<?php

namespace App\Http\Controllers\Staff;

use App\Exports\SimpleArrayExport;
use App\Http\Controllers\Controller;
use App\Http\Requests\ImportBulkPaymentRequest;
use App\Services\BulkPaymentImportService;
use Illuminate\Http\RedirectResponse;
use Illuminate\View\View;
use Maatwebsite\Excel\Facades\Excel;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

class BulkPaymentController extends Controller
{
    public function __construct(
        protected BulkPaymentImportService $bulkPaymentImportService,
    ) {
    }

    public function index(): View
    {
        $activeSchedules = $this->bulkPaymentImportService->activePaymentSchedules();
        $unpaidSchedules = $activeSchedules->whereIn('payment_status', ['belum_bayar', 'lewat']);
        $paidSchedules = $activeSchedules->whereIn('payment_status', ['dibayar', 'selesai']);

        return view('staff.bulk-payments-index', [
            'activeSchedules' => $activeSchedules,
            'activeAccountCount' => $activeSchedules->pluck('installment_application_id')->unique()->count(),
            'unpaidScheduleCount' => $unpaidSchedules->count(),
            'paidScheduleCount' => $paidSchedules->count(),
            'totalUnpaidAmount' => $unpaidSchedules->sum(fn ($schedule) => (float) $schedule->amount),
            'importResult' => session('bulk_payment_result'),
        ]);
    }

    public function downloadTemplate(): BinaryFileResponse
    {
        return Excel::download(
            new SimpleArrayExport(
                BulkPaymentImportService::HEADINGS,
                $this->bulkPaymentImportService->templateRows(),
            ),
            'template-kemaskini-bayaran-pukal.xlsx'
        );
    }

    public function store(ImportBulkPaymentRequest $request): RedirectResponse
    {
        $result = $this->bulkPaymentImportService->import($request->file('file'), $request->user());
        $message = 'Fail bayaran pukal selesai diproses. Berjaya: '.$result['success'].', gagal: '.$result['failed'].', diabaikan: '.$result['skipped'].'.';

        return redirect()
            ->route('staff.bulk-payments.index')
            ->with($result['failed'] > 0 ? 'warning' : 'success', $message)
            ->with('bulk_payment_result', $result);
    }
}