<?php

include_once 'lib/ghl/oauth2.php';
include_once 'config.php';
include_once 'project-model.php';


$config = MkdConfig::get_instance()->get_config();

$oauth = new GHLOAuth2($config);

class GHLCalendar {
    private $access_token;
    private $refresh_token;
    private $token_expiry;
    private $oauth;
    private $project_id;

    public function __construct($project_id, $access_token, $refresh_token) {
        $this->project_id = $project_id;
        $this->access_token = $access_token;
        $this->refresh_token = $refresh_token;
        $this->oauth = $GLOBALS['oauth'];
    }

    public function refreshToken() {
        $result = $this->oauth->refreshToken($this->refresh_token);


        if ($result['success']) {
            $this->access_token = $result['data']['access_token'];
            $this->refresh_token = $result['data']['refresh_token'] ?? $this->refresh_token;

            $projectModel = new ProjectModel();
            $projectModel->edit([
                'access_token' => $this->access_token,
                'refresh_token' => $this->refresh_token
            ], $this->project_id );

            return [
                'code' => 200,
                'message' => 'Access token refreshed successfully',
                'data' => $result['data']
            ];
        } else {
            return [
                'code' => 400,
                'message' => 'Error: ' . $result['error'] . '. Please authorize',
                'data' => null
            ];
        }
    }

    public function getFreeSlots($calendar_id, $start_date, $end_date) {
     

        $url = "https://services.leadconnectorhq.com/calendars/$calendar_id/free-slots?startDate=$start_date&endDate=$end_date";
        $headers = [
            "Accept: application/json",
            "Authorization: Bearer " . $this->access_token,
            "Version: 2021-04-15"
        ];

        // Initialize cURL session
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        // Execute cURL request
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); // Get the HTTP response code
        curl_close($ch);

        // Decode the response
        $responseData = json_decode($response, true);

        // Prepare the return array
        return [
            'code' => $httpCode,
            'message' => $responseData['message'] ?? 'Success', // Default message if not present
            'data' => $responseData
        ];
    }
}