<?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"]) &&
            count(array_intersect(array('US', 'CR', 'NL', 'BN', 'IE', 'SO', 'MT', 'GB', 'AR', 'KZ', 'JM', 'PE', 'SZ',), array_keys(WC()->countries->get_allowed_countries()))) < 1
        ) {
            $this->response["items"][$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;
        }
    }

}