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<?php
declare( strict_types=1 );

namespace Automattic\WooCommerce\GoogleListingsAndAds\Assets;

use Automattic\WooCommerce\GoogleListingsAndAds\Exception\InvalidAsset;

/**
 * Class ScriptAsset
 *
 * @package Automattic\WooCommerce\GoogleListingsAndAds\Assets
 */
class ScriptAsset extends BaseAsset {

/**
	 * Whether the script should be printed in the footer.
	 *
	 * @var bool
	 */
	protected $in_footer = false;

/**
	 * Array of localizations to add to the script.
	 *
	 * @var array
	 */
	protected $localizations = [];

/**
	 * Array of inline scripts to pass generic data from PHP to JavaScript with JSON format.
	 *
	 * @var array
	 */

protected $inline_scripts = [];

/**
	 * ScriptAsset constructor.
	 *
	 * @param string        $handle                        The asset handle.
	 * @param string        $uri                           The URI for the asset.
	 * @param array         $dependencies                  (Optional) Any dependencies the asset has.
	 * @param string        $version                       (Optional) A version string for the asset. Will default to
	 *                                                     the plugin version if not set.
	 * @param callable|null $enqueue_condition_callback    (Optional) The asset is always enqueued if this callback
	 *                                                     returns true or isn't set.
	 * @param bool          $in_footer                     (Optional) Whether the script should be printed in the
	 *                                                     footer. Defaults to false.
	 */
	public function __construct(
		string $handle,
		string $uri,
		array $dependencies = [],
		string $version = '',
		callable $enqueue_condition_callback = null,
		bool $in_footer = false
	) {
		$this->in_footer = $in_footer;
		parent::__construct( 'js', $handle, $uri, $dependencies, $version, $enqueue_condition_callback );
	}

/**
	 * Add a localization to the script.
	 *
	 * @param string $object The object name.
	 * @param array  $data   Array of data for the object.
	 *
	 * @return $this
	 */
	public function add_localization( string $object, array $data ): ScriptAsset {
		$this->localizations[ $object ] = $data;

return $this;
	}

/**
	 * Add a inline script to pass generic data from PHP to JavaScript.
	 *
	 * @param string $variable_name The global JavaScript variable name.
	 * @param array  $data          Array of data to be encoded to JSON format.
	 *
	 * @return $this
	 */
	public function add_inline_script( string $variable_name, array $data ): ScriptAsset {
		$this->inline_scripts[ $variable_name ] = $data;

return $this;
	}

/**
	 * Get the register callback to use.
	 *
	 * @return callable
	 */
	protected function get_register_callback(): callable {
		return function() {
			if ( wp_script_is( $this->handle, 'registered' ) ) {
				return;
			}

wp_register_script(
				$this->handle,
				$this->uri,
				$this->dependencies,
				$this->version,
				$this->in_footer
			);
		};
	}

/**
	 * Get the enqueue callback to use.
	 *
	 * @return callable
	 */
	protected function get_enqueue_callback(): callable {
		return function() {
			if ( ! wp_script_is( $this->handle, 'registered' ) ) {
				throw InvalidAsset::asset_not_registered( $this->handle );
			}

foreach ( $this->localizations as $object_name => $data_array ) {
				wp_localize_script( $this->handle, $object_name, $data_array );
			}

foreach ( $this->inline_scripts as $variable_name => $data_array ) {
				$inline_script = "var $variable_name = " . json_encode( $data_array );
				wp_add_inline_script( $this->handle, $inline_script, 'before' );
			}

wp_enqueue_script( $this->handle );

if ( in_array( 'wp-i18n', $this->dependencies, true ) ) {
				wp_set_script_translations( $this->handle, 'google-listings-and-ads' );
			}
		};
	}

/**
	 * Get the dequeue callback to use.
	 *
	 * @return callable
	 */
	protected function get_dequeue_callback(): callable {
		return function() {
			wp_dequeue_script( $this->handle );
		};
	}

}