# ante889/single_user_command_line_store architecture

> Architecture diagram of the GitHub repository ante889/single_user_command_line_store, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/ante889/single_user_command_line_store
- Repository: https://github.com/ante889/single_user_command_line_store

## Overview

This is a small PHP command-line store. The user enters inventory commands first; END transfers control to the cart stage, where ADD and REMOVE update available stock and CHECKOUT prints and clears the cart. The graph reflects the documented stages and sampled session-backed behavior; it does not assume unshown validation or command-loop details.

Main entry points: [`inventory.php`](https://github.com/ante889/single_user_command_line_store/blob/main/inventory.php) (Inventory commands), [`cart.php`](https://github.com/ante889/single_user_command_line_store/blob/main/cart.php) (Cart commands), [`index.php`](https://github.com/ante889/single_user_command_line_store/blob/main/index.php) (CLI entry)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_entry["CLI entry"]
  node_entrypoint["CLI entry<br/>[index.php]"]
end

subgraph group_inventory["Inventory stage"]
  node_inventory_handler["Inventory commands<br/>[inventory.php]"]
  node_inventory_state[("Inventory session<br/>[inventory.php]")]
end

subgraph group_cart["Cart stage"]
  node_cart_handler["Cart commands<br/>[cart.php]"]
  node_cart_state[("Cart session<br/>[cart.php]")]
end

node_user(("User"))

node_user -->|"starts program"| node_entrypoint
node_entrypoint -->|"includes and starts"| node_inventory_handler
node_user -->|"enters commands"| node_inventory_handler
node_inventory_handler -->|"stores stock"| node_inventory_state
node_inventory_handler -->|"prints prompts"| node_user
node_inventory_handler -->|"END includes stage"| node_cart_handler
node_user -->|"enters commands"| node_cart_handler
node_cart_handler -->|"updates cart"| node_cart_state
node_cart_handler -->|"checks and adjusts stock"| node_inventory_state
node_cart_handler -->|"prints checkout"| node_user

click node_entrypoint "https://github.com/ante889/single_user_command_line_store/blob/main/index.php"
click node_inventory_handler "https://github.com/ante889/single_user_command_line_store/blob/main/inventory.php"
click node_inventory_state "https://github.com/ante889/single_user_command_line_store/blob/main/inventory.php"
click node_cart_handler "https://github.com/ante889/single_user_command_line_store/blob/main/cart.php"
click node_cart_state "https://github.com/ante889/single_user_command_line_store/blob/main/cart.php"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_entrypoint,node_user toneBlue
class node_inventory_handler,node_inventory_state toneAmber
class node_cart_handler,node_cart_state toneMint
```

## Components

### CLI entry

- [CLI entry](https://github.com/ante889/single_user_command_line_store/blob/main/index.php): `index.php`

### Inventory stage

- [Inventory commands](https://github.com/ante889/single_user_command_line_store/blob/main/inventory.php): `inventory.php`
- [Inventory session](https://github.com/ante889/single_user_command_line_store/blob/main/inventory.php): `inventory.php`

### Cart stage

- [Cart commands](https://github.com/ante889/single_user_command_line_store/blob/main/cart.php): `cart.php`
- [Cart session](https://github.com/ante889/single_user_command_line_store/blob/main/cart.php): `cart.php`

### Other components

- **User**

## Connections

- User → CLI entry: starts program
- CLI entry → Inventory commands: includes and starts
- User → Inventory commands: enters commands
- Inventory commands → Inventory session: stores stock
- Inventory commands → User: prints prompts
- Inventory commands → Cart commands: END includes stage
- User → Cart commands: enters commands
- Cart commands → Cart session: updates cart
- Cart commands → Inventory session: checks and adjusts stock
- Cart commands → User: prints checkout