<?php

namespace App\Services;

use App\Models\Holiday;
use App\Models\User;
use Illuminate\Database\Eloquent\Collection;

class HolidayService
{
    public function getAll(User $user): Collection
    {
        $unitId = $this->resolveUnitId($user);

        return Holiday::where('unit_id', $unitId)
            ->orderBy('holiday_date', 'asc')
            ->get();
    }

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

    public function create(User $user, array $data): Holiday
    {
        $unitId = $this->resolveUnitId($user);

        return Holiday::create(array_merge($data, ['unit_id' => $unitId]));
    }

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

        if (!$model) {
            return null;
        }

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

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

        if (!$model) {
            return false;
        }

        return $model->delete();
    }

    private function resolveUnitId(User $user): int
    {
        $unit = $user->units()->first();
        abort_if(!$unit, 403, 'Usuário sem unidade associada.');
        return $unit->id;
    }
}