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import { argsert } from './argsert.js';import { isPromise } from './utils/is-promise.js';export class GlobalMiddleware {    constructor(yargs) {        this.globalMiddleware = [];        this.frozens = [];        this.yargs = yargs;    }    addMiddleware(callback, applyBeforeValidation, global = true, mutates = false) {        argsert('<array|function> [boolean] [boolean] [boolean]', [callback, applyBeforeValidation, global], arguments.length);        if (Array.isArray(callback)) {            for (let i = 0; i < callback.length; i++) {                if (typeof callback[i] !== 'function') {                    throw Error('middleware must be a function');                }                const m = callback[i];                m.applyBeforeValidation = applyBeforeValidation;                m.global = global;            }            Array.prototype.push.apply(this.globalMiddleware, callback);        }        else if (typeof callback === 'function') {            const m = callback;            m.applyBeforeValidation = applyBeforeValidation;            m.global = global;            m.mutates = mutates;            this.globalMiddleware.push(callback);        }        return this.yargs;    }    addCoerceMiddleware(callback, option) {        const aliases = this.yargs.getAliases();        this.globalMiddleware = this.globalMiddleware.filter(m => {            const toCheck = [...(aliases[option] || []), option];            if (!m.option)                return true;            else                return !toCheck.includes(m.option);        });        callback.option = option;        return this.addMiddleware(callback, true, true, true);    }    getMiddleware() {        return this.globalMiddleware;    }    freeze() {        this.frozens.push([...this.globalMiddleware]);    }    unfreeze() {        const frozen = this.frozens.pop();        if (frozen !== undefined)            this.globalMiddleware = frozen;    }    reset() {        this.globalMiddleware = this.globalMiddleware.filter(m => m.global);    }}export function commandMiddlewareFactory(commandMiddleware) {    if (!commandMiddleware)        return [];    return commandMiddleware.map(middleware => {        middleware.applyBeforeValidation = false;        return middleware;    });}export function applyMiddleware(argv, yargs, middlewares, beforeValidation) {    return middlewares.reduce((acc, middleware) => {        if (middleware.applyBeforeValidation !== beforeValidation) {            return acc;        }        if (middleware.mutates) {            if (middleware.applied)                return acc;            middleware.applied = true;        }        if (isPromise(acc)) {            return acc                .then(initialObj => Promise.all([initialObj, middleware(initialObj, yargs)]))                .then(([initialObj, middlewareObj]) => Object.assign(initialObj, middlewareObj));        }        else {            const result = middleware(acc, yargs);            return isPromise(result)                ? result.then(middlewareObj => Object.assign(acc, middlewareObj))                : Object.assign(acc, result);        }    }, argv);}