<?php
/**
 * CARTFLOWS Helper.
 *
 * @package CARTFLOWS
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Class Cartflows_Helper.
 */
class Cartflows_Helper {

	/**
	 * Common global data
	 *
	 * @var zapier
	 */
	private static $common = null;

	/**
	 * Checkout Fields
	 *
	 * @var checkout_fields
	 */
	private static $checkout_fields = null;

	/**
	 * Returns an option from the database for
	 * the admin settings page.
	 *
	 * @param  string  $key     The option key.
	 * @param  mixed   $default Option default value if option is not available.
	 * @param  boolean $network_override Whether to allow the network admin setting to be overridden on subsites.
	 * @return string           Return the option value
	 */
	public static function get_admin_settings_option( $key, $default = false, $network_override = false ) {

		// Get the site-wide option if we're in the network admin.
		if ( $network_override && is_multisite() ) {
			$value = get_site_option( $key, $default );
		} else {
			$value = get_option( $key, $default );
		}

		return $value;
	}

	/**
	 * Updates an option from the admin settings page.
	 *
	 * @param string $key       The option key.
	 * @param mixed  $value     The value to update.
	 * @param bool   $network   Whether to allow the network admin setting to be overridden on subsites.
	 * @return mixed
	 */
	static public function update_admin_settings_option( $key, $value, $network = false ) {

		// Update the site-wide option since we're in the network admin.
		if ( $network && is_multisite() ) {
			update_site_option( $key, $value );
		} else {
			update_option( $key, $value );
		}

	}

	/**
	 * Get zapier settings.
	 *
	 * @return  array.
	 */
	static public function get_common_settings() {

		if ( null === self::$common ) {

			$common_default = apply_filters(
				'cartflows_common_settings_default',
				array(
					'disallow_indexing' => 'disable',
					'global_checkout'   => '',
				)
			);

			$common = Cartflows_Helper::get_admin_settings_option( '_cartflows_common', false, true );

			self::$common = wp_parse_args( $common, $common_default );
		}

		return self::$common;
	}

	/**
	 * Get Checkout field.
	 *
	 * @param string $key Field key.
	 * @param int    $post_id Post id.
	 * @return array.
	 */
	static public function get_checkout_fields( $key, $post_id ) {

		$saved_fields = get_post_meta( $post_id, 'wcf_fields_' . $key, true );

		if ( ! $saved_fields ) {
			$saved_fields = array();
		}

		$fields = array_filter( $saved_fields );

		if ( empty( $fields ) ) {
			if ( 'billing' === $key || 'shipping' === $key ) {

				$fields = WC()->countries->get_address_fields( WC()->countries->get_base_country(), $key . '_' );

				update_post_meta( $post_id, 'wcf_fields_' . $key, $fields );
			}
		}

		return $fields;
	}

	/**
	 * Add Checkout field.
	 *
	 * @param string $type Field type.
	 * @param string $field_key Field key.
	 * @param array  $field_data Field data.
	 * @param int    $post_id Post id.
	 * @return  boolean.
	 */
	static public function add_checkout_field( $type, $field_key, $field_data = array(), $post_id ) {

		$fields = self::get_checkout_fields( $type, $post_id );

		$fields[ $field_key ] = $field_data;

		update_post_meta( $post_id, 'wcf_fields_' . $type, $fields );

		return true;
	}

	/**
	 * Get checkout fields settings.
	 *
	 * @param string $type Field type.
	 * @param string $field_key Field key.
	 * @param int    $post_id Post id.
	 * @return  array.
	 */
	static public function delete_checkout_field( $type, $field_key, $post_id ) {

		$fields = self::get_checkout_fields( $type, $post_id );

		if ( isset( $fields[ $field_key ] ) ) {
			unset( $fields[ $field_key ] );
		}

		update_post_meta( $post_id, 'wcf_fields_' . $type, $fields );

		return true;
	}

	/**
	 * Get checkout fields settings.
	 *
	 * @return  array.
	 */
	static public function get_checkout_fields_settings() {

		if ( null === self::$checkout_fields ) {
			$checkout_fields_default = array(
				'enable_customization'  => 'disable',
				'enable_billing_fields' => 'disable',
			);

			$billing_fields = self::get_checkout_fields( 'billing' );

			if ( is_array( $billing_fields ) && ! empty( $billing_fields ) ) {

				foreach ( $billing_fields as $key => $value ) {

					$checkout_fields_default[ $key ] = 'enable';
				}
			}

			$checkout_fields = Cartflows_Helper::get_admin_settings_option( '_wcf_checkout_fields', false, true );

			self::$checkout_fields = wp_parse_args( $checkout_fields, $checkout_fields_default );
		}

		return self::$checkout_fields;
	}

	/**
	 * Get meta options
	 *
	 * @since 1.0.0
	 * @param  int    $post_id     Product ID.
	 * @param  string $key      Meta Key.
	 * @param  string $default      Default value.
	 * @return string           Meta Value.
	 */
	static public function get_meta_option( $post_id, $key, $default = '' ) {

		$value = get_post_meta( $post_id, $key, true );

		if ( ! $value ) {
			$value = $default;
		}

		return $value;
	}

	/**
	 * Save meta option
	 *
	 * @since 1.0.0
	 * @param  int   $post_id     Product ID.
	 * @param  array $args      Arguments array.
	 */
	static public function save_meta_option( $post_id, $args = array() ) {

		if ( is_array( $args ) && ! empty( $args ) ) {

			foreach ( $args as $key => $value ) {

				update_post_meta( $post_id, $key, $value );
			}
		}
	}

	/**
	 * Check if Elementor page builder is installed
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 */
	static public function _is_elementor_installed() {
		$path    = 'elementor/elementor.php';
		$plugins = get_plugins();

		return isset( $plugins[ $path ] );
	}

	/**
	 * Check if Step has product assigned.
	 *
	 * @since 1.0.0
	 * @param int $step_id step ID.
	 *
	 * @access public
	 */
	static public function has_product_assigned( $step_id ) {

		$step_type = get_post_meta( $step_id, 'wcf-step-type', true );

		if ( 'checkout' == $step_type ) {
			$product = get_post_meta( $step_id, 'wcf-checkout-products', true );
		} else {
			$product = get_post_meta( $step_id, 'wcf-offer-product', true );
		}

		if ( ! empty( $product ) ) {
			return true;
		}
		return false;

	}

	/**
	 * Get attributes for cartflows wrap.
	 *
	 * @since x.x.x
	 *
	 * @access public
	 */
	static public function get_cartflows_container_atts() {

		$attributes  = apply_filters( 'cartflows_container_atts', array() );
		$atts_string = '';

		foreach ( $attributes as $key => $value ) {

			if ( ! $value ) {
				continue;
			}

			if ( true === $value ) {
				$atts_string .= esc_html( $key ) . ' ';
			} else {
				$atts_string .= sprintf( '%s="%s" ', esc_html( $key ), esc_attr( $value ) );
			}
		}

		return $atts_string;
	}
}