eparators' => false,
			'searchShowMoreSeparators'      => false,
			'overviewPostType'              => 'post',
		],
		'dismissedAlerts' => [
			'searchStatisticsContentRankings' => false,
			'searchConsoleNotConnected'       => false,
			'searchConsoleSitemapErrors'      => false
		],
		'internalTabs'    => [
			'authorArchives'    => 'title-description',
			'dateArchives'      => 'title-description',
			'searchArchives'    => 'title-description',
			'seoAuditChecklist' => 'all-items'
		],
		'tablePagination' => [
			'networkDomains'                         => 20,
			'redirects'                              => 20,
			'redirectLogs'                           => 20,
			'redirect404Logs'                        => 20,
			'sitemapAdditionalPages'                 => 20,
			'linkAssistantLinksReport'               => 20,
			'linkAssistantPostsReport'               => 20,
			'linkAssistantDomainsReport'             => 20,
			'searchStatisticsSeoStatistics'          => 20,
			'searchStatisticsKeywordRankings'        => 20,
			'searchStatisticsContentRankings'        => 20,
			'searchStatisticsPostDetailKeywords'     => 20,
			'searchStatisticsKrtKeywords'            => 20,
			'searchStatisticsKrtGroups'              => 20,
			'searchStatisticsKrtGroupsTableKeywords' => 10,
			'queryArgs'                              => 20
		],
		'semrushCountry'  => 'US'
	];

	/**
	 * The Construct method.
	 *
	 * @since 4.0.0
	 *
	 * @param string $settings An array of settings.
	 */
	public function __construct( $settings = '_aioseo_settings' ) {
		$this->addDynamicDefaults();

		$this->settingsName = $settings;

		$dbSettings     = get_user_meta( get_current_user_id(), $settings, true );
		$this->settings = $dbSettings
			? array_replace_recursive( $this->defaults, $dbSettings )
			: $this->defaults;
	}

	/**
	 * Adds some defaults that are dynamically generated.
	 *
	 * @since 4.0.0
	 *
	 * @return void
	 */
	private function addDynamicDefaults() {
		$postTypes = aioseo()->helpers->getPublicPostTypes( false, false, true, [ 'include' => [ 'buddypress' ] ] );
		foreach ( $postTypes as $postType ) {
			$this->defaults['toggledCards'][ $postType['name'] . 'SA' ] = true;
			$this->defaults['internalTabs'][ $postType['name'] . 'SA' ] = 'title-description';
		}

		$taxonomies = aioseo()->helpers->getPublicTaxonomies( false, true );
		foreach ( $taxonomies as $taxonomy ) {
			$this->defaults['toggledCards'][ $taxonomy['name'] . 'SA' ] = true;
			$this->defaults['internalTabs'][ $taxonomy['name'] . 'SA' ] = 'title-description';
		}

		$postTypes = aioseo()->helpers->getPublicPostTypes( false, true, true, [ 'include' => [ 'buddypress' ] ] );
		foreach ( $postTypes as $postType ) {
			$this->defaults['toggledCards'][ $postType['name'] . 'ArchiveArchives' ] = true;
			$this->defaults['internalTabs'][ $postType['name'] . 'ArchiveArchives' ] = 'title-description';
		}

		// Check any addons for defaults.
		$addonsDefaults = array_filter( aioseo()->addons->doAddonFunction( 'vueSettings', 'addDynamicDefaults' ) );
		foreach ( $addonsDefaults as $addonDefaults ) {
			$this->defaults = array_merge_recursive( $this->defaults, $addonDefaults );
		}
	}

	/**
	 * Retrieves all settings.
	 *
	 * @since 4.0.0
	 *
	 * @return array An array of settings.
	 */
	public function all() {
		return array_replace_recursive( $this->defaults, $this->settings );
	}

	/**
	 * Retrieve a setting or null if missing.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name      The name of the property that is missing on the class.
	 * @param  array  $arguments The arguments passed into the method.
	 * @return mixed             The value from the settings or default/null.
	 */
	public function __call( $name, $arguments = [] ) {
		$value = isset( $this->settings[ $name ] ) ? $this->settings[ $name ] : ( ! empty( $arguments[0] ) ? $arguments[0] : $this->getDefault( $name ) );

		return $value;
	}

	/**
	 * Retrieve a setting or null if missing.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name The name of the property that is missing on the class.
	 * @return mixed        The value from the settings or default/null.
	 */
	public function __get( $name ) {
		$value = isset( $this->settings[ $name ] ) ? $this->settings[ $name ] : $this->getDefault( $name );

		return $value;
	}

	/**
	 * Sets the settings value and saves to the database.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name  The name of the settings.
	 * @param  mixed  $value The value to set.
	 * @return void
	 */
	public function __set( $name, $value ) {
		$this->settings[ $name ] = $value;

		$this->update();
	}

	/**
	 * Checks if an settings is set or returns null if not.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name The name of the settings.
	 * @return mixed        True or null.
	 */
	public function __isset( $name ) {
		return isset( $this->settings[ $name ] ) ? false === empty( $this->settings[ $name ] ) : null;
	}

	/**
	 * Unsets the settings value and saves to the database.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name  The name of the settings.
	 * @return void
	 */
	public function __unset( $name ) {
		if ( ! isset( $this->settings[ $name ] ) ) {
			return;
		}

		unset( $this->settings[ $name ] );

		$this->update();
	}

	/**
	 * Gets the default value for a setting.
	 *
	 * @since 4.0.0
	 *
	 * @param  string $name The settings name.
	 * @return mixed        The default value.
	 */
	public function getDefault( $name ) {
		return isset( $this->defaults[ $name ] ) ? $this->defaults[ $name ] : null;
	}

	/**
	 * Updates the settings in the database.
	 *
	 * @since 4.0.0
	 *
	 * @return void
	 */
	public function update() {
		update_user_meta( get_current_user_id(), $this->settingsName, $this->settings );
	}
}