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<?php |
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|
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namespace Hostinger\Reach; |
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|
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use Psr\Container\ContainerInterface; |
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use Closure; |
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use ReflectionException; |
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use ReflectionClass; |
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use ReflectionMethod; |
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use Exception; |
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|
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class Container implements ContainerInterface { |
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protected array $entries = array(); |
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protected array $instances = array(); |
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protected array $rules = array(); |
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|
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public function get( mixed $id ): mixed { |
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if ( ! $this->has( $id ) ) { |
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$this->set( $id ); |
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} |
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|
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if ( $this->entries[ $id ] instanceof Closure || is_callable( $this->entries[ $id ] ) ) { |
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return $this->entries[ $id ]( $this ); |
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} |
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|
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if ( isset( $this->rules['shared'] ) && in_array( $id, $this->rules['shared'], true ) ) { |
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return $this->singleton( $id ); |
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} |
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|
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return $this->resolve( $id ); |
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} |
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|
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public function has( mixed $id ): bool { |
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return isset( $this->entries[ $id ] ); |
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} |
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|
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public function set( mixed $entry, mixed $concrete = null ): void { |
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if ( is_null( $concrete ) ) { |
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$concrete = $entry; |
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} |
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$this->entries[ $entry ] = $concrete; |
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} |
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|
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public function resolve( mixed $alias ): mixed { |
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$reflector = $this->getReflector( $alias ); |
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$constructor = $reflector->getConstructor(); |
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if ( $reflector->isInterface() ) { |
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return $this->resolveInterface( $reflector ); |
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} |
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if ( ! $reflector->isInstantiable() ) { |
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throw new Exception( |
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esc_html( "Cannot inject {$reflector->getName()} because it cannot be instantiated" ) |
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); |
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} |
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if ( $constructor === null ) { |
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return $reflector->newInstance(); |
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} |
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$args = $this->getArguments( $alias, $constructor ); |
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|
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return $reflector->newInstanceArgs( $args ); |
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} |
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|
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public function singleton( mixed $alias ): mixed { |
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if ( ! isset( $this->instances[ $alias ] ) ) { |
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$this->instances[ $alias ] = $this->resolve( |
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$this->entries[ $alias ] |
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); |
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} |
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|
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return $this->instances[ $alias ]; |
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} |
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|
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public function getReflector( string $alias ): ReflectionClass { |
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$class = $this->entries[ $alias ]; |
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try { |
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return ( new ReflectionClass( $class ) ); |
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} catch ( ReflectionException $e ) { |
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throw new Exception( |
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esc_html( $e->getMessage() ), |
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esc_html( $e->getCode() ) |
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); |
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} |
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} |
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|
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public function getArguments( mixed $alias, ReflectionMethod $constructor ): array { |
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$args = array(); |
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$params = $constructor->getParameters(); |
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|
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foreach ( $params as $param ) { |
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$type = $param->getType(); |
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|
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if ( $type && ! $type->isBuiltin() ) { |
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$class_name = $type->getName(); |
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$args[] = $this->get( $class_name ); |
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} elseif ( $param->isDefaultValueAvailable() ) { |
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$args[] = $param->getDefaultValue(); |
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} elseif ( isset( $this->rules[ $alias ][ $param->getName() ] ) ) { |
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$args[] = $this->rules[ $alias ][ $param->getName() ]; |
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} |
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} |
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|
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return $args; |
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} |
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|
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public function resolveInterface( ReflectionClass $reflector ): mixed { |
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if ( isset( $this->rules['substitute'][ $reflector->getName() ] ) ) { |
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return $this->get( |
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$this->rules['substitute'][ $reflector->getName() ] |
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); |
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} |
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|
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$classes = get_declared_classes(); |
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foreach ( $classes as $class ) { |
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$rf = new ReflectionClass( $class ); |
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if ( $rf->implementsInterface( $reflector->getName() ) ) { |
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return $this->get( $rf->getName() ); |
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} |
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} |
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throw new Exception( |
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esc_html( "Class {$reflector->getName()} not found" ), |
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1 |
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); |
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} |
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|
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public function configure( array $config ): static { |
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$this->rules = array_merge( $this->rules, $config ); |
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|
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return $this; |
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} |
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} |
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|
