// ==UserScript==
// @name         腾讯会议智能操作 & 自动关闭
// @namespace    https://meeting.tencent.com/
// @version      1.0.0
// @description  打开腾讯会议链接后：进行中→加入会议；未开始→添加到会议列表；操作后倒计时关闭页面（可取消）
// @author       bo Sea
// @match        https://meeting.tencent.com/dm/*
// @match        https://meeting.weixin.qq.com/dm/*
// @grant        window.close
// @run-at       document-idle
// @license MIT
// ==/UserScript==

(function () {
    'use strict';

    const THRESHOLD = 5 * 60;
    const CLOSE_SEC = 5;
    let cancelFlag = false;
    let closeTimer = null;

    function injectStyle() {
        if (document.getElementById('tm-style')) return;
        const s = document.createElement('style');
        s.id = 'tm-style';
        s.textContent = `
            @keyframes tm-in {
                from { transform: translateX(120%); opacity: 0 }
                to   { transform: translateX(0);     opacity: 1 }
            }
            #tm-box {
                position: fixed; top: 16px; right: 16px; z-index: 999999;
                width: 310px; border-radius: 12px; overflow: hidden;
                box-shadow: 0 8px 32px rgba(0,0,0,.2);
                font-family: system-ui, -apple-system, sans-serif;
                animation: tm-in .3s ease-out;
            }
            .tm-header {
                padding: 14px 18px; color: #fff;
                display: flex; align-items: center; gap: 10px;
            }
            .tm-header .tm-icon  { font-size: 20px }
            .tm-header .tm-title { font-weight: 600; font-size: 15px }
            .tm-body {
                padding: 14px 18px; background: #fff;
                font-size: 13px; line-height: 1.8; color: #333;
            }
            .tm-subject   { font-weight: 600 }
            .tm-code      { color: #999; font-size: 12px }
            .tm-hint      { color: #999; font-size: 12px; margin-top: 4px }
            .tm-status    { margin-top: 6px }
            .tm-countdown { font-size: 20px; font-weight: 700; margin-top: 8px }
            .tm-bar {
                margin-top: 12px; padding: 8px 12px;
                background: #f5f5f5; border-radius: 6px;
                display: flex; align-items: center; justify-content: space-between;
            }
            .tm-bar .tm-sec { color: #e53935; font-weight: bold }
            .tm-cancel-btn {
                padding: 4px 14px; font-size: 12px;
                border: 1px solid #e53935; color: #e53935;
                border-radius: 4px; background: #fff; cursor: pointer;
            }
            .tm-cancel-btn:hover { background: #fce4ec }
            .tm-muted { color: #999 }
            .tm-green { color: #0f9d58 }
            .tm-amber { color: #f9a825 }
        `;
        document.head.appendChild(s);
    }

    function getData() {
        const el = id => document.getElementById(id);
        const txt = id => (el(id)?.textContent || '').trim();
        let start = null;
        const dm = txt('tm-meeting-start-date').match(/(\d{4})\s*年\s*(\d{1,2})\s*月\s*(\d{1,2})\s*日/);
        const tm = txt('tm-meeting-start-time').match(/(\d{1,2}):(\d{2})/);
        if (dm && tm) start = new Date(+dm[1], dm[2] - 1, +dm[3], +tm[1], +tm[2]);
        return {
            state: txt('tm-meeting-state'),
            subject: txt('tm-meeting-subject') || '腾讯会议',
            code: txt('tm-meeting-code'),
            duration: txt('tm-meeting-duration'),
            dateStr: txt('tm-meeting-start-date'),
            timeStr: txt('tm-meeting-start-time'),
            start,
        };
    }

    function toast(bgColor, icon, title, bodyHTML) {
        injectStyle();
        let box = document.getElementById('tm-box');
        if (!box) {
            box = document.createElement('div');
            box.id = 'tm-box';
            document.body.appendChild(box);
        }
        box.innerHTML = `
            <div class="tm-header" style="background:${bgColor}">
                <span class="tm-icon">${icon}</span>
                <span class="tm-title">${title}</span>
            </div>
            <div class="tm-body">${bodyHTML}</div>`;
    }

    function closeBarHTML() {
        return `
            <div class="tm-bar" id="tm-bar">
                <span>⏱ <span class="tm-sec" id="tm-sec">${CLOSE_SEC}</span> 秒后自动关闭</span>
                <button class="tm-cancel-btn" id="tm-cancel">取消</button>
            </div>`;
    }

    function doCancel() {
        if (cancelFlag) return;
        cancelFlag = true;
        clearInterval(closeTimer);
        const bar = document.getElementById('tm-bar');
        if (bar) bar.innerHTML = '<span class="tm-muted">已取消自动关闭</span>';
    }

    function startClose() {
        cancelFlag = false;
        let n = CLOSE_SEC;
        document.getElementById('tm-cancel')?.addEventListener('click', doCancel);
        document.addEventListener('keydown', e => { if (e.key === 'Escape') doCancel(); }, { once: true });
        closeTimer = setInterval(() => {
            if (cancelFlag) return clearInterval(closeTimer);
            document.getElementById('tm-sec').textContent = --n;
            if (n <= 0) { clearInterval(closeTimer); doClose(); }
        }, 1000);
    }

    function doClose() {
        window.close();
        setTimeout(() => { if (!document.hidden) history.back(); }, 300);
    }

    document.addEventListener('visibilitychange', () => {
        if (document.hidden && !cancelFlag) { clearInterval(closeTimer); doClose(); }
    });

    function getDiffSec(start) {
        if (!start) return null;
        return Math.floor((start.getTime() - Date.now()) / 1000);
    }

    function fmtDuration(ms) {
        const h = Math.floor(ms / 3600000);
        const m = Math.floor((ms % 3600000) / 60000);
        return h > 0 ? `${h}小时${m}分钟` : `${m}分钟`;
    }

    function codeHTML(code) {
        return code ? `<div class="tm-code">会议号 ${code}</div>` : '';
    }

    function doJoin() {
        const btns = document.querySelectorAll('[id="mpJoinBtnCtrl"]');
        const btn = btns[1] || btns[0];
        if (btn) { btn.click(); return '加入会议'; }
        return null;
    }

    function doCollect() {
        const el = document.getElementById('collect-meeting');
        if (el) { el.click(); return true; }
        return false;
    }

    function main() {
        const d = getData();
        const diffSec = getDiffSec(d.start);

        if (d.state === '已结束') {
            toast('#9e9e9e', '⚫', '会议已结束', `
                <div class="tm-subject">${d.subject}</div>
                <div class="tm-hint">${d.dateStr} ${d.timeStr}</div>
                ${closeBarHTML()}
            `);
            startClose();
            return;
        }

        if (d.state === '进行中' || d.state === '会议中' || diffSec === null || diffSec <= THRESHOLD) {
            const result = doJoin();
            toast(result ? '#0f9d58' : '#f57c00', result ? '🟢' : '⚠️', result ? '正在加入会议' : '加入失败', `
                <div class="tm-subject">${d.subject}</div>
                ${codeHTML(d.code)}
                <div class="tm-status ${result ? 'tm-green' : 'tm-muted'}">
                    ${result ? `✅ 已点击"${result}"` : '未找到加入按钮'}
                </div>
                ${closeBarHTML()}
            `);
            startClose();
            return;
        }

        const ok = doCollect();
        toast(ok ? '#f9a825' : '#f57c00', ok ? '📋' : '⚠️', ok ? '会议未开始' : '收藏失败', `
            <div class="tm-subject">${d.subject}</div>
            ${codeHTML(d.code)}
            <div class="tm-status">开始：${d.dateStr} ${d.timeStr}</div>
            ${ok ? `<div>时长：${d.duration}</div>` : ''}
            ${ok ? `<div class="tm-countdown tm-amber" id="tm-cd">${fmtDuration(diffSec * 1000)}</div>` : ''}
            <div class="tm-status ${ok ? 'tm-green' : 'tm-muted'}">
                ${ok ? '✅ 已添加到会议列表' : '未找到添加按钮'}
            </div>
            ${closeBarHTML()}
        `);

        if (ok) {
            const el = document.getElementById('tm-cd');
            const t = setInterval(() => {
                const left = getDiffSec(d.start);
                if (left <= 0) {
                    clearInterval(t);
                    el.textContent = '已到时间';
                    el.className = 'tm-countdown tm-green';
                    return;
                }
                el.textContent = fmtDuration(left * 1000);
            }, 1000);
        }

        startClose();
    }

    document.readyState === 'complete' ? main() : window.addEventListener('load', main);
})();