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<?php
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namespace core\services;
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use core\entities\ModuleRecord;
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use core\repositories\ModuleRepository;
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use yii\helpers\FileHelper;
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use Yii;
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class ModuleService
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{
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private $modules;
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private $permission_manager;
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public function __construct(ModuleRepository $modules, PermissionManager $permission_manager)
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{
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$this->modules = $modules;
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$this->permission_manager = $permission_manager;
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}
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public function create($name, $class, $type = 'common', $active = ModuleRecord::STATUS_DISABLED): ModuleRecord
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{
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$module = new ModuleRecord();
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$module->name = $name;
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$module->class = $class;
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$module->type = $type;
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$module->active = $active;
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$this->modules->save($module);
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return $module;
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}
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public function delete(ModuleRecord $module)
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{
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// connect manifest
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$manifest = require Yii::getAlias('@common/modules/' . $module->name . '/manifest.php');
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// down migrations
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$migrations = $this->getMigrationFiles($module->name);
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$migrations = array_reverse($migrations);
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foreach ($migrations as $migrationPath) {
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$migrationFile = basename($migrationPath);
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$migration = str_replace('.php', '', $migrationFile);
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if ($this->migrationExists($migration)) {
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require $migrationPath;
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$obj = new $migration;
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if (method_exists($obj, 'safeDown')) {
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$obj->safeDown();
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Yii::$app->moduleManager->removeFromMigrationTable($migration);
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}
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elseif (method_exists($obj, 'down')) {
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$obj->down();
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Yii::$app->moduleManager->removeFromMigrationTable($migration);
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}
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}
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}
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// remove permissions
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if (isset($manifest['permissions']) && is_array($manifest['permissions'])) {
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$this->removePermissions($manifest['permissions']);
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}
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// delete files
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$modulePath = Yii::getAlias('@common/modules/' . $module->name);
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if (file_exists($modulePath)) {
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FileHelper::removeDirectory($modulePath);
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}
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// delete module record
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$this->modules->remove($module);
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}
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public function disable(ModuleRecord $module)
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{
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$module->active = ModuleRecord::STATUS_DISABLED;
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$this->modules->save($module);
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}
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public function enable(ModuleRecord $module)
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{
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// connect manifest
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$manifest = require Yii::getAlias('@common/modules/' . $module->name . '/manifest.php');
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$module->active = ModuleRecord::STATUS_ENABLED;
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// migration if not exists
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$migrations = $this->getMigrationFiles($module->name);
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foreach ($migrations as $migrationPath) {
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$migrationFile = basename($migrationPath);
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$migration = str_replace('.php', '', $migrationFile);
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if (!$this->migrationExists($migration)) {
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// run migration
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require $migrationPath;
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$obj = new $migration;
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if (method_exists($obj, 'safeUp')) {
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$obj->safeUp();
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Yii::$app->moduleManager->appendToMigrationTable($migration);
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}
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elseif (method_exists($obj, 'up')) {
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$obj->up();
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Yii::$app->moduleManager->appendToMigrationTable($migration);
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}
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}
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}
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// add not exists permissions
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if (isset($manifest['permissions']) && is_array($manifest['permissions'])) {
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$this->assignPermissions($manifest['permissions']);
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}
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$this->modules->save($module);
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}
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private function assignPermissions(array $permissions): void
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{
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foreach ($permissions as $permission => $description) {
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if (!$this->permission_manager->permissionExists($permission)) {
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$this->permission_manager->create($permission, $description);
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}
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}
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}
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private function removePermissions(array $permissions)
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{
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foreach ($permissions as $permission => $description) {
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if ($this->permission_manager->permissionExists($permission)) {
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$this->permission_manager->delete($permission);
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}
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}
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}
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private function getMigrationFiles($module)
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{
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// migration if not exists
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$migrationPath = Yii::getAlias('@common/modules/' . $module . '/migrations');
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return file_exists($migrationPath) ? FileHelper::findFiles($migrationPath) : [];
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}
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private function migrationExists($name): bool
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{
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// check record exists
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$connection = Yii::$app->getDb();
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$command = $connection->createCommand("SELECT * FROM migration WHERE version = '$name'");
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$result = $command->queryAll();
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return $result ? true : false;
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}
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}
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