# config_cli

A development tool for loading and inspecting INI configuration files against the node's schema. Useful for verifying that a config file parses correctly and seeing what values would be applied.

---

## Build

From the repository root:

```sh
make cli
```

The binary is placed in `build/cli/`.

---

## Usage

### Load a config file

```sh
./config_cli <file>
```

Parses the file and prints all resolved values. Values absent from the file are filled with schema defaults.

Example:

```sh
./config_cli /etc/video-node/node.cfg
```

Example output:

```
[node]
  name                 = camera:0
  site_id              = 0
  tcp_port             = 8000
  function             = source

[discovery]
  interval_ms          = 5000
  timeout_intervals    = 3

[transport]
  max_connections      = 16
```

### Print schema defaults

```sh
./config_cli --defaults
```

Prints all keys with their default values and types, without reading any file.

---

## Config Schema

| Section | Key | Type | Default |
|---|---|---|---|
| `node` | `name` | string | `unnamed:0` |
| `node` | `site_id` | uint16 | `0` |
| `node` | `tcp_port` | uint16 | `0` (auto) |
| `node` | `function` | flags | `source` |
| `discovery` | `interval_ms` | uint32 | `5000` |
| `discovery` | `timeout_intervals` | uint32 | `3` |
| `transport` | `max_connections` | uint32 | `16` |

`function` accepts a comma-separated list of role flags: `source`, `relay`, `sink`, `controller`.

---

## Relationship to the Video Routing System

`config_cli` exercises the `config` module used by the video node at startup. Both the node binary and `config_cli` share the same schema definition, so this tool is an accurate preview of how the node will interpret a config file.