Completed
Push — master ( e36103...5c707d )
by James Ekow Abaka
02:10
created

HelpersLoader::__get()   A

Complexity

Conditions 3
Paths 3

Size

Total Lines 15
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 4.125

Importance

Changes 0
Metric Value
cc 3
eloc 8
nc 3
nop 1
dl 0
loc 15
ccs 4
cts 8
cp 0.5
crap 4.125
rs 9.4285
c 0
b 0
f 0
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<?php
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/*
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 * Ntentan Framework
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 * Copyright (c) 2010-2015 James Ekow Abaka Ainooson
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 * 
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 * Permission is hereby granted, free of charge, to any person obtaining
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 * a copy of this software and associated documentation files (the
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 * "Software"), to deal in the Software without restriction, including
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 * without limitation the rights to use, copy, modify, merge, publish,
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 * distribute, sublicense, and/or sell copies of the Software, and to
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 * permit persons to whom the Software is furnished to do so, subject to
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 * the following conditions:
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 * 
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 * The above copyright notice and this permission notice shall be
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 * included in all copies or substantial portions of the Software.
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 * 
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
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 */
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namespace ntentan\honam;
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/**
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 * A class for loading the helpers in views.
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 */
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class HelpersLoader
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{
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    private $pluginMode = false;
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    private $plugin;
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    private $loadedHelpers = array();
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    /**
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     * Get the instance of a helper given the string name of the helper.
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     * 
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     * @param string $helper
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     * @return boolean|\ntentan\honam\Helper
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     */
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    private function getHelper($helper)
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    {
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        if(!isset($this->loadedHelpers[$this->plugin . $helper]))
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        {
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            $camelizedHelper = ucfirst($helper) . "Helper";
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            if($this->pluginMode)
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            {
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                $helperClass = "\\ntentan\\extensions\\{$this->plugin}\\helpers\\$camelizedHelper";
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                $this->pluginMode = false;
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            }
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            else if(file_exists(__DIR__ . "/helpers/$camelizedHelper.php"))
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            {
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                $helperClass = "\\ntentan\\honam\\helpers\\$camelizedHelper";                
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            }
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            else
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            {
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                return false;
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            }
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            $helperInstance = new $helperClass();
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            $this->loadedHelpers[$this->plugin . $helper] = $helperInstance;
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        }
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        return $this->loadedHelpers[$this->plugin . $helper];
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    }
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    public function __get($helper)
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    {
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        $helperInstance = $this->getHelper($helper);
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        if($helperInstance === false)
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        {
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            if($this->pluginMode === false)
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            {
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                $this->pluginMode = true;
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                $this->plugin = $helper;
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                $helperInstance = $this;
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            }
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        }
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        return $helperInstance;
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    }
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    public function __call($helperName, $arguments)
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    {
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        $helper = $this->getHelper($helperName);
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        if($helper === false)
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        {
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            throw new \ntentan\honam\exceptions\HelperException("Cannot load helper with [$helperName]");
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        }
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        else
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        {
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            $method = new \ReflectionMethod($helper, 'help');
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            $this->plugin = null;
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            $this->pluginMode = false;
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        }
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        return $method->invokeArgs($helper, $arguments);
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    }
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}
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