<?php

namespace App\Http\Controllers;

use App\Models\Payment;
use Illuminate\Http\Request;
use App\Models\User;
use App\Models\PaymentType;
use App\Models\DetailPayment;
use Inertia\Inertia;
use App\Services\cekDenda;
use App\Services\GenerateMonthlyBill;
use Illuminate\Support\Facades\DB;
use Exception;
use Illuminate\Support\Facades\Log;

class PaymentController extends Controller
{
    public function indexManualPayment(cekDenda $cekDenda, GenerateMonthlyBill $generateMonthlyBill)
    {
        $penalty = $cekDenda->applyPenalty();
        $bill = $generateMonthlyBill->generateAutoBill();

        $paymentType = PaymentType::pluck('payment_type');
        $nominal = PaymentType::pluck('nominal');

        $paymentPenalties = DetailPayment::with('paymentType')
            ->get()
            ->pluck('penalty', 'type_id');

        $santri = User::with([
            'payments.detailPayments.paymentType',
        ])->paginate(2);

        return Inertia::render('list-admin/payment/ManualPayment', [
            'santri' => $santri->items(),
            'penalty' => $penalty,
            'bill' => $bill,
            'fields' => [
                'nis' => ['type' => 'text', 'readonly' => true],
                'nama' => ['type' => 'text', 'readonly' => true],
                'status_santri' => ['type' => 'text', 'readonly' => true],
            ],
            'options' => [
                'payment_type' => $paymentType,
                'payment_nominal' => $nominal,
                'payment_penalty' => $paymentPenalties
            ]
        ]);
    }

    public function manualPayment(Request $request, $paymentId)
    {
        try {
            DB::beginTransaction();

            $range = (int) $request->input('range');
            $userId = $request->id;
            $typeId = $request->input('type_id');

            $existingPayment = Payment::where('user_id', $userId)
                ->where('payment_status', 'pending')
                ->first();

            $unpaidDetails = $existingPayment
                ? DetailPayment::where('payment_id', $existingPayment->id)
                ->where('status', 'unpaid')
                ->orderBy('payment_year')
                ->orderBy('payment_month')
                ->get()
                : collect();

            if ($existingPayment && $unpaidDetails->count() > 0) {
                $totalAmount = 0;
                $toPay = $unpaidDetails->take($range);
                $jumlahUnpaid = $toPay->count();

                foreach ($toPay as $detail) {
                    $nominal = PaymentType::where('id', $detail->type_id)->value('nominal') ?? 0;
                    $penalty = $detail->penalty ?? 0;
                    $total = $nominal + $penalty;

                    $detail->update([
                        'status' => 'paid',
                        'amount' => $nominal,
                        'penalty' => $penalty,
                    ]);

                    $totalAmount += $total;
                }

                $sisa = $range - $jumlahUnpaid;
                $bulan = $unpaidDetails->last()?->payment_month ?? now()->month;
                $tahun = $unpaidDetails->last()?->payment_year ?? now()->year;

                for ($i = 0; $i < $sisa; $i++) {
                    $bulan++;
                    if ($bulan > 12) {
                        $bulan = 1;
                        $tahun++;
                    }

                    $nominal = PaymentType::where('id', $typeId)->value('nominal') ?? 0;

                    DetailPayment::create([
                        'payment_id' => $existingPayment->id,
                        'payment_month' => $bulan,
                        'payment_year' => $tahun,
                        'amount' => $nominal,
                        'penalty' => 0,
                        'status' => 'paid',
                        'type_id' => $typeId,
                    ]);

                    $totalAmount += $nominal;
                }

                $existingPayment->update([
                    'amount_payment' => DetailPayment::where('payment_id', $existingPayment->id)->sum('amount'),
                    'payment_status' => DetailPayment::where('payment_id', $existingPayment->id)->where('status', 'unpaid')->exists() ? 'pending' : 'success',
                ]);

                DB::commit();
                return redirect()->back()->with('success', 'Pembayaran berhasil menggunakan data existing');
            }

            $newPayment = Payment::create([
                'payment_status' => 'success',
                'amount_payment' => 0,
                'bank' => null,
                'no_va' => null,
                'expired_at' => null,
                'user_id' => $userId,
            ]);

            $bulan = now()->month;
            $tahun = now()->year;
            $nominal = PaymentType::where('id', $typeId)->value('nominal') ?? 0;
            $totalAmount = 0;

            for ($i = 0; $i < $range; $i++) {
                DetailPayment::create([
                    'payment_id' => $newPayment->id,
                    'payment_month' => $bulan,
                    'payment_year' => $tahun,
                    'amount' => $nominal,
                    'penalty' => 0,
                    'status' => 'paid',
                    'type_id' => $typeId,
                ]);

                $totalAmount += $nominal;

                $bulan++;
                if ($bulan > 12) {
                    $bulan = 1;
                    $tahun++;
                }
            }

            $newPayment->update([
                'amount_payment' => $totalAmount,
            ]);

            DB::commit();
            dd($newPayment);
            return redirect()->back()->with('success', 'Pembayaran baru berhasil dibuat');
        } catch (Exception $e) {
            DB::rollBack();
            return dd('Error:', $e->getMessage());
        }
    }
}