<?php 

namespace App\Library\MpambaTnm;

class MpambaPush {

    public function sendUSSDPush($baseURL, $token, $invoiceNumber, $amount, $msisdn, $description) {
        // Endpoint
        $url = rtrim($baseURL, "/") . "/invoices";

        // Prepare payload
        $data = [
            "invoice_number" => $invoiceNumber,
            "amount" => (int)$amount,
            "msisdn" => $msisdn,
            "description" => $description
        ];

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

        // Set cURL options
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            "Authorization: Bearer " . $token,
            "Content-Type: application/json"
        ]);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

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

        // Check for cURL errors
        if (curl_errno($ch)) {
            echo "cURL Error: " . curl_error($ch);
            curl_close($ch);
            return false;
        }

        // Close connection
        curl_close($ch);

        // Decode and return response
        return json_decode($response, true);
    }

    public function changePassword($baseURL, $token,$newPassword, $newPasswordConfirmation) {
        // Endpoint URL
        $url = rtrim($baseURL, "/") . "/password";

        // Prepare data
        $data = [
            "new_password" => $newPassword,
            "new_password_confirmation" => $newPasswordConfirmation
        ];

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

        // Set cURL options
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PATCH"); // PATCH request
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            "Authorization: Bearer " . $token,
            "Content-Type: application/json"
        ]);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

        // Execute and capture response
        $response = curl_exec($ch);

        // Check for errors
        if (curl_errno($ch)) {
            echo "cURL Error: " . curl_error($ch);
            curl_close($ch);
            return false;
        }

        // Close connection
        curl_close($ch);

        // Decode JSON response
        return json_decode($response, true);
    }

    public  function validate_msisdn($baseURL, $msisdn, $bearerToken){
        // Ensure proper endpoint format
        $url = rtrim($baseURL, '/') . '/payments/validate/' . urlencode($msisdn);

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

        // Set cURL options
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPGET, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            'Authorization: Bearer ' . $bearerToken,
            'Accept: application/json'
        ]);

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

        // Handle cURL error
        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);

        if ($httpCode === 200 && isset($result['data']['full_name'])) {
            return [
                'success' => true,
                'full_name' => $result['data']['full_name']
            ];
        } else {
            return [
                'success' => false,
                'error' => $result['message'] ?? 'Unknown error',
                'details' => $result['errors'] ?? []
            ];
        }
    }

    public function authenticate($baseURL, $wallet, $password){
        // Endpoint URL
        $url = rtrim($baseURL, '/') . '/authenticate';

        // JSON payload
        $postData = json_encode([
            'wallet' => $wallet,
            'password' => $password
        ]);

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

        // 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['data']['token'])) {
            return [
                'success' => true,
                'token' => $result['data']['token'],
                'expires_at' => $result['data']['expires_at']
            ];
        } else {
            return [
                'success' => false,
                'error' => $result['message'] ?? 'Unknown error',
                'details' => $result['errors'] ?? []
            ];
        }
    }
    
}
?>