<?php

namespace App\Services;

use App\Enums\UserStatusEnum;
use App\Enums\UserTypeEnum;
use App\Models\User;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Facades\Auth;

class UserService
{
    public function authUser(): ?User
    {
        $user = Auth::user();
        return $user?->load(['position', 'sector']);
    }

    public function getAll(): Collection
    {
        return User::with(['position', 'sector'])->orderBy("created_at", "desc")->get();
    }

    public function getAllPaginated(array $filters = [], int $perPage = 10): \Illuminate\Pagination\LengthAwarePaginator
    {
        $query = User::with(['position', 'sector'])->orderBy('created_at', 'desc');

        if (!empty($filters['type'])) {
            $query->where('type', $filters['type']);
        }

        if (!empty($filters['status'])) {
            $query->where('status', $filters['status']);
        }

        if (!empty($filters['search'])) {
            $term = '%' . mb_strtolower($filters['search']) . '%';
            $query->where(function ($q) use ($term) {
                $q->whereRaw('UNACCENT(LOWER(name)) LIKE UNACCENT(?)', [$term])
                  ->orWhereRaw('UNACCENT(LOWER(email)) LIKE UNACCENT(?)', [$term])
                  ->orWhereRaw('UNACCENT(LOWER(COALESCE(cpf, \'\'))) LIKE UNACCENT(?)', [$term])
                  ->orWhereRaw('UNACCENT(LOWER(COALESCE(registration, \'\'))) LIKE UNACCENT(?)', [$term]);
            });
        }

        return $query->paginate($perPage);
    }

    public function findById(int $id): ?User
    {
        return User::find($id);
    }

    public function create(array $data): User
    {
        return User::create($data);
    }

    public function update(int $id, array $data): ?User
    {
        $model = $this->findById($id);

        if (!$model) {
            return null;
        }

        if (isset($data['status'])) {
            $newStatus = $data['status'] instanceof UserStatusEnum
                ? $data['status']
                : UserStatusEnum::from($data['status']);

            if ($newStatus === UserStatusEnum::INACTIVE && $model->status !== UserStatusEnum::INACTIVE) {
                $data['excluded_at'] = now();
            } elseif ($newStatus !== UserStatusEnum::INACTIVE) {
                $data['excluded_at'] = null;
            }
        }

        $model->update($data);
        return $model->fresh();
    }

    public function delete(int $id): bool
    {
        $model = $this->findById($id);

        if (!$model) {
            return false;
        }

        return $model->delete();
    }

    public function getUserTypes(): array
    {
        return UserTypeEnum::toArray();
    }
}