<?php

class App_Admin_Tool_Project_Context_BuildFile extends App_Admin_Tool_Project_Context_Abstract
{
    const PHP_FILE_EXTENSION = 'php';
    const TPL_FILE_EXTENSION = 'tpl';
    const JS_FILE_EXTENSION = 'js';

    protected $_classSuffix = null;
    protected $_useNamespace = null;
    protected $_fileExtension = self::PHP_FILE_EXTENSION;

    public function generate()
    {
        if (empty($this->_filesystemName)) {
            throw new Qs_Db_Exception($this->_errorMap[self::ERROR_FILESYSTEM_NAME_IS_NULL]);
        }
        if (empty($this->_baseDirectory)) {
            throw new  Qs_Db_Exception($this->_errorMap[self::ERROR_BASE_DIRECTORY_IS_NULL]);
        }
        if (empty($this->_moduleName)) {
            throw new  Qs_Db_Exception($this->_errorMap[self::ERROR_MODULE_NAME_IS_NULL]);
        }

        $this->_initProperties();
        file_put_contents($this->getFullPath(), $this->_getContext());
        return true;
    }

    protected function _initProperties()
    {
        $this->_classBase = 'App_' . $this->_moduleName . '_';

        $this->_fileExtension = substr($this->getFilesystemName(), strrpos($this->getFilesystemName(), '.') + 1);
        $this->_fileExtension = strtolower($this->_fileExtension);

        $this->_classSuffix = substr($this->getFilesystemName(), 0, strrpos($this->getFilesystemName(), '.'));
        $this->_classSuffix = ucfirst($this->_classSuffix);

        return $this;
    }

    protected function _getContext()
    {
        $baseDirectoryNamePart = '';
        $baseDirectoryArray = explode(DIRECTORY_SEPARATOR, $this->getBaseDirectory());

        $startPosition = null;
        foreach ($baseDirectoryArray as $key => $item) {
            if ($item == App_Admin_Tool_Project_Provider_Module::ADMIN_DIRECTORY_NAME
                || $item == App_Admin_Tool_Project_Provider_Module::ABSTRACT_DIRECTORY_NAME )
            {
                $startPosition = $key;
            }
        }
        if ($startPosition) {
            $baseDirectoryNamePart .= implode('', array_slice($baseDirectoryArray, $startPosition));
        }

        if ($this->_useNamespace && $this->_classSuffix == $this->_moduleName . 'List') {
            $this->_classSuffix = 'ModuleNameList';
        }
        $contextClassName = $this->_fileExtension == self::JS_FILE_EXTENSION
                          ? 'General'
                          : ($baseDirectoryNamePart . $this->_classSuffix);
        $contextClassName = 'App_Admin_Tool_Project_Context_File_' . ucfirst($this->_fileExtension) . '_'
            . $contextClassName;

        $options = array(
            'moduleName'    => $this->_moduleName,        // Tool
            'classBase'     => $this->_classBase,         // [App_Admin_]Tool
            'classSuffix'   => $this->_classSuffix,       // App_Admin_[Tool]
            'baseDirectory' => $this->getBaseDirectory(), // App/Admin or App/Admin/Tool etc.
            'params'        => $this->_params
        );
        $contextClassNameDefault = 'App_Admin_Tool_Project_Context_File_Default_' . ucfirst($this->_fileExtension);
        /** @var App_Admin_Tool_Project_Context_File_Abstract $contextClassObj */
        $contextClassObj = new $contextClassNameDefault($options);
        $contextClassObj->setUseNamespace($this->_useNamespace);
        $context = $contextClassObj->getContext();
        if (class_exists($contextClassName)) {
            $contextClassObj = new $contextClassName($options);
            $contextClassObj->setUseNamespace($this->_useNamespace);
            if ($contextClassObj instanceof App_Admin_Tool_Project_Context_File_Abstract
                && method_exists($contextClassObj, 'getContext')
            ) {
                $context = $contextClassObj->getContext();
            }
        }
        return $context;
    }

    /**
     * @return App_Admin_Tool_Project_Context_BuildFile
     */
    public function delete()
    {
        unlink($this->getFullPath());
        return $this;
    }

    /**
     * @return bool
     */
    public function exists()
    {
        return file_exists($this->getFullPath());
    }

    public function setUseNamespace($useNamespace)
    {
        $this->_useNamespace = $useNamespace;
    }

}