<?php

namespace WebserviceBundle\Services;

class Webservice
{

    protected $serviceContainer;

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

    /**
     * @param string $webservice
     * @param array $params
     * @return array
     */
    public function getChoices($webservice, $params = array())
    {
        $choices = array();
        $results = $this->getArray($webservice, $params);
        foreach ($results as $row) {
            $choices[$row['name']] = $row['id'];
        }

        return $choices;
    }
    
    /**
     * @param string $webservice
     * @param array $params
     * @return array
     */
    public function getArray($webservice, $params = array())
    {
        $results = array();
        if ($this->serviceContainer->hasParameter($webservice)) {
            $url = $this->serviceContainer->getParameter($webservice);
            $url .= '?filters[qb-criteria]';
            foreach ($params as $param => $value) {
                $url .= "&filters[{$param}]=$value";
            }
            try {
                $results = json_decode(file_get_contents($url), true);
            } catch (\Exception $ex) {
                
            }
        }
        
        return $results;
    }

    /**
     * @param string $webservice
     * @param array $filters
     * @param array $order_by
     * @param integer $limit
     * @param integer $offset
     * @return array
     */
    public function getData($webservice, $filters = array(), $order_by = array(), $limit = null, $offset = null)
    {
        if ($this->serviceContainer->hasParameter($webservice)) {
            $url = $this->serviceContainer->getParameter($webservice) . "?";
            
            if($filters) {

                $url .= http_build_query(array('filters' => $filters));
            }
            
            if($order_by) {
                $url .= http_build_query(array('order_by' => $order_by));
            }
            
            if($limit) {
                $url .= "&limit={$limit}";
            }
            
            if($offset) {
                $url .= "&offset={$offset}";
            }

            $data = array();
            try {
                $data = json_decode(file_get_contents($url), true);
            } catch (\Exception $ex) {

            }

            //$data['url'] = $url;

            return $data;
        }

        return array();
    }

    /**
     * @param string $webservice
     * @param array $filters
     * @param array $order_by
     * @param integer $limit
     * @param integer $offset
     * @return array
     */
    public function putData($webservice, $id, $data)
    {
        if ($this->serviceContainer->hasParameter($webservice)) {
            $url = str_replace(".json", "/{$id}", $this->serviceContainer->getParameter($webservice));
            $data_string = json_encode($data);

            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");     
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json','Content-Length: '.strlen($data_string))); 
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

            try {
                $return = curl_exec($ch);
            } catch (\Exception $ex) {
                return array("error"=>"Connection Error.");
            }

            if($return) {
                return json_decode($return, true);
            } else {
                return array("error"=>"Transaction Error.");
            }
        }

        return array("error"=>"Webservice({$webservice}) not found.");
    }

}