<?php

class APPMAKER_WC_Dynamic_form {
	static $customer = false;
	static $_instance = false;
	private $response = array( "items" => array(), "order" => array(), "dependencies" => array() );

	public function __construct() {
		if ( self::$customer == false && get_current_user_id() != false ) {
			self::$customer = get_userdata( get_current_user_id() );
		}
	}

	static function get_fields( $fields, $section ) {
		$form = new APPMAKER_WC_Dynamic_form();
		foreach ( $fields as $key => $field ) {
			$form->add_field( $field, $key, $section );
		}

		return apply_filters( 'appmaker_wc_dynamic_form_response', $form->response, $fields, $section );
	}

	private function add_field( $args, $key, $section ) {
		if ( isset( $args['label'] ) ) {
			$args['label'] = strip_tags( $args['label'] );
		}

		$this->response["items"][ $key ] = array();
		$defaults                        = array(
			'type'          => 'text',
			'dependent'     => false,
			'id'            => $key,
			'label'         => '',
			'description'   => '',
			'placeholder'   => '',
			'maxLength'     => null,
			'minLength'     => null,
			'required'      => false,
			'options'       => array(),
			'validate'      => array(),
			'default_value' => '',
			'line_count'    => 4
		);

		if ( isset( $args['type'] ) && ! empty( $args['type'] ) ) {
			$args['type'] = preg_replace( '/wooccm/', '', $args['type'] );
		}
		if ( isset($args['type']) && $args['type'] === "select" ) {
			if ( isset( $args['options'] ) && is_string( $args['options'] ) ){
				$options = explode( '||', $args['options'] );
				$args['options'] = array();
				foreach($options as $val) $args['options'][$val]=$val;
			}
		}

		$this->response["items"][ $key ] = apply_filters( "appmaker_wc_field_args", wp_parse_args( $args, $defaults ), $args, $key, $section );

		if ( empty( $this->response["items"][ $key ]['label'] ) && ! empty( $this->response["items"][ $key ]['placeholder'] ) ) {
			$this->response["items"][ $key ]['label'] = $this->response["items"][ $key ]['placeholder'];
		}

		$this->response["items"][ $key ]['required'] = ( $this->response["items"][ $key ]['required'] === 1 || $this->response["items"][ $key ]['required'] === '1' || $this->response["items"][ $key ]['required'] === true || $this->response["items"][ $key ]['required'] === 'true' ) ? true : false;

		if ( $this->response["items"][ $key ]['type'] == "country" ) {
			$this->response["items"][ $key ]['type']    = "select";
			$this->response["items"][ $key ]['options'] = ( $key == 'shipping_country' ) ? WC()->countries->get_shipping_countries() : WC()->countries->get_allowed_countries();
		}

		if ( $this->response["items"][ $key ]['type'] == "state" ) {
			$this->response["items"][ $key ]['dependent'] = true;
			$this->response["items"][ $key ]['type']      = "dependent-select";
			$this->response["items"][ $key ]['options']   = ( $key == 'shipping_state' ) ? $this->get_shipping_country_states() : $this->get_billing_country_states();

			$this->response["dependencies"][ $key ] = array(
				"on"      => $section . "_country",
				"onEmpty" => array(
					"id" => $key . "_text"
				)
			);

			$args["type"] = "text";;
			$args["dependent"] = true;
			$this->add_field( $args, $key . "_text", $section );
		}

		if ( $this->response["items"][ $key ]['type'] == "multiselect" ) {
			$this->response["items"][ $key ]['id'] = $key . '[]';
		}

		if ( get_current_user_id() != 0 ) {
			$value = $this->get_user_value( $key );
			if ( $value != null && $value !== 'null') {
				$this->response["items"][ $key ]['default_value'] = $value;
			} else {
				$this->response["items"][ $key ]['default_value'] = ( isset( $this->response["items"][ $key ]['default'] ) && ! is_null( $this->response["items"][ $key ]['default'] ) && $this->response["items"][ $key ]['default'] != 'null' ) ? $this->response["items"][ $key ]['default'] : '';
			}
		} elseif ( isset( $this->response["items"][ $key ]['default'] ) && ! is_null( $this->response["items"][ $key ]['default'] ) && $this->response["items"][ $key ]['default'] != 'null' ) {
			$this->response["items"][ $key ]['default_value'] = $this->response["items"][ $key ]['default'];
		}

		if ( $this->response["items"][ $key ]['type'] == "checkbox" ) {
			$this->response["items"][ $key ]['default_value'] = "";
		}else {
			$this->response["items"][ $key ]['default_value'] = (string) $this->response["items"][ $key ]['default_value'];
		}

		$this->response["items"][ $key ] = array_diff_key( $this->response["items"][ $key ], array_flip( array(
			'class',
			'default',
			'autocomplete',
			'clear'
		) ) );
		if ( ! empty( $this->response["items"][ $key ]['validate'] ) && in_array( "email", $this->response["items"][ $key ]["validate"] ) ) {
			$this->response["items"][ $key ]["validate"]     = array(
				"type"    => 'email',
				"message" => __( 'Please provide a valid email address.', 'woocommerce' ),
				"regex"   => ""
			);
			$this->response["items"][ $key ]["keyboardType"] = 'email-address';

		} elseif ( ! empty( $this->response["items"][ $key ]['validate'] ) && in_array( "phone", $this->response["items"][ $key ]["validate"] ) ) {
			$this->response["items"][ $key ]["validate"]     = array(
				"type"    => 'regex',
				"message" => __( 'Please enter a valid Phone.', 'appmaker_app' ),
				"regex"   => ""
			);
			$this->response["items"][ $key ]["keyboardType"] = 'phone-pad';
		} elseif ( ! empty( $this->response["items"][ $key ]['validate'] ) && in_array( "postcode", $this->response["items"][ $key ]["validate"] ) && ! in_array( 'GB', array_keys( WC()->countries->get_allowed_countries() ) ) ) {
			$this->response["items"][ $key ]["keyboardType"] = 'numeric';
		} elseif ( empty( $this->response["items"][ $key ]['validate'] ) || ! ( isset( $this->response["items"][ $key ]["validate"]["type"] ) && isset( $this->response["items"][ $key ]["validate"]["message"] ) && isset( $this->response["items"][ $key ]["validate"]["regex"] ) ) ) {
			$this->response["items"][ $key ]["validate"] = array();
		}
		//	$this->response["items"][ $key ]['required'] = false;
		$this->response["order"][] = $key;
		$this->add_field_dependencies( $key );
	}

	public function get_shipping_country_states() {
		$countries = WC()->countries->get_shipping_countries();
		$states_c  = WC()->countries->get_shipping_country_states();

		return apply_filters( "appmaker_wc_allowed_countries", $this->prepare_state_response( $countries, $states_c ) );
	}

	public function prepare_state_response( $countries, $states_c ) {
		$return = array();
		foreach ( $countries as $key => $country ) {
			$return[ $key ] = array( "items" => array() );
			if ( isset( $states_c[ $key ] ) && is_array( $states_c[ $key ] ) ) {
				foreach ( $states_c[ $key ] as $state_key => $state ) {
					$return[ $key ]["items"][ $state_key ] = html_entity_decode( $state );
				}
			}
			if ( empty( $return[ $key ]["items"] ) ) {
				$return[ $key ]["items"] = null;
			}
		}

		return apply_filters( 'appmaker_wc_states_response', $return );
	}

	public function get_billing_country_states() {
		$countries = WC()->countries->get_allowed_countries();
		$states_c  = WC()->countries->get_allowed_country_states();

		return apply_filters( "appmaker_wc_allowed_countries", $this->prepare_state_response( $countries, $states_c ) );
	}

	public function get_user_value( $key ) {
		$return = null;
		if ( isset( self::$customer->{$key} ) && self::$customer->{$key} ) {
			$return = self::$customer->{$key};
		} elseif ( $key == "billing_email" || $key == "shipping_email" && ! empty( self::$customer->user_email ) ) {
			$return = self::$customer->user_email;
		} elseif ( $key == "billing_first_name" || $key == "shipping_first_name" && ! empty( self::$customer->user_firstname ) ) {
			$return = self::$customer->user_firstname;
		} elseif ( $key == "billing_last_name" || $key == "shipping_last_name" && ! empty( self::$customer->user_firstname ) ) {
			$return = self::$customer->user_lastname;
		}

		return apply_filters( 'appmaker_wc_form_user_value', $return, $key );
	}

	public function add_field_dependencies( $key ) {
		$dependency = apply_filters( 'appmaker_wc_dependency_' . $key, false, $key );
		if ( $dependency != false ) {
			$this->response["dependencies"][ $key ] = $dependency;
			$this->response["items"][ $key ]['dependent'] = true;
		}
	}

}