Telegram\Bot\Answers\AnswerBus

Complexity

Total Complexity

7

Size/Duplication

Total Lines	70
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

75%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__call()	0	8	2
A	getTelegram()	0	4	1
A	buildDependencyInjectedAnswer()	0	28	4

<?php

namespace Telegram\Bot\Answers;

use Telegram\Bot\Api;

/**
 * Class AnswerBus
 */
abstract class AnswerBus
{
    /**
     * @var Api
     */
    protected $telegram;

    /**
     * Handle calls to missing methods.
     *
     * @param  string $method
     * @param  array $parameters
     *
     * @return mixed
     *
     * @throws \BadMethodCallException
     */
    public function __call($method, $parameters)
    {
        if (method_exists($this, $method)) {
            return call_user_func_array([$this, $method], $parameters);
        }

        throw new \BadMethodCallException("Method [$method] does not exist.");
    }

    /**
     * @return Api
     */
    public function getTelegram()
    {
        return $this->telegram;
    }

    /**
     * Use PHP Reflection and Laravel Container to instantiate the answer with type hinted dependencies.
     *
     * @param $answerClass
     *
     * @return object
     */
    protected function buildDependencyInjectedAnswer($answerClass)
    {
        // check if the command has a constructor
        if (!method_exists($answerClass, '__construct')) {
            return new $answerClass();
        }

        // get constructor params
        $constructorReflector = new \ReflectionMethod($answerClass, '__construct');
        $params = $constructorReflector->getParameters();

        // if no params are needed proceed with normal instantiation
        if (empty($params)) {
            return new $answerClass();
        }

        // otherwise fetch each dependency out of the container
        $container = $this->telegram->getContainer();
        $dependencies = [];
        foreach ($params as $param) {
            $dependencies[] = $container->make($param->getClass()->name);
        }

        // and instantiate the object with dependencies through ReflectionClass
        $classReflector = new \ReflectionClass($answerClass);

        return $classReflector->newInstanceArgs($dependencies);
    }
}