/**
	 * Maybe create billing address from legacy meta.
	 *
	 * @param PaymentInfo $payment The payment to read.
	 * @return void
	 */
	private function maybe_create_billing_address_from_legacy_meta( $payment ) {
		if ( null !== $payment->get_billing_address() ) {
			// Bail out if there is already a billing address.
			return;
		}

		$id = $payment->get_id();

		if ( empty( $id ) ) {
			return;
		}

		$data = array(
			'line_1'      => $this->get_meta_string( $id, 'address' ),
			'postal_code' => $this->get_meta_string( $id, 'zip' ),
			'city'        => $this->get_meta_string( $id, 'city' ),
			'country'     => $this->get_meta_string( $id, 'country' ),
			'email'       => $this->get_meta_string( $id, 'email' ),
			'phone'       => $this->get_meta_string( $id, 'telephone_number' ),
		);

		$data = array_filter( $data );
		$data = array_map( 'trim', $data );
		$data = array_filter( $data );

		if ( empty( $data ) ) {
			// Bail out if there is no address data.
			return;
		}

		$address = new Address();

		$payment->set_billing_address( $address );

		$address->set_name( $this->get_contact_name_from_legacy_meta( $payment ) );

		if ( isset( $data['line_1'] ) ) {
			$address->set_line_1( $data['line_1'] );
		}

		if ( isset( $data['postal_code'] ) ) {
			$address->set_postal_code( $data['postal_code'] );
		}

		if ( isset( $data['city'] ) ) {
			$address->set_city( $data['city'] );
		}

		if ( isset( $data['country'] ) ) {
			if ( 2 === strlen( $data['country'] ) ) {
				$address->set_country_code( $data['country'] );
			} else {
				$address->set_country_name( $data['country'] );
			}
		}

		if ( isset( $data['email'] ) ) {
			$address->set_email( $data['email'] );
		}

		if ( isset( $data['phone'] ) ) {
			$address->set_phone( $data['phone'] );
		}
	}

	/**
	 * Maybe create consumer bank details from legacy meta.
	 *
	 * @param PaymentInfo $payment The payment to read.
	 * @return void
	 */
	private function maybe_create_consumer_bank_details_from_legacy_meta( $payment ) {
		if ( null !== $payment->get_consumer_bank_details() ) {
			// Bail out if there is already a billing consumer_bank_details.
			return;
		}

		$id = $payment->get_id();

		if ( empty( $id ) ) {
			return;
		}

		$data = array(
			'consumer_name'           => $this->get_meta_string( $id, 'consumer_name' ),
			'consumer_account_number' => $this->get_meta_string( $id, 'consumer_account_number' ),
			'consumer_iban'           => $this->get_meta_string( $id, 'consumer_iban' ),
			'consumer_bic'            => $this->get_meta_string( $id, 'consumer_bic' ),
			'consumer_city'           => $this->get_meta_string( $id, 'consumer_city' ),
		);

		$data = array_filter( $data );
		$data = array_map( 'trim', $data );
		$data = array_filter( $data );

		if ( empty( $data ) ) {
			// Bail out if there is no consumer data.
			return;
		}

		$consumer_bank_details = new BankAccountDetails();

		$payment->set_consumer_bank_details( $consumer_bank_details );

		if ( isset( $data['consumer_name'] ) ) {
			$consumer_bank_details->set_name( $data['consumer_name'] );
		}

		if ( isset( $data['consumer_account_number'] ) ) {
			$consumer_bank_details->set_account_number( $data['consumer_account_number'] );
		}

		if ( isset( $data['consumer_iban'] ) ) {
			$consumer_bank_details->set_iban( $data['consumer_iban'] );
		}

		if ( isset( $data['consumer_bic'] ) ) {
			$consumer_bank_details->set_bic( $data['consumer_bic'] );
		}

		if ( isset( $data['consumer_city'] ) ) {
			$consumer_bank_details->set_city( $data['consumer_city'] );
		}
	}

	/**
	 * Read post meta.
	 *
	 * @link https://github.com/woocommerce/woocommerce/blob/3.2.6/includes/abstracts/abstract-wc-data.php#L462-L507
	 * @param PaymentInfo $payment The payment to read.
	 * @return void
	 */
	protected function read_post_meta( $payment ) {
		$this->maybe_create_customer_from_legacy_meta( $payment );
		$this->maybe_create_billing_address_from_legacy_meta( $payment );
		$this->maybe_create_consumer_bank_details_from_legacy_meta( $payment );
	}

	/**
	 * Get update meta.
	 *
	 * @param PaymentInfo $payment The payment to update.
	 * @param array       $meta    Meta array.
	 *
	 * @return array
	 */
	protected function get_update_meta( $payment, $meta = array() ) {
		// Customer.
		$customer = $payment->get_customer();

		if ( null !== $customer ) {
			// Deprecated meta values.
			$meta['language']   = $customer->get_language();
			$meta['locale']     = $customer->get_locale();
			$meta['user_agent'] = $customer->get_user_agent();
			$meta['user_ip']    = $customer->get_ip_address();

			$name = $customer->get_name();

			if ( null !== $name ) {
				$meta['customer_name'] = (string) $name;
				$meta['first_name']    = $name->get_first_name();
				$meta['last_name']     = $name->get_last_name();
			}
		}

		$billing_address = $payment->get_billing_address();

		if ( null !== $billing_address ) {
			// Deprecated meta values.
			$meta['address']          = $billing_address->get_line_1();
			$meta['zip']              = $billing_address->get_postal_code();
			$meta['city']             = $billing_address->get_city();
			$meta['country']          = $billing_address->get_country_name();
			$meta['telephone_number'] = $billing_address->get_phone();
		}

		// Consumer.
		$consumer_bank_details = $payment->get_consumer_bank_details();

		if ( null !== $consumer_bank_details ) {
			// Deprecated meta values.
			$meta['consumer_name']           = $consumer_bank_details->get_name();
			$meta['consumer_account_number'] = $consumer_bank_details->get_account_number();
			$meta['consumer_iban']           = $consumer_bank_details->get_iban();
			$meta['consumer_bic']            = $consumer_bank_details->get_bic();
			$meta['consumer_city']           = $consumer_bank_details->get_city();
		}

		return $meta;
	}
}