REFACTOR: Mitigate cyclic dependency between Jsonable classes (#1792)

src/utils/ErrorHandler.ts

@@ -0,0 +1,44 @@
+import { basicErrorMessage } from "../Netscript/ErrorMessages";
+import { ScriptDeath } from "../Netscript/ScriptDeath";
+import type { WorkerScript } from "../Netscript/WorkerScript";
+import { dialogBoxCreate } from "../ui/React/DialogBox";
+
+/** Generate an error dialog when workerscript is known */
+export function handleUnknownError(e: unknown, ws: WorkerScript | null = null, initialText = "") {
+  if (e instanceof ScriptDeath) {
+    // No dialog for ScriptDeath
+    return;
+  }
+  if (ws && typeof e === "string") {
+    const headerText = basicErrorMessage(ws, "", "");
+    if (!e.includes(headerText)) e = basicErrorMessage(ws, e);
+  } else if (e instanceof SyntaxError) {
+    const msg = `${e.message} (sorry we can't be more helpful)`;
+    e = ws ? basicErrorMessage(ws, msg, "SYNTAX") : `SYNTAX ERROR:\n\n${msg}`;
+  } else if (e instanceof Error) {
+    // Ignore any cancellation errors from Monaco that get here
+    if (e.name === "Canceled" && e.message === "Canceled") return;
+    const msg = `${e.message}${e.stack ? `\nstack:\n${e.stack.toString()}` : ""}`;
+    e = ws ? basicErrorMessage(ws, msg) : `RUNTIME ERROR:\n\n${msg}`;
+  }
+  if (typeof e !== "string") {
+    console.error("Unexpected error:", e);
+    const msg = `Unexpected type of error thrown. This error was likely thrown manually within a script.
+        Error has been logged to the console.\n\nType of error: ${typeof e}\nValue of error: ${e}`;
+    e = ws ? basicErrorMessage(ws, msg, "UNKNOWN") : msg;
+  }
+  dialogBoxCreate(initialText + String(e));
+}
+
+/** Use this handler to handle the error when we call getSaveData function or getSaveInfo function */
+export function handleGetSaveDataInfoError(error: unknown, fromGetSaveInfo = false) {
+  console.error(error);
+  let errorMessage = `Cannot get save ${fromGetSaveInfo ? "info" : "data"}. Error: ${error}.`;
+  if (error instanceof RangeError) {
+    errorMessage += " This may be because the save data is too large.";
+  }
+  if (error instanceof Error && error.stack) {
+    errorMessage += `\nStack:\n${error.stack}`;
+  }
+  dialogBoxCreate(errorMessage);
+}