import { fileURLToPath } from "url";
import { existsSync } from "node:fs";
import path from "node:path";
import { acquirePidLock, PidLockError, releasePidLock, updatePidLock, } from "../src/server/pid-lock.js";
import { resolvePaseoHome } from "../src/server/paseo-home.js";
import { loadPersistedConfig } from "../src/server/persisted-config.js";
import { runSupervisor } from "./supervisor.js";
import { resolveSupervisorLogFile } from "./supervisor-log-config.js";
import { applySherpaLoaderEnv } from "../src/server/speech/providers/local/sherpa/sherpa-runtime-env.js";
process.title = "Paseo Supervisor";
function parseConfig(argv) {
    let devMode = false;
    const workerArgs = [];
    for (const arg of argv) {
        if (arg === "--dev") {
            devMode = true;
            continue;
        }
        workerArgs.push(arg);
    }
    return { devMode, workerArgs };
}
function resolveWorkerEntry() {
    const candidates = [
        fileURLToPath(new URL("../server/server/daemon-worker.js", import.meta.url)),
        fileURLToPath(new URL("../dist/server/server/daemon-worker.js", import.meta.url)),
        fileURLToPath(new URL("../src/server/daemon-worker.ts", import.meta.url)),
        fileURLToPath(new URL("../../src/server/daemon-worker.ts", import.meta.url)),
    ];
    for (const candidate of candidates) {
        if (existsSync(candidate)) {
            return candidate;
        }
    }
    return candidates[0];
}
function resolveDevWorkerEntry() {
    const candidate = fileURLToPath(new URL("../src/server/daemon-worker.ts", import.meta.url));
    if (!existsSync(candidate)) {
        throw new Error(`Dev worker entry not found: ${candidate}`);
    }
    return candidate;
}
function resolveWorkerExecArgv(workerEntry, devMode) {
    const execArgv = workerEntry.endsWith(".ts") ? ["--import", "tsx"] : [];
    if (!devMode) {
        return execArgv;
    }
    const devArgs = [
        "--heapsnapshot-near-heap-limit=3",
        "--max-old-space-size=3072",
        "--report-on-fatalerror",
        "--report-directory=/tmp/paseo-reports",
    ];
    const inspectArg = process.env.PASEO_NODE_INSPECT ?? "--inspect";
    if (inspectArg !== "0" && inspectArg !== "false" && inspectArg !== "off") {
        devArgs.push(inspectArg);
    }
    return [...devArgs, ...execArgv];
}
function resolvePackagedNodeEntrypointRunnerPath(currentScriptPath) {
    const packageMarker = `${path.sep}node_modules${path.sep}@kong-link${path.sep}server${path.sep}`;
    const markerIndex = currentScriptPath.lastIndexOf(packageMarker);
    if (markerIndex === -1) {
        return null;
    }
    const appRoot = currentScriptPath.slice(0, markerIndex);
    const runnerPath = path.join(appRoot, "dist", "daemon", "node-entrypoint-runner.js");
    return existsSync(runnerPath) ? runnerPath : null;
}
async function main() {
    const config = parseConfig(process.argv.slice(2));
    const workerEntry = config.devMode ? resolveDevWorkerEntry() : resolveWorkerEntry();
    const workerExecArgv = resolveWorkerExecArgv(workerEntry, config.devMode);
    const workerEnv = { ...process.env };
    const packagedNodeEntrypointRunner = process.env.ELECTRON_RUN_AS_NODE === "1"
        ? resolvePackagedNodeEntrypointRunnerPath(fileURLToPath(import.meta.url))
        : null;
    applySherpaLoaderEnv(workerEnv);
    const paseoHome = resolvePaseoHome(workerEnv);
    const persistedConfig = loadPersistedConfig(paseoHome);
    const supervisorLogFile = resolveSupervisorLogFile(paseoHome, persistedConfig, workerEnv);
    try {
        await acquirePidLock(paseoHome, null, {
            ownerPid: process.pid,
        });
    }
    catch (error) {
        if (error instanceof PidLockError) {
            process.stderr.write(`${error.message}\n`);
            process.exit(1);
            return;
        }
        throw error;
    }
    let lockReleased = false;
    const releaseLock = async () => {
        if (lockReleased) {
            return;
        }
        lockReleased = true;
        await releasePidLock(paseoHome, {
            ownerPid: process.pid,
        });
    };
    runSupervisor({
        name: "DaemonRunner",
        startupMessage: "Starting daemon worker (IPC restart and crash restart enabled)",
        resolveWorkerEntry: () => workerEntry,
        workerArgs: config.workerArgs,
        workerEnv,
        workerExecArgv,
        resolveWorkerSpawnSpec: packagedNodeEntrypointRunner
            ? (resolvedWorkerEntry) => ({
                command: process.execPath,
                args: [
                    packagedNodeEntrypointRunner,
                    "node-script",
                    resolvedWorkerEntry,
                    ...config.workerArgs,
                ],
                env: {
                    ...workerEnv,
                    ELECTRON_RUN_AS_NODE: "1",
                },
            })
            : undefined,
        restartOnCrash: true,
        logFile: supervisorLogFile,
        onWorkerReady: async ({ listen }) => {
            await updatePidLock(paseoHome, { listen }, { ownerPid: process.pid });
        },
        onSupervisorExit: releaseLock,
    });
}
void main().catch((error) => {
    const message = error instanceof Error ? (error.stack ?? error.message) : String(error);
    process.stderr.write(`${message}\n`);
    process.exit(1);
});
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