// ==UserScript==
// @name         智谱 GLM Coding 快速订阅助手 (优化版)
// @name:en      智谱 GLM Coding Fast Subscription Helper (Optimized)
// @namespace    http://tampermonkey.net/
// @version      7.2.0
// @description  优化性能与结构，解除按钮限制，自动分配快捷键映射
// @description:en Optimize performance and structure, remove button restrictions, and automatically allocate shortcut key mappings
// @author       Tim
// @match        *://www.bigmodel.cn/*
// @match        https://www.bigmodel.cn/glm-coding
// @match        https://bigmodel.cn/glm-coding*
// @run-at       document-start
// @grant        none
// @license      MIT
// @buy me a coff   邀请链接,邀请码新购，下单立减5%金额 https://www.bigmodel.cn/glm-coding?ic=EAADSLV8VZ
// @downloadURL https://update.greasyfork.icu/scripts/573121/%E6%99%BA%E8%B0%B1%20GLM%20Coding%20%E5%BF%AB%E9%80%9F%E8%AE%A2%E9%98%85%E5%8A%A9%E6%89%8B%20%28%E4%BC%98%E5%8C%96%E7%89%88%29.user.js
// @updateURL https://update.greasyfork.icu/scripts/573121/%E6%99%BA%E8%B0%B1%20GLM%20Coding%20%E5%BF%AB%E9%80%9F%E8%AE%A2%E9%98%85%E5%8A%A9%E6%89%8B%20%28%E4%BC%98%E5%8C%96%E7%89%88%29.meta.js
// ==/UserScript==

(function () {
    'use strict';

    // ==========================================
    // 配置与常量
    // ==========================================
    const CONFIG = {
        KEYWORDS: /购买|订阅|立即|下单|选购/,
        SELECTORS: 'button, .ant-btn, .btn',
        CLOSE_SELECTOR: '.el-dialog__headerbtn', // 弹窗关闭按钮
        DEBOUNCE_TIME: 150,
        PANEL_ID: 'glm-helper-panel',
        TIME_URL: 'https://time.is/zh/Beijing'
    };

    // ==========================================
    // 工具函数
    // ==========================================
    const Utils = {
        debounce(fn, delay) {
            let timer = null;
            return function (...args) {
                if (timer) clearTimeout(timer);
                timer = setTimeout(() => fn.apply(this, args), delay);
            };
        },
        deepModify(obj) {
            if (!obj || typeof obj !== 'object') return;

            // 处理当前层级
            if ('isSoldOut' in obj) obj.isSoldOut = false;
            if ('soldOut' in obj) obj.soldOut = false;
            if ('stock' in obj && obj.stock === 0) obj.stock = 999;
            if ('disabled' in obj && (obj.price !== undefined || obj.productId || obj.title)) {
                obj.disabled = false;
            }

            // 递归子对象
            for (let key in obj) {
                if (Object.prototype.hasOwnProperty.call(obj, key) && obj[key] && typeof obj[key] === 'object') {
                    this.deepModify(obj[key]);
                }
            }
        },
        getPlanInfo(btn) {
            const btnText = btn.innerText.trim().replace(/\n/g, ' ');
            // 提取动作名：优先保留“订阅中”、“处理中”等状态词
            const action = btnText.length > 5 ? btnText.substring(0, 5) : btnText;
            let container = btn.parentElement;
            let planName = '';

            // 向上回溯 4 层寻找卡片容器
            for (let i = 0; i < 4; i++) {
                if (!container) break;
                // 常见的标题识别逻辑：寻找卡片中字相对较少且在顶部的显著文字
                const candidates = Array.from(container.querySelectorAll('div, span, h1, h2, p'))
                    .filter(el => {
                        const text = el.innerText.trim();
                        return text.length > 0 &&
                               text.length < 15 &&
                               !text.includes('¥') &&
                               !text.includes(btn.innerText.trim());
                    });

                if (candidates.length > 0) {
                    // 通常第一个匹配项（在 DOM 顺序上靠前）是标题
                    planName = candidates[0].innerText.trim();
                    break;
                }
                container = container.parentElement;
            }

            return planName ? `${action}-${planName}` : btn.innerText.trim().substring(0, 8);
        },
        getSubscriptionPeriod() {
            // 扫描常见的激活态类名：active, is-active, selected, checked
            const periodElements = Array.from(document.querySelectorAll('div, span, li, button'))
                .filter(el => {
                    const text = el.innerText.trim();
                    const isPeriod = /包月|包季|包年|按月|按年/.test(text);
                    if (!isPeriod) return false;

                    const activeClasses = ['active', 'is-active', 'selected', 'checked', 'current'];
                    const hasActiveClass = activeClasses.some(cls => el.classList.contains(cls)) ||
                                          el.getAttribute('aria-checked') === 'true' ||
                                          el.getAttribute('aria-selected') === 'true';

                    return hasActiveClass;
                });

            return periodElements.length > 0 ? periodElements[0].innerText.trim() : '未识别';
        }
    };

    // ==========================================
    // UI 管理器
    // ==========================================
    const UIManager = {
        panel: null,
        init() {
            if (this.panel) return;
            this.panel = document.createElement('div');
            this.panel.id = CONFIG.PANEL_ID;
            Object.assign(this.panel.style, {
                position: 'fixed',
                left: '20px',
                top: '50%',
                transform: 'translateY(-50%)',
                backgroundColor: 'rgba(0, 0, 0, 0.85)',
                color: '#fff',
                padding: '15px',
                borderRadius: '12px',
                zIndex: '10000',
                fontSize: '13px',
                lineHeight: '1.6',
                pointerEvents: 'auto', // 恢复交互以支持点击链接
                boxShadow: '0 8px 24px rgba(0,0,0,0.4)',
                border: '1px solid #444',
                display: 'none',
                backdropFilter: 'blur(4px)',
                fontFamily: 'Inter, system-ui, sans-serif'
            });
            document.documentElement.appendChild(this.panel);
        },
        update(buttons) {
            if (!this.panel) this.init();

            this.panel.style.display = 'block'; // 持久显示
            const period = Utils.getSubscriptionPeriod();
            const header = `
                <div style="border-bottom: 1px solid #444; margin-bottom: 10px; padding-bottom: 8px;">
                    <b style="color: #00ff88; display: block; font-size: 14px;">🚀 快速订阅助手</b>
                    <span style="color: #00e5ff; font-size: 11px;">[ 当前周期 ] ${period}</span>
                </div>
            `;

            // 订阅按钮快捷键列表
            let list = buttons.map((btnObj, index) => {
                const label = btnObj.label;
                const isProcessing = label.includes('中') || label.includes('载') || label.includes('处理');
                const style = isProcessing ? 'color: #00e5ff; font-style: italic; opacity: 0.8;' : 'color: #fff;';

                return `<div><span style="color: #ffcc00; font-weight: bold; margin-right: 8px;">[ ${index + 1} ]</span><span style="${style}">${label}</span></div>`;
            }).join('');

            // 始终显示 Esc 快捷键
            const separator = list ? '<div style="border-top: 1px solid #444; margin-top: 8px; padding-top: 4px;"></div>' : '';
            list += `${separator}<div><span style="color: #00e5ff; font-weight: bold; margin-right: 8px;">[ Esc ]</span>关闭当前弹窗</div>`;

            // 始终显示对时引导
            list += `<div style="margin-top: 4px;"><span style="color: #ff8c00; font-weight: bold; margin-right: 8px;">[ Time ]</span><a href="${CONFIG.TIME_URL}" target="_blank" rel="noopener noreferrer" style="color: #bbb; text-decoration: underline; pointer-events: auto; cursor: pointer;">⌚ 精准对时</a></div>`;

            this.panel.innerHTML = header + list;
        }
    };

    // ==========================================
    // 动作管理器
    // ==========================================
    const ActionManager = {
        buttons: [],
        refresh: Utils.debounce(function () {
            // 1. 解除原生置灰
            document.querySelectorAll('button[disabled], .ant-btn-disabled').forEach(btn => {
                btn.removeAttribute('disabled');
                btn.classList.remove('ant-btn-disabled');
            });

            // 2. 扫描有效按钮并提取套餐信息
            const rawButtons = Array.from(document.querySelectorAll(CONFIG.SELECTORS));
            this.buttons = rawButtons.filter(btn => {
                const isVisible = btn.offsetWidth > 0 && btn.offsetHeight > 0;
                return isVisible && CONFIG.KEYWORDS.test(btn.innerText);
            }).map(btn => ({
                element: btn,
                label: Utils.getPlanInfo(btn)
            }));

            // 3. 更新 UI
            UIManager.update(this.buttons);
        }, CONFIG.DEBOUNCE_TIME),

        trigger(index) {
            const btnObj = this.buttons[index - 1];
            if (btnObj && btnObj.element) {
                btnObj.element.click();
                console.log(`[助手] 触发快捷键 ${index} ->`, btnObj.label);
            }
        }
    };

    // ==========================================
    // 拦截器
    // ==========================================
    const Interceptor = {
        init() {
            this.patchJSON();
            this.patchFetch();
            this.patchXHR();
        },
        patchJSON() {
            const originalParse = JSON.parse;
            JSON.parse = function (text, reviver) {
                const result = originalParse(text, reviver);
                try { Utils.deepModify(result); } catch (e) { }
                return result;
            };
        },
        patchFetch() {
            const originalFetch = window.fetch;
            window.fetch = async function (...args) {
                const response = await originalFetch.apply(this, args);
                const contentType = response.headers.get('content-type') || '';
                if (contentType.includes('application/json')) {
                    try {
                        const clone = response.clone();
                        let data = await clone.json();
                        Utils.deepModify(data);
                        return new Response(JSON.stringify(data), {
                            status: response.status,
                            statusText: response.statusText,
                            headers: response.headers
                        });
                    } catch (e) { }
                }
                return response;
            };
        },
        patchXHR() {
            const originalOpen = XMLHttpRequest.prototype.open;
            XMLHttpRequest.prototype.open = function (method, url, ...rest) {
                this.addEventListener('readystatechange', () => {
                    if (this.readyState === 4 && this.status === 200) {
                        try {
                            const contentType = this.getResponseHeader('content-type') || '';
                            if (contentType.includes('application/json')) {
                                let data = JSON.parse(this.responseText);
                                Utils.deepModify(data);
                                Object.defineProperty(this, 'responseText', {
                                    get: () => JSON.stringify(data),
                                    configurable: true
                                });
                                Object.defineProperty(this, 'response', {
                                    get: () => data,
                                    configurable: true
                                });
                            }
                        } catch (e) { }
                    }
                });
                return originalOpen.apply(this, [method, url, ...rest]);
            };
        }
    };

    // ==========================================
    // 启动初始化
    // ==========================================
    Interceptor.init();

    window.addEventListener('keydown', (e) => {
        // 特殊快捷键：Esc 关闭弹窗
        if (e.key === 'Escape') {
            const closeBtns = Array.from(document.querySelectorAll(CONFIG.CLOSE_SELECTOR));
            // 找到最后一个（通常是最新弹出的）且可见的关闭按钮
            const targetBtn = closeBtns.reverse().find(btn => btn.offsetWidth > 0 && btn.offsetHeight > 0);

            if (targetBtn) {
                e.preventDefault();
                targetBtn.click();
                console.log('[助手] 触发快捷键 Esc -> 已执行关闭操作', targetBtn);
            } else {
                console.log('[助手] 触发快捷键 Esc -> 未在页面上找到可见的关闭按钮');
            }
            return;
        }

        if (!isNaN(e.key) && e.key !== '0' && !e.ctrlKey && !e.altKey && !e.metaKey) {
            const activeElement = document.activeElement;
            if (activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA' || activeElement.isContentEditable)) {
                return;
            }
            ActionManager.trigger(parseInt(e.key));
        }
    });

    const observer = new MutationObserver(() => ActionManager.refresh());

    // 尽早注入浮窗容器
    UIManager.init();

    // 监听 DOM 加载（增强监听范围，包括属性和字符变化）
    const observerConfig = { childList: true, subtree: true, characterData: true, attributes: true, attributeFilter: ['class', 'disabled'] };

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', () => {
            observer.observe(document.body, observerConfig);
            ActionManager.refresh();
        });
    } else {
        observer.observe(document.body, observerConfig);
        ActionManager.refresh();
    }

    console.log('[助手] 优化版已就绪，享受极速订阅体验。');
})();