<?php

namespace App\Repositories;

use App\Models\City;
use App\DTO\CityDTO;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Facades\Cache;

class CityRepository implements CityRepositoryInterface
{
    public function __construct(
        protected City $model,
        readonly protected string $cacheKey = 'cities.all',
        readonly protected int $cacheTtl = 2592000 // one month in seconds
    ) {}

    public function all(): Collection
    {
        return Cache::remember($this->cacheKey, $this->cacheTtl, function () {
            return $this->model->with('state:id,name', 'country:id,name')->get();
        });
    }

    public function find(int $id): ?City
    {
        return $this->model->with('state:id,name', 'country:id,name')->find($id);
    }

    public function create(CityDTO $dto): City
    {
        Cache::forget($this->cacheKey);
        return $this->model->create($dto->toArray());
    }

    public function update(int $id, CityDTO $dto, array $fieldsToUpdate): City
    {
        $record = $this->find($id);

        $updateFields = array_intersect_key(
            $dto->toArray(),
            array_flip($fieldsToUpdate)
        );

        $record->update($updateFields);
        Cache::forget($this->cacheKey);
        return $record->fresh();
    }

    public function delete(int $id): bool
    {
        Cache::forget($this->cacheKey);
        return $this->model->destroy($id) > 0;
    }
}