var express = require('express');
var bodyParser = require('body-parser');
var rp = require("request-promise");

var app = express();
app.use(bodyParser.json());

app.post('/building/', function (req, res) {
    'use strict';

    var myObject = null;

    var options = {
        uri: 'http://localhost:8080/site/',
        body: JSON.stringify(req.body),
        method: 'POST',
        headers: {
            'Content-Type': 'application/json'
        },
        json: true
    }
    // First External API Call
    rp(options).then((response) => {
        var promises = response.body.floor.map(material => rp({
            uri: "http://localhost:8080/material/" + i,
            json: true
        }).then(mat => rp({
            uri: "http://localhost:8080/value/" + mat.whatever,
            json: true
        })));
        // actual server reply here:
        Promise.all(promises).then(materials => res.sendJSON(materials));
    }).catch(error => {
        console.log('ERROR with user request.');
        return res.sendStatus(500); // Return back that an error occurred
    });
});