<?php

namespace App\Services\User;

use App\Models\Administration;
use App\Models\User;
use App\Services\User\Contracts\UserServiceInterface;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Hash;

class UserService implements UserServiceInterface
{
    public function getDashboard(User $user, string $selectedMonth): LengthAwarePaginator
    {
        $startOfMonth = Carbon::parse($selectedMonth)->startOfMonth();
        $endOfMonth   = Carbon::parse($selectedMonth)->endOfMonth();

        return Administration::where('msnv', $user->msnv)
            ->whereBetween('date', [$startOfMonth, $endOfMonth])
            ->orderBy('date', 'desc')
            ->paginate(10)
            ->withQueryString();
    }

    public function getOtherActiveUsers(User $currentUser): Collection
    {
        return User::where('status', User::STATUS_ACTIVE)
            ->where('msnv', '!=', $currentUser->msnv)
            ->get();
    }

    public function sendThankcards(User $sender, string $receiverMsnv, int $amount): void
    {
        if ($sender->flag_send == User::FLAG_SEND_DISABLED) {
            throw new \RuntimeException(__('messages.error.no_send_permission'));
        }

        $receiver = User::where('msnv', $receiverMsnv)->first();
        if (!$receiver || $receiver->status != User::STATUS_ACTIVE) {
            throw new \RuntimeException(__('messages.error.receiver_invalid'));
        }

        $startOfMonth = Carbon::now()->startOfMonth();
        $endOfMonth   = Carbon::now()->endOfMonth();

        $cardsSentToThisUserThisMonth = Administration::where('msnv', $sender->msnv)
            ->where('receiver', $receiverMsnv)
            ->whereBetween('date', [$startOfMonth, $endOfMonth])
            ->sum('sent');

        if ($cardsSentToThisUserThisMonth + $amount > Administration::MAX_SEND_CARD_PER_MONTH) {
            throw new \RuntimeException(
                __('messages.error.max_send_limit_template', [
                    'max' => Administration::MAX_SEND_CARD_PER_MONTH,
                    'sent' => $cardsSentToThisUserThisMonth
                ])
            );
        }

        if ($sender->card < $amount) {
            throw new \RuntimeException(__('messages.error.not_enough_cards'));
        }

        DB::transaction(function () use ($sender, $receiverMsnv, $amount) {
            Administration::create([
                'msnv'     => $receiverMsnv,
                'received' => $amount,
                'sender'   => $sender->msnv,
                'sent'     => 0,
                'receiver' => null,
                'date'     => Carbon::today(),
            ]);

            Administration::create([
                'msnv'     => $sender->msnv,
                'received' => 0,
                'sender'   => null,
                'sent'     => $amount,
                'receiver' => $receiverMsnv,
                'date'     => Carbon::today(),
            ]);

            $sender->card -= $amount;
            $sender->save();
        });
    }

    public function updatePassword(User $user, string $newPassword): void
    {
        $user->pass        = md5($newPassword);
        $user->first_login = User::FIRST_LOGIN_FALSE;
        $user->save();
    }
}