ModuleManager::unsatisfiedDependencies() - Code Metrics - Inspection of "[UPDATE] reorganize files to system module" - x-systems/epesi-core - Measure and Improve Code Quality continuously with Scrutinizer

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by Georgi

created 2019-11-04 01:03 UTC

ModuleManager::unsatisfiedDependencies() A

↳ Parent: ModuleManager

Complexity

Conditions	1
Paths	1

Size

Total Lines	2
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	1
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	2
rs	10

<?php

namespace Epesi\Core\System\Integration\Modules;

use Epesi\Core\System\Database\Models\Module;
use Illuminate\Support\Facades\Cache;
use Illuminate\Database\QueryException;
use atk4\core\Exception;

class ModuleManager
{
	use Concerns\HasPackageManifest;
	
	/**
	 * @var \Illuminate\Support\Collection
	 */
	private static $installed;
	private static $processing;

	public static function isInstalled($classOrAlias)
	{
		return self::getClass($classOrAlias, true)? 1: 0;
	}
	
	public static function isAvalable($classOrAlias)
	{
		return class_exists(self::getClass($classOrAlias));
	}

	/**
	 * Get the module core class from class or alias
	 * 
	 * @param string $classOrAlias
	 * @return string;
	 */
	public static function getClass($classOrAlias, $installedOnly = false) {
		$modules = $installedOnly? self::getInstalled(): self::getAll();
		
		if (collect($modules)->contains($classOrAlias)) return $classOrAlias;
		
		return $modules[$classOrAlias]?? null;
	}
	
	/**
	 * Get a collection of installed modules in alias -> class pairs
	 * 
	 * @return Illuminate\Support\Collection;

	 */
	public static function getInstalled()
	{
		return self::$installed = self::$installed?? self::getCached('epesi-modules-installed', function() {

			// if epesi is not installed fake having the system module to enable its functionality
			try {
				$installedModules = Module::pluck('class', 'alias');
			} catch (QueryException $e) {
// 				$installedModules = collect([
// 						'system' => \Epesi\Core\System\SystemCore::class
// 				]);
				$installedModules = collect();
			}
			
			return $installedModules;
		});
	}
	
	/**
	 * Get a collection of all manifested modules in alias -> class pairs
	 * 
	 * @return Illuminate\Support\Collection;
	 */
	public static function getAll()
	{
		return self::getCached('epesi-modules-available', function () {
			$modules = collect();
			foreach (array_merge(config('epesi.modules', []), self::packageManifest()->modules()?: []) as $moduleClass) {
				$modules->add(['alias' => $moduleClass::alias(), 'class' => $moduleClass]);
			}

			return $modules->pluck('class', 'alias');
		});
	}
	
	/**
	 * Common method to use for caching of data within module manager
	 * 
	 * @param string $key
	 * @param \Closure $default
	 * @return mixed
	 */
	protected static function getCached($key, \Closure $default)
	{
		if (! Cache::has($key)) {
			Cache::forever($key, $default());
		}

		return Cache::get($key);
	}
	
	/**
	 * Clear module manager cache
	 */
	public static function clearCache()
	{
		self::$installed = null;
		Cache::forget('epesi-modules-installed');
		Cache::forget('epesi-modules-available');
	}
	
	/**
	 * Alias for collect when no return values expected
	 *
	 * @param string $method
	 * @return array
	 */
	public static function call($method, $args = [])
	{
		return self::collect($method, $args);
	}
	
	/**
	 * Collect array of results from $method in all installed module core classes
	 *
	 * @param string $method
	 * @return array
	 */
	public static function collect($method, $args = [])
	{
		$args = is_array($args)? $args: [$args];
		
		$installedModules = self::getInstalled();
		
		// if epesi is not installed fake having the system module to enable its functionality
		if ($installedModules->isEmpty()) {
			$installedModules = collect([
				'system' => \Epesi\Core\System\SystemCore::class
			]);
		}
		
		$ret = [];
		foreach ($installedModules as $module) {
			if (! $list = $module::$method(...$args)) continue;
			
			$ret = array_merge($ret, is_array($list)? $list: [$list]);
		}
		
		return $ret;
	}

	/**
	 * Install the module class provided as argument
	 * 
	 * @param string $classOrAlias
	 */
	public static function install($classOrAlias, $abortIfInstalled = true)
	{
		if ($abortIfInstalled && self::isInstalled($classOrAlias)) {
			print ('Module "' . $classOrAlias . '" already installed!');
			
			return true;
		}
		
		if (! $moduleClass = self::getClass($classOrAlias)) {			
			throw new \Exception('Module "' . $classOrAlias . '" could not be identified');
		}
		
		/**
		 * @var ModuleCore $module
		 */
		$module = new $moduleClass();
		
		$module->migrate();
		
		self::satisfyDependencies($moduleClass);
		
		try {
			$module->install();
		} catch (\Exception $exception) {
			$module->rollback();
			
			throw $exception;
		}
		
		$module->publishAssets();
		
		// update database
		Module::create([
				'class' => $moduleClass,
				'alias' => $module->alias()
		]);
		
		self::clearCache();
		
		print ('Module ' . $classOrAlias . ' successfully installed!');
		
		return true;
	}
	
	/**
	 * Install modules that $moduleClass requires
	 * Performs operation recursively for all required modules
	 * 
	 * @param string $moduleClass
	 * @throws \Exception
	 * @return boolean
	 */
	protected static function satisfyDependencies($moduleClass) {
		self::$processing[$moduleClass] = true;
		
		while ($unsatisfiedDependencies = self::unsatisfiedDependencies($moduleClass)) {
			$parentModule = array_shift($unsatisfiedDependencies);
				
			if (self::$processing[$parentModule]?? false) {
				throw new Exception('Cross dependency: '. $parentModule);
			}
				
			if (! self::isAvalable($parentModule)) {
				throw new Exception('Module not found: "' . $parentModule . '"');
			}
	
			print("\n\r");
			print('Installing required module: "' . $parentModule . '" by "' . $moduleClass . '"');

			self::install($parentModule);
		}

		unset(self::$processing[$moduleClass]);
		
		return true;
	}
	
	protected static function unsatisfiedDependencies($moduleClass) {
		return collect($moduleClass::requires())->diff(self::getInstalled())->filter()->all();
	}	
}


1			<?php
2
3			namespace Epesi\Core\System\Integration\Modules;
4
5			use Epesi\Core\System\Database\Models\Module;
6			use Illuminate\Support\Facades\Cache;
7			use Illuminate\Database\QueryException;
8			use atk4\core\Exception;
9
10			class ModuleManager
11			{
12			use Concerns\HasPackageManifest;
13
14			/**
15			* @var \Illuminate\Support\Collection
16			*/
17			private static $installed;
18			private static $processing;
19
20			public static function isInstalled($classOrAlias)
21			{
22			return self::getClass($classOrAlias, true)? 1: 0;
23			}
24
25			public static function isAvalable($classOrAlias)
26			{
27			return class_exists(self::getClass($classOrAlias));
28			}
29
30			/**
31			* Get the module core class from class or alias
32			*
33			* @param string $classOrAlias
34			* @return string;
35			*/
36			public static function getClass($classOrAlias, $installedOnly = false) {
37			$modules = $installedOnly? self::getInstalled(): self::getAll();
38
39			if (collect($modules)->contains($classOrAlias)) return $classOrAlias;
40
41			return $modules[$classOrAlias]?? null;
42			}
43
44			/**
45			* Get a collection of installed modules in alias -> class pairs
46			*
47			* @return Illuminate\Support\Collection;
			0 ignored issues – show Bug introduced 2019-11-02 19:00 UTC by Report Bug Copy Issue Report The type `Epesi\Core\System\Integr...nate\Support\Collection` was not found. Did you mean `Illuminate\Support\Collection`? If so, make sure to prefix the type with `\`. Loading history...
48			*/
49			public static function getInstalled()
50			{
51			return self::$installed = self::$installed?? self::getCached('epesi-modules-installed', function() {
			0 ignored issues – show Bug Best Practice introduced 2019-11-02 19:00 UTC by Report Bug Copy Issue Report The expression `return self::installed =...ion(...) { /* ... */ })` also could return the type `Illuminate\Support\Collection` which is incompatible with the documented return type `Epesi\Core\System\Integr...nate\Support\Collection`. Loading history...
52			// if epesi is not installed fake having the system module to enable its functionality
53			try {
54			$installedModules = Module::pluck('class', 'alias');
55			} catch (QueryException $e) {
56			// $installedModules = collect([
57			// 'system' => \Epesi\Core\System\SystemCore::class
58			// ]);
59			$installedModules = collect();
60			}
61
62			return $installedModules;
63			});
64			}
65
66			/**
67			* Get a collection of all manifested modules in alias -> class pairs
68			*
69			* @return Illuminate\Support\Collection;
70			*/
71			public static function getAll()
72			{
73			return self::getCached('epesi-modules-available', function () {
74			$modules = collect();
75			foreach (array_merge(config('epesi.modules', []), self::packageManifest()->modules()?: []) as $moduleClass) {
76			$modules->add(['alias' => $moduleClass::alias(), 'class' => $moduleClass]);
77			}
78
79			return $modules->pluck('class', 'alias');
80			});
81			}
82
83			/**
84			* Common method to use for caching of data within module manager
85			*
86			* @param string $key
87			* @param \Closure $default
88			* @return mixed
89			*/
90			protected static function getCached($key, \Closure $default)
91			{
92			if (! Cache::has($key)) {
93			Cache::forever($key, $default());
94			}
95
96			return Cache::get($key);
97			}
98
99			/**
100			* Clear module manager cache
101			*/
102			public static function clearCache()
103			{
104			self::$installed = null;
105			Cache::forget('epesi-modules-installed');
106			Cache::forget('epesi-modules-available');
107			}
108
109			/**
110			* Alias for collect when no return values expected
111			*
112			* @param string $method
113			* @return array
114			*/
115			public static function call($method, $args = [])
116			{
117			return self::collect($method, $args);
118			}
119
120			/**
121			* Collect array of results from $method in all installed module core classes
122			*
123			* @param string $method
124			* @return array
125			*/
126			public static function collect($method, $args = [])
127			{
128			$args = is_array($args)? $args: [$args];
129
130			$installedModules = self::getInstalled();
131
132			// if epesi is not installed fake having the system module to enable its functionality
133			if ($installedModules->isEmpty()) {
134			$installedModules = collect([
135			'system' => \Epesi\Core\System\SystemCore::class
136			]);
137			}
138
139			$ret = [];
140			foreach ($installedModules as $module) {
141			if (! $list = $module::$method(...$args)) continue;
142
143			$ret = array_merge($ret, is_array($list)? $list: [$list]);
144			}
145
146			return $ret;
147			}
148
149			/**
150			* Install the module class provided as argument
151			*
152			* @param string $classOrAlias
153			*/
154			public static function install($classOrAlias, $abortIfInstalled = true)
155			{
156			if ($abortIfInstalled && self::isInstalled($classOrAlias)) {
157			print ('Module "' . $classOrAlias . '" already installed!');
158
159			return true;
160			}
161
162			if (! $moduleClass = self::getClass($classOrAlias)) {
163			throw new \Exception('Module "' . $classOrAlias . '" could not be identified');
164			}
165
166			/**
167			* @var ModuleCore $module
168			*/
169			$module = new $moduleClass();
170
171			$module->migrate();
172
173			self::satisfyDependencies($moduleClass);
174
175			try {
176			$module->install();
177			} catch (\Exception $exception) {
178			$module->rollback();
179
180			throw $exception;
181			}
182
183			$module->publishAssets();
184
185			// update database
186			Module::create([
187			'class' => $moduleClass,
188			'alias' => $module->alias()
189			]);
190
191			self::clearCache();
192
193			print ('Module ' . $classOrAlias . ' successfully installed!');
194
195			return true;
196			}
197
198			/**
199			* Install modules that $moduleClass requires
200			* Performs operation recursively for all required modules
201			*
202			* @param string $moduleClass
203			* @throws \Exception
204			* @return boolean
205			*/
206			protected static function satisfyDependencies($moduleClass) {
207			self::$processing[$moduleClass] = true;
208
209			while ($unsatisfiedDependencies = self::unsatisfiedDependencies($moduleClass)) {
210			$parentModule = array_shift($unsatisfiedDependencies);
211
212			if (self::$processing[$parentModule]?? false) {
213			throw new Exception('Cross dependency: '. $parentModule);
214			}
215
216			if (! self::isAvalable($parentModule)) {
217			throw new Exception('Module not found: "' . $parentModule . '"');
218			}
219
220			print("\n\r");
221			print('Installing required module: "' . $parentModule . '" by "' . $moduleClass . '"');
222
223			self::install($parentModule);
224			}
225
226			unset(self::$processing[$moduleClass]);
227
228			return true;
229			}
230
231			protected static function unsatisfiedDependencies($moduleClass) {
232			return collect($moduleClass::requires())->diff(self::getInstalled())->filter()->all();
233			}
234			}
235

x-systems / epesi-core

Push — master ( 370e51...582fe4 )

ModuleManager::unsatisfiedDependencies() A

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