// ==UserScript==
// @name         随机写入100个不同字符到剪切板
// @namespace    https://viayoo.com/6a4j69
// @version      0.3
// @description  纯粹自用脚本，MIUI剪切板写入字符超过2w+后，底栏的无法显示剪切板内容，只有不断写入，超过限定剪切板数量，才能显示新的剪切板。
// @author       Via
// @match        *://*/*
// @grant        GM_setClipboard
// @grant        GM_registerMenuCommand
// @run-at       document-idle
// ==/UserScript==

(() => {
    'use strict';
    let chars = [], i = 0, bar = null;
    const POOL = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz23456789~!@#$%^&*_-+=<>?";

    const make = () => {
        const a = POOL.split('');
        for (let x = a.length - 1; x > 0; x--) {
            const j = Math.floor(Math.random() * (x + 1));
            [a[x], a[j]] = [a[j], a[x]];
        }
        return a.slice(0, 100);
    };

    const copy = t => {
        if (typeof GM_setClipboard === 'function') GM_setClipboard(t);
        else if (navigator.clipboard?.writeText) navigator.clipboard.writeText(t);
        else {
            const e = document.createElement('textarea');
            e.value = t; e.style.position = 'fixed'; e.style.opacity = '0';
            document.body.appendChild(e); e.select(); document.execCommand('copy'); e.remove();
        }
    };

    const createBar = () => {
        bar = document.createElement('div');
        bar.innerHTML = `
            <div style="font:600 32px/1 -apple-system,system-ui,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#1c2526;margin-bottom:12px;letter-spacing:-0.6px">
                0 / 100
            </div>
            <div style="height:10px;background:rgba(0,0,0,0.12);border-radius:7px;overflow:hidden;position:relative">
                <div id="p" style="width:0%;height:100%;background:linear-gradient(90deg,#007AFF,#00C2FF);border-radius:7px;transition:width .6s cubic-bezier(0.16,1,0.3,1);box-shadow:0 0 16px rgba(0,122,255,0.6)"></div>
            </div>`;

        Object.assign(bar.style, {
            position: 'fixed',
            top: '50%',
            left: '50%',
            transform: 'translate(-50%, -50%)',
            minWidth: '300px',
            maxWidth: '88vw',
            padding: '24px 32px',
            background: 'rgba(255, 255, 255, 0.72)',           // 经典 iOS 半透明白天毛玻璃
            backdropFilter: 'blur(20px) saturate(180%)',       // 高斯模糊 + 高饱和
            WebkitBackdropFilter: 'blur(20px) saturate(180%)',
            borderRadius: '26px',                              // 大圆角，和你参考的脚本一模一样
            border: '1px solid rgba(255, 255, 255, 0.4)',       // 微亮边框增加质感
            boxShadow: '0 12px 32px rgba(0,0,0,0.18), 0 4px 12px rgba(0,0,0,0.12)',
            zIndex: '2147483647',
            pointerEvents: 'none',
            textAlign: 'center',
            fontFamily: '-apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif',
            opacity: '0',
            transform: 'translate(-50%, -50%) scale(0.92)',
            transition: 'all .65s cubic-bezier(0.22,1,0.36,1)'
        });

        document.body.appendChild(bar);
        requestAnimationFrame(() => {
            bar.style.opacity = '1';
            bar.style.transform = 'translate(-50%, -50%) scale(1)';
        });
    };

    const progress = () => {
        if (!bar) createBar();
        bar.firstElementChild.textContent = i + ' / 100';
        bar.querySelector('#p').style.width = i + '%';

        if (i >= 100) {
            const p = bar.querySelector('#p');
            p.style.background = 'linear-gradient(90deg,#34C759,#32D74B)';
            p.style.boxShadow = '0 0 24px rgba(52,199,89,0.8)';
            setTimeout(() => {
                bar.style.transform = 'translate(-50%, -50%) scale(0.92)';
                bar.style.opacity = '0';
                setTimeout(() => bar?.remove(), 700);
            }, 900);
        }
    };

    const run = () => { copy(chars[i++]); progress(); };

    const start = mode => {
        if (i > 0) return alert('请刷新页面后再操作');
        chars = make(); i = 0;
        if (bar) bar.remove();
        bar = null;
        progress();

        if (mode === 'lightning') {
            while (i < 100) run();
        } else {
            const id = setInterval(() => {
                if (i >= 100) clearInterval(id);
                else run();
            }, 60);
        }
    };

    GM_registerMenuCommand('光速复制 100 个字符（瞬间完成）', () => start('lightning'));
    GM_registerMenuCommand('快速复制 100 个字符（约6秒）', () => start());
})();