kronan-cli

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CLI for Kronan.is grocery store. AI-agent friendly. Built with Bun.

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# kronan-cli

CLI for [Krónan.is](https://www.kronan.is) -- Iceland's grocery store. Search products, manage your cart, and view order history from the terminal. Built with [Bun](https://bun.sh) and designed to be used by AI agents.

Uses the new Krónan Public API (https://api.kronan.is/api/v1/).

## Install

### One-liner (requires [GitHub CLI](https://cli.github.com))

```bash
gh repo clone arnif/kronan-cli /tmp/kronan-cli && bash /tmp/kronan-cli/install.sh
```

This downloads the latest pre-built binary for your platform and installs it to `~/.local/bin/kronan`.

### Custom install directory

```bash
INSTALL_DIR=/usr/local/bin bash install.sh
```

### From source (development)

```bash
git clone https://github.com/arnif/kronan-cli.git
cd kronan-cli
bun install
bun run src/index.ts help
```

## Authentication

Krónan's Public API uses **AccessToken** authentication. You need to create an access token from your Krónan account settings.

1. Go to https://kronan.is/adgangur/adgangslyklar
2. Create a new access token
3. Save it with the CLI:

```bash
kronan token <your-access-token>
kronan status            # Check if token is valid
kronan logout            # Clear token
```

Tokens are stored in `~/.kronan/token`. Profile data is stored in `~/.kronan/profiles.json`.

**Note:** You must have a Krónan account with Auðkenni (Icelandic e-ID) login to create access tokens.

### Multiple profiles

If you have access to multiple Krónan accounts (e.g., personal and a shared family account), you can save tokens as named profiles and switch between them:

```bash
kronan token <personal-token> --name personal
kronan token <family-token> --name family

kronan profiles              # List saved profiles
kronan profile family        # Switch to family profile
kronan profile personal      # Switch back
kronan profile remove family # Remove a profile
```

## Usage

```
kronan token <token>          Save access token
kronan token <token> --name <name>  Save as named profile
kronan profiles               List saved profiles
kronan profile <name>         Switch active profile
kronan status                 Check authentication status
kronan logout                 Clear stored token

kronan search <query>         Search for products
kronan product <sku>          Product details by SKU

kronan cart                              View cart
kronan cart add <sku> [qty]              Add item to cart
kronan cart set '<json>'                 Replace whole cart with JSON lines
kronan cart update <sku|id> --quantity N Update one line (qty 0 removes)
kronan cart update '<json-patch>'        Bulk update via JSON patch
kronan cart remove <sku|id>              Remove a single line
kronan cart clear                        Clear cart
                                         (set/update/remove/clear support --dry-run)

kronan orders                 Order history
kronan order <token>          Specific order details

kronan lists                  View product lists
kronan me                     Show current identity
```

All commands support `--json` for structured output. Cart mutation commands
(`set`, `update`, `remove`, `clear`) also accept `--dry-run` to preview the
resulting cart without calling the API.

### Cart editing examples

```bash
# Replace the entire cart with a fixed set of lines
kronan cart set '[{"sku":"02500188","quantity":3}]'
kronan cart set '{"02500188":1,"100151784":2}'

# Update a single line by SKU or numeric line id
kronan cart update 02500188 --quantity 5
kronan cart update 13065307 --quantity 0      # qty 0 removes the line

# Bulk update: object/array of {sku:qty} as a patch.
# Listed SKUs are set to the given qty (0 removes); unlisted lines are left
# alone. SKUs not currently in the cart are added when qty > 0.
kronan cart update '{"02500188":3,"100151784":0,"100224198":1}'

# Remove a single line (shorthand for --quantity 0)
kronan cart remove 02500188

# Preview any of the above without hitting the API
kronan cart update '{"02500188":3}' --dry-run --json
```

## AI agent usage

kronan-cli is designed to be called by AI agents as a tool. The `--json` flag on every command returns structured data suitable for parsing.

Example: an agent analyzing purchase history and building a weekly shopping cart:

```bash
# Analyze past orders
kronan orders --json

# Search for a product
kronan search "mjolk" --json --limit 5

# Build a cart from frequent items
kronan cart add 100224198 6    # Nymjolk x6
kronan cart add 02200946 1     # Heimilisbraud
kronan cart add 100253786 4    # Bananar

# Review
kronan cart --json
```

## Project structure

```
src/
  index.ts              CLI entry point and command routing
  auth.ts               AccessToken storage and management
  api.ts                Krónan Public API client
  commands/
    login.ts            token, logout, status
    search.ts           product search and detail
    orders.ts           order history
    cart.ts             cart management
```

## API Documentation

The Krónan Public API is documented at:
- Swagger UI: https://api.kronan.is/api/v1/schema/swagger-ui/
- ReDoc: https://api.kronan.is/api/v1/schema/redoc/

## Privacy

`kronan me` outputs your identity information. Be careful when sharing this output — avoid pasting it in public channels, issue trackers, or LLM conversations that may be logged.

## Requirements

- Krónan account with Auðkenni (Icelandic e-ID) login
- Access token from https://kronan.is/adgangur/adgangslyklar
- [GitHub CLI](https://cli.github.com) for installation (or [Bun](https://bun.sh) if running from source)

## License

MIT

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