Getting Started

Install the package via Composer:

composer require vendor/package-name

Vendor\PackageName\PackageServiceProvider::class,

Publish the config file (if available) with:

php artisan vendor:publish --provider="Vendor\PackageName\PackageServiceProvider" --tag="config"

For first use, initialize caching (if applicable) by running:

php artisan cache:clear

Check the updated config/package-name.php for new Symfony Cache configuration options (e.g., cache_driver, cache_prefix).

Implementation Patterns

Cache Configuration

Leverage Symfony Cache’s drivers (e.g., array, apcu, redis, file) via the updated config:

// config/package-name.php
'cache' => [
    'driver' => env('CACHE_DRIVER', 'redis'),
    'prefix' => 'package_',
],

Use the package’s cache helpers (if provided) to interact with Symfony Cache:

use Vendor\PackageName\Facades\CacheHelper;

// Store data
CacheHelper::put('key', 'value', now()->addHour());

// Retrieve data
$data = CacheHelper::get('key');

Dependency Injection

Inject the cache instance directly into your services:

use Symfony\Component\Cache\CacheInterface;

class MyService {
    public function __construct(private CacheInterface $cache) {}

    public function doSomething() {
        $this->cache->get('key', fn() => $this->expensiveOperation());
    }
}

Migrating from Doctrine Cache

Replace old Doctrine Cache calls (e.g., Doctrine\Common\Cache\CacheProvider) with Symfony Cache equivalents:

// Old (deprecated)
$cache = new Doctrine\Common\Cache\FilesystemCache();

// New
$cache = new Symfony\Component\Cache\Adapter\FilesystemAdapter();

Gotchas and Tips

Breaking Changes

Doctrine Cache Deprecation: The package no longer uses doctrine/cache-bundle. Update any direct dependencies on it.
Cache Interface Changes: Symfony’s CacheInterface differs slightly from Doctrine’s. Review method signatures (e.g., fetch() vs get()).
- Use get() with a fallback closure for missing keys:
```
$value = $cache->get('key', fn() => $defaultValue);
```

Configuration Quirks

Environment Variables: Ensure CACHE_DRIVER in .env matches Symfony’s supported drivers (e.g., redis, file).
```
CACHE_DRIVER=redis
CACHE_CONNECTION=default
```
Prefix Collisions: Customize cache_prefix in config to avoid key clashes with other packages.

Performance Tips

Cache Tags: Use Symfony’s tagging system for batch invalidation:

$cache->get('key', fn() => $data)->tag('user-data');
$cache->invalidateTags(['user-data']);

Adapter Optimization: For Redis, configure connection pooling in config/cache.php:

'stores' => [
    'redis' => [
        'driver' => 'redis',
        'connection' => 'cache',
        'options' => [
            'prefix' => 'package_',
            'pool' => true, // Enable connection pooling
        ],
    ],
],

Debugging

Cache Misses: Enable Symfony Cache’s debug mode in config/cache.php:

'default' => env('CACHE_DRIVER', 'array'),
'stores' => [
    'array' => [
        'driver' => 'array',
        'debug' => env('APP_DEBUG', false), // Log misses
    ],
],

Log Cache Operations: Use PSR-3 logger to trace cache hits/misses:

$cache = new Symfony\Component\Cache\Adapter\FilesystemAdapter(
    new Symfony\Component\Cache\Adapter\FilesystemCacheItemPool('/path/to/cache'),
    [],
    new Symfony\Component\Cache\Psr16Adapter(new Monolog\Logger('cache'))
);

Extension Points

Custom Cache Pool: Extend Symfony\Component\Cache\CacheItemPoolInterface for specialized storage:

class CustomCachePool implements CacheItemPoolInterface {
    // Implement required methods
}

Cache Warmer: Use Symfony’s CacheWarmerInterface to preload critical data:

class PackageCacheWarmer implements CacheWarmerInterface {
    public function warmUp($cacheDir) {
        $cache = new Symfony\Component\Cache\Adapter\FilesystemAdapter(
            new Symfony\Component\Cache\Adapter\FilesystemCacheItemPool($cacheDir)
        );
        $cache->get('preload-key', fn() => $this->preloadData());
    }
}

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