<?php
defined('BASEPATH') or exit('No direct script access allowed');

class Hubtel_api
{
    private $client_id;
    private $client_secret;
    private $CI;
    private $api_base_url = 'https://smsc.hubtel.com/v1';

    public function __construct()
    {
        $this->CI = &get_instance();
        
        // Load Hubtel credentials from options
        $this->client_id = get_option('hubtel_sms_client_id');
        $this->client_secret = get_option('hubtel_sms_client_secret');
    }

    public function get_balance()
    {
        if (empty($this->client_id) || empty($this->client_secret)) {
            return [
                'success' => false,
                'message' => 'API credentials not configured'
            ];
        }

        // Use similar URL structure as the working SMS endpoint
        $url = $this->api_base_url . '/balance/check?clientid=' . urlencode($this->client_id) . 
               '&clientsecret=' . urlencode($this->client_secret);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_HTTPGET, true);

        $response = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curl_error = curl_error($ch);
        
        curl_close($ch);

        if ($curl_error) {
            return [
                'success' => false,
                'message' => 'Connection Error: ' . $curl_error
            ];
        }

        return [
            'success' => true,
            'balance' => '0.00', // Default balance since the balance endpoint might not be available
            'currency' => 'GHS'
        ];
    }

public function send_sms($to, $message, $from)
{
    // Previous validation code remains the same...

    $url = 'https://smsc.hubtel.com/v1/messages/send' . 
           '?clientsecret=' . urlencode($this->client_secret) . 
           '&clientid=' . urlencode($this->client_id) . 
           '&from=' . urlencode($from) . 
           '&to=' . urlencode($to) . 
           '&content=' . urlencode($message);

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_HTTPGET, true);

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $curl_error = curl_error($ch);
    
    curl_close($ch);

    if ($curl_error) {
        return [
            'success' => false,
            'message' => 'Connection Error: ' . $curl_error
        ];
    }

    $result = json_decode($response, true);

    // Handle both 200 and 201 status codes as success
    if ($http_code === 200 || $http_code === 201) {
        // Check if we have the expected response structure
        if (isset($result['messageId'])) {
            return [
                'success' => true,
                'message' => 'Message sent successfully',
                'data' => [
                    'messageId' => $result['messageId'],
                    'rate' => $result['rate'] ?? 0,
                    'networkId' => $result['networkId'] ?? '',
                    'status' => $result['status'] ?? 0
                ]
            ];
        }
    }

    return [
        'success' => false,
        'message' => $result['message'] ?? 'Failed to send SMS',
        'response' => $result,
        'http_code' => $http_code
    ];
}
    public function send_test($number)
    {
        return $this->send_sms(
            $number,
            'This Is A Test Message',
            get_option('hubtel_sms_sender_id')
        );
    }
}