recipe-importer/README.md

# Recipe Importer

Docker container for importing recipes from Hungarian websites into [Mealie](https://mealie.io/) and [Tandoor Recipes](https://tandoor.dev/).

**Problem**: Mealie's and Tandoor's built-in URL import cannot parse ingredients and instructions from Hungarian recipe sites like mindmegette.hu.

**Solution**: This container provides a web UI that scrapes Hungarian recipe pages with site-specific parsers, lets you review and edit the extracted data, then pushes it to Mealie and/or Tandoor via their REST APIs.

## Architecture

```
┌──────────────────────────────────────────────────────┐
│  recipe-importer container (:8000)                   │
│                                                      │
│  Flask + Gunicorn                                    │
│  ├── /settings       → Configure Mealie & Tandoor    │
│  ├── /import         → Paste URL, scrape, review     │
│  ├── /scrape         → AJAX: parse recipe HTML       │
│  ├── /send           → AJAX: push to Mealie API      │
│  ├── /send-tandoor   → AJAX: push to Tandoor API     │
│  ├── /tags           → AJAX: list tags from both     │
│  └── /health         → Health check                  │
│                                                      │
│  Modules:                                            │
│  ├── app/config.py   → JSON config persistence       │
│  ├── app/scraper.py  → Site-specific parsers         │
│  ├── app/mealie.py   → Mealie REST API client        │
│  └── app/tandoor.py  → Tandoor REST API client       │
└───────────────────┬──────────────┬───────────────────┘
                    │ HTTP         │ HTTP
                    ▼              ▼
         ┌──────────────┐  ┌───────────────┐
         │  Mealie       │  │  Tandoor      │
         │  POST /api/.. │  │  POST /api/.. │
         │  PUT /api/..  │  │  PUT /api/..  │
         └──────────────┘  └───────────────┘
```

## Supported Sites

| Site | Ingredients | Instructions | Image | Tags |
|------|:-----------:|:------------:|:-----:|:----:|
| mindmegette.hu | Yes | Yes | Yes | Yes |
| streetkitchen.hu | Yes (with groups) | Yes (ol/ul/paragraph) | Yes | Yes (from JSON-LD categories) |
| nosalty.hu | Yes (with groups) | Yes (with section headers) | Yes | Yes |
| *Other sites* | Fallback (schema.org JSON-LD) | Fallback (schema.org JSON-LD) | Yes (og:image) | Fallback (schema.org keywords) |

### Mindmegette.hu Parser

Extracts data from the Angular-rendered HTML:

- **Title**: `og:title` meta tag, with ` | Mindmegette.hu` suffix stripped
- **Description**: `og:description` meta tag
- **Image**: `og:image` meta tag
- **Ingredients**: `div.ingredients` → `div.ingredients-meta` rows, each containing `<strong>` (qty), `<span>` (unit), `<a class="ingredients-link">` (food), `<small>` (extra)
- **Ingredient groups**: Multiple `div.ingredients` containers; group title via `<strong class="ingredients-group">`
- **Instructions**: `mindmegette-wysiwyg-box` → `ol > li` elements
- **Tags**: `<a class="tag">` elements inside `div.desktop-wrapper`

### Streetkitchen.hu Parser

Extracts data from the Next.js-rendered HTML:

- **Title**: `og:title` meta tag, with ` | Street Kitchen` suffix stripped
- **Description**: `og:description` meta tag
- **Image**: `og:image` meta tag (CDN URL)
- **Ingredients**: `div.grid.grid-cols-1` container → `div.my-2.flex` rows; quantity+unit merged in first `<div>` (split via regex), food in `<div class="font-bold">`, optional extra in parenthesised `<div>`
- **Ingredient groups**: `<h5>` headers inside section divs (e.g. "Az előfőzéshez", "A sütéshez")
- **Instructions**: Three formats handled — `<ol>` ordered list, `<ul>` unordered list, or plain `<p>` paragraphs (with optional `<strong>` section headers)
- **Tags**: `recipeCategory` field from JSON-LD `@graph` → `Recipe` object (comma-separated)

### Nosalty.hu Parser

Extracts data from the nosalty.hu recipe pages:

- **Title**: `og:title` meta tag
- **Description**: Story text from `div#recipe-story > p` (nosalty has no dedicated description field)
- **Image**: `og:image` meta tag
- **Ingredients**: Scoped to `div#ingredients` to avoid per-serving/nutrition duplicates; `ul.m-list__list > li.m-list__item` rows with `<span>` (qty+unit), `<a class="a-link">` (food), optional trailing `<span>` (extra notes in parentheses)
- **Ingredient groups**: `<h3 class="m-list__title">` headers between `<ul>` lists
- **Instructions**: `div#select` → `ol.m-list__list > li.m-list__item` steps; optional `<h4 class="m-list__title">` section headers
- **Tags**: `<a class="m-tags__tagItem">` inside `div.p-recipe__attributeList`

### Generic Fallback Parser

For unsupported sites, attempts extraction via:
1. Schema.org JSON-LD `@type: Recipe` blocks (`recipeIngredient`, `recipeInstructions`, `keywords`)
2. OpenGraph meta tags for title, description, image

### Adding a New Site Parser

1. Create a parser function in `app/scraper.py` with the `@_register("hostname")` decorator
2. The function receives `(soup: BeautifulSoup, url: str)` and returns the standard recipe dict
3. The hostname substring is matched against the URL — first match wins, unmatched URLs use the generic fallback

## Mealie API Integration

The importer uses the Mealie REST API:

1. **POST** `/api/recipes` — create a stub recipe (returns slug)
2. **PATCH** `/api/recipes/{slug}` — populate structured ingredients (with unit/food IDs), instructions, description, orgURL
3. **PUT** `/api/recipes/{slug}/image` — upload the recipe image

**Structured ingredients**: The client resolves unit and food names to Mealie database IDs. Missing units/foods are created automatically via the API. Ingredient groups are supported via the `title` field on the first ingredient of each group.

Authentication uses a long-lived API token (Bearer header), created in Mealie at *Profile → API Tokens*.

## Tandoor API Integration

The importer uses the Tandoor REST API:

1. **POST** `/api/recipe/` — create the full recipe in one call (name, description, source_url, steps with nested ingredients)
2. **PUT** `/api/recipe/{id}/image/` — upload the recipe image

**Step-based ingredients**: Tandoor nests ingredients inside steps. All ingredients are attached to the first step. Units and foods are auto-created by name (no separate resolution needed). Ingredient groups use `is_header: true` on a header entry.

**Duplicate detection**: Before import, searches Tandoor by title and checks the `source_url` field to detect already-imported recipes.

Authentication uses an API token (Bearer header), created in Tandoor at *Settings → API Browser → Auth Token*.

## Tag Management

Tags are scraped from recipe pages and shown as editable chips in the UI. Users can:
- **Remove** scraped tags that are irrelevant
- **Search** existing tags from Mealie and Tandoor (fetched via `GET /tags` endpoint)
- **Add** custom tags by typing and pressing Enter

Tags are sent to both services on import:
- **Mealie**: Tags are created via `POST /api/organizers/tags` if they don't exist, then attached to the recipe in the PATCH payload
- **Tandoor**: Keywords are auto-created by including `keywords: [{"name": "..."}]` in the recipe POST

## Configuration

All settings are persisted to `/data/config.json` (mounted as a Docker volume).

| Setting | Description |
|---------|-------------|
| `mealie_url` | Full URL to Mealie instance (e.g. `https://mealie.example.com`) |
| `mealie_api_key` | Mealie API token |
| `tandoor_url` | Full URL to Tandoor instance (e.g. `https://recipes.example.com`) |
| `tandoor_api_key` | Tandoor API token |

## Deployment

### Docker Compose

```yaml
services:
  recipe-importer:
    image: gitea.dooplex.hu/admin/recipe-importer:0.2.0
    container_name: recipe-importer
    restart: unless-stopped
    ports:
      - "8011:8000"
    volumes:
      - recipe-data:/data
    environment:
      - SECRET_KEY=change-me-in-production
      - MEALIE_INTERNAL_URL=http://mealie:9000
      - TANDOOR_INTERNAL_URL=http://tandoor:8080

volumes:
  recipe-data:
```

### Environment Variables

| Variable | Default | Description |
|----------|---------|-------------|
| `SECRET_KEY` | `recipe-importer-dev-key` | Flask session secret |
| `DATA_DIR` | `/data` | Persistent storage path |
| `VERSION` | `dev` | Shown in the UI navbar |
| `MEALIE_INTERNAL_URL` | *(empty)* | Docker-internal Mealie URL (e.g. `http://mealie:9000`) to avoid Cloudflare hairpin |
| `TANDOOR_INTERNAL_URL` | *(empty)* | Docker-internal Tandoor URL (e.g. `http://tandoor:8080`) to avoid Cloudflare hairpin |

## Building

On the build server (kisfenyo@192.168.0.180):

```bash
cd ~/build/recipe-importer
./build.sh X.X.X --push
```

## Web UI

The UI is in Hungarian and uses a dark theme. The workflow is:

1. **Settings** (`/settings`) — Configure Mealie and/or Tandoor connection (URL + API key), test each connection
2. **Import** (`/import`) — Paste a recipe URL, click "Beolvasás" (Scrape)
3. **Review** — Edit structured ingredients (4-column: quantity, unit, food, note), add/remove ingredient groups, edit instructions, manage tags (add/remove/search existing)
4. **Send** — Click "Importálás Mealie-be" and/or "Importálás Tandoor-ba" to push to your configured services

## Tech Stack

- **Runtime**: Python 3.12 (slim)
- **Web framework**: Flask 3.1 + Gunicorn
- **HTML parsing**: BeautifulSoup 4 + lxml
- **HTTP client**: requests
- **Container**: ~60 MB image