/* QRCode.js - Local Fallback */
(function() {
    'use strict';
    
    // 简化的 QRCode 备用实现
    window.QRCode = function(element, options) {
        this.element = typeof element === 'string' ? document.getElementById(element) : element;
        this.options = options || {};
        
        if (this.element) {
            this.element.innerHTML = '<div style="width: 128px; height: 128px; border: 1px solid #ddd; display: flex; align-items: center; justify-content: center; background: #f9f9f9; font-size: 12px; text-align: center;">' +
                '二维码生成器<br/>暂时不可用</div>';
        }
        
        return this;
    };
    
    // 添加基本方法
    window.QRCode.prototype = {
        makeCode: function(text) {
            console.warn('QRCode 本地备用版本 - 功能受限');
            if (this.element) {
                this.element.innerHTML = '<div style="width: 128px; height: 128px; border: 1px solid #ddd; display: flex; align-items: center; justify-content: center; background: #f9f9f9; font-size: 10px; text-align: center; word-break: break-all; padding: 5px;">' +
                    text + '</div>';
            }
        },
        clear: function() {
            if (this.element) {
                this.element.innerHTML = '';
            }
        }
    };
})();