<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class MpambaTnmCallbacksController extends Controller
{
    public function index(){
        /*
        Developer: David Kumwenda
        Contact: 0881161942 or 0996139030
        App: Mpamba 4 MSE
        Date: 30 August 2025
        Duration: 1 day dev work
        */
         

        // Read raw POST data
        #$rawData = file_get_contents("php://input");

        // Decode JSON
        #$data = json_decode($rawData, true);

        // Basic logging (optional, useful for debugging)
        #file_put_contents("logs/callback_log_" . date('Ymd') . '.txt', date("Y-m-d H:i:s") . " - " . $rawData . PHP_EOL, FILE_APPEND);
        
        $filename = "callback_log_" . date("Y-m-d") . ".txt";
        $logdata = date("Y-m-d H:i:s") . " - " . json_encode($request->all());
        Storage::disk('callbacks')->append($filename, $logdata);
        
        
        if (isset($request->receipt_number, $request->result_code, $request->transaction_id)) {
            
            $receiptNumber = $request["receipt_number"];
            $resultCode = $request["result_code"];
            $resultDescription = $request->["result_description"] ?? "";
            $resultTime = $request->["result_time"] ?? date("Y-m-d H:i:s");
            $transactionId = $request->["transaction_id"];
            $success = $request->["success"] ?? false;


            // Respond with 200 OK to acknowledge receipt
            http_response_code(200);
            echo json_encode(["status" => "callback received"]);

        } 
        else {
            // Missing required fields
            http_response_code(400);
            echo json_encode(["error" => "Invalid callback payload"]);
        }
            
    }
}