prasi-bun/app/srv/ws/sync/code/parts/watcher.ts

72 lines
2.0 KiB
TypeScript

import { conns } from "../../entity/conn";
import { user } from "../../entity/user";
import { sendWS } from "../../sync-handler";
import { SyncType } from "../../type";
import { FSWatcher, statSync, watch } from "fs";
import { readdir } from "node:fs/promises";
import { code } from "../code";
import { join } from "path";
import { Subprocess } from "bun";
export class Watcher {
proc: undefined | Subprocess;
constructor(path: string, id_site: string) {
this.init(path, id_site);
}
async init(path: string, id_site: string) {
try {
const broadcastLoading = async () => {
const client_ids = user.active
.findAll({ site_id: id_site })
.map((e) => e.client_id);
const now = Date.now();
client_ids.forEach((client_id) => {
const ws = conns.get(client_id)?.ws;
if (ws)
sendWS(ws, {
type: SyncType.Event,
event: "code_changes",
data: { ts: now, mode: "frontend", status: "building" },
});
});
};
this.proc = Bun.spawn(
["bun", join(import.meta.dir, "init/watcher.ts"), path],
{
stdout: "inherit",
stderr: "inherit",
ipc(message, childProc) {
const fe = code.internal.frontend[id_site];
if (typeof fe !== "undefined" && !fe.rebuilding) {
fe.rebuilding = true;
clearTimeout(fe.timeout);
fe.timeout = setTimeout(async () => {
try {
broadcastLoading();
await fe.ctx.rebuild();
fe.rebuilding = false;
} catch (e: any) {
console.error(`Frontend failed rebuild (site: ${id_site})`);
console.error(e.message);
fe.rebuilding = false;
}
}, 500);
}
},
}
);
} catch (e) {
console.error(e);
}
}
async close() {
this.proc?.kill();
}
}