@qiniu/miku-delivery-mp-ks/dist/utils/index.js

Kuaishou Mini Program SDK for Miku Delivery

/** Unix time, the number of seconds elapsed since January 1, 1970 UTC. */
export function unixTime() {
    return Math.round(Date.now() / 1000);
}
/** 简易的 query parse 实现，也可用于简单的 application/x-www-form-urlencoded 反序列化 */
export function parseQuery(querystring) {
    if (querystring[0] === '?')
        querystring = querystring.slice(1);
    const parsed = {};
    querystring.split('&').forEach(kv => {
        const [k, v] = kv.split('=');
        parsed[decodeURIComponent(k)] = v == null ? null : decodeURIComponent(v);
    });
    return parsed;
}
/** 简易的 query stringify 实现，也可用于简单的 application/x-www-form-urlencoded 序列化 */
export function stringifyQuery(params) {
    return Object.keys(params).map(k => [k, params[k]]).filter(([k, v]) => v !== undefined).map(([k, v]) => (v === null
        ? encodeURIComponent(k)
        : [k, v].map(encodeURIComponent).join('='))).join('&');
}
export function uuid(length = 16) {
    const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_';
    const charNum = chars.length;
    let text = '';
    for (let i = 0; i < length; i++) {
        text += chars[Math.floor(Math.random() * charNum)];
    }
    return text;
}
export function mapObj(obj, mapper) {
    const o = {};
    Object.keys(obj).forEach(k => {
        o[k] = mapper(obj[k]);
    });
    return o;
}
export function createDefered() {
    const defered = {
        resolve: undefined,
        reject: undefined,
        promise: undefined,
        status: 'pending',
        value: null
    };
    defered.promise = new Promise((res, rej) => {
        defered.resolve = res;
        defered.reject = rej;
    });
    defered.promise.then(v => {
        defered.value = v;
        defered.status = 'resolved';
    }, () => {
        defered.status = 'rejected';
    });
    return defered;
}
export function wait(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
export class TimeoutError extends Error {
    constructor() {
        super(...arguments);
        Object.defineProperty(this, "name", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: 'TimeoutError'
        });
    }
}
export function waitTimeout(timeout, operation) {
    return new Promise((_, reject) => {
        setTimeout(() => reject(new TimeoutError(operation + ' timeout')), timeout);
    });
}
/** 被取消的操作会抛出的异常 */
export class AbortError extends Error {
    constructor() {
        super(...arguments);
        Object.defineProperty(this, "name", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: 'AbortError'
        }); // 注意这里特意跟 DOMException name `AbortError` 保持一致，详见 https://developer.mozilla.org/en-US/docs/Web/API/DOMException#aborterror
    }
}
/** 将任意类型的异常转换为用于上报的 `err_msg` & `err_desc` */
export function getErrInfo(err) {
    if (err instanceof Error) {
        return { err_msg: err.name, err_desc: err.message };
    }
    return { err_msg: 'Unknown', err_desc: err + '' };
}
/** 将时间点相减，用于日志上报：1) 处理时间点缺失的逻辑 2) 单位 `ms` 转为上报需要的 `s` */
export function timeMinus(t1, t2) {
    if (t1 == null || t1 === -1 || t2 == null || t2 === -1)
        return -1;
    return (t1 - t2) / 1000;
}
/** 毫秒转换为秒 */
export function formatMillisecondToSecond(time) {
    return parseFloat((time / 1e3).toFixed(2));
}
/** hostname (`${host}:${port}`) -> host + port */
export function parseHost(hostname, defaultPort = 80) {
    const [host, portStr] = hostname.split(':');
    const port = portStr ? parseInt(portStr, 10) : defaultPort;
    return [host, port];
}
export function getExt(pathname) {
    const segs = pathname.split('/');
    const lastSeg = segs[segs.length - 1];
    const extIndex = lastSeg.lastIndexOf('.');
    return extIndex >= 0 ? lastSeg.slice(extIndex + 1) : '';
}
export function isM3u8Url(url) {
    const [withoutQuery] = url.split('?');
    return withoutQuery.endsWith('.m3u8');
}
export function isFlvUrl(url) {
    const [withoutQuery] = url.split('?');
    return withoutQuery.endsWith('.flv');
}