index.js

const HFS = 'C:\\Program Files\\Side Effects Software\\Houdini 18.0.597';
// this is necessary in order that the module can find the Houdini dll libraries from the place it expects to:
process.env.PATH = `${HFS}\\bin;${process.env.PATH}`;
process.env.HFS = HFS;

const hapi = require('bindings')('hapi.node');

const net = require('net');

const HOST = 'localhost';
const PORT = 8080;

const client = new net.Socket();

const path = require('path');
const fs = require('fs');
const directoryPath_WAITING = path.join(__dirname, 'client/data/forLoading/done'); //dump when done processing
const directoryPath_THREEJS = path.join(__dirname, 'client/data/forLoading/THREE'); //give
const directoryPath_HOUDINI = path.join(__dirname, 'client/data/forLoading/HOUDINI'); //get

const { spawn, exec, execFile } = require('child_process');
const { spawnSync, execSync, execFileSync } = require( 'child_process' );

let state = {
  files: {},
}
exports.state = state;

client.connect(PORT, HOST, function() {

  console.log('CONNECTED TO: ' + HOST +':'+ PORT);

  // GPT will create the kind of data used and sent by these calls in and out of node-hapi.cpp
  console.log('test');

  //TODO: make one import and one export after testing FBX
  //for now "make" an object/scene and save as .hip .obj .FBX
  //TODO: use pass-in for declaring what ext type

  //hapi.make_OBJ();
  hapi.load_hdanc();

  //hapi.import_FBX(); //TODO: commented out while working on JS side
  //hapi.export_FBX(); //TODO: commented out while working on JS side

  //console.log('testPoint');
  //hapi.testPoint(); //TODO: commented out while working on JS side
  // setTimeout(()=>{
  // 	console.log("chao")
  // }, 100000)

  // let regEx = /(\/*.obj)/;
  // try {
  //   fs.readdir(directoryPath, function (err, files) {
  //       if (err) {
  //         return console.log('Unable to scan directory: ' + err);
  //       }
  //       console.log(regEx);
  //       files.forEach(function (file) {
  //           let match = file.match(regEx);
  //           if ( match ) {
  //             console.log(`\nattempting to convert to json`, file);
  //             try {
  //               const cmd = 'node -r esm obj2three.js scenes/' + file;
  //               const convert = execSync(
  //                 cmd,
  //                 {
  //                   //cwd: 'node-hapi/',
  //                   stdio: ['pipe', 'pipe', 'pipe']
  //                 });
  //                 state.file = convert;
  //             } catch (error) {
  //               console.log(`error: `, error);
  //             }
  //           }
  //       });
  //   });
  // } catch( error ) {
  //   client.write( `file conversion error: ${error}` );
  // }

})

client.on('data', function(data) {

    console.log('on "DATA":', typeof data, data.byteLength, data.byteOffset, data)

    // let pkt = data.buffer
    // session.process(pkt)
    // console.log('NODE: after process data.buffer')

})

client.on('close', function() {
    //session.close()
    console.log('session.close | Connection closed')
})

client.on('error', function(err) {
    console.log("socket error", err)
    //session.close()
    client.disconnect()
    socket.close()
    // disconnect client & session.close() ?
})

console.log("ok")
//client.write(Buffer.from(session.handshake(1)))

console.log(exports.state);