If you are comfortable with Dart, Flutter and Hetu Script, you can start developing your first plugin.
This guide will help you initialize a plugin project and write your first plugin.

## Initializing a plugin project

[spotube-plugin-template][spotube-plugin-template] is a template repository for Spotube plugins. It's a starting point
with everything you need to get started with plugin development. You should use it to create your own plugin.

Simply clone or click "Use this template" button on the GitHub repository page to create a new repository.

```bash
$ git clone https://github.com/KRTirtho/spotube-plugin-template.git
$ cd spotube-plugin-template
```

## Understanding plugins.json

After cloning the repository, you will find a file named `plugins.json` in the root directory.
This file is crucial for Spotube to recognize your plugin. It looks like this:

```json
{
  "type": "metadata",
  "version": "1.0.0",
  "name": "Alphanumeric plugin name with hyphens or underscore",
  "author": "Your Name",
  "description": "A brief description of the plugin's functionality.",
  "entryPoint": "plugin class name",
  "apis": ["webview", "localstorage", "timezone"],
  "abilities": ["authentication", "scrobbling"],
  "repository": "https://github.com/KRTirtho/spotube-plugin-template",
  "pluginApiVersion": "1.0.0"
}
```

| Property           | Description                                                                                                                                                                 |
| ------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `type`             | The type of the plugin, which is always `metadata` for Spotube plugins.                                                                                                     |
| `version`          | The version of the plugin, following [semantic versioning][semantic-version] (e.g., `1.0.0`).                                                                               |
| `name`             | The name of the plugin                                                                                                                                                      |
| `author`           | The name of the plugin author.                                                                                                                                              |
| `description`      | A brief description of the plugin's functionality.                                                                                                                          |
| `entryPoint`       | The name of the class that serves as the entry point for the plugin.                                                                                                        |
| `apis`             | An array of APIs that the plugin uses. This is used to determine which APIs are available to the plugin. Following APIs are available "webview", "localstorage", "timezone" |
| `abilities`        | An array of abilities that the plugin has. This is used to determine which abilities the plugin has. Following abilities can be listed: "authentication", "scrobbling"      |
| `repository`       | The URL of the plugin's repository. This is used to display the plugin's repository in the plugin manager.                                                                  |
| `pluginApiVersion` | The version of the plugin API that the plugin uses. This is used to determine if the plugin is compatible with the current version of Spotube.                              |

Change the values in the `plugins.json` file to match your plugin's information.

## Running the `example` app

There's an `example` folder that contains a simple Flutter app that utilizes all the methods
Spotube would call on your plugin. You can run this app to test your plugin's functionality.

But first you need too compile the plugin to bytecode. You can simply do this using:

```shell
$ make
```

Make sure you've `make` command installed on your system and also must have the [hetu_script_dev_tools][hetu_script_dev_tools] package globally installed.
After compiling the plugin, you can run the example app like any other Flutter app.

```shell
$ cd example
$ flutter run
```

> Most of the buttons, will not work as they not yet implemented. You've to implement the methods in your plugin source code.
> We will cover how to implement the methods in the next section.

[spotube-plugin-template]: https://github.com/KRTirtho/spotube-plugin-template
[semantic-version]: https://semver.org/
[hetu_script_dev_tools]: https://pub.dev/packages/hetu_script_dev_tools