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1× | 'use strict';
/**
* Greet users with a greeting that reflects the time of day
*
* ```xml
* <greet />
* <greet tz='America/New_York' lang='es' />
* ```
*
* Outputs based on the system language, or set attribute, default is english if none of these are found.
* Timezone is based on the users timezone on bots that implement getUserInfo, the set attribute, default is UTC if noen of these are found.
*
* **English (en)**
* * between 4 am and 12 pm say "Good morning"
* * between 12 pm and 5pm say "Good afternoon"
* * between 5 pm and 4am say "Good evening"
*
* **Spanish (es)**
* * between 4 am and 12 pm say "Buenos dias"
* * between 12 pm and 8pm say "Buenas tardes"
* * between 8 pm and 4am say "Buenas noches"
*
* @param {String} tz Which timezone to use for the time-based greeting. Defaults to GMT. To see available options see http://momentjs.com/timezone/
* @param {String} lang Which language to use. Defaults to system locale setting
* @module greet
*/
var Moment = require('moment-timezone');
var R = require('ramda');
var debug = require('debug')('botmaster:actions:greet');
var DEFAULT_TIMEZONE = 'Europe/London';
var GREETINGS = {
en: [{ start: 4, end: 12, greetings: ['Good morning'] }, { start: 12, end: 17, greetings: ['Good afternoon'] }, { start: 17, end: 4, greetings: ['Good evening'] }],
es: [{ start: 4, end: 12, greetings: ['Buenos dias'] }, { start: 12, end: 20, greetings: ['Buenas tardes'] }, { start: 20, end: 4, greetings: ['Buenas noches'] }]
};
var controller = function controller(params) {
return getTimezone(params).then(function (timezone) {
var hour = getHour(timezone);
var greetings = getGreetings(params);
var greeting = getGreetingFromHour(greetings, hour);
debug(timezone + ' - hour ' + hour + ' = ' + greeting);
return greeting;
});
};
var spec = {
controller: controller
};
var lensImplementsTimezone = R.lensPath(['bot', 'implements', 'userInfo', 'timezone']);
var getTimezone = function getTimezone(params) {
var userId = getUserId(params);
if (params.attributes.tz) return Promise.resolve(params.attributes.tz);else Iif (userId && R.view(lensImplementsTimezone, params)) return params.bot.getUserInfo(userId).then(function (response) {
return debug('got userinfo ' + response);
}).then(R.compose(R.defaultTo(DEFAULT_TIMEZONE), R.view(R.lensProp('timezone')))).catch(function (err) {
debug('Error getting user timezone from bot', err);
return Promise.resolve(DEFAULT_TIMEZONE);
});else return Promise.resolve(DEFAULT_TIMEZONE);
};
var getUserId = R.view(R.lensPath(['update', 'sender', 'id']));
var getHour = function getHour(timezone) {
return new Moment().tz(timezone).hour();
};
var getGreetings = function getGreetings(params) {
var lang = params.attributes.lang ? params.attributes.lang : process.env.LANG.split('_').shift();
return GREETINGS[lang] || GREETINGS['en'];
};
var getGreetingFromHour = function getGreetingFromHour(greetings, hour) {
return R.compose(randomGreeting, R.prop('greetings'), R.defaultTo({
greetings: ['Hi', 'Ciao']
}), findGreetings(greetings))(hour);
};
var findGreetings = function findGreetings(greetings) {
return function (hour) {
return R.find(R.allPass([gteStart(hour), ltEnd(hour)]), greetings);
};
};
var gteStart = function gteStart(hour) {
return function (greeting) {
Eif (greeting.end - greeting.start > 0) return greeting.start <= hour;else return greeting.start - 24 <= hour;
};
};
var ltEnd = function ltEnd(hour) {
return function (greeting) {
Eif (greeting.end - greeting.start > 0) return greeting.end > hour;else return greeting.end > hour - 24;
};
};
var randomGreeting = function randomGreeting(greetings) {
return greetings[Math.floor(Math.random() * greetings.length)];
};
module.exports = spec; |