const express = require("express");
const res = require("express/lib/response");
const http = require("http");

const app = express();
const port = 3000;

//TODO load these values from setting or env

const irohaApiHost = "localhost";
const irohaApiPort = 5000;
const irohaDomain = "test";

app.post("/price", (req, res) => {
    //TODO implement price calculation depending on extent area
    res.send({
        price: 33
    });
});

app.get("/users/:userId/assets", (req, res) => {

    let output = '';

    let options = {
        hostname: irohaApiHost,
        port: irohaApiPort,
        path: '/accounts/' + req.params.userId + '@' + irohaDomain + '/assets/',
        method: 'GET',        
    }

    let irohaReq = http.request(options, irohaRes => {

        irohaRes.on("data", chunk => {
           output += chunk;           
        });

        irohaRes.on('end', () => {            
            res.send(JSON.parse(output));
        })
    });

    irohaReq.on("error", error => {
        console.error(error);
        res.send(error);
    });

    irohaReq.end();
});

app.get("/users/:userId/assets/:assetId", (req, res) => {
    //TODO implement...
    res.send({
        assetId: req.params.assetId,
        balance: 150
        });
});

app.post("/buy", (req, res) => {
    //TODO implement...
    res.status(201);
});

app.listen(port, () => {
    console.log(`Listening at http://localhost:${port}`)
  })