fix: check command uses process.json

Author: fadeev

src/commands/check.ts

@@ -1,28 +1,57 @@
 import ansis from "ansis";
 import { Command } from "commander";
 import fs from "fs";
+import path from "path";
 
+import { LOCALNET_DIR } from "../constants";
 import { sleep } from "../utils";
 
-const LOCALNET_JSON_FILE = "./localnet.json";
-
 const localnetCheck = async (options: { delay: number }) => {
   await sleep(options.delay * 1000);
 
-  if (!fs.existsSync(LOCALNET_JSON_FILE)) {
-    console.log(ansis.red("Localnet is not running (JSON file missing)."));
+  if (!fs.existsSync(LOCALNET_DIR)) {
+    console.log(ansis.red("Localnet is not running (directory missing)."));
+    process.exit(1);
+  }
+
+  const processFile = path.join(LOCALNET_DIR, "process.json");
+  if (!fs.existsSync(processFile)) {
+    console.log(ansis.red("Localnet is not running (process.json missing)."));
+    process.exit(1);
+  }
+
+  let jsonData: unknown;
+  try {
+    jsonData = JSON.parse(fs.readFileSync(processFile, "utf-8"));
+  } catch (error) {
+    console.log(ansis.red("Failed to parse process.json."));
+    process.exit(1);
+  }
+
+  const processes = (
+    jsonData as { processes?: { command: string; pid: number }[] }
+  )?.processes;
+  if (!Array.isArray(processes)) {
+    console.log(
+      ansis.red("Invalid process.json format (missing processes array).")
+    );
+    process.exit(1);
+  }
+
+  const pid = processes.find((p) => p?.command === "anvil")?.pid;
+  if (!pid) {
+    console.log(ansis.red("Anvil process not found in process.json."));
     process.exit(1);
   }
 
-  const jsonData = JSON.parse(fs.readFileSync(LOCALNET_JSON_FILE, "utf-8"));
-  const pid = jsonData.pid;
+  const pidNum = Number(pid);
 
   try {
-    process.kill(Number(pid), 0);
-    console.log(ansis.green(`Localnet is running (PID: ${pid}).`));
+    process.kill(pidNum, 0);
+    console.log(ansis.green(`Localnet is running (anvil PID: ${pidNum}).`));
     process.exit(0);
   } catch (err) {
-    console.log(ansis.yellow(`Localnet process (PID: ${pid}) is not running.`));
+    console.log(ansis.yellow(`Anvil process (PID: ${pidNum}) is not running.`));
     process.exit(1);
   }
 };