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Filename : UpgradeBase.php
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<?php

// phpcs:disable Generic.Commenting.DocComment.MissingShort
/** @noinspection PhpExpressionResultUnusedInspection */
/** @noinspection PhpPropertyOnlyWrittenInspection */
/** @noinspection UnusedConstructorDependenciesInspection */
/** @noinspection PhpUnusedAliasInspection */
// phpcs:enable Generic.Commenting.DocComment.MissingShort

namespace WPForms\Migrations;

// phpcs:disable WPForms.PHP.UseStatement.UnusedUseStatement
use WPForms\Migrations\Migrations;
use WPForms\Pro\Migrations\Migrations as MigrationsPro;
// phpcs:enable WPForms.PHP.UseStatement.UnusedUseStatement

/**
 * Class UpgradeBase contains both Lite and Pro plugin upgrade methods.
 *
 * @since 1.7.5
 */
abstract class UpgradeBase {

	/**
	 * Migration class instance.
	 *
	 * @since 1.7.5
	 *
	 * @var Migrations|MigrationsPro
	 */
	protected $migrations;

	/**
	 * Primary class constructor.
	 *
	 * @since 1.7.5
	 *
	 * @param Migrations|MigrationsPro $migrations Instance of Migrations class.
	 */
	public function __construct( $migrations ) {

		$this->migrations = $migrations;
	}

	/**
	 * Run upgrade.
	 *
	 * @since 1.7.5
	 *
	 * @return bool|null Upgrade result:
	 *                   true  - the upgrade completed successfully,
	 *                   false - in the case of failure,
	 *                   null  - upgrade started but not yet finished (background task).
	 */
	abstract public function run();

	/**
	 * Run the async upgrade via Action Scheduler (AS) task.
	 * The AS task has to support STATUS option with START, IN_PROGRESS, and COMPLETED values.
	 * Also, the AS task must have the init() method.
	 *
	 * @since 1.7.5
	 *
	 * @param string $class Classname of async AS task.
	 *
	 * @return bool|null Upgrade result:
	 *                   true  - the upgrade completed successfully,
	 *                   false - in the case of failure,
	 *                   null  - upgrade started but not yet finished (background task).
	 */
	protected function run_async( $class ) { // phpcs:ignore WPForms.PHP.HooksMethod.InvalidPlaceForAddingHooks

		$status = get_option( $class::STATUS );

		if ( $status === $class::COMPLETED ) {
			delete_option( $class::STATUS );

			return true;
		}

		if ( ! $status ) {
			update_option( $class::STATUS, $class::START );
		}

		// Class Tasks does not exist at this point, so we have to add an action on init.
		add_action(
			'init',
			function () use ( $class ) {
				( new $class() )->init();
			},
			PHP_INT_MAX
		);

		return null;
	}
}