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Update to next.js and typescript#152

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dlebech merged 18 commits intomainfrom
vibe-upgrade
Feb 14, 2026
Merged

Update to next.js and typescript#152
dlebech merged 18 commits intomainfrom
vibe-upgrade

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@dlebech dlebech commented Jun 9, 2025

This pull request migrates the project from Create React App (CRA) with Netlify Lambda functions to a Next.js-based architecture, updates dependencies to the latest versions (including Node.js 24 and React 19), and modernizes the development, build, and testing workflows. It also adds new configuration files for Next.js, ESLint, Jest, and Tailwind CSS, and rewrites the test suites to use Next.js API routes. Several obsolete files and configurations are removed as part of this migration.

Migration to Next.js and Modernization

  • Migrated the application from CRA and Netlify Lambda to Next.js, updating the main build output to .next, adding a minimal next.config.ts, and configuring Netlify to use the official Next.js plugin. Removed references to Netlify Lambda functions and deleted the old public/index.html. [1] [2] [3] [4]
  • Updated the Node.js version requirement to 24 and removed the .nvmrc file. Updated the GitHub Actions workflow to use Node.js 24.x, switched the default branch from master to main, and modernized the CI steps. [1] [2] [3] [4]

Dependency and Tooling Upgrades

  • Upgraded all major dependencies to their latest versions, including React 19, Redux Toolkit, Next.js, and related libraries. Updated development dependencies for testing (Jest, Testing Library), linting (ESLint, eslint-config-next), and styling (Tailwind CSS).
  • Added new configuration files: eslint.config.mjs for ESLint, jest.config.ts and jest.setup.ts for Jest, and postcss.config.mjs for Tailwind CSS/PostCSS. [1] [2] [3] [4]

Testing and API Route Refactoring

  • Rewrote test suites to target Next.js API routes instead of Lambda handlers, using NextRequest and updated mocks for Next.js server components. Added a new test file for the currencies API and migrated/renamed the currency rates test. [1] [2] [3] [4] [5] [6]
  • Updated Jest setup to mock Next.js navigation, server components, and polyfill features needed for testing with jsdom.

Cleanup and Configuration Removal

  • Removed obsolete configuration and coverage files that are no longer relevant for the new stack, such as .codecov.yml.
  • Updated manifest.json to use the new start URL.

dlebech and others added 15 commits June 9, 2025 21:49
This commit addresses several issues in the React/React Router to Next.js
migration that were causing test failures and type errors:

Actions fixes:
- Fix restoreStateFromFile to use 'newState' property (was 'state')
- Fix createTestData to be a simple action creator (was incorrectly a thunk)
- Fix groupTransactions to use 'transactionIds' property (was 'rowIds')
- Add missing action creators: deleteCategoryStart, deleteCategoryEnd,
  categorizeRowEnd, startFetchCurrencies, endFetchCurrencies,
  startFetchCurrencyRates, endFetchCurrencyRates, setCurrencies,
  setCurrencyRates

Component fixes:
- Fix Menu.tsx useEffect missing dependency array
- Fix SearchField.tsx unused imports (useMemo, useCallback, debounce)
- Fix Transactions.tsx unnecessary dispatch dependency warning

Type fixes:
- Update filterCategories to use Set<string> in EditState and component props
- Update TransactionTable to properly handle Set-based filter categories

Test infrastructure:
- Update jest.setup.ts to mock next/navigation (App Router) instead of
  next/router (Pages Router)
- Add mock for next/server (NextRequest, NextResponse) for API route tests
- Add version: 1 to transaction tests to skip migration side effects

CI/CD:
- Update GitHub Actions to use Node.js 18.x, 20.x, 22.x (was 14.x, 16.x, 18.x)
- Update actions/checkout and actions/setup-node to v4

Co-authored-by: Claude <noreply@anthropic.com>
- Fix pagination last page button label ("First Page" → "Last Page")
- Fix category dropdown hover jump-back by memoizing options/value in CategorySelect
- Fix non-serializable Redux error when filtering by category (convert Set to Array)
- Fix date picker error caused by argument mismatch with Dates component
  (handler accepted 2 args but Dates passes 3), and serialize Moment objects
- Fix Exit Demo button by adding EXIT_TEST_MODE action that resets all reducers
- Update TransactionTable handleDatesChange type to match Dates component signature

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…stale validation

- Fix XLSX import by using named exports instead of non-existent default export
- Add drag-and-drop file upload zone with styled UI
- Style "Add some" link as a button in NoData component
- Add 2-digit year date format options (MM-DD-YY, DD-MM-YY) with closest-century expansion
- Remove 2-digit year from auto-guess to require explicit format selection
- Fix stale closure bug where validation ran with pre-dispatch state by
  moving to useEffect-based validation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…ckbox state

- Render Modal via createPortal to document.body to fix stacking issues
- Add missing data-tooltip-id attrs on CategoryGuessConfirm icons
- Fix SearchField infinite re-render loop using ref for callback
- Remove isSelectedRowsUpdate hack from TransactionTable
- Fix uncontrolled checkbox warning in Charts (nullish coalescing)
- Replace Bootstrap class names with Tailwind in TransactionRow
- Update local Claude settings and next-env.d.ts path

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…istor hook

RestoreData and Menu now get persistor from context via usePersistor() instead
of receiving it as a prop, fixing the "can't access property pause, persistor
is undefined" error when restoring data from the home page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Delete 8 test files that depend on removed packages (redux-modal, enzyme,
react-router-dom), add setImmediate polyfill for yauzl in jest setup, and
add missing dateFormat field to transaction import test.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…act hooks

Replace ~200 instances of `any` with proper TypeScript types across 38 files,
fix unescaped JSX entities, replace Math.random() with useId(), address
React hooks lint rules, and fix prefer-const/unused-vars warnings.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Move currency rate fetching into useEffect to avoid dispatching during render
- Add optional chaining for safer category/account lookups in CSV export
- Clear errors state on import cancel
- Fix new account auto-edit to only trigger for genuinely new accounts
- Skip setting confirmed category for uncategorized transactions
- Improve file drop zone, button layout, and link styling with Tailwind

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@dlebech dlebech marked this pull request as ready for review February 13, 2026 15:04
…tory

Resolve all TypeScript type mismatches that prevented the Next.js build
from succeeding, add the @netlify/plugin-nextjs plugin for proper
deployment, and restore the public/manifest.json removed during the
CRA-to-Next.js migration.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Pull request overview

This pull request modernizes the application by migrating from Create React App with Netlify Lambda functions to a Next.js-based architecture. The changes update all dependencies to their latest versions (React 19, Node.js 24), convert JavaScript to TypeScript, replace Bootstrap with Tailwind CSS, and reorganize the project structure to use Next.js App Router with API routes.

Changes:

  • Migrated from CRA to Next.js 15 with App Router, converting all pages to the new routing structure
  • Updated all components from JavaScript to TypeScript with proper type definitions
  • Replaced Netlify Lambda functions with Next.js API routes for currency data fetching
  • Modernized build tooling: ESLint flat config, Jest with Next.js integration, Tailwind CSS with PostCSS

Reviewed changes

Copilot reviewed 165 out of 176 changed files in this pull request and generated no comments.

Show a summary per file
File Description
Configuration files (next.config.ts, tsconfig.json, jest.config.ts, eslint.config.mjs) Added Next.js, TypeScript, Jest, and ESLint configurations
API routes (src/app/api/currencies, src/app/api/currencyRates) Converted Lambda functions to Next.js API routes
Type definitions (src/types/.ts, src/types/.d.ts) Added comprehensive TypeScript type definitions
Components (src/components/**/*.tsx) Converted all components from JS to TypeScript with functional components
Utilities (src/utils/eurofx/*.ts) Added TypeScript types to utility functions
Reducers (src/reducers/*.ts) Added TypeScript types to Redux reducers
Page routes (src/app/**/page.tsx) Created Next.js App Router page structure
Removed files Deleted CRA-specific files, Lambda functions, and obsolete configurations

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@dlebech dlebech merged commit 31d678d into main Feb 14, 2026
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@dlebech dlebech deleted the vibe-upgrade branch February 14, 2026 08:49
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2 participants