Restructure Storage to new paradigm

doc/AddonStorageBackend.md

@@ -4,7 +4,7 @@ Friendica Storage Backend Addon development
 * [Home](help)
 
 Storage backends can be added via addons.
-A storage backend is implemented as a class, and the plugin register the class to make it avaiable to the system.
+A storage backend is implemented as a class, and the plugin register the class to make it available to the system.
 
 ## The Storage Backend Class
 
@@ -12,14 +12,14 @@ The class must live in `Friendica\Addon\youraddonname` namespace, where `youradd
 
 There are two different interfaces you need to implement.
 
-### `IWritableStorage`
+### `ICanWriteToStorage`
 
-The class must implement `Friendica\Model\Storage\IWritableStorage` interface. All method in the interface must be implemented:
+The class must implement `Friendica\Core\Storage\Capability\ICanWriteToStorage` interface. All method in the interface must be implemented:
 
 ```php
-namespace Friendica\Model\Storage\IWritableStorage;
+namespace Friendica\Core\Storage\Capability\ICanWriteToStorage;
 
-interface IWritableStorage
+interface ICanWriteToStorage
 {
 	public function get(string $reference);
 	public function put(string $data, string $reference = '');
@@ -33,17 +33,17 @@ interface IWritableStorage
 - `put(string $data, string $reference)` saves data in `$data` to position `$reference`, or a new position if `$reference` is empty.
 - `delete(string $reference)` delete data pointed by `$reference`
 
-### `IStorageConfiguration`
+### `ICanConfigureStorage`
 
 Each storage backend can have options the admin can set in admin page.
-To make the options possible, you need to implement the `Friendica\Model\Storage\IStorageConfiguration` interface.
+To make the options possible, you need to implement the `Friendica\Core\Storage\Capability\ICanConfigureStorage` interface.
 
 All methods in the interface must be implemented:
 
 ```php
-namespace Friendica\Model\Storage\IStorageConfiguration;
+namespace Friendica\Core\Storage\Capability\ICanConfigureStorage;
 
-interface IStorageConfiguration
+interface ICanConfigureStorage
 {
 	public function getOptions();
 	public function saveOptions(array $data);
@@ -108,7 +108,7 @@ When the plugin is uninstalled, registered backends must be unregistered using
 `DI::facStorage()->unregister(string $class)`.
 
 You have to register a new hook in your addon, listening on `storage_instance(App $a, array $data)`.
-In case `$data['name']` is your storage class name, you have to instance a new instance of your `Friendica\Model\Storage\IStorage` class.
+In case `$data['name']` is your storage class name, you have to instance a new instance of your `Friendica\Core\Storage\Capability\ICanReadFromStorage` class.
 Set the instance of your class as `$data['storage']` to pass it back to the backend.
 
 This is necessary because it isn't always clear, if you need further construction arguments.
@@ -124,7 +124,7 @@ Add a new test class which's naming convention is `StorageClassTest`, which exte
 Override the two necessary instances:
 
 ```php
-use Friendica\Model\Storage\IWritableStorage;
+use Friendica\Core\Storage\Capability\ICanWriteToStorage;
 
 abstract class StorageTest 
 {
@@ -132,7 +132,7 @@ abstract class StorageTest
 	abstract protected function getInstance();
 
 	// Assertion for the option array you return for your new StorageClass
-	abstract protected function assertOption(IWritableStorage $storage);
+	abstract protected function assertOption(ICanWriteToStorage $storage);
 } 
 ```
 
@@ -156,16 +156,16 @@ If there's a predecessor to this exception (e.g. you caught an exception and are
 Example:
 
 ```php
-use Friendica\Model\Storage\IWritableStorage;
+use Friendica\Core\Storage\Capability\ICanWriteToStorage;
 
-class ExampleStorage implements IWritableStorage 
+class ExampleStorage implements ICanWriteToStorage 
 {
 	public function get(string $reference) : string
 	{
 		try {
 			throw new Exception('a real bad exception');
 		} catch (Exception $exception) {
-			throw new \Friendica\Model\Storage\StorageException(sprintf('The Example Storage throws an exception for reference %s', $reference), 500, $exception);
+			throw new \Friendica\Core\Storage\Exception\StorageException(sprintf('The Example Storage throws an exception for reference %s', $reference), 500, $exception);
 		}
 	}
 } 
@@ -186,12 +186,12 @@ The file will be `addon/samplestorage/SampleStorageBackend.php`:
 <?php
 namespace Friendica\Addon\samplestorage;
 
-use Friendica\Model\Storage\IWritableStorage;
+use Friendica\Core\Storage\Capability\ICanWriteToStorage;
 
 use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\L10n;
 
-class SampleStorageBackend implements IWritableStorage
+class SampleStorageBackend implements ICanWriteToStorage
 {
 	const NAME = 'Sample Storage';
 
@@ -247,12 +247,12 @@ class SampleStorageBackend implements IWritableStorage
 <?php
 namespace Friendica\Addon\samplestorage;
 
-use Friendica\Model\Storage\IStorageConfiguration;
+use Friendica\Core\Storage\Capability\ICanConfigureStorage;
 
 use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\L10n;
 
-class SampleStorageBackendConfig implements IStorageConfiguration
+class SampleStorageBackendConfig implements ICanConfigureStorage
 {
 	/** @var \Friendica\Core\Config\Capability\IManageConfigValues */
 	private $config;
@@ -357,8 +357,8 @@ function samplestorage_storage_config(App $a, array &$data)
 **Theoretically - until tests for Addons are enabled too - create a test class with the name `addon/tests/SampleStorageTest.php`:
 
 ```php
-use Friendica\Model\Storage\IWritableStorage;
-use Friendica\Test\src\Model\Storage\StorageTest;
+use Friendica\Core\Storage\Capability\ICanWriteToStorage;
+use Friendica\Test\src\Core\Storage\StorageTest;
 
 class SampleStorageTest extends StorageTest 
 {
@@ -371,7 +371,7 @@ class SampleStorageTest extends StorageTest
 	}
 
 	// Assertion for the option array you return for your new StorageClass
-	protected function assertOption(IWritableStorage $storage)
+	protected function assertOption(ICanWriteToStorage $storage)
 	{
 		$this->assertEquals([
 			'filename' => [