<?php

namespace Codacy\Coverage\Util;

/**
 * Class ApiClient
 * @author Jakob Pupke <jakob.pupke@gmail.com>
 */
class CodacyApiClient
{

    function __construct($baseUrl, $projectToken)
    {
        $this->baseUrl = $baseUrl;
        $this->projectToken = $projectToken;
    }

    /**
     * @param string $commit commit uuid
     * @param string $data the JSON data
     *
     * @return string      success message
     *
     * @throws \Exception   when remote server response
     */
    public function sendCoverage($commit, $data)
    {
        $tempCertFile = $this->dumpCertificateBundle();

        $url = $this->baseUrl . "/2.0/coverage/" . $commit . "/php";

        $curl = curl_init($url);

        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt(
            $curl, CURLOPT_HTTPHEADER,
            array(
                "Content-type: application/json",
                "project_token: " . $this->projectToken
            )
        );
        curl_setopt($curl, CURLOPT_CAINFO, $tempCertFile); 
        curl_setopt($curl, CURLOPT_POST, true);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

        $json_response = curl_exec($curl);

        unlink($tempCertFile);

        $status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

        if ($status < 200 || $status > 201) {
            throw new \Exception(
                sprintf("Error: call to URL %s failed with status %s, response %s, curl_error %u",
                    $url, $status, $json_response, curl_error($curl), curl_errno($curl)
                )
            );
        }

        curl_close($curl);

        $json = json_decode($json_response, true);

        if (isset($json['success']) || array_key_exists('success', $json)) {
            return $json['success'];
        } else {
            return $json['error'];
        }
    }

    /**
     * Store certificate bundle to temporary file to be available when used within phar context
     * 
     * @return string Full qualified path to temporary file
     */
    protected function dumpCertificateBundle()
    {
        $tempCertFile = tempnam(sys_get_temp_dir(), 'cacert');

        copy(dirname(__FILE__) . '/cacert.pem', $tempCertFile);

        return $tempCertFile;
    }
}