fix(laboratory): Preflight Script environment variables no parse storage read (#6450)

cypress/e2e/laboratory-preflight-script.cy.ts

@@ -1,6 +1,7 @@
 import { dedent } from '../support/testkit';
 
 const selectors = {
+  buttonPreflightScript: '[aria-label*="Preflight Script"]',
   buttonModalCy: 'preflight-script-modal-button',
   buttonToggleCy: 'toggle-preflight-script',
   buttonHeaders: '[data-name="headers"]',
@@ -16,13 +17,17 @@ const selectors = {
   },
 };
 
+const data: { slug: string } = {
+  slug: '',
+};
+
 beforeEach(() => {
   cy.clearLocalStorage().then(async () => {
     cy.task('seedTarget').then(({ slug, refreshToken }: any) => {
       cy.setCookie('sRefreshToken', refreshToken);
-
+      data.slug = slug;
       cy.visit(`/${slug}/laboratory`);
-      cy.get('[aria-label*="Preflight Script"]').click();
+      cy.get(selectors.buttonPreflightScript).click();
     });
   });
 });
@@ -51,6 +56,12 @@ function setEditorScript(script: string) {
 }
 
 describe('Laboratory > Preflight Script', () => {
+  // https://github.com/graphql-hive/console/pull/6450
+  it('regression: loads even if local storage is set to {}', () => {
+    window.localStorage.setItem('hive:laboratory:environment', '{}');
+    cy.visit(`/${data.slug}/laboratory`);
+    cy.get(selectors.buttonPreflightScript).click();
+  });
   it('mini script editor is read only', () => {
     cy.dataCy('toggle-preflight-script').click();
     // Wait loading disappears

packages/web/app/src/components/target/explorer/provider.tsx

@@ -10,7 +10,7 @@ import {
 import { startOfDay } from 'date-fns';
 import { resolveRange, type Period } from '@/lib/date-math';
 import { subDays } from '@/lib/date-time';
-import { useLocalStorage } from '@/lib/hooks';
+import { useLocalStorageJson } from '@/lib/hooks';
 import { UTCDate } from '@date-fns/utc';
 
 type SchemaExplorerContextType = {
@@ -54,11 +54,11 @@ export function SchemaExplorerProvider({ children }: { children: ReactNode }): R
     [dataRetentionInDays],
   );
 
-  const [isArgumentListCollapsed, setArgumentListCollapsed] = useLocalStorage(
+  const [isArgumentListCollapsed, setArgumentListCollapsed] = useLocalStorageJson(
     'hive:schema-explorer:collapsed',
     true,
   );
-  const [period, setPeriod] = useLocalStorage<Period>(
+  const [period, setPeriod] = useLocalStorageJson<Period>(
     'hive:schema-explorer:period-1',
     defaultPeriod,
   );

packages/web/app/src/components/ui/changelog/changelog.tsx

@@ -2,7 +2,7 @@ import { ReactElement, useCallback, useEffect } from 'react';
 import { format } from 'date-fns/format';
 import { Button } from '@/components/ui/button';
 import { Popover, PopoverArrow, PopoverContent, PopoverTrigger } from '@/components/ui/popover';
-import { useLocalStorage, useToggle } from '@/lib/hooks';
+import { useLocalStorageJson, useToggle } from '@/lib/hooks';
 import { cn } from '@/lib/utils';
 
 export type Changelog = {
@@ -19,8 +19,8 @@ export function Changelog(props: { changes: Changelog[] }): ReactElement {
 
 function ChangelogPopover(props: { changes: Changelog[] }) {
   const [isOpen, toggle] = useToggle();
-  const [displayDot, setDisplayDot] = useLocalStorage<boolean>('hive:changelog:dot', false);
-  const [readChanges, setReadChanges] = useLocalStorage<string[]>('hive:changelog:read', []);
+  const [displayDot, setDisplayDot] = useLocalStorageJson<boolean>('hive:changelog:dot', false);
+  const [readChanges, setReadChanges] = useLocalStorageJson<string[]>('hive:changelog:read', []);
   const hasNewChanges = props.changes.some(change => !readChanges.includes(change.href));
 
   useEffect(() => {

packages/web/app/src/lib/hooks/index.ts

@@ -3,6 +3,7 @@ export { toDecimal, useDecimal } from './use-decimal';
 export { formatDuration, useFormattedDuration } from './use-formatted-duration';
 export { formatNumber, useFormattedNumber } from './use-formatted-number';
 export { formatThroughput, useFormattedThroughput } from './use-formatted-throughput';
+export { useLocalStorageJson } from './use-local-storage-json';
 export { useLocalStorage } from './use-local-storage';
 export { useNotifications } from './use-notifications';
 export { usePrettify } from './use-prettify';

packages/web/app/src/lib/hooks/use-local-storage-json.ts

@@ -0,0 +1,23 @@
+import { useCallback, useState } from 'react';
+
+export function useLocalStorageJson<T>(key: string, defaultValue: T) {
+  const [value, setValue] = useState<T>(() => {
+    const json = localStorage.getItem(key);
+    try {
+      const result = json ? JSON.parse(json) : defaultValue;
+      return result;
+    } catch (_) {
+      return defaultValue;
+    }
+  });
+
+  const set = useCallback(
+    (value: T) => {
+      localStorage.setItem(key, JSON.stringify(value));
+      setValue(value);
+    },
+    [setValue],
+  );
+
+  return [value, set] as const;
+}

packages/web/app/src/lib/hooks/use-local-storage.ts

@@ -1,18 +1,14 @@
 import { useCallback, useState } from 'react';
 
-export function useLocalStorage<T>(key: string, defaultValue: T) {
-  const [value, setValue] = useState<T>(() => {
-    const json = localStorage.getItem(key);
-    try {
-      return json ? JSON.parse(json) : defaultValue;
-    } catch (_) {
-      return defaultValue;
-    }
+export function useLocalStorage(key: string, defaultValue: string) {
+  const [value, setValue] = useState<string>(() => {
+    const value = localStorage.getItem(key);
+    return value ?? defaultValue;
   });
 
   const set = useCallback(
-    (value: T) => {
-      localStorage.setItem(key, JSON.stringify(value));
+    (value: string) => {
+      localStorage.setItem(key, value);
       setValue(value);
     },
     [setValue],

packages/web/app/src/lib/preflight-sandbox/graphiql-plugin.tsx

@@ -26,7 +26,7 @@ import { Subtitle } from '@/components/ui/page';
 import { usePromptManager } from '@/components/ui/prompt';
 import { useToast } from '@/components/ui/use-toast';
 import { FragmentType, graphql, useFragment } from '@/gql';
-import { useLocalStorage, useToggle } from '@/lib/hooks';
+import { useLocalStorage, useLocalStorageJson, useToggle } from '@/lib/hooks';
 import { GraphiQLPlugin } from '@graphiql/react';
 import { Editor as MonacoEditor, OnMount, type Monaco } from '@monaco-editor/react';
 import { Cross2Icon, InfoCircledIcon, Pencil1Icon, TriangleRightIcon } from '@radix-ui/react-icons';
@@ -153,7 +153,7 @@ export function usePreflightScript(args: {
   const prompt = usePromptManager();
 
   const target = useFragment(PreflightScript_TargetFragment, args.target);
-  const [isPreflightScriptEnabled, setIsPreflightScriptEnabled] = useLocalStorage(
+  const [isPreflightScriptEnabled, setIsPreflightScriptEnabled] = useLocalStorageJson(
     'hive:laboratory:isPreflightScriptEnabled',
     false,
   );
@@ -178,6 +178,17 @@ export function usePreflightScript(args: {
     const resultEnvironmentVariablesDecoded: PreflightScriptResultData['environmentVariables'] =
       Kit.tryOr(
         () => JSON.parse(latestEnvironmentVariablesRef.current),
+        // todo: find a better solution than blowing away the user's
+        // invalid localStorage state.
+        //
+        // For example if the user has:
+        //
+        // { "foo": "bar }
+        //
+        // Then when they "Run Script" it will be replaced with:
+        //
+        // {}
+        //
         () => ({}),
       );
     const result: PreflightScriptResultData = {
@@ -280,6 +291,7 @@ export function usePreflightScript(args: {
 
           // Cause the new state of environment variables to be
           // written back to local storage.
+
           const mergedEnvironmentVariablesEncoded = JSON.stringify(
             result.environmentVariables,
             null,