<?php

namespace App\KommaApp\WeFact;

class WeFactAPI
{

    const DEBTOR_CONTROLLER = 'debtor';
    const PRODUCT_CONTROLLER = 'product';
    const SUBSCRIPTION_CONTROLLER = 'subscription';
    const GROUP_CONTROLLER = 'group';
    const INVOICE_CONTROLLER = 'invoice';

	private $url;
	private $apiKey;
	
	function __construct(){
		$this->url			 = config('services.weFact.url');
		$this->apiKey		 = config('services.weFact.key');
	}

    /**
     * @param $controller
     * @param $action
     * @param $params
     * @return array|mixed
     */
	public function sendRequest($controller, $action, $params){
		
		if(is_array($params)){
			$params['api_key'] 		= $this->apiKey;
			$params['controller'] 	= $controller;
			$params['action'] 		= $action;
		}
		
		$ch = curl_init();
		curl_setopt($ch,CURLOPT_URL, $this->url);

        // Never skip SSL verification for production mode.
		//curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
		//curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_TIMEOUT,'30');
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
		$curlResp = curl_exec($ch);
		$curlError = curl_error($ch);

		if ($curlError != ''){
			$result = array(
				'controller' => 'invalid',
				'action' => 'invalid',
				'status' => 'error',
				'date' => date('c'),
				'errors' => array($curlError)
			);
		}
		elseif(curl_getinfo($ch, CURLINFO_HTTP_CODE) == 403)
		{
			$result = array(
				'controller' => 'invalid',
				'action' => 'invalid',
				'status' => 'error',
				'date' => date('c'),
				'errors' => array($curlResp)
			);
		}
		else
		{
			$result = json_decode($curlResp, true);
		}
		
		return $result;
	}

    /**
     * Convert the weFact stringed price to a cent-based integer
     *
     * @param  string  $price
     * @return int
     */
    public static function convertWeFactPrice(string $price): int
    {
        $price = (float) $price; // Convert from string to float
        $price *= 100; // Convert to cents
        $price = (int) $price; // Convert to integer
        return $price;
    }

    /**
     * Convert the incl vat price in cent to price excl in euros
     *
     * @param  int $price
     * @param  int $taxPercentage
     * @return float
     */
    public static function convertPriceInclToExcl(int $price, int $taxPercentage): float
    {
        $priceExclInCent = (int) round($price / (100 + $taxPercentage) * 100);
        return $priceExclInCent / 100;
    }

    /**
     * Convert WeFact excluding vat price directly into including vat price
     *
     * @param  string  $price
     * @param  int  $taxPercentage
     * @return int
     */
    public static function convertPriceExclToIncl(string $price, int $taxPercentage)
    {
        $priceExcl = self::convertWeFactPrice($price);
        $priceIncl = (int) round( $priceExcl / 100 * (100 + $taxPercentage));
        return $priceIncl;
    }
}