<?php

namespace OneTag\DTO;

if ( ! class_exists( 'OneTag\DTO\UserDataDTO' ) ) {
	class UserDataDTO {

		public $em;
		public $ph;
		public $ge;
		public $db;
		public $ln;
		public $fn;
		public $ct;
		public $st;
		public $zp;
		public $country;
		public $external_id;
		public $fbc;
		public $fbp;
		public $subscription_id;
		public $lead_id;
		public $fb_login_id;
		public $client_ip_address;
		public $client_user_agent;

		public function __construct() {
			if ( get_current_user_id() > 0 ) {
				$this->setExternalId( get_current_user_id() );
			}
			$this->setClientIpAddress( $this->getIp() )
				->setClientUserAgent( ! empty( $_SERVER['HTTP_USER_AGENT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) ) : null );

			if ( ! empty( $this->external_id ) ) {
				$this->autoFillData( $this->getUserMeta() );
			}
		}

		private function getUserMeta() {
			$meta = get_user_meta( $this->getExternalId() );

			foreach ( $meta as $k => $v ) {
				$meta[ $k ] = is_array( $v ) ? $v[0] : $v;
			}
			return $meta;
		}

		public function getExternalId() {
			return $this->external_id;
		}

		function getIp() {
			foreach ( array( 'HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR' ) as $key ) {
				if ( array_key_exists( $key, $_SERVER ) === true ) {
					foreach ( explode( ',', sanitize_text_field( wp_unslash( $_SERVER[ $key ] ) ) ) as $ip ) {
						$ip = trim( $ip );

						if ( filter_var( $ip, FILTER_VALIDATE_IP ) !== false ) {
							return $ip;
						}
					}
				}
			}
			return null;
		}

		/**
		 * @param string $em
		 */
		public function setEmail( $em ) {
			$this->em = $em;
			return $this;
		}

		/**
		 * @param string $ph
		 */
		public function setPhone( $ph ) {
			$this->ph = $ph;
			return $this;
		}

		/**
		 * @param string $ge
		 */
		public function setGender( $ge ) {
			$this->ge = $ge;
			return $this;
		}

		/**
		 * @param string $db
		 */
		public function setDateOfBirth( $db ) {
			$this->db = $db;
			return $this;
		}

		/**
		 * @param string $ln
		 */
		public function setLastName( $ln ) {
			$this->ln = $ln;
			return $this;
		}

		/**
		 * @param string $fn
		 */
		public function setFirstName( $fn ) {
			$this->fn = $fn;
			return $this;
		}

		/**
		 * @param string $ct
		 */
		public function setCity( $ct ) {
			$this->ct = $ct;
			return $this;
		}

		/**
		 * @param string $st
		 */
		public function setState( $st ) {
			$this->st = $st;
			return $this;
		}

		/**
		 * @param string $zp
		 */
		public function setZip( $zp ) {
			$this->zp = $zp;
			return $this;
		}

		/**
		 * @param string $country
		 */
		public function setCountry( $country ) {
			$this->country = $country;
			return $this;
		}

		/**
		 * @param string $external_id
		 */
		public function setExternalId( $external_id ) {
			$this->external_id = $external_id;
			return $this;
		}

		/**
		 * @param string $fbc
		 */
		public function setFbc( $fbc ) {
			$this->fbc = $fbc;
			return $this;
		}

		/**
		 * @param string $fbp
		 */
		public function setFbp( $fbp ) {
			$this->fbp = $fbp;
			return $this;
		}

		/**
		 * @param string $subscription_id
		 */
		public function setSubscriptionId( $subscription_id ) {
			$this->subscription_id = $subscription_id;
			return $this;
		}

		/**
		 * @param string $lead_id
		 */
		public function setLeadId( $lead_id ) {
			$this->lead_id = $lead_id;
			return $this;
		}

		/**
		 * @param string $fb_login_id
		 */
		public function setFbLoginId( $fb_login_id ) {
			$this->fb_login_id = $fb_login_id;
			return $this;
		}

		/**
		 * @param string $client_ip_address
		 */
		public function setClientIpAddress( $client_ip_address ) {
			$this->client_ip_address = $client_ip_address;
			return $this;
		}

		/**
		 * @param string $client_user_agent
		 */
		public function setClientUserAgent( $client_user_agent ) {
			$this->client_user_agent = $client_user_agent;
			return $this;
		}

		public function autoFillData( $postedData ) {
			$fields = array(
				'billing_first_name' => 'setFirstName',
				'billing_last_name'  => 'setLastName',
				'billing_city'       => 'setCity',
				'billing_phone'      => 'setPhone',
				'billing_state'      => 'setState',
				'billing_postcode'   => 'setZip',
				'billing_country'    => 'setCountry',
				'billing_email'      => 'setEmail',
			);

			foreach ( $fields as $fieldName => $method ) {
				if ( ! empty( $postedData[ $fieldName ] ) ) {
					$this->{$method}( $postedData[ $fieldName ] );
				} else {
					$fieldName = str_replace( 'billing_', '', $fieldName );
					if ( ! empty( $postedData[ $fieldName ] ) ) {
						$this->{$method}( $postedData[ $fieldName ] );
					}
				}
			}

			if ( empty( $this->em ) && ! empty( $this->external_id ) ) {
				$user_info = get_userdata( $this->external_id );

				if ( ! empty( $user_info->user_email ) ) {
					$this->setEmail( $user_info->user_email );
				}
			}
			return $this;
		}

		private function hash( $val ) {
			return hash( 'sha256', $val );
		}

		public function __toArray() {
			return array(
				'external_id'       => $this->external_id,
				'em'                => empty( $this->em ) ? null : $this->hash( $this->em ),
				'ph'                => empty( $this->ph ) ? null : $this->hash( $this->ph ),
				'ge'                => empty( $this->ge ) ? null : $this->hash( $this->ge ),
				'db'                => empty( $this->db ) ? null : $this->hash( $this->db ),
				'ln'                => empty( $this->ln ) ? null : $this->hash( $this->ln ),
				'fn'                => empty( $this->fn ) ? null : $this->hash( $this->fn ),
				'ct'                => empty( $this->ct ) ? null : $this->hash( $this->ct ),
				'st'                => empty( $this->st ) ? null : $this->hash( $this->st ),
				'zp'                => empty( $this->zp ) ? null : $this->hash( $this->zp ),
				'country'           => empty( $this->country ) ? null : $this->hash( $this->country ),
				'fbc'               => $this->fbc,
				'fbp'               => $this->fbp,
				'subscription_id'   => $this->subscription_id,
				'lead_id'           => $this->lead_id,
				'fb_login_id'       => $this->fb_login_id,
				'client_ip_address' => $this->client_ip_address,
				'client_user_agent' => $this->client_user_agent,
			);
		}
	}
}