<?php

namespace App\Http\Controllers;
use App\Http\Requests;
use Illuminate\Http\Request;
use App\Models;
use App\Library\MpambaTnm;
use Carbon\Carbon;
use Config;
use Storage;

class MpambaTnmController extends Controller
{
    //
    public function collect(Requests\MpambaTnmRequest $request){
        
        /*
            //$incoming = file_get_contents("php://input");
            //$details = json_decode($incoming, true);
            $invoiceNumber = $details['invoiceNumber']; 
            $amount = $details['amount'];
            $msisdn = $details['msisdn']; 
            $description = $details['description'];
            {"message":"Request accepted and processing","errors":[],"trace":[],"data":[]}
        */


        $filename = "requests_" . date("Y-m-d") . ".txt";
        $logdata = date("Y-m-d H:i:s") . " - " . json_encode($request->all());
        Storage::disk('mpambatnm')->append($filename, $logdata);

        //todo
        // grab broker wallet detals 
        $wallet = Models\MpambaTnmWallet::where('wallet_id', $request->wallet_id)->first();
        if ($wallet == false) {
            // code...
            return response()->json(['code' => 3, 'msg' => 'Wallet Not found']);
        }
        $invoiceNumber = . $wallet->id . "_" . time();
        $description = "Stock purchase Payment from " . $wallet->name;
        // generate invoiceNumber
        // return response()->json(['code' => 1, 'data' => $wallet]);
        $baseURL = Config('mpambatnm.base_url'); // "https://devpayouts.tnmmpamba.co.mw/api";
        
        #$wallet = "505072";
        #$password = "N8O7L0vpl5mflfwHzf4DSle9bToV*";//CEDAR PASSWORD

        //$res=authenticate($baseURL, $wallet, $password);
        #$bearerToken = "102164|newoEd6QOFaTptUiGAp232jULtUmgMtaX1x2CRww4Ka2270dc49";
        $token_arr = $this->authenticate($baseURL, $wallet->wallet_id, $wallet->password);
        if ($token_arr['success'] == true) {
            $result = $this->sendUSSDPush($baseURL, $token_arr['token'], $invoiceNumber, $request->amount, $request->msisdn, $description);
            //create transaction here
            $filename = "ussd_push_responses_" . date("Y-m-d") . ".txt";
            $logdata = date("Y-m-d H:i:s") . " - " . json_encode($result);
            Storage::disk('mpambatnm')->append($filename, $logdata);
            $transaction_params = [
                'msisdn' => $request->msisdn,
                'amount' => $request->amount,
                'invoice_number' => $invoiceNumber,
                'wallet_id' => $wallet->wallet_id, 
                'reference_id' => $request->refID,
            ];
            $transaction = Models\TnmTransaction::create($transaction_params);
            return response()->json(['code' => 1, 'data' => $result]);
        }
    }

    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($ch);
        return json_decode($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'] ?? []
            ];
        }
    }
}