// ==UserScript==
// @name         自动搜索油叉脚本
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  根据当前网页的域名自动在 Greasy Fork 上搜索脚本，并显示可移动的按钮，支持设置语言限制和搜索引擎
// @author       Your Name
// @license      MIT
// @match        *://*/*
// @icon         https://www.google.com/s2/favicons?domain=greasyfork.org
// @grant        GM_openInTab
// @grant        GM_registerMenuCommand
// @grant        GM_getValue
// @grant        GM_setValue
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    // 获取当前网页的域名
    var domain = window.location.hostname;

    // 获取按钮显示设置
    var showButton = GM_getValue('showButton', true);

    // 获取用户设置
    var useLanguageRestriction = GM_getValue('useLanguageRestriction', false);
    var selectedSearchEngine = GM_getValue('selectedSearchEngine', 'greasyfork');

    // 创建按钮
    var button = document.createElement('div');
    button.style.position = 'fixed';
    button.style.bottom = '10px';
    button.style.right = '10px';
    button.style.width = '100px';
    button.style.height = '30px';
    button.style.backgroundColor = 'rgba(0, 0, 0, 0.5)';
    button.style.color = 'white';
    button.style.textAlign = 'center';
    button.style.lineHeight = '30px';
    button.style.borderRadius = '5px';
    button.style.cursor = 'pointer';
    button.style.zIndex = '9999';
    button.innerText = '搜索脚本';
    button.style.display = showButton ? 'block' : 'none';

    // 鼠标悬停和离开效果
    button.onmouseover = function() {
        button.style.backgroundColor = 'rgba(0, 0, 0, 1)';
    };
    button.onmouseout = function() {
        button.style.backgroundColor = 'rgba(0, 0, 0, 0.5)';
    };

    let isDragging = false;

    // 按钮点击事件
    button.onclick = function() {
        if (!isDragging) {
            var searchURL;
            if (selectedSearchEngine === 'greasyfork') {
                searchURL = useLanguageRestriction
                    ? 'https://greasyfork.org/zh-CN/scripts/by-site/' + domain
                    : 'https://greasyfork.org/en/scripts/by-site/' + domain;
            } else if (selectedSearchEngine === 'google') {
                searchURL = 'https://www.google.com/search?q=site:greasyfork.org ' + domain + ' userscript';
            }
            GM_openInTab(searchURL, { active: true });
        }
    };

    // 使按钮可移动
    button.onmousedown = function(event) {
        isDragging = false;
        var shiftX = event.clientX - button.getBoundingClientRect().left;
        var shiftY = event.clientY - button.getBoundingClientRect().top;

        function moveAt(pageX, pageY) {
            isDragging = true;
            button.style.left = pageX - shiftX + 'px';
            button.style.top = pageY - shiftY + 'px';
        }

        function onMouseMove(event) {
            moveAt(event.pageX, event.pageY);
        }

        document.addEventListener('mousemove', onMouseMove);

        button.onmouseup = function() {
            document.removeEventListener('mousemove', onMouseMove);
            button.onmouseup = null;
        };
    };

    button.ondragstart = function() {
        return false;
    };

    document.body.appendChild(button);

    // 注册菜单命令
    GM_registerMenuCommand('显示/隐藏搜索按钮', function() {
        showButton = !showButton;
        button.style.display = showButton ? 'block' : 'none';
        GM_setValue('showButton', showButton);
    });

    GM_registerMenuCommand('启用/禁用语言限制', function() {
        useLanguageRestriction = !useLanguageRestriction;
        GM_setValue('useLanguageRestriction', useLanguageRestriction);
        alert('语言限制已' + (useLanguageRestriction ? '启用' : '禁用'));
    });

    GM_registerMenuCommand('选择搜索引擎', function() {
        var searchEngine = prompt('输入搜索引擎 (greasyfork 或 google):', selectedSearchEngine);
        if (searchEngine === 'greasyfork' || searchEngine === 'google') {
            selectedSearchEngine = searchEngine;
            GM_setValue('selectedSearchEngine', selectedSearchEngine);
            alert('搜索引擎已设置为 ' + selectedSearchEngine);
        } else {
            alert('无效的搜索引擎');
        }
    });

})();