// ==UserScript==
// @name         FSM 收藏夹链接提取
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Extract and convert FSM torrent links
// @author       You
// @match        https://fsm.name/Torrents/mine?type=favorite*
// @grant        GM_setClipboard
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    let passkey = '';

    // 获取 passkey
    async function fetchPasskey() {
        try {
            const authorization = localStorage.getItem('token');
            const deviceId = localStorage.getItem('DeviceId');

            const response = await fetch('https://fsm.name/api/Users/infos', {
                headers: {
                    'accept': 'application/json, text/plain, */*',
                    'authorization': authorization,
                    'deviceid': deviceId
                }
            });

            const data = await response.json();
            if (data.success && data.data.passkey) {
                passkey = data.data.passkey;
                return true;
            }
            return false;
        } catch (error) {
            console.error('获取 passkey 失败:', error);
            return false;
        }
    }

    async function extractAndCopyLinks() {
        // 如果没有 passkey，尝试获取
        if (!passkey) {
            const success = await fetchPasskey();
            if (!success) {
                if (window.$notify) {
                    window.$notify({
                        message: '获取 passkey 失败',
                        type: 'error'
                    });
                } else {
                    alert('获取 passkey 失败');
                }
                return;
            }
        }

        // 获取所有链接
        const links = document.querySelectorAll('.el-table__body-wrapper a');

        // 转换链接
        const linksString = Array.from(links)
            .map(link => {
                const tid = new URL(link.href).searchParams.get('tid');
                return `https://api.fsm.name/Torrents/download?tid=${tid}&passkey=${passkey}&source=direct`;
            })
            .join('\n');

        // 复制到剪贴板
        GM_setClipboard(linksString);

        // 显示提示
        if (window.$notify) {
            window.$notify({
                message: '链接已复制到剪贴板',
                type: 'success'
            });
        } else {
            alert('链接已复制到剪贴板');
        }
    }

    function addExtractButton() {
        // 检查是否已存在按钮
        if (document.getElementById('extract-links-btn')) {
            return;
        }

        // 创建按钮
        const extractBtn = document.createElement('button');
        extractBtn.id = 'extract-links-btn';
        extractBtn.className = 'el-button el-button--primary el-button--small';
        extractBtn.style.position = 'fixed';
        extractBtn.style.right = '20px';
        extractBtn.style.bottom = '20px';
        extractBtn.style.zIndex = '9999';
        extractBtn.innerHTML = '提取下载链接';

        // 添加点击事件
        extractBtn.addEventListener('click', extractAndCopyLinks);

        // 添加到页面
        document.body.appendChild(extractBtn);
    }

    // 使用 MutationObserver 确保在页面动态加载后添加按钮
    const observer = new MutationObserver((mutations, obs) => {
        if (document.querySelector('.el-table__body-wrapper')) {
            addExtractButton();
        }
    });

    observer.observe(document.body, {
        childList: true,
        subtree: true
    });

    // 页面加载完成时也尝试添加按钮
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', addExtractButton);
    } else {
        addExtractButton();
    }

    // 初始获取 passkey
    fetchPasskey();
})();