// ==UserScript==
// @name         跨窗口存储数据拷贝工具
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  一键导出/导入Cookie、localStorage、sessionStorage，完美支持JSON对象，不丢失数据
// @author       米奇不妙屋
// @match        *://*/*
// @grant        GM_setClipboard
// @grant        unsafeWindow
// @run-at       document-end
// @license      MIT
// @downloadURL https://update.greasyfork.icu/scripts/571801/%E8%B7%A8%E7%AA%97%E5%8F%A3%E5%AD%98%E5%82%A8%E6%95%B0%E6%8D%AE%E6%8B%B7%E8%B4%9D%E5%B7%A5%E5%85%B7.user.js
// @updateURL https://update.greasyfork.icu/scripts/571801/%E8%B7%A8%E7%AA%97%E5%8F%A3%E5%AD%98%E5%82%A8%E6%95%B0%E6%8D%AE%E6%8B%B7%E8%B4%9D%E5%B7%A5%E5%85%B7.meta.js
// ==/UserScript==

(function() {
    'use strict';

    // 创建悬浮面板
    function createPanel() {
        const oldPanel = document.getElementById('storage-copy-panel');
        if (oldPanel) oldPanel.remove();

        const panel = document.createElement('div');
        panel.id = 'storage-copy-panel';
        panel.style.cssText = `
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 999999;
            background: #2d3748;
            color: white;
            padding: 12px 15px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            font-size: 14px;
            width: 180px;
            cursor: move;
            user-select: none;
        `;

        const btnStyle = `
            display: block;
            width: 100%;
            margin: 6px 0;
            padding: 8px;
            border: none;
            border-radius: 4px;
            background: #4299e1;
            color: white;
            cursor: pointer;
            font-size: 13px;
            transition: background 0.2s;
        `;

        const exportBtn = document.createElement('button');
        exportBtn.textContent = '📤 导出全部数据';
        exportBtn.style.cssText = btnStyle;
        exportBtn.addEventListener('click', exportAllData);

        const importBtn = document.createElement('button');
        importBtn.textContent = '📥 导入粘贴数据';
        importBtn.style.cssText = btnStyle;
        importBtn.addEventListener('click', importAllData);

        const closeBtn = document.createElement('button');
        closeBtn.textContent = '× 关闭面板';
        closeBtn.style.cssText = btnStyle + 'background: #e53e3e;';
        closeBtn.addEventListener('click', () => panel.remove());

        panel.append(exportBtn, importBtn, closeBtn);
        document.body.appendChild(panel);
        dragElement(panel);
    }

    // 拖拽功能
    function dragElement(elem) {
        let pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
        elem.onmousedown = dragStart;

        function dragStart(e) {
            e.preventDefault();
            pos3 = e.clientX;
            pos4 = e.clientY;
            document.onmouseup = dragEnd;
            document.onmousemove = dragMove;
        }

        function dragMove(e) {
            e.preventDefault();
            pos1 = pos3 - e.clientX;
            pos2 = pos4 - e.clientY;
            pos3 = e.clientX;
            pos4 = e.clientY;
            elem.style.top = (elem.offsetTop - pos2) + "px";
            elem.style.right = 'auto';
            elem.style.left = (elem.offsetLeft - pos1) + "px";
        }

        function dragEnd() {
            document.onmouseup = null;
            document.onmousemove = null;
        }
    }

    // ==============================================
    // 【修复】导出：完整保留 JSON 对象结构
    // ==============================================
    function exportAllData() {
        try {
            // Cookie
            const cookies = document.cookie;

            // localStorage：安全获取所有数据
            const localStorageData = {};
            for (let i = 0; i < localStorage.length; i++) {
                const key = localStorage.key(i);
                localStorageData[key] = localStorage.getItem(key);
            }

            // sessionStorage：安全获取所有数据
            const sessionStorageData = {};
            for (let i = 0; i < sessionStorage.length; i++) {
                const key = sessionStorage.key(i);
                sessionStorageData[key] = sessionStorage.getItem(key);
            }

            const allData = {
                url: window.location.origin,
                cookies,
                localStorage: localStorageData,
                sessionStorage: sessionStorageData,
                version: "2.0",
                timestamp: new Date().toISOString()
            };

            GM_setClipboard(JSON.stringify(allData, null, 2));
            alert("✅ 导出成功！数据已复制（JSON 对象不会丢失）");

        } catch (e) {
            alert("❌ 导出失败：" + e.message);
            console.error(e);
        }
    }

    // ==============================================
    // 【修复】导入：原样写入，不破坏 JSON 字符串
    // ==============================================
    function importAllData() {
        try {
            navigator.clipboard.readText().then(text => {
                if (!text) return alert("❌ 剪贴板为空");

                const data = JSON.parse(text);
                if (!data) return alert("❌ 数据格式错误");

                // 导入 Cookie
                if (data.cookies) {
                    data.cookies.split('; ').forEach(cookie => {
                        if (!cookie.includes('=')) return;
                        const [name, ...vs] = cookie.split('=');
                        const value = vs.join('=');
                        document.cookie = `${name}=${value}; path=/; max-age=31536000; SameSite=Lax`;
                    });
                }

                // 导入 localStorage【原样写入，不解析、不破坏】
                if (data.localStorage) {
                    Object.entries(data.localStorage).forEach(([k, v]) => {
                        try {
                            localStorage.setItem(k, v);
                        } catch {}
                    });
                }

                // 导入 sessionStorage【原样写入，不解析、不破坏】
                if (data.sessionStorage) {
                    Object.entries(data.sessionStorage).forEach(([k, v]) => {
                        try {
                            sessionStorage.setItem(k, v);
                        } catch {}
                    });
                }

                alert("✅ 导入成功！刷新页面即可生效 ✅");
            }).catch(err => {
                alert("❌ 剪贴板权限被拒绝，请手动允许后再试");
            });

        } catch (e) {
            alert("❌ 导入失败：" + e.message);
            console.error(e);
        }
    }

    // 快捷键 Alt + S
    document.addEventListener('keydown', e => {
        if (e.altKey && e.key === 's') createPanel();
    });

    window.addEventListener('load', () => setTimeout(createPanel, 1000));
})();