTrailers
// @namespace    http://tampermonkey.net/
// @version      1.5
// @description  JavDB 跳转 JavTrailers; From JavDB jump to JavTrailers.
// @author       Phoebe
// @match        https://javdb.com/*
// @match        https://javtrailers.com/video/*
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // --- JavTrailers 自动重定向逻辑---
    // 如 SNOS-001，依次尝试 snos00001, 1snos00001, 118snos00001，如果都不行则进入搜索页
    if (location.hostname === 'javtrailers.com') {
        if (document.title.includes('Page not found') || document.title.includes('404')) {
            const currentUrl = location.href;
            const pathParts = location.pathname.split('/');
            let vid = pathParts[pathParts.length - 1];

            if (!vid) return;

            console.log('JavTrailers 404 detected for:', vid);

            const retryKey = 'javtrailers_retry_chain';
            const retryChain = JSON.parse(sessionStorage.getItem(retryKey) || '[]');
            if (!retryChain.includes(vid)) {
                retryChain.push(vid);
                sessionStorage.setItem(retryKey, JSON.stringify(retryChain));
            }

            let newVid = null;
            let attempt = 0;

            // 判断当前是第几次尝试
            if (vid.match(/^[a-z]+\d{5}$/i)) {
                attempt = 1;   // snos00001
                newVid = '1' + vid;
            }
            else if (vid.startsWith('1') && vid.match(/^1[a-z]+\d{5}$/i)) {
                attempt = 2;   // 1snos00001
                const withoutOne = vid.substring(1);
                newVid = '118' + withoutOne;   // 118snos00001
            }
            else if (vid.startsWith('118') && vid.match(/^118[a-z]+\d{5}$/i)) {
                attempt = 3;   // 118snos00001
            }

            if (newVid && attempt < 3 && !retryChain.includes(newVid)) {
                // 第1、2、3次重试
                const newUrl = currentUrl.replace('/' + vid, '/' + newVid);
                console.log(`Retry ${attempt}/3: ${vid} → ${newVid}`);
                location.replace(newUrl);
            }
            else {
                // 三次都失败 → 跳转搜索页

                const searchMatch = vid.replace(/^\d+/, '').match(/^([a-z]+)0*(\d+)$/i);
                let searchId = searchMatch
                    ? `${searchMatch[1].toLowerCase()}-${searchMatch[2].padStart(3, '0')}`
                    : vid.replace(/^\d+/, '').replace(/(\d+)$/, '-$1');

                const searchUrl = `https://javtrailers.com/search/${searchId}`;
                console.log(`All 3 attempts failed. Jumping to search: ${searchUrl}`);
                sessionStorage.removeItem(retryKey);
                location.replace(searchUrl);
            }
        } else {
            sessionStorage.removeItem('javtrailers_retry_chain');
        }
        return;
    }

    // --- JavDB 页面按钮插入逻辑---
    function formatId(rawId) {
        const match = rawId.match(/^([A-Za-z]+)-?(\d+)$/);
        if (match) {
            const prefix = match[1].toLowerCase();
            const number = match[2].padStart(5, '0');
            return prefix + number;
        }
        return rawId.replace('-', '').toLowerCase().trim();
    }

    function createJumpButton(id, isMini = false) {
        const formattedId = formatId(id);
        const url = `https://javtrailers.com/video/${formattedId}`;

        let btn;
        if (isMini) {
            btn = document.createElement('span');
            btn.innerHTML = '🎬 预告片';
            btn.style.cssText = 'margin-left:8px; padding:0 4px; font-size:11px; background-color:#3e8ed0; color:#fff; border-radius:3px; cursor:pointer; display:inline-block; vertical-align:middle;';
            btn.addEventListener('click', (e) => {
                e.preventDefault();
                e.stopPropagation();
                window.open(url, '_blank');
            });
        } else {
            btn = document.createElement('a');
            btn.href = url;
            btn.target = '_blank';
            btn.className = 'button is-info is-outlined is-small';
            btn.innerHTML = `<span class="icon is-small"><i class="icon-play-circle"></i></span><span>預告片</span>`;
            btn.style.marginLeft = '5px';
            btn.style.height = '2.25em';
        }
        return btn;
    }

    function handlePage() {
        // 详情页
        if (window.location.pathname.startsWith('/v/')) {
            const labels = document.querySelectorAll('strong');
            for (const label of labels) {
                if ((label.innerText.includes('番號') || label.innerText.includes('ID'))&& !label.dataset.jumpAdded) {
                    const parent = label.parentElement;
                    const valueSpan = parent.querySelector('.value');
                    const copyBtn = parent.querySelector('.copy-to-clipboard');
                    if (valueSpan) {
                        const id = valueSpan.innerText.trim();
                        (copyBtn || valueSpan).after(createJumpButton(id, false));
                        label.dataset.jumpAdded = "true";
                    }
                    break;
                }
            }
        }

        // 列表页
        const items = document.querySelectorAll('.item');
        items.forEach(item => {
            const scoreEl = item.querySelector('.score');
            const idEl = item.querySelector('.video-title strong');
            if (scoreEl && idEl && !scoreEl.dataset.jumpAdded) {
                const id = idEl.innerText.trim();
                scoreEl.appendChild(createJumpButton(id, true));
                scoreEl.dataset.jumpAdded = "true";
            }
        });
    }

    handlePage();
    const observer = new MutationObserver(() => handlePage());
    observer.observe(document.body, { childList: true, subtree: true });

})();