# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Project Overview

3CX TAPI is a dual-component integration that bridges the 3CX VoIP telephony web client with a CPA project management suite (CP Solutions) and a time tracking system (ZeitConsens). It is deployed as a Tampermonkey UserScript (client) communicating with a self-hosted ASP.NET Core API (server).

## Repository Structure

```
/
├── client/          # TypeScript UserScript (Tampermonkey)
├── server/          # C# ASP.NET Core 10.0 REST API
└── 3CX_TAPI.user.js # Built distribution file (committed artifact)
```

## Client Commands

All commands run from `client/`:

```bash
npm run build    # Production webpack build → dist/3CX TAPI.prod.user.js
npm run dev      # Development build with live reload
npm run lint     # ESLint on TypeScript/JavaScript sources
npm run anylize  # Build with webpack-bundle-analyzer
```

## Versioning & Release

**Never edit these files manually — they are auto-generated:**
- `client/package-lock.json` (generated by `npm install`)
- `3CX_TAPI.user.js` (generated by build)

To release a new version:
1. Bump `version` in `client/package.json` (1st digit = major, 2nd = feature, 3rd = bugfix/minor)
2. Build: `npm run build` (from `client/`)
3. Copy: `cp "dist/3CX TAPI.prod.user.js" ../3CX_TAPI.user.js`

## Server Commands

All commands run from `server/src/CPATapi.Server/`:

```bash
dotnet build                              # Debug build
dotnet build -c Release                   # Release build
dotnet publish -c Release -o /app/publish # Publish for deployment
docker build -f Dockerfile -t cpatapi-server .  # Docker image
```

No automated tests exist — only manual testing and client-side linting.

## Architecture

### Client (`client/src/`)

A Tampermonkey UserScript injected into the 3CX web UI at `https://192.168.0.154:5001/*` and `https://cpsolution.my3cx.at:5001/*`. Entry point: `src/index.js`.

Four main modules:

- **`search.ts`** — Autocomplete contact lookup box injected near the call button. Debounces input and calls `GET /search?query=...`. On selection, dials the contact via 3CX.
- **`call-history.ts`** — Monitors 3CX call history entries, does reverse lookup via `GET /callerid/{number}`, and adds a "PM Zeitbuchung" button that opens the Domizil PM time booking system with pre-filled metadata (contact ID, timestamp, duration).
- **`call-notification.ts`** — Enriches incoming call GM notifications with contact name/medium fetched from TAPI directory.
- **`status.ts`** — Polls `GET /availability/{user}` every 30 seconds and auto-syncs 3CX presence status with ZeitConsens login state (odd stamp count = logged in, even = logged out). User settings (username, enabled, status IDs) persist via `GM.setValue`.

API base URL is configured in `src/config.ts` (`Config.tapi_server_url`).
UserScript metadata (match URLs, GM grants, CORS) is in `config/metadata.cjs`.

### Server (`server/src/CPATapi.Server/`)

ASP.NET Core 10.0 Web API using Dapper for SQL Server queries. Deployed as a Docker Linux container exposing port 8080.

**API Endpoints:**

| Endpoint | Description |
|---|---|
| `GET /search?query=` | Splits query into terms, searches `CP_TAPI_DIRECTORY` by name or number (top 10) |
| `GET /contact` | Returns all contacts from `CP_TAPI_DIRECTORY` |
| `GET /callerid/{number}` | Reverse lookup: extracts last 5 digits, returns first matching contact or 404 |
| `GET /availability/users` | Lists active users from `MA_DATEN` |
| `GET /availability/{user}` | Counts today's stamps in `BU` table; odd count = logged in |

**Data flow:** Controllers → Repository interfaces → Dapper repositories → SQL Server.

Two connection strings in `appsettings.json`:
- `"Tapi"` — contacts database (`CP_TAPI_DIRECTORY` table)
- `"ZeitConsens"` — time tracking database (`MA_DATEN`, `BU` tables)

Logging uses Serilog with client IP, correlation ID, and user-agent enrichment.