<?php

/**
 * Represents the INWX API.
 *
 * @link https://www.inwx.at/en/help/apidoc JSON-RPC API documentation
 */
class Inwx {
    private string $apiUrl = 'https://api.domrobot.com/jsonrpc/';
    private string $username;
    private string $password;

    /**
     * Inwx constructor.
     *
     * @param string $username
     * @param string $password
     */
    public function __construct(string $username, string $password) {
        $this->username = $username;
        $this->password = $password;
    }

    /**
     * Get the list of contacts.
     *
     * @param int $pageLimit
     * @return array
     * @throws Exception
     */
    public function contactList(int $pageLimit = 300): array {
        $requestData = array(
            'jsonrpc' => '2.0',
            'method' => 'contact.list',
            'params' => array(
                'user' => $this->username,
                'pass' => $this->password,
                'pagelimit' => $pageLimit,
            ),
            'id' => 1
        );

        return $this->makeRequest($requestData)['contact'];
    }

    /**
     * Get the list of domains.
     *
     * @param int $pageLimit
     * @return array
     * @throws Exception
     */
    public function domainList(int $pageLimit = 300): array {
        $requestData = array(
            'jsonrpc' => '2.0',
            'method' => 'domain.list',
            'params' => array(
                'user' => $this->username,
                'pass' => $this->password,
                'pagelimit' => $pageLimit,
            ),
            'id' => 1
        );

        return $this->makeRequest($requestData)['domain'];
    }

    /**
     * Check if a domain is available.
     *
     * @param string $domain
     * @param string $tld
     * @return array
     * @throws Exception
     */
    public function domainCheck(string $domain): array {
        $requestData = array(
            'jsonrpc' => '2.0',
            'method' => 'domain.check',
            'params' => array(
                'user' => $this->username,
                'pass' => $this->password,
                'domain' => $domain
            ),
            'id' => 1
        );

        return $this->makeRequest($requestData);
    }

    /**
     * Get the price of a domain.
     *
     * @param string $domain
     * @param string $priceType reg | renewal | transfer | update | trade | restore
     * @return array
     * @throws Exception
     */
    public function domainGetDomainPrice(string $domain, string $priceType): array {
        $requestData = array(
            'jsonrpc' => '2.0',
            'method' => 'domain.getdomainprice',
            'params' => array(
                'user' => $this->username,
                'pass' => $this->password,
                'domain' => $domain,
                'pricetype' => $priceType,
            ),
            'id' => 1
        );

        return $this->makeRequest($requestData);
    }

    /**
     * Make a request to the INWX API.
     *
     * @param array $requestData
     * @return array
     * @throws Exception
     */
    private function makeRequest(array $requestData): array {
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $this->apiUrl);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($requestData));
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json',
            'Accept: application/json'
        ));

        $response = curl_exec($ch);

        if ($response === false) {
            throw new Exception('cURL Error: ' . curl_error($ch));
        }

        curl_close($ch);

        $responseData = json_decode($response, true);

        if (isset($responseData['error'])) {
            throw new Exception('JSON-RPC Error: ' . $responseData['error']['message']);
        }

        if (!isset($responseData['resData'])) {
            throw new Exception('Unexpected response format.');
        }

        return $responseData['resData'];
    }
}
?>