<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Di\Display;

use Zend\Di\Di;

/**
 * Exporter for class definitions
 */
class Console
{
    /**
     * @var Di
     */
    protected $di = null;

    /**
     * @var string[]
     */
    protected $runtimeClasses = array();

    /**
     * Export
     *
     * @param  Di    $di
     * @param  array $runtimeClasses
     * @return void
     */
    public static function export(Di $di, array $runtimeClasses = array())
    {
        $console = new static($di);
        $console->addRuntimeClasses($runtimeClasses);
        $console->render($di);
    }

    /**
     * Constructor
     *
     * @param null|Di $di
     */
    public function __construct(Di $di = null)
    {
        $this->di = ($di) ?: new Di;
    }

    /**
     * @param string[] $runtimeClasses
     */
    public function addRuntimeClasses(array $runtimeClasses)
    {
        foreach ($runtimeClasses as $runtimeClass) {
            $this->addRuntimeClass($runtimeClass);
        }
    }

    /**
     * @param string $runtimeClass
     */
    public function addRuntimeClass($runtimeClass)
    {
        $this->runtimeClasses[] = $runtimeClass;
    }

    public function render()
    {
        $knownClasses = array();

        echo 'Definitions' . PHP_EOL . PHP_EOL;

        foreach ($this->di->definitions() as $definition) {
            $this->renderDefinition($definition);
            foreach ($definition->getClasses() as $class) {
                $knownClasses[] = $class;
                $this->renderClassDefinition($definition, $class);
            }
            if (count($definition->getClasses()) == 0) {
                echo PHP_EOL .'    No Classes Found' . PHP_EOL . PHP_EOL;
            }
        }

        if ($this->runtimeClasses) {
            echo '  Runtime classes:' . PHP_EOL;
        }

        $unknownRuntimeClasses = array_diff($this->runtimeClasses, $knownClasses);
        foreach ($unknownRuntimeClasses as $runtimeClass) {
            $definition = $this->di->definitions()->getDefinitionForClass($runtimeClass);
            $this->renderClassDefinition($definition, $runtimeClass);
        }

        echo PHP_EOL . 'Instance Configuration Info:' . PHP_EOL;

        echo PHP_EOL . '  Aliases:' . PHP_EOL;

        $configuredTypes = array();
        foreach ($this->di->instanceManager()->getAliases() as $alias => $class) {
            echo '    ' . $alias . ' [type: ' . $class . ']' . PHP_EOL;
            $configuredTypes[] = $alias;
        }

        echo PHP_EOL . '  Classes:' . PHP_EOL;

        foreach ($this->di->instanceManager()->getClasses() as $class) {
            echo '    ' . $class . PHP_EOL;
            $configuredTypes[] = $class;
        }

        echo PHP_EOL . '  Configurations:' . PHP_EOL;

        foreach ($configuredTypes as $type) {
            $info = $this->di->instanceManager()->getConfig($type);
            echo '    ' . $type . PHP_EOL;

            if ($info['parameters']) {
                echo '      parameters:' . PHP_EOL;
                foreach ($info['parameters'] as $param => $value) {
                    echo '        ' . $param . ' = ' . $value . PHP_EOL;
                }
            }

            if ($info['injections']) {
                echo '      injections:' . PHP_EOL;
                foreach ($info['injections'] as $injection => $value) {
                    var_dump($injection, $value);
                }
            }
        }
    }

    /**
     * @param object $definition
     */
    protected function renderDefinition($definition)
    {
        echo '  Definition Type: ' . get_class($definition) . PHP_EOL;
        $r = new \ReflectionClass($definition);
        foreach ($r->getProperties(\ReflectionProperty::IS_PUBLIC | \ReflectionProperty::IS_PROTECTED) as $property) {
            $property->setAccessible(true);
            echo '    internal property: ' . $property->getName();
            $value = $property->getValue($definition);
            if (is_object($value)) {
                echo ' instance of ' . get_class($value);
            } else {
                echo ' = ' . $value;
            }
            echo PHP_EOL;
        }
    }

    /**
     * @param \Zend\Di\Definition\DefinitionInterface $definition
     * @param string                                  $class
     */
    protected function renderClassDefinition($definition, $class)
    {
        echo PHP_EOL . '    Parameters For Class: ' . $class . PHP_EOL;
        foreach ($definition->getMethods($class) as $methodName => $methodIsRequired) {
            foreach ($definition->getMethodParameters($class, $methodName) as $fqName => $pData) {
                echo '      ' . $pData[0] . ' [type: ';
                echo($pData[1]) ? $pData[1] : 'scalar';
                echo($pData[2] === true && $methodIsRequired) ? ', required' : ', not required';
                echo ', injection-method: ' . $methodName;
                echo ' fq-name: ' . $fqName;
                echo ']' . PHP_EOL;
            }
        }
        echo PHP_EOL;
    }
}