Files
evidencija-rezija/CLAUDE.md
Knee Cola 362a49e3cd refactor: simplify to independent multi-project structure
Removed npm workspace configuration in favor of simple multi-project repository.
Each project (web-app, housekeeping) is now completely self-contained.

## Changes
- Removed root package.json and package-lock.json
- Added VS Code workspace file for better project organization
- Updated documentation to reflect independent project structure
- Each project manages its own dependencies without workspace linking

## Structure
- web-app/: Self-contained Next.js application
- housekeeping/: Self-contained DB maintenance scripts
- No workspace management or dependency sharing
- Monorepo is purely for Git organization

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-25 12:25:46 +01:00

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# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Repository Structure
This is a multi-project repository containing:
- **web-app/**: Next.js 14 utility bills tracking application
- **housekeeping/**: Database backup and maintenance scripts
Each project is self-contained with its own dependencies.
## Development Commands
All commands should be run from within the respective project directory.
**Web App** (`cd web-app`):
- `npm install` - Install dependencies
- `npm run dev` - Start development server
- `npm run build` - Build production version
- `npm start` - Start production server
- `npm run prettier` - Format code
- `npm run seed` - Seed database with initial data
**Housekeeping** (`cd housekeeping`):
- `./db-backup--standalone.sh` - Run standalone database backup
- `./db-backup--swarm.sh` - Run swarm database backup
- `./db-dump--standalone.sh` - Run standalone database dump
- See housekeeping/README.md for more details
## Deployment Commands
- `./build.sh` - Build Docker image for deployment
- `./deploy.sh` - Deploy Docker service to production
- `./debug-deploy.sh` - Deploy with debug configuration
## Architecture Overview
This is a Next.js 14 utility bills tracking application ("Evidencija Režija") with the following key components:
### Tech Stack
- **Framework**: Next.js 14 with App Router and standalone output for Docker
- **Authentication**: NextAuth v5 with Google OAuth
- **Database**: MongoDB with connection pooling
- **Internationalization**: next-intl (Croatian/English)
- **Styling**: Tailwind CSS with DaisyUI components
- **Deployment**: Docker with MongoDB 4.4.27 (AVX compatibility)
### Core Architecture Patterns
**Multi-user Data Isolation**: All database operations use the `withUser` higher-order function from `web-app/app/lib/auth.ts:102` to automatically inject authenticated user ID into queries, ensuring data isolation between users.
**Server Actions Pattern**: Form handling uses Next.js Server Actions with Zod validation. Actions are defined in `web-app/app/lib/actions/` and follow the pattern:
```typescript
export const actionName = withUser(async (user: AuthenticatedUser, ...args) => {
// Server action implementation with automatic user context
});
```
**Internationalization**: Uses next-intl with locale-based routing. Messages are in `web-app/messages/` directory. The middleware handles both auth and i18n routing.
### Key Files & Responsibilities
- `web-app/middleware.ts` - Handles authentication and i18n routing, defines public pages
- `web-app/app/lib/auth.ts` - NextAuth configuration, `withUser` HOF for user context
- `web-app/app/lib/dbClient.ts` - MongoDB connection with development/production handling
- `web-app/app/lib/actions/` - Server actions for data mutations (locations, bills, months)
- `web-app/app/i18n.ts` - Internationalization configuration (Croatian default)
- `web-app/next.config.js` - Standalone build config with `serverActions.allowedOrigins` for Docker deployment
- `housekeeping/` - Database backup and maintenance scripts
### Database Schema
- **Collections**: Locations, Bills, Months (year-month periods)
- **User Association**: All documents include `userId` field for multi-tenant isolation
- **Database Name**: "utility-bills"
### Docker Deployment Notes
- Uses standalone Next.js build for Docker optimization
- MongoDB 4.4.27 required for older CPU compatibility (no AVX instructions)
- `HOSTNAME=0.0.0.0` with `serverActions.allowedOrigins` config to handle reverse proxy headers
- Environment variables: `MONGODB_URI`, `GOOGLE_ID`, `GOOGLE_SECRET`, `AUTH_SECRET`
### Barcode/QR Code Feature
- Uses `@zxing/library` and `@zxing/browser` for PDF document scanning
- Heavy barcode decoding operations should be moved to background threads if performance issues arise
- PDF processing with `pdfjs-dist` for utility bill scanning
### Testing & Code Quality
- ESLint with Next.js and Prettier configurations
- No specific test framework configured - check with user before assuming testing approach