<?php
if ( ! class_exists( 'WFACP_Class_Register_Third_Party_Fields' ) ) {
	#[AllowDynamicProperties]
	class WFACP_Class_Register_Third_Party_Fields {
		public $new_fields = [];
		public $fields_added = [];
		private $checkout_fields = [];
		public $previous_keys = [];
		private static $instance = null;
		private $wc_fields_under_billing = [];
		private $wc_fields_under_shipping = [];
		private $native_checkout_fields = null;
		private $all_default_fields = [];
		private $third_party_fields_active = [
			'wc_advanced_order_field'  => false,
			'billing_wc_custom_field'  => false,
			'shipping_wc_custom_field' => false
		];
		private $saved_checkout_fields = [];

		public static function get_instance( $fields = [] ) {
			if ( null == self::$instance ) {
				self::$instance = new self( $fields );
			}

			return self::$instance;
		}

		private function __construct( $fields ) {


			$this->saved_checkout_fields = $fields;
			add_action( 'wfacp_after_template_found', [ $this, 'actions' ] );
			add_action( 'wfacp_after_checkout_page_found', [ $this, 'actions' ], 20 );

			/**
			 * Capture Billing and shipping fields
			 */
			add_action( 'woocommerce_billing_fields', [ $this, 'capture_billing_fields' ], 99999 );
			add_action( 'woocommerce_shipping_fields', [ $this, 'capture_shipping_fields' ], 99999 );

			add_action( 'wfacp_after_checkout_page_found', [ $this, 'add_wrapper' ] );

			add_action( 'woocommerce_checkout_update_order_meta', [ $this, 'woocommerce_checkout_update_order_meta' ], 9999, 2 );
			add_action( 'wfacp_update_posted_data_vice_versa_keys', [ $this, 'update_posted_data_vice_versa_keys' ] );

		}

		public function capture_billing_fields( $fields ) {
			if ( false === $this->third_party_fields_active['billing_wc_custom_field'] ) {
				return $fields;
			}
			if ( is_array( $fields ) && count( $fields ) > 0 ) {
				$this->wc_fields_under_billing = $fields;
			}


			return $fields;
		}

		public function capture_shipping_fields( $fields ) {
			if ( false === $this->third_party_fields_active['shipping_wc_custom_field'] ) {
				return $fields;
			}
			if ( is_array( $fields ) && count( $fields ) > 0 ) {
				$this->wc_fields_under_shipping = $fields;
			}


			return $fields;
		}

		/**
		 * @return void
		 * Checking the custom fields active or not and add Default AeroCheckout class using hook
		 */
		public function actions() {
			if ( ! $this->is_enabled() ) {
				return;
			}
			$this->native_checkout_fields = WC()->checkout();
			/**
			 * Prevent Field to render Custom Registered Fields Billing, Shipping or Advanced Fields
			 */
			add_filter( 'wfacp_html_fields_billing_wc_custom_field', '__return_false' );
			add_filter( 'wfacp_html_fields_shipping_wc_custom_field', '__return_false' );
			add_filter( 'wfacp_html_fields_wc_advanced_order_field', '__return_false' );

			/**
			 * Process the custom advanced field
			 */

			add_action( 'process_wfacp_html', [ $this, 'wc_advanced_order_field' ], 9999, 2 );
			add_filter( 'wfacp_form_section', [ $this, 'detect_extra_fields' ], 10, 3 );
			add_action( 'wfacp_before_form', [ $this, 'find_extra_fields' ] );


			add_filter( 'woocommerce_form_field_args', [ $this, 'add_default_wfacp_styling' ], 10, 2 );

		}

		public function add_wrapper() {


			/**
			 * Add default Hook for billing wrapper
			 */
			add_action( 'wfacp_divider_billing', [ $this, 'before_billing_action' ], 9999 );
			add_action( 'wfacp_divider_billing_end', [ $this, 'after_billing_action' ], 99999 );
			/**
			 * Add default Hook for Shipping wrapper
			 */
			add_action( 'wfacp_divider_shipping', [ $this, 'before_shipping_action' ], 9999 );
			add_action( 'wfacp_divider_shipping_end', [ $this, 'after_shipping_action' ], 99999 );


		}

		/**
		 * @return boolean
		 * Checking the custom fields for advanced, billing and shipping
		 */
		public function is_enabled() {
			$data   = $this->saved_checkout_fields;
			$status = false;
			$fields = [
				'advanced' => 'wc_advanced_order_field',
				'billing'  => 'billing_wc_custom_field',
				'shipping' => 'shipping_wc_custom_field'
			];
			foreach ( $fields as $type => $field ) {
				if ( isset( $data[ $type ][ $field ] ) ) {
					$this->third_party_fields_active[ $field ] = true;
					$status                                    = true;
				}
			}

			return $status;
		}

		/**
		 * @param $args
		 * @param $key
		 *
		 * @return void
		 *
		 * This Function return the advance custom field which are registered on the native checkout
		 * but not for Funnelkit checkout
		 */
		public function wc_advanced_order_field( $args, $key ) {

			if ( $key != 'wc_advanced_order_field' ) {
				return;
			}

			/**
			 * Get Native Checkout Fields
			 */
			$checkout = WC()->checkout();

			$fields = apply_filters( 'wfacp_advanced_order_fields', $checkout->get_checkout_fields(), $key );


			/**
			 * Get Registered AeroCheckout Fields
			 */
			$address_fields = WFACP_Common::get_aero_registered_checkout_fields();

			$instance = wfacp_template();
			$data     = $instance->get_checkout_fields();


			?>
            <div class="woocommerce-additional-fields" id="wfacp-third-party-fields-wrap">
				<?php
				do_action( 'wfacp_woocommerce_before_order_notes', WC()->checkout() );
				do_action( 'woocommerce_before_order_notes', WC()->checkout() );
				?>
                <div class="woocommerce-additional-fields__field-wrapper">
					<?php

					foreach ( $fields as $key1 => $field1 ) {
						foreach ( $field1 as $key => $field ) {
							if ( $key1 == 'billing' || $key1 == 'shipping' ) {
								continue;
							}


							if ( isset( $data[ $key1 ][ $key ] ) ) {
								$this->fields_added[] = $key;
								continue;
							}

							$field = apply_filters( 'wfacp_print_advanced_custom_fields', $field, $key );

							if ( ( ! empty( $field ) && ! in_array( $key, $address_fields ) || in_array( $key, $this->fields_added ) ) ) {
								$this->fields_added[] = $key;
								if ( ! isset( $instance->already_printed_fields[ $key ] ) ) {
									wfacp_form_field( $key, $field, $checkout->get_value( $key ) );
									$instance->already_printed_fields[ $key ] = 'yes';
								}
							}
						}
					}
					?>
                </div>
				<?php

				do_action( 'woocommerce_after_order_notes', WC()->checkout() );
				do_action( 'wfacp_woocommerce_after_order_notes', WC()->checkout() );
				?>
            </div>
			<?php
		}

		/**
		 * @return void
		 *
		 * Add Billing Wrapper and add the default hook of woocommerce woocommerce_before_checkout_billing_form
		 */
		public function before_billing_action() {
			do_action( 'woocommerce_before_checkout_billing_form', $this->native_checkout_fields );
		}

		public function after_billing_action() {


			do_action( 'woocommerce_after_checkout_billing_form', $this->native_checkout_fields );

		}

		/**
		 * @return void
		 *
		 * Add Shipping Wrapper and add the default hook of woocommerce woocommerce_before_checkout_shipping_form
		 */
		public function before_shipping_action() {
			do_action( 'woocommerce_before_checkout_shipping_form', $this->native_checkout_fields );
		}

		public function after_shipping_action() {
			do_action( 'woocommerce_after_checkout_shipping_form', $this->native_checkout_fields );
		}

		/**
		 * Merge value of second array if not present in the first array
		 *
		 * @param $array1
		 * @param $array2
		 *
		 * @return array
		 */
		public function array_merge( $array1, $array2 ) {
			foreach ( $array2 as $key => $value ) {
				if ( isset( $array1[ $key ] ) ) {
					continue;
				}
				$array1[ $key ] = $value;
			}

			return $array1;
		}

		/**
		 * @return void
		 *
		 * This function use to Find Extra Fields
		 */
		public function find_extra_fields() {
			$fields = WC()->checkout()->get_checkout_fields();

			$this->all_default_fields = $fields;
			$our_fields               = WFACP_Common::get_aero_registered_checkout_fields();


			if ( isset( $fields['billing'] ) && ! empty( $fields['billing'] ) ) {

				if ( is_array( $this->wc_fields_under_billing ) && count( $this->wc_fields_under_billing ) > 0 ) {
					$fields['billing'] = apply_filters( 'wfacp_third_party_billing_fields', $this->array_merge( $fields['billing'], $this->wc_fields_under_billing ) );
				}

				$this->checkout_fields['billing'] = array_filter( $fields['billing'], function ( $v, $key ) use ( $our_fields ) {
					return ! ( in_array( $key, $our_fields ) || ( isset( $v['id'] ) && in_array( $v['id'], $our_fields ) ) );
				}, ARRAY_FILTER_USE_BOTH );
			}
			if ( isset( $fields['shipping'] ) && ! empty( $fields['shipping'] ) ) {

				if ( is_array( $this->wc_fields_under_shipping ) && count( $this->wc_fields_under_shipping ) > 0 ) {
					$fields['shipping'] = apply_filters( 'wfacp_third_party_shipping_fields', $this->array_merge( $fields['shipping'], $this->wc_fields_under_shipping ) );
				}

				$this->checkout_fields['shipping'] = array_filter( $fields['shipping'], function ( $v, $key ) use ( $our_fields ) {
					return ! ( in_array( $key, $our_fields ) || ( isset( $v['id'] ) && in_array( $v['id'], $our_fields ) ) );
				}, ARRAY_FILTER_USE_BOTH );
			}
		}

		public function detect_extra_fields( $section, $section_index, $step ) {
			$offset = 0;
			$fields = $section['fields'];

			$temp = [];


			foreach ( $section['fields'] as $key => $single ) {
				if ( $single['id'] == 'billing_wc_custom_field' && ! empty( $this->checkout_fields['billing'] ) ) {
					$fields = $this->merge_fields( $fields, $offset, $this->checkout_fields['billing'], $single );
					$temp[] = $single['id'];
					break;
				}
				if ( $single['id'] === 'shipping_wc_custom_field' && ! empty( $this->checkout_fields['shipping'] ) ) {
					$fields = $this->merge_fields( $fields, $offset, $this->checkout_fields['shipping'], $single );
					$temp[] = $single['id'];
					break;
				}
				$offset ++;
			}

			$extra_fields = [];
			if ( in_array( 'billing_wc_custom_field', $temp ) && isset( $this->checkout_fields['shipping'] ) ) {
				$extra_fields = $this->checkout_fields['shipping'];

			} elseif ( isset( $this->checkout_fields['billing'] ) ) {
				$extra_fields = $this->checkout_fields['billing'];

			}


			$section['fields'] = apply_filters( 'wfacp_detect_extra_fields', $fields, $extra_fields, $temp );

			return $section;
		}

		public function merge_fields( &$oldArray, $offset, $new_array, $place_fields ) {
			try {
				foreach ( $new_array as $i => $item ) {
					$new_array[ $i ]['id'] = $i;
					if ( ! isset( $new_array[ $i ]['class'] ) || ! is_array( $new_array[ $i ]['class'] ) ) {
						$new_array[ $i ]['class'] = [];
					}
					if ( false !== strpos( $i, 'billing_' ) && isset( $this->checkout_fields['billing'][ $i ] ) && isset( $this->checkout_fields['billing'][ $i ]['id'] ) && ( $this->checkout_fields['billing'][ $i ]['id'] != $new_array[ $i ]['id'] ) ) {
						$new_array[ $i ]['id'] = $this->checkout_fields['billing'][ $i ]['id'];
					}

					if ( false !== strpos( $i, 'shipping_' ) && isset( $this->checkout_fields['shipping'][ $i ] ) && isset( $this->checkout_fields['shipping'][ $i ]['id'] ) && ( $this->checkout_fields['shipping'][ $i ]['id'] != $new_array[ $i ]['id'] ) ) {
						$new_array[ $i ]['id'] = $this->checkout_fields['shipping'][ $i ]['id'];
					}
					$new_array[ $i ]['external_field_name'] = $i;
					$new_array[ $i ]['class']               = $new_array[ $i ]['class'] + $place_fields['class'];
					$this->fields_added[]                   = $new_array[ $i ]['id'];
				}

				return array_slice( $oldArray, 0, $offset, true ) + $new_array + array_slice( $oldArray, $offset, null, true );
			} catch ( Exception|Error $error ) {
				return $oldArray;
			}

		}

		public function checkout_fields( $fields ) {
			try {
				if ( ! is_array( $fields ) || count( $fields ) == 0 ) {
					return $fields;
				}
				$other_address_fields = WFACP_Common::get_aero_registered_checkout_fields();
				foreach ( $fields as $field_val_key => $field ) {

					if ( in_array( $field_val_key, $other_address_fields ) ) {
						continue;
					}
					$field['id'] = $field_val_key;
					if ( ! isset( $field['priority'] ) ) {
						$field['priority'] = 100;
					}
					$this->new_fields['billing'][ $field_val_key ] = $field;
					$this->previous_keys[ $field_val_key ]         = $field['priority'];
				}
			} catch ( Exception|Error $error ) {
				return $fields;
			}

			return $fields;
		}

		/**
		 * @param $args
		 * @param $key
		 *
		 * @return mixed
		 *
		 * Add Default AeroCheckout class on the field when class not exists
		 */
		public function add_default_wfacp_styling( $args, $key ) {

			$other_address_fields = WFACP_Common::get_aero_registered_checkout_fields();

			if ( ! in_array( $key, $other_address_fields ) && isset( $args['class'] ) && is_array( $args['class'] ) && ! in_array( 'wfacp-col-full', $args['class'] ) ) {
				$args['class'] = array_merge( [ 'wfacp-form-control-wrapper', 'wfacp-col-full' ], $args['class'] );
				if ( false !== strpos( $args['type'], 'hidden' ) ) {
					$args['class'][] = 'wfacp_type_hidden_field';
				}
			}
			if ( isset( $args['cssready'] ) && is_array( $args['cssready'] ) && ! in_array( 'wfacp-col-full', $args['cssready'] ) ) {
				$args['cssready'] = [ 'wfacp-col-full' ];
			}

			if ( isset( $args['type'] ) && 'checkbox' !== $args['type'] ) {
				if ( isset( $args['input_class'] ) && is_array( $args['input_class'] ) && ! in_array( 'wfacp-form-control', $args['input_class'] ) ) {
					$args['input_class'] = array_merge( [ 'wfacp-form-control' ], $args['input_class'] );
				}
				if ( isset( $args['label_class'] ) && is_array( $args['label_class'] ) && ! in_array( 'wfacp-form-control-label', $args['label_class'] ) ) {
					$args['label_class'] = array_merge( [ 'wfacp-form-control-label' ], $args['label_class'] );;
				}
			}

			if ( is_array( $this->wc_fields_under_billing ) && count( $this->wc_fields_under_billing ) > 0 && array_key_exists( $key, $this->wc_fields_under_billing ) && in_array( $key, $this->fields_added ) ) {
				if ( isset( $args['label'] ) && empty( $args['label'] ) && isset( $this->wc_fields_under_billing[ $key ]['label'] ) ) {
					$args['label'] = $this->wc_fields_under_billing[ $key ]['label'];
				}
				if ( isset( $args['options'] ) && empty( $args['options'] ) && isset( $this->wc_fields_under_billing[ $key ]['options'] ) ) {
					$args['options'] = $this->wc_fields_under_billing[ $key ]['options'];
				}
			}


			if ( ! isset( $args['is_wfacp_field'] ) && 'select' !== $args['type'] && ( isset( $args['placeholder'] ) && empty( $args['placeholder'] ) ) && isset( $args['label'] ) ) {
				$args['placeholder'] = $args['label'];
			}


			if ( ! in_array( $key, $other_address_fields ) && isset( $args['type'] ) && 'select' === $args['type'] && count( $this->wc_fields_under_billing ) > 0 && array_key_exists( $key, $this->wc_fields_under_billing ) && isset( $this->wc_fields_under_billing[ $key ]['options'] ) ) {
				$args['options'] = $this->wc_fields_under_billing[ $key ]['options'];
			}

			/**
			 * Merge Default Classes under billing and shipping address fields
			 */

			if ( apply_filters( 'wfacp_merge_default_billing_fields_classes', false, $key ) && isset( $args['class'] ) && is_array( $args['class'] ) && isset( $this->wc_fields_under_billing[ $key ]['class'] ) && is_array( $this->wc_fields_under_billing[ $key ]['class'] ) ) {
				$args['class'] = array_values( array_unique( array_merge( $args['class'], $this->wc_fields_under_billing[ $key ]['class'] ) ) );
			}

			if ( apply_filters( 'wfacp_merge_default_shipping_fields_classes', false, $key ) && isset( $args['class'] ) && is_array( $args['class'] ) && isset( $this->wc_fields_under_shipping[ $key ]['class'] ) && is_array( $this->wc_fields_under_shipping[ $key ]['class'] ) ) {
				$args['class'] = array_values( array_unique( array_merge( $args['class'], $this->wc_fields_under_shipping[ $key ]['class'] ) ) );
			}

			$check_default_classes_for_field = [ 'billing_company' ];


			if ( strpos( $key, 'billing_' ) !== false && in_array( $key, $check_default_classes_for_field ) && isset( $this->all_default_fields['billing'][ $key ]['class'] ) ) {


				if ( is_array( $args['class'] ) && is_array( $this->all_default_fields['billing'][ $key ]['class'] ) ) {
					$args['class'] = array_unique( array_merge( $args['class'], $this->all_default_fields['billing'][ $key ]['class'] ) );
				}
			}


			return apply_filters( 'wfacp_woocommerce_form_field_args', $args, $key, $this->wc_fields_under_billing, $this->wc_fields_under_shipping );
		}

		public function woocommerce_checkout_update_order_meta( $order_id, $data ) {
			$missingKeys = [];

			if ( ! isset( $_POST['_wfacp_post_id'] ) ) {
				return;
			}
			$order = wc_get_order( $order_id );

			$default_checkout_fields = WC()->checkout()->get_checkout_fields();
			$excludedKeys            = WFACP_Common::get_aero_registered_checkout_fields();

			if ( is_array( $default_checkout_fields ) && count( $default_checkout_fields ) > 0 ) {

				foreach ( $default_checkout_fields as $i => $default_checkout_field ) {

					if ( $i !== 'billing' && $i != 'shipping' ) {
						continue;

					}
					foreach ( $default_checkout_field as $key => $field ) {
						if ( ! in_array( $key, $excludedKeys ) ) {
							$missingKeys[] = $key;
						}

					}
				}
			}


			if ( is_array( $missingKeys ) && count( $missingKeys ) > 0 ) {
				foreach ( $missingKeys as $item ) {
					if ( ! empty( $item ) && isset( $_POST[ $item ] ) ) {
						$meta_key   = '_' . $item;
						$meta_value = get_post_meta( $order_id, $meta_key, true );
						if ( empty( $meta_value ) ) {
							$order->{$item} = $_POST[ $item ];
							$order->update_meta_data( '_' . $item, $_POST[ $item ] );
						}

					}
				}
				$order->save();
			}


		}

		public function update_posted_data_vice_versa_keys( $keys ) {
			$missingKeys = [];
			if ( is_array( $_POST ) && count( $_POST ) > 0 ) {
				foreach ( $_POST as $i => $default_checkout_field ) {
					if ( false == strpos( $i, 'billing' ) && false == strpos( $i, 'shipping' ) ) {
						continue;
					}
					$missingKeys[] = $i;
				}
			}
			if ( is_array( $missingKeys ) && count( $missingKeys ) > 0 ) {
				foreach ( $missingKeys as $i => $v ) {
					$keys[ $v ] = $v;
				}
			}

			return $keys;
		}

	}
}
