/* eslint-disable */
const { spawn } = require("child_process");
const chokidar = require("chokidar");
const kill = require("tree-kill");

const args = [...process.argv].splice(2);

let buildproc, runproc;
function run(changedFile) {
    if (changedFile) {
        console.log(`Change to ${changedFile} detected`);
    }

    if (buildproc) {
        kill(buildproc.pid);
        buildproc = undefined;
    }
    if (runproc) {
        kill(runproc.pid);
        runproc = undefined;
    }

    buildproc = spawn("npm", ["run", "build", ...args], { stdio: "inherit", shell: true });
    buildproc.on("exit", code => {
        buildproc = undefined;
        if (code === 0) {
            runproc = spawn("npm", ["run", "start", ...args], { stdio: "inherit", shell: true });
            runproc.on("exit", () => {
                runproc = undefined;
            });
        }
    });
}

run();
chokidar.watch("src").on("change", run);
chokidar.watch("static/fixed_responses").on("change", run);
chokidar.watch("static/webui").on("change", run);