<?php
namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;
use Carbon\Carbon;

class BillplzTransactionSummaryController extends Controller
{
    public function index(Request $request)
    {
        $date = $request->selectedDate ?? Carbon::now()->toDateString();

        $transactionData = collect( Http::get(config('api.url_arrahn_portal') . '/api/billplz-transaction-review', ['date' => $date])->json() );
        
        $transactionData = $transactionData->filter(fn($x) => $x['arrahn_transactions'][0]['paid_at'] != null);
        
        $billIds = $transactionData->pluck('bill_id'); 
        $billplzBills = Http::get(config('api.url_arrahn_portal') . '/api/billplz', ['bill_ids' => json_encode($billIds)])->json();
        $billplzBills = array_map(function($bill) {
            $bill['paid_amount_formatted'] = floatval($bill['paid_amount']['amount']) / 100;
            return $bill;
        }, $billplzBills);
        
        $sumOfArrahnTransactions = $transactionData->sum(fn($x) => $x['arrahn_transactions'][0]['total_payment']);
        $sumOfBillplzTransactions = collect($billplzBills)->sum(fn($x) => $x['paid_amount_formatted']);
        $numberOfArrahnTransactions = $transactionData->count();
        
        $paymentGatewayCost = 'RM ' . number_format($sumOfBillplzTransactions - $sumOfArrahnTransactions, 2);
        $sumOfArrahnTransactions = 'RM ' . number_format($sumOfArrahnTransactions, 2);
        $sumOfBillplzTransactions = 'RM ' . number_format($sumOfBillplzTransactions, 2);
        
        if ($transactionData->count() !== count($billplzBills)) {
            throw new \Exception("The number of items in transactionData and billplzBills must be the same.");
        }
        
        $billPlzTransactionReview = $transactionData->zip($billplzBills)->map(function ($zippedItem) {
            [$transactionData, $billplzBill] = $zippedItem;
            
            $transactionData['billplz_bill'] = $billplzBill;
            
            return $transactionData;
        });
        
        
        return view('online.billplz-transaction-summary.index', compact( 'billPlzTransactionReview', 'sumOfArrahnTransactions', 'sumOfBillplzTransactions', 'paymentGatewayCost', 'numberOfArrahnTransactions', 'date'));
    }
    
}