<?php
//$requestUri = $_SERVER['REQUEST_URI'];
//$parts = explode('/', trim($requestUri, '/'));
$id = $_GET['id'];//end($parts);
//echo $id;


$enqURL="https://openapiuat.airtel.africa/standard/v1/payments/".$id; 

$authURL="https://openapiuat.airtel.africa/auth/oauth2/token";

$clientID="94351d4d-4909-4056-ad9d-8052a332d6b9";
$clientSecret="bf665590-2519-49af-8d1f-7cd0dce1dc7a";

//CONTINENTAL CAPITAL
$clientID="9ff18a6d-331e-4ec5-9ecc-4e512e13747c";
$clientSecret="40f44254-10e7-4eb8-b161-38125117f4ba";

$res=authenticate($authURL, $clientID, $clientSecret);

if($res['success']){
	$bearerToken=$res['token'];
	
	//enquire trans status
	$res=trans_enquiry($enqURL,$bearerToken);
	
	echo $res;
	exit();
	$data = json_decode($res, true);

	// Check if the response has a status and success flag  
	if (isset($data['status']['success']) && $data['status']['success'] === true) {
		// Success case
		$transactionId = $data['data']['transaction']['id'];
		$transactionStatus = $data['data']['transaction']['status'];
		$message = $data['status']['message'];

		echo "✅ Transaction Successful!\n";
		echo "Transaction ID: $transactionId\n";
		echo "Status: $transactionStatus\n";
		echo "Message: $message\n"; 
	} else {
		// Failure case
		$errorCode = $data['status']['result_code'] ?? 'N/A';
		$errorMessage = $data['status']['message'] ?? 'Unknown error';
		
		echo "❌ Transaction Failed!\n";
		echo "Error Code: $errorCode\n";
		echo "Message: $errorMessage\n";
	}
	
	
}else{
	echo(print_r($res,true));
	exit();
}


function trans_enquiry($enqURL,$token){
	$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => $enqURL,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'GET',
  CURLOPT_HTTPHEADER => array(
    'Authorization:'.$token,
    'Accept: */* ',
	'X-Country: MW',
	'X-Currency: MWK'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
return $response;
}

function authenticate($baseURL, $wallet, $password)
{
    // JSON payload
    $postData = json_encode([
        'client_id' => $wallet,
        'client_secret' => $password,
		'grant_type' => "client_credentials"
    ]);

    // Initialize cURL
    $ch = curl_init($baseURL);

    // Set cURL options
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Return the response
    curl_setopt($ch, CURLOPT_POST, true);           // Use POST method
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);// Set the request body
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Content-Type: application/json',
        'Content-Length: ' . strlen($postData)
    ]);

    // Execute the request
    $response = curl_exec($ch);

    // Check for cURL errors
    if (curl_errno($ch)) {
        curl_close($ch);
        return [
            'success' => false,
            'error' => 'Curl error: ' . curl_error($ch)
        ];
    }

    // Get HTTP status code
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    // Decode JSON response
    $result = json_decode($response, true);

    // Check if token is present
    if ($httpCode === 200 && isset($result['access_token'])) {
        return [
            'success' => true,
            'token' => $result['access_token']
        ];
    } else {
        return [
            'success' => false,
            'error' => $result['error_description'] ?? 'Unknown error',
            'details' => $result['error'] ?? []
        ];
    }
}


?>