letsnet-normapi/queue.js

var Ajv = require('ajv')
var ajv = new Ajv({allErrors: true})
var requestQueue = require('./requestQueue')

var Queue = function(object) {
    this.counter = 1
    this.masterFunction = null
    if(object[0] instanceof Function) {
        this.queue = Object.entries(object)
        this.sharedObject = {}
    } else {
        this.queue = Object.entries(object)
        this.sharedObject = this.queue.shift()[1] || {}
    }
    this.queueLength = this.queue.length
}

Queue.prototype.next = function() {
    if(this.queueLength == this.counter) {
        var callback = this.queue.shift()[1]
        if(this.sharedObject.requestQueue) {
            let aQ = new requestQueue()
            aQ.communicate(this.sharedObject.requestQueue).then(responses => {
                this.sharedObject.responses = responses
                delete this.sharedObject.requestQueue
                this.masterFunction(this.sharedObject)
                .then(function(response) {
                    /*IFLOG*/if(process.env.QUEUE_THEN_RESPONSE == 'true') console.developer.log(response)
                    callback(false, {func: response.func || 'anonymus', lCode: response.lCode || '-S', msg: response.msg || 'Sikeres lefutás!', type: response.type || 'success', document: response.document || null})
                })
                .catch(function(response) {
                    if(typeof response != object) 
                        callback(true, {func: 'queue-response-string', lCode: '-E', msg: response, type: 'unknown-error'})
                    else {
                        /*IFLOG*/if(process.env.QUEUE_CATCH_RESPONSE == 'true') console.developer.log(response)
                        callback(true, {func: response.func || 'anonymus', lCode: response.lCode || '-E', msg: response.msg || 'Sikertelen lefutás!', type: response.type || 'error'})
                    }
                })       
            }).catch(err => {
                console.log(err)
                callback(true, {func: '@apiQueue->communicate', lCode: '-E1', msg: 'Sikertelen lefutás!', type: 'request-error'})
            })
        } else {
            this.masterFunction(this.sharedObject)
                .then(function(response) {
                    /*IFLOG*/if(process.env.QUEUE_THEN_RESPONSE == 'true') console.developer.log(response)
                    callback(false, {func: response.func || 'anonymus', lCode: response.lCode || '-S', msg: response.msg || 'Sikeres lefutás!', type: response.type || 'success', document: response.document || null})
                })
                .catch(function(response) {
                    /*IFLOG*/if(process.env.QUEUE_CATCH_RESPONSE == 'true') console.developer.log(response)
                    callback(true, {func: response.func || 'anonymus', lCode: response.lCode || '-E', msg: response.msg || 'Sikertelen lefutás!', type: response.type || 'error'})
                })
        }
    }
    else {
        ++this.counter
        return this.queue.shift()[1](this.sharedObject, this)
    }
}

Queue.prototype.stop = function(object) {
    var callback = this.queue.pop()[1]
    this.queue = null
    /*IFLOG*/if(process.env.QUEUE_STOP_LOG == 'true') console.developer.log(object)
    callback(true, {func: object.func || 'anonymus', lCode: object.lCode || '-E2', msg: object.msg || 'Sikertelen lefutás!', type: object.type || 'queue-error'})
}

Queue.prototype.setMasterFunction = function(schema, masterFunction) {
    if(schema === undefined || schema == null) this.masterFunction = masterFunction
    else this.masterFunction = function(object) {
        return new Promise(function(resolve, reject) {
            var valid = ajv.validate(schema, object)
            /*IFLOG*/if(process.env.AJV_ERROR_LOG == 'true') console.developer.log(ajv.errors)
            if(valid) {
                masterFunction(object).then(function(response) {
                    resolve(response)
                }).catch(function(response) {
                    reject(response)
                })
            }
            else reject({func: '@dataChecker', lCode: '-DC', msg: 'Hibás adatokat adott meg!', type: 'data-error'})
        })
    }
}

module.exports = Queue