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statistics.js
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statistics.js
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const debug = require('debug')('virtual-assistant:feature:statistics'),
AssistantFeature = require('../assistant-feature'),
StateMachine = require('javascript-state-machine'),
Features = require('../../helpers/features-service'),
Database = require('../../helpers/database-service'),
chrono = require('chrono-node'),
_ = require('lodash'),
moment = require('moment');
class Statistics extends AssistantFeature {
static getTriggerKeywords() {
return [
'stats', 'statistic', 'statistique'
];
}
static getDescription() {
return "Vous permettre de consulter mes statistiques d'utilisation";
}
static getTTL() {
return 1 /* min */ * 60;
}
constructor(interfac, context) {
super(interfac, context);
StateMachine.create({
target: Statistics.prototype,
error: function(eventName, from, to, args, errorCode, errorMessage) {
debug('Uncatched error', 'event ' + eventName + ' was naughty :- ' + errorMessage)
debug(args)
},
initial: { state: 'Help', event: 'startup', defer: true }, // defer is important since the startup event is launched after the feature is stored in cache
terminal: 'End',
events: [
{ name: 'startup', from: 'none', to: 'Help' },
{ name: 'help', from: '*', to: 'Help' },
{ name: 'wait', from: '*', to: 'Wait' },
{ name: 'text', from: 'Wait', to: 'Text' },
{ name: 'end', from: '*', to: 'End' },
]
});
}
handle(message, context) {
if(this.current === 'none') {
this.startup();
}
else {
if(message.match(/^(?:fin|end|exit|stop|quit|quitter|bye)$/i) && this.canTriggerEvent('end')) {
this.end(context.userId);
}
else if(this.canTriggerEvent('text')) {
this.text(message, context.userId);
}
}
}
_getFeaturesPatterns() {
let features = Features.getInstance().list.map((feature) => {
let resultStrings = feature.getTriggerKeywords().map((keyword) => {
let s;
if(keyword instanceof RegExp) {
s = keyword.source;
}
else if(keyword instanceof String || typeof(keyword) === 'string') {
s = '\\b' + keyword + '\\b';
}
return s;
});
resultStrings.push(feature.name);
let ro = {}
ro[feature.name] = `(${resultStrings.join('|')})`;
return ro;
});
let resultObject = _.assign({}, ...features);
return resultObject;
}
/*********** STATES ***************/
onHelp(event, from, to) {
var toSend = [
'Consultation des statistiques, dites "fin" pour quitter.',
'Quelles statistiques voulez-vous consulter ?'
];
this.send(toSend);
this.wait();
}
onWait(event, from, to) {
// Do nothing
}
onText(event, from, to, text) {
this.send('Calcul des statistiques en cours ...');
let featuresToSearch = [],
allFeatures = [];
_.map(this._getFeaturesPatterns(), (pattern, featureName) => {
allFeatures.push(featureName);
if(featureName === 'Statistics') {
// Ignore the stats feature, because almost the sentences will contains the stats keyword
return;
}
let m = text.match(new RegExp(pattern, 'gi'));
if(m) {
featuresToSearch.push(featureName);
}
});
if(featuresToSearch.length === 0) {
featuresToSearch = allFeatures;
}
let toSend = [];
var chronoResults = chrono.parse(text),
filterDateStart, filterDateEnd;
console.log(chronoResults);
if(chronoResults.length > 0) {
toSend.push('Voici les statistiques pour les dates suivantes :');
let dateSentence = '';
if(chronoResults[0].start) {
filterDateStart = moment(chronoResults[0].start.date()).locale('fr');
dateSentence += 'du ' + filterDateStart.format('LLLL');
}
if(chronoResults[0].end) {
filterDateEnd = moment(chronoResults[0].end.date()).locale('fr');
dateSentence += ' au ' + filterDateEnd.format('LLLL');
} else {
dateSentence += " à aujourd'hui";
}
toSend.push(dateSentence);
} else {
toSend.push("Voici l'ensemble des statistiques :");
}
let futureStats = [];
featuresToSearch.forEach((name) => {
let st = Database.collection('statistics').findAll({eventName: 'feature_launch', 'event.feature': name })
.then((data) => {
data = _.filter(data, (e) => {
let d = moment(e.date);
if(filterDateStart && filterDateEnd) {
return d.isBetween(filterDateStart, filterDateEnd);
} else if(filterDateStart) {
return d.isAfter(filterDateStart);
} else if(filterDateEnd) {
return d.isBefore(filterDateEnd);
} else {
return true;
}
});
return {name: name, data: data};
//let byUser = _.countBy(data, 'event.userId');
//this.send(` • ${name}: solicité ${data.length} fois par ${_.keys(byUser).length} utilisateurs différents`);
});
futureStats.push(st);
});
Promise.all(futureStats)
.then((dataArray) => {
dataArray = _(dataArray)
.sortBy([(o) => {
return o.data.length;
}])
.reverse()
.value();
dataArray.forEach((data) => {
let byUser = _.countBy(data.data, 'event.userId');
toSend.push(` • ${data.name}: solicité ${data.data.length} fois par ${_.keys(byUser).length} utilisateurs différents`);
});
this.send(toSend);
});
var results = chrono.parse(text);
debug(results);
if(results.length > 0) {
if(results[0].start) {
debug(results[0].start.date());
}
if(results[0].end) {
debug(results[0].end.date());
}
}
this.wait();
}
onEnd(event, from, to) {
this.send('Fin de la consultation des statistiques');
this.clearCache();
}
}
module.exports = Statistics;