import ecstatic from 'ecstatic';

import { build } from 'esbuild';

import fs from 'fs';

import http from 'http';

import minimist from 'minimist';

import path from 'path';

import { localDevReglCodegenConfig as config } from '../../esbuild-config.js';

import constants from '../../tasks/util/constants.js';

import {

createMocksList,

getMockFiles,

readFiles,

saveMockListToFile,

saveReglTracesToFile

} from '../dashboard_utilities.mjs';

var args = minimist(process.argv.slice(2), {});

var PORT = args.port || 3000;

var reglTraceList = ['parcoords', 'scattergl', 'scatterpolargl', 'splom'];

// Create server

var _static = ecstatic({

root: constants.pathToRoot,

cache: 0,

gzip: true,

cors: true

});

var tracesReceived = [];

var server = http.createServer(function (req, res) {

if (req.method === 'POST' && req.url === '/api/submit-code') {

var body = '';

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

body += data;

});

req.on('end', function () {

var data = JSON.parse(body);

tracesReceived.push(data.trace);

handleCodegen(data);

res.statusCode = 200;

res.end();

});

} else if (req.method === 'GET' && req.url === '/api/codegen-done') {

console.log('Codegen complete');

console.log('Traces received:', tracesReceived);

res.statusCode = 200;

res.end();

setTimeout(process.exit, 1000);

} else {

_static(req, res);

}

});

// Build and bundle all the things!

await getMockFiles()

.then(readFiles)

.then(createMocksList)

.then(saveMockListToFile)

.then(saveReglTracesToFile.bind(null, reglTraceList));

// Start the server up!

server.listen(PORT);

// open up browser window

const serverUrl = `http://localhost:${PORT}/devtools/regl_codegen/index.html`;

console.log('\x1b[31mOpen the following link to launch a browser window and precompile the regl shaders.');

console.log('This can be processor and memory intensive.\x1b[0m\n');

console.log(` \x1b[1m\x1b[32m➜\x1b[0m \x1b[1mLocal:\x1b[0m \x1b[1m\x1b[36m${serverUrl}\x1b[0m\n`);

await build(config);

function handleCodegen(data) {

var trace = data.trace;

var generated = data.generated;

var pathToReglCodegenSrc = constants.pathToReglCodegenSrc;

var pathToReglPrecompiledSrc = path.join(constants.pathToSrc, 'traces', trace, 'regl_precompiled.js');

var header = ["'use strict';", ''].join('\n');

var imports = '';

var exports = ['', '/* eslint-disable quote-props */', 'module.exports = {', ''].join('\n');

var varId = 0;

Object.entries(generated).forEach(function (kv) {

var key = kv[0];

var value = kv[1];

var filePath = path.join(pathToReglCodegenSrc, key);

fs.writeFileSync(filePath, 'module.exports = ' + value);

imports += 'var v' + varId + " = require('../../" + path.join(constants.reglCodegenSubdir, key) + "');\n";

exports += " '" + key + "': v" + varId + ',\n';

varId++;

});

if (varId > 0) {

exports = exports.slice(0, -2) + '\n};\n';

} else {

exports = 'module.exports = {};\n';

}

var precompiled = header + imports + exports;

fs.writeFileSync(pathToReglPrecompiledSrc, precompiled);

}