FEATURE: Add "Recent Errors" tab and improved error modal (#2169)

src/ErrorHandling/DisplayError.ts

@@ -0,0 +1,62 @@
+import { Router } from "../ui/GameRoot";
+import { SimplePage } from "@enums";
+import { errorModalsAreSuppressed, ErrorRecord, ErrorState } from "./ErrorState";
+
+let currentId = 0;
+
+export const DisplayError = (
+  message: string,
+  errorType: string,
+  scriptName = "",
+  hostname: string = "",
+  pid: number = -1,
+) => {
+  const errorPageOpen = Router.page() === SimplePage.RecentErrors;
+  if (!errorPageOpen) {
+    ErrorState.UnreadErrors++;
+  }
+  const prior = findExistingErrorCopy(message, hostname);
+  if (prior) {
+    prior.occurrences++;
+    prior.time = new Date();
+    if (pid !== -1) {
+      prior.pid = pid;
+    }
+    prior.server = hostname;
+    prior.message = message;
+
+    updateActiveError(prior);
+  } else {
+    ErrorState.Errors.unshift({
+      id: currentId++,
+      server: hostname,
+      errorType,
+      scriptName,
+      message,
+      pid,
+      occurrences: 1,
+      time: new Date(),
+      unread: !errorPageOpen,
+    });
+    while (ErrorState.Errors.length > 100) {
+      ErrorState.Errors.pop();
+    }
+    updateActiveError(ErrorState.Errors[0]);
+  }
+};
+
+function findExistingErrorCopy(message: string, hostname: string): ErrorRecord | null {
+  const serverAgnosticMessage = message.replaceAll(hostname, "<server>");
+  return (
+    ErrorState.Errors.find(
+      (e) => e.message.replaceAll(e.server, "<server>") === serverAgnosticMessage || e.message === message,
+    ) ?? null
+  );
+}
+
+function updateActiveError(error: ErrorRecord): void {
+  if (!ErrorState.ActiveError && !errorModalsAreSuppressed()) {
+    ErrorState.ActiveError = error;
+    ErrorState.ErrorUpdate.emit(ErrorState.ActiveError);
+  }
+}