<?php

/**
 * Class ActivePayments
 *
 * Filter active gateways and cart calculate.
 */
class ActivePayments {

	/**
	 * Plugin settings.
	 *
	 * @var array
	 */
	protected $settings;

	/**
	 * Plugin.
	 *
	 * @var WooCommerce_Active_Payments_Plugin Plugin.
	 */
	private $plugin;

	/**
	 * Has settings
	 *
	 * @var bool
	 */
	protected $is_without_any_settings;


	/**
	 * ActivePayments constructor.
	 *
	 * @param WooCommerce_Active_Payments_Plugin $plugin Plugin.
	 */
	public function __construct( WooCommerce_Active_Payments_Plugin $plugin ) {
		$this->plugin                  = $plugin;
		$this->settings                = $plugin->get_settings();
		$this->is_without_any_settings = empty( $this->settings );
	}

	/**
	 * Fires hooks
	 */
	public function hooks() {
		add_filter( 'woocommerce_available_payment_gateways', array( $this, 'filter_active_gateways' ), 100 );
		add_action( 'woocommerce_cart_calculate_fees', array( $this, 'woocommerce_cart_calculate_fees' ), 100 );
		add_filter( 'wpdesk_value_in_currency', array( $this, 'wpdesk_value_in_currency_wpml' ), 1 );
		add_filter( 'wpdesk_value_in_currency', array( $this, 'wpdesk_value_in_currency_aelia' ), 1 );
		add_filter( 'wpdesk_value_in_currency', array( $this, 'wpdesk_value_in_currency_wmcs' ), 1 );
		add_filter( 'wpdesk_value_in_currency', array( $this, 'wpdesk_value_in_currency_woocs' ), 1 );
	}


	/**
	 * Added support for WPML
	 *
	 * @param string $value Value.
	 *
	 * @return mixed|void
	 */
	public function wpdesk_value_in_currency_wpml( $value ) {
		global $woocommerce_wpml;
		if ( isset( $woocommerce_wpml ) ) {
			$value = apply_filters( 'wcml_raw_price_amount', $value );
		}
		return $value;
	}

	/**
	 * Added support for Aelia Currency Switcher
	 *
	 * @param string $value Value.
	 *
	 * @return mixed|void
	 */
	public function wpdesk_value_in_currency_aelia( $value ) {
		if ( class_exists( 'WC_Aelia_CurrencySwitcher' ) ) {
			$aelia          = WC_Aelia_CurrencySwitcher::instance();
			$aelia_settings = WC_Aelia_CurrencySwitcher::settings();
			$from_currency  = $aelia_settings->base_currency();
			$to_currency    = $aelia->get_selected_currency();
			$value          = $aelia->convert( $value, $from_currency, $to_currency );
		}
		return $value;
	}

	/**
	 * Added support for WMCS
	 *
	 * @param string $value Value.
	 *
	 * @return mixed
	 */
	public function wpdesk_value_in_currency_wmcs( $value ) {
		if ( function_exists( 'wmcs_convert_price' ) ) {
			$value = wmcs_convert_price( $value );
		}
		return $value;
	}

	/**
	 * Added support for WOOCS
	 *
	 * @param string $value Value.
	 *
	 * @return mixed
	 */
	public function wpdesk_value_in_currency_woocs( $value ) {
		if ( isset( $GLOBALS['WOOCS'] ) ) {
			$value = $GLOBALS['WOOCS']->woocs_exchange_value( $value );
		}
		return $value;
	}

	/**
	 * Get option from gateway
	 *
	 * @param WC_Shipping_Flat_Rate $gateway Flat rate gateway.
	 *
	 * @return array
	 */
	public static function get_options_from_gateway( WC_Shipping_Flat_Rate $gateway ) {
		$woocommerce = WooCommerce::instance();

		if ( version_compare( $woocommerce->version, '2.4.0', '>=' ) ) {
			return explode( "\n", $gateway->settings['options'] );
		} else {
			return $gateway->options;
		}
	}

	/**
	 * Generate flat rate from title
	 *
	 * @param string $title Title.
	 *
	 * @return string
	 */
	public static function generate_flat_id_from_title( $title ) {
		return ( sanitize_title( trim( $title ) ) );
	}

	/**
	 * Calculate cart
	 *
	 * @param WC_Cart $cart Cart.
	 *
	 * @return void
	 */
	public function woocommerce_cart_calculate_fees( WC_Cart $cart ) {
		global $woocommerce;
		$ap_options_fees = get_option( 'woocommerce_activepayments_options_fees', array() );

		$current_gateway = $woocommerce->session->chosen_payment_method;

		$avaliable_gateways = $woocommerce->payment_gateways()->get_available_payment_gateways();

		if ( ! in_array( $current_gateway, array_keys( $avaliable_gateways ), true ) ) {
			$current_gateway = '';
			foreach ( $avaliable_gateways as $gateway_key => $gateway_val ) {
				$current_gateway = $gateway_key;
				break;
			}
		}
		if (
			isset( $ap_options_fees[ $current_gateway ] ) &&
			isset( $ap_options_fees[ $current_gateway ]['enabled'] ) &&
			'1' === $ap_options_fees[ $current_gateway ]['enabled']
		) {
			$taxable    = true;
			$calc_taxes = get_option( 'woocommerce_calc_taxes' ) === 'yes' ? true : false;
			if ( ! $calc_taxes ) {
				$taxable = false;
			}
			$tax_class = '-none-';
			if ( isset( $ap_options_fees[ $current_gateway ]['tax_class'] ) ) {
				$tax_class = $ap_options_fees[ $current_gateway ]['tax_class'];
			}
			if ( '-none-' === $tax_class ) {
				$taxable = false;
			}

			$title              = $ap_options_fees[ $current_gateway ]['title'];
			$amount             = $ap_options_fees[ $current_gateway ]['amount'];
			$type               = $ap_options_fees[ $current_gateway ]['type'];
			$total_in_cart      = $cart->cart_contents_total + $cart->shipping_total;
			$prices_include_tax = get_option( 'woocommerce_prices_include_tax' ) === 'yes' ? true : false;

			if ( $calc_taxes && $prices_include_tax ) {
				if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
					$taxes = $cart->taxes;
				} else {
					$taxes = $cart->get_taxes();
				}
				foreach ( $taxes as $tax_value ) {
					$total_in_cart = $total_in_cart + $tax_value;
				}
				if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
					$shipping_taxes = $cart->shipping_taxes;
				} else {
					$shipping_taxes = $cart->get_shipping_taxes();
				}
				foreach ( $shipping_taxes as $tax_value ) {
					$total_in_cart = $total_in_cart + $tax_value;
				}
			}
			$min_order_total = $ap_options_fees[ $current_gateway ]['min_order_total'];
			if ( '' !== $min_order_total ) {
				$min_order_total = apply_filters( 'wpdesk_value_in_currency', floatval( $min_order_total ) );
			} else {
				$min_order_total = 0;
			}
			$max_order_total = $ap_options_fees[ $current_gateway ]['max_order_total'];
			if ( '' !== $max_order_total ) {
				$max_order_total = apply_filters( 'wpdesk_value_in_currency', floatval( $max_order_total ) );
			}
			if ( $total_in_cart >= $min_order_total && ( '' === $max_order_total || $total_in_cart <= $max_order_total ) ) {
				if ( '' !== $amount && '0' !== $amount ) {
					$amount = floatval( $amount );
					if ( 'fixed' === $type ) {
						$fee = apply_filters( 'wpdesk_value_in_currency', $amount );
					}
					if ( 'percent' === $type ) {
						$precision = get_option( 'woocommerce_price_num_decimals', 2 );
						$fee       = apply_filters( 'wpdesk_value_in_currency', round( $total_in_cart * $amount / 100, $precision ) );
					}
					if ( $taxable ) {
						$cart->add_fee( $title, $fee, $taxable, $tax_class );
					} else {
						$cart->add_fee( $title, $fee, $taxable );
					}
					$woocommerce->session->set( 'active_payments_fee', sanitize_title( $title ) );
				}
			}
		}
	}

	/**
	 * Filter active gateways
	 *
	 * @param array $gateways Gateways.
	 *
	 * @return array
	 */
	public function filter_active_gateways( array $gateways ) {
		if ( ! is_checkout() || $this->is_without_any_settings ) {
			return $gateways;
		}
		global $woocommerce;

		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
			if ( wc_prices_include_tax() ) {
				$sum = WC()->cart->subtotal;
			} else {
				$sum = WC()->cart->subtotal_ex_tax;
			}
		} else {
			$sum = WC()->cart->get_subtotal();
			if ( wc_prices_include_tax() ) {
				$sum += WC()->cart->get_subtotal_tax();
			}
		}

		if ( version_compare( $woocommerce->version, '2.1.0', '>=' ) ) {
			$shipping_method = @reset( $woocommerce->session->get( 'chosen_shipping_methods' ) );
		} else {
			$shipping_method = $woocommerce->sesssion->chosen_shipping_method;
		}

		if ( ! empty( $shipping_method ) ) {

			if ( version_compare( $woocommerce->version, '2.6', '>=' ) ) {
				if ( strpos( $shipping_method, 'flexible_shipping_ups' ) === 0 ) {
					$shipping_method = substr( $shipping_method, 0, strpos( $shipping_method, ':', strlen( 'flexible_shipping_ups:' ) ) );
				}
				$ap_options = $this->settings;
				foreach ( $gateways as $gateway_id => $gateway ) {
					if ( 'apaczka' === $shipping_method || 'apaczka_cod' === $shipping_method ) {
						if ( ! isset( $ap_options[ $shipping_method . ':0' ][ $gateway_id ] ) || 0 === $ap_options[ $shipping_method . ':0' ][ $gateway_id ] ) {
							unset( $gateways[ $gateway_id ] );
						}
					} elseif ( ! isset( $ap_options[ $shipping_method ][ $gateway_id ] ) || 0 === $ap_options[ $shipping_method ][ $gateway_id ] ) {
						if ( ! isset( $ap_options[ $shipping_method . ':0' ][ $gateway_id ] ) || 0 === $ap_options[ $shipping_method . ':0' ][ $gateway_id ] ) {
							unset( $gateways[ $gateway_id ] );
						}
					}
					if ( isset( $ap_options[ $gateway_id ] ) && isset( $ap_options[ $gateway_id ]['amount'] ) && '' !== $ap_options[ $gateway_id ]['amount'] && floatval( $ap_options[ $gateway_id ]['amount'] ) < $sum ) {
						unset( $gateways[ $gateway_id ] );
					}
				}

				return $gateways;
			} else {
				$new_gateways = array();

				$flat        = strpos( $shipping_method, 'flat_rate' ) !== false;
				$shipping_fs = false;

				if ( $flat ) {
					$shipping_method = explode( ':', $shipping_method );
					$shipping_table  = false;
				} else {
					$shipping_table = strpos( $shipping_method, 'table_rate_shipping' ) !== false;
					$shipping_fs    = strpos( $shipping_method, 'flexible_shipping' ) !== false;

				}

				foreach ( $gateways as $gateway_id => $gateway ) {
					if ( $flat ) {
						if ( isset( $shipping_method[1] ) && '' !== $shipping_method[1] ) {
							$shipping_method[1] = self::generate_flat_id_from_title( $shipping_method[1] );
							$md5                = $shipping_method[0] . '_' . $gateway_id . '_' . $shipping_method[1];
						} else {
							$md5 = str_replace( '-', '_', $shipping_method[0] ) . '_' . $gateway_id;
						}
					} elseif ( $shipping_table ) {
						$md5 = 'table_rate_shipping_' . $gateway_id . '_' . str_replace( array( 'table-rate-shipping-', 'table_rate_shipping_' ), '', $shipping_method );
					} elseif ( $shipping_fs ) {
						$md5 = 'flexible_shipping_' . $gateway_id . '_' . $shipping_method;
					} else {
						$md5 = str_replace( '-', '_', $shipping_method ) . '_' . $gateway_id;
					}

					$amount = $this->plugin->get_setting_value( 'pm_' . md5( $gateway_id . '_amount' ) );

					$setting       = 'pm_' . md5( $md5 );
					$setting_value = $this->plugin->get_setting_value( $setting );

					if ( ! empty( $setting_value ) ) {
						if ( empty( $amount ) || ( ! empty( $amount ) && $sum < $amount ) ) {
							$new_gateways[ $gateway_id ] = $gateway;
						}
					}
				}

				return $new_gateways;
			}
		} else {
			return $gateways;
		}

	}

}