<?php namespace Avans\parts;

class coupons
{
    private $data;

    public function __construct(array $data)
    {
        $this->data = $data;
    }

    public function create($data)
    {
        $status = false;
        $code = '';

        do {
            $code = $this->generate_code((int)$data['char'],$data['prefix'], $data['suffix']);
            if ($this->is_valid_coupon($code)) {
                $status = true;
            };
        } while (!$status);
        $this->insert_coupon($code);

        return $code;
    }

    private function generate_code(int $char, string $prefix = null, string $suffix = null)
    {
        $coupon_code = wp_generate_password($char, false);
        if (isset($prefix)) {
            $coupon_code = $prefix.$coupon_code;
        }
        if (isset($suffix)) {
            $coupon_code = $coupon_code.$suffix;
        }
        return $coupon_code;
    }

    private function is_valid_coupon($coupon_code)
    {
        global $wpdb;
        $sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type = 'shop_coupon' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1;", $coupon_code);
        if (empty($wpdb->get_var($sql))) {
            return true;
        }
        return false;
    }

    private function insert_coupon($code)
    {
        $arg = array(
            'post_title'   => $code,
            'post_content' => '',
            'post_status'  => 'publish',
            'post_author'  => 1,
            'post_type'    => 'shop_coupon'
        );
        $coupon_id = wp_insert_post($arg);
        $this->set_meta_coupon($coupon_id);
    }

    private function set_meta_coupon($coupon_id)
    {
        if (!empty($this->data['include_product']) && isset($this->data['include_product'])) {
            $product_ids = implode(',', $this->data['include_product']);
            update_post_meta($coupon_id, 'product_ids', $product_ids);
        }

        if (!empty($this->data['exclude_product']) && isset($this->data['exclude_product'])) {
            $product_ids = implode(',', $this->data['exclude_product']);
            update_post_meta($coupon_id, 'exclude_product_ids', $product_ids);
        }

        if (!empty($this->data['include_category']) && isset($this->data['include_category'])) {
            update_post_meta($coupon_id, 'product_categories', $this->data['include_category']);
        }
        
        if (!empty($this->data['exclude_category']) && isset($this->data['exclude_category'])) {
            update_post_meta($coupon_id, 'exclude_product_categories', $this->data['exclude_category']);
        }
    
        if (!empty($this->data['email']) && isset($this->data['email'])) {
            update_post_meta($coupon_id, 'customer_email', $this->data['email']);
        }

        if (!empty($this->data['type']) && isset($this->data['type'])) {
            update_post_meta($coupon_id, 'discount_type', $this->data['type']);
        }

        
        if ( !empty($this->data['min_price']) && isset($this->data['min_price']) ) {
            update_post_meta($coupon_id, 'minimum_amount', $this->data['min_price']);
        }

        if ( !empty($this->data['max_price']) && isset($this->data['max_price']) ) {
            update_post_meta($coupon_id, 'maximum_amount', $this->data['max_price']);
        }

        if ( !empty($this->data['max_discount']) && isset($this->data['max_discount']) ) {
            update_post_meta($coupon_id, 'max_discount', $this->data['max_discount']);
        }

         if(!empty($this->data['exclude_sale_product']) && isset($this->data['exclude_sale_product']) && $this->data['exclude_sale_product']){
            update_post_meta($coupon_id, 'exclude_sale_items', 'yes');
        }


        update_post_meta($coupon_id, 'free_shipping', 'no');
        update_post_meta($coupon_id, 'coupon_amount', $this->data['amount']);
        update_post_meta($coupon_id, 'individual_use', 'yes');
        update_post_meta($coupon_id, 'expiry_date', $this->get_expire_date());
        update_post_meta($coupon_id, 'usage_limit', '1');
        update_post_meta($coupon_id, 'apply_before_tax', 'yes');

        update_post_meta($coupon_id, 'admin_coupons_enabled_for_vendor', 'yes');
        update_post_meta($coupon_id, 'coupon_commissions_type', 'default');
        update_post_meta($coupon_id, 'admin_shared_coupon_type', 'percentage');    
    }

    private function get_expire_date()
    {
        return  date('Y-m-d', strtotime('+'.$this->data['expire_date'].' days'));
    }
}