<?php

namespace Barryvdh\Debugbar\Storage;

use DebugBar\Storage\StorageInterface;
use Illuminate\Filesystem\Filesystem;
use Symfony\Component\Finder\Finder;

/**
 * Stores collected data into files
 */
class FilesystemStorage implements StorageInterface
{
    protected $dirname;
    protected $files;
    protected $gc_lifetime = 24;     // Hours to keep collected data;
    protected $gc_probability = 5;   // Probability of GC being run on a save request. (5/100)

    /**
     * @param \Illuminate\Filesystem\Filesystem $files The filesystem
     * @param string $dirname Directories where to store files
     */
    public function __construct($files, $dirname)
    {
        $this->files = $files;
        $this->dirname = rtrim($dirname, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
    }

    /**
     * {@inheritDoc}
     */
    public function save($id, $data)
    {
        if (!$this->files->isDirectory($this->dirname)) {
            if ($this->files->makeDirectory($this->dirname, 0777, true)) {
                $this->files->put($this->dirname . '.gitignore', "*\n!.gitignore\n");
            } else {
                throw new \Exception("Cannot create directory '$this->dirname'..");
            }
        }

        try {
            $this->files->put($this->makeFilename($id), json_encode($data));
        } catch (\Exception $e) {
            //TODO; error handling
        }

        // Randomly check if we should collect old files
        if (rand(1, 100) <= $this->gc_probability) {
            $this->garbageCollect();
        }
    }

    /**
     * Create the filename for the data, based on the id.
     *
     * @param $id
     * @return string
     */
    public function makeFilename($id)
    {
        return $this->dirname . basename($id) . ".json";
    }

    /**
     * Delete files older than a certain age (gc_lifetime)
     */
    protected function garbageCollect()
    {
        foreach (
            Finder::create()->files()->name('*.json')->date('< ' . $this->gc_lifetime . ' hour ago')->in(
                $this->dirname
            ) as $file
        ) {
            $this->files->delete($file->getRealPath());
        }
    }

    /**
     * {@inheritDoc}
     */
    public function get($id)
    {
        return json_decode($this->files->get($this->makeFilename($id)), true);
    }

    /**
     * {@inheritDoc}
     */
    public function find(array $filters = [], $max = 20, $offset = 0)
    {
        // Sort by modified time, newest first
        $sort = function (\SplFileInfo $a, \SplFileInfo $b) {
            return strcmp($b->getMTime(), $a->getMTime());
        };

        // Loop through .json files, filter the metadata and stop when max is found.
        $i = 0;
        $results = [];
        foreach (Finder::create()->files()->name('*.json')->in($this->dirname)->sort($sort) as $file) {
            if ($i++ < $offset && empty($filters)) {
                $results[] = null;
                continue;
            }
            $data = json_decode($file->getContents(), true);
            $meta = $data['__meta'];
            unset($data);
            if ($this->filter($meta, $filters)) {
                $results[] = $meta;
            }
            if (count($results) >= ($max + $offset)) {
                break;
            }
        }
        return array_slice($results, $offset, $max);
    }

    /**
     * Filter the metadata for matches.
     *
     * @param $meta
     * @param $filters
     * @return bool
     */
    protected function filter($meta, $filters)
    {
        foreach ($filters as $key => $value) {
            if (!isset($meta[$key]) || fnmatch($value, $meta[$key]) === false) {
                return false;
            }
        }
        return true;
    }

    /**
     * {@inheritDoc}
     */
    public function clear()
    {
        foreach (Finder::create()->files()->name('*.json')->in($this->dirname) as $file) {
            $this->files->delete($file->getRealPath());
        }
    }
}

• [F] FilesystemStorage.php
  Delete
• [F] SocketStorage.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024