import store from 'store';

declare global {

interface Window {

__isDebug?: boolean;

__newFunc?: (funcStr: string) => (...args: any[]) => any;

}

}

// 根据 url 参数设置 debug 选项

const debugRegRes = /_?debug=(.*?)(&|$)/.exec(location.search);

if (debugRegRes && debugRegRes[1]) {

// eslint-disable-next-line no-underscore-dangle

window.__isDebug = true;

// @ts-ignore

store.storage.write('debug', debugRegRes[1] === 'true' ? '*' : debugRegRes[1]);

} else {

// eslint-disable-next-line no-underscore-dangle

window.__isDebug = false;

store.remove('debug');

}

// 重要，用于矫正画布执行 new Function 的 window 对象上下文

// eslint-disable-next-line no-underscore-dangle

window.__newFunc = (funContext: string): ((...args: any[]) => any) => {

// eslint-disable-next-line no-new-func

return new Function(funContext) as (...args: any[]) => any;

};

// 关闭浏览器前提醒，只有产生过交互才会生效

window.onbeforeunload = function (e: Event): string {

const ev = e || window.event;

// 本地调试不生效

if (location.href.indexOf('localhost') > 0) {

return '';

}

const msg = '您确定要离开此页面吗？';

ev.cancelBubble = true;

ev.returnValue = true;

if (e.stopPropagation) {

e.stopPropagation();

e.preventDefault();

}

return msg;

};