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// author: Gary A. Stafford
// site: https://programmaticponderings.com
// license: MIT License
'use strict';
/* CONSTANTS AND GLOBAL VARIABLES */
const {
dialogflow,
BasicCard,
SimpleResponse,
} = require('actions-on-google');
const app = dialogflow({debug: true});
app.middleware(conv => {
conv.hasScreen =
conv.surface.capabilities.has('actions.capability.SCREEN_OUTPUT');
conv.hasAudioPlayback =
conv.surface.capabilities.has('actions.capability.AUDIO_OUTPUT');
});
const SEARCH_API_HOSTNAME = process.env.SEARCH_API_HOSTNAME;
const SEARCH_API_PORT = process.env.SEARCH_API_PORT;
const SEARCH_API_ENDPOINT = process.env.SEARCH_API_ENDPOINT;
const rpn = require('request-promise-native');
const winston = require('winston');
const Logger = winston.Logger;
const Console = winston.transports.Console;
const {LoggingWinston} = require('@google-cloud/logging-winston');
const loggingWinston = new LoggingWinston();
const logger = new Logger({
level: 'info', // log at 'info' and above
transports: [
new Console(),
loggingWinston,
],
});
/* HELPER FUNCTIONS */
module.exports = class Helper {
/**
* Returns an collection of ElasticsearchPosts objects based on a topic
* @param postTopic topic to search for
* @param responseSize
* @returns {Promise<any>}
*/
getPostsByTopic(postTopic, responseSize = 1) {
return new Promise((resolve, reject) => {
const SEARCH_API_RESOURCE = `dismax-search?value=${postTopic}&start=0&size=${responseSize}&minScore=1`;
const SEARCH_API_URL = `http://${SEARCH_API_HOSTNAME}:${SEARCH_API_PORT}/${SEARCH_API_ENDPOINT}/${SEARCH_API_RESOURCE}`;
logger.info(`getPostsByTopic API URL: ${SEARCH_API_URL}`);
let options = {
uri: SEARCH_API_URL,
json: true
};
rpn(options)
.then(function (posts) {
posts = posts.ElasticsearchPosts;
logger.info(`getPostsByTopic Posts: ${JSON.stringify(posts)}`);
resolve(posts);
})
.catch(function (err) {
logger.error(`Error: ${err}`);
reject(err)
});
});
}
// truncated for brevity
};
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