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Filename : class-wpml-st-settings.php
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<?php

class WPML_ST_Settings {
	const SETTINGS_KEY = 'icl_st_settings';

	/**
	 * @var array
	 */
	private $settings = null;

	/**
	 * @var array
	 */
	private $updated_settings = array();

	/**
	 * @return array
	 */
	public function get_settings() {
		if ( ! $this->settings ) {
			$options        = get_option( self::SETTINGS_KEY );
			$this->settings = is_array( $options ) ? $options : array();
		}

		return array_merge( $this->settings, $this->updated_settings );
	}

	/**
	 * @param string $name
	 *
	 * @return mixed|null
	 */
	public function get_setting( $name ) {
		$this->get_settings();

		return isset( $this->settings[ $name ] ) ? $this->settings[ $name ] : null;
	}

	/**
	 * @param string $key
	 * @param mixed $value
	 * @param bool $save
	 */
	public function update_setting( $key, $value, $save = false ) {
		$this->get_settings();

		$this->updated_settings[ $key ] = $value;

		if ( $save ) {
			$this->save_settings();
		}
	}

	public function delete_settings() {
		delete_option( self::SETTINGS_KEY );
	}
	
	public function save_settings() {
		$settings = $this->get_settings();

		update_option( self::SETTINGS_KEY, $settings );
		do_action( 'icl_save_settings', $this->updated_settings );
		
		$this->updated_settings = array();
		$this->settings = $settings;
	}
}