<?php

namespace Aweos\Resizer\Classes;

use Cache;

class CacheManager
{

    public FileObserver $fileObserver;
    public TagGenerator $tag;

    public function __construct(FileObserver $fileObserver, TagGenerator $tag) 
    {
        $this->tag = $tag;
        $this->fileObserver = $fileObserver;
    }

    public function get(string $path, string $size): string
    {
        return Cache::tags($this->getTag($path))
            ->rememberForever($this->cacheKey($path, $size), fn () => $this->tag->generate($path, $size));
    }

    public function delete(string $path): void
    {
        $path = $this->fileObserver->normalizePath($path);
        Cache::tags("resizer.$path")->flush();
    }

    private function getTag(string $path): array
    {
        return ['resizer', "resizer.{$this->fileObserver->normalizePath($path)}"];
    }

    private function cacheKey(string $path, string $size): string
    {
        $normalPath = $this->fileObserver->normalizePath($path);

        return "resizer.{$size}.{$normalPath}";
    }

}