refactor: move startup logic to app-support, improve welcome screen UI

packages/app/src/app-support/index-startup.ts

@@ -0,0 +1,36 @@
+export const WELCOME_ROUTE = '/welcome'
+
+export function shouldWaitOnStartupRace(input: {
+  onlineServerId: string | null
+  hasTimedOut: boolean
+  isDesktopStartupRace: boolean
+  daemonCount: number
+  pathname: string
+}): boolean {
+  if (input.onlineServerId) {
+    return false
+  }
+  if (input.pathname === WELCOME_ROUTE) {
+    return false
+  }
+  if (input.hasTimedOut) {
+    return false
+  }
+  return input.isDesktopStartupRace || input.daemonCount > 0
+}
+
+export function shouldRedirectToWelcome(input: {
+  onlineServerId: string | null
+  hasTimedOut: boolean
+  pathname: string
+  isDesktopStartupRace: boolean
+  daemonCount: number
+}): boolean {
+  if (input.onlineServerId || !input.hasTimedOut) {
+    return false
+  }
+  if (input.pathname !== '/' && input.pathname !== '') {
+    return false
+  }
+  return input.isDesktopStartupRace || input.daemonCount > 0
+}