<?php

class App_Admin_Tool_Project_Provider_Module extends App_Admin_Tool_Project_Provider_Abstract
{
    const MODULE_DIRECTORY_LEVEL = 2;

    const PROVIDER_ALIAS = 'module';
    const PROVIDER_TITLE = 'Module';

    /** Directories */
    const ABSTRACT_DIRECTORY_NAME = 'Abstract';
    const ADMIN_DIRECTORY_NAME = 'Admin';
    const FORM_DIRECTORY_NAME = 'Form';

    /** Files */
    const ABSTRACT_FILE_NAME = 'Abstract.php';
    const OBJ_FILE_NAME = 'Obj.php';
    const VIEW_FILE_NAME = 'View.php';
    const LIST_FILE_NAME = 'List.php';
    const CONFIG_FILE_NAME = 'config.php';

    const NEW_FORM_FILE_NAME = 'New.php';
    const EDIT_FORM_FILE_NAME = 'Edit.php';
    const REORDER_FORM_FILE_NAME = 'Reorder.php';

    const LIST_TPL_FILE_NAME = 'list.tpl';
    const VIEW_TPL_FILE_NAME = 'view.tpl';

    const MODULE_APP_CONTAINER = 'App';
    const MODULE_LANGUAGE_CONTAINER = 'language';
    const MODULE_TPL_CONTAINER = 'tpl';

    const MODULE_JS_APP_CONTAINER = 'js/app';

    const TABLE_PAGE_ITEM_TYPE = 'DPageItemType';
    const ITEM_TYPE_NEW_SORTER_STEP = 10;

    const ERROR_INCORRECT_MODULE_NAME = 0;
    const ERROR_MODULE_IS_EXISTS = 1;
    const ERROR_TABLE_IS_EXISTS = 2;

    const SUCCESS_GENERATION = 10;

    protected static $_messageMap = array(
        self::SUCCESS_GENERATION => 'Module "%s" has been generated!'
    );

    protected $_errorMap = array(
        self::ERROR_INCORRECT_MODULE_NAME => 'Please set module name',
        self::ERROR_MODULE_IS_EXISTS      => 'Module is exists. Please full remove old files',
        self::ERROR_TABLE_IS_EXISTS       => 'Database table is exists. Please full remove old table'
    );

    public function generate()
    {
        if (empty($this->_name)) {
            throw new Qs_Db_Exception($this->_errorMap[self::ERROR_INCORRECT_MODULE_NAME]);
        }
        if ($this->_checkModuleExists()) {
            throw new Qs_Db_Exception($this->_errorMap[self::ERROR_MODULE_IS_EXISTS]);
        }
        if ($this->_checkTableExists()) {
            throw new Qs_Db_Exception($this->_errorMap[self::ERROR_TABLE_IS_EXISTS]);
        }
        $this->_generateModuleFilesystem();
        if (in_array('jsPart', $this->_params['options'])) {
            $this->_generateJS();
        }
        if (in_array('adminPart', $this->_params['options'])) {
            $this->_updateSitemapXML();
        }
        $this->_generateDB();
        return $this;
    }

    protected function _generateModuleFilesystem()
    {
        $architecture = $this->_getArchitecture();
        $buildDirectory = new App_Admin_Tool_Project_Context_BuildDirectory();
        $buildFile = new App_Admin_Tool_Project_Context_BuildFile();
        foreach ($architecture as $directory => $files) {
            $directoryPath = BASE_PATH . DIRECTORY_SEPARATOR . $directory;
            $buildDirectory->setFullPath($directoryPath);
            $buildDirectory->create();
            foreach ($files as $file) {
                $buildFile->setBaseDirectory($directory);
                $buildFile->setFilesystemName($file);
                $buildFile->setModuleName($this->_name);
                $buildFile->setParams($this->_params);
                if ($this->_params['useNameSpace'] == 'y') {
                    $buildFile->setUseNamespace(true);
                }
                $buildFile->generate();
            }
        }
        return $this;
    }

    protected function _generateJS()
    {
        $filesystemName = lcfirst($this->_jsObjectName) . '.' . App_Admin_Tool_Project_Context_BuildFile::JS_FILE_EXTENSION;
        $buildFile = new App_Admin_Tool_Project_Context_BuildFile();
        $baseDirectory = ($this->_params['directory'] != '')
            ? self::MODULE_JS_APP_CONTAINER . '/' . strtolower($this->_params['directory'])
            : self::MODULE_JS_APP_CONTAINER;

        $baseDirectory .= '/' . lcfirst($this->_name);

        $buildFile->setBaseDirectory($baseDirectory);
        $buildFile->setFilesystemName($filesystemName);
        $buildFile->setFullPath(WWW_PATH . '/' . $baseDirectory . '/' . $filesystemName);
        $buildFile->setModuleName($this->_name);
        $buildFile->generate();
        return $this;
    }

    protected function _updateSitemapXML()
    {
        $moduleName = $this->_name;
        $sitemap = BASE_PATH . '/sitemap.xml';
        $sitemapObj = new SimpleXMLElement($sitemap, 0, true);

        /** @var SimpleXMLElement $sitemapModuleContainer */
        $sitemapModuleContainer = $sitemapObj->admin;
        if (strlen($sitemapModuleContainer->{$moduleName}->getName())) {
            unset($sitemapModuleContainer->{$moduleName});
        }
        $sections = explode(DIRECTORY_SEPARATOR, $this->_params['directory']);
        $parentSection = $sitemapModuleContainer;
        foreach ($sections as $section) {
            if (!empty($section)) {
                if (empty($parentSection->sub)) {
                    $parentSection = $parentSection->addChild('sub');
                } else {
                    $parentSection = $parentSection->sub;
                }
                if (!strlen($parentSection->{strtolower($section)}->getName())) {
                    $parentSection = $parentSection->addChild(strtolower($section));
                    $parentSection->addAttribute('showInMenu', 'y');
                    $parentSection->addAttribute('menuTitle', $section);
                } else {
                    $parentSection = $parentSection->{strtolower($section)};
                }
            }
        }
        if ($this->_params['directory'] != '' && $sitemapObj->admin->sub != $parentSection) {
            $parentSection = $parentSection->addChild('sub');
        } else if ($this->_params['directory'] == ''){
            $parentSection = $parentSection->sub;
        }
        $parentSection = $parentSection->addChild($moduleName);
        $parentSection->addAttribute('showInMenu', 'y');
        $parentSection->addAttribute('menuTitle', $moduleName);

        $moduleItem = $parentSection->addChild('item');
        if ($this->_params['useNameSpace'] == 'y') {
            $type = str_replace(DIRECTORY_SEPARATOR, '\\', $this->_params['directory']) . $moduleName . '\Admin\\';
        } else {
            $type = str_replace(DIRECTORY_SEPARATOR, '_', $this->_params['directory']) . $moduleName . '_Admin_';
        }
        $moduleItem->addAttribute('type', $type);

        $sitemapObj->saveXML($sitemap);
        return $this;
    }

    protected function _generateDB()
    {
        $files = array(
            'schema.sql',
            'data.sql',
        );
        $moduleName = $this->_name;
        $db = Qs_Db::getInstance();
        $dbConfig = Qs_Db::getConfig()->toArray();
        $tableList = $db->listTables();
        $tableName = $dbConfig['database']['tablePrefix'] . (empty($this->_params['tableAlias'])
            ? $moduleName
            : $this->_params['tableAlias']);

        $tablePageItemType = $dbConfig['database']['tablePrefix'] . self::TABLE_PAGE_ITEM_TYPE;

        if ($this->_params['useNameSpace'] == 'y') {
            $itemType = str_replace(DIRECTORY_SEPARATOR, '\\\\', $this->_params['directory']) . $moduleName . '\\\\';
        } else {
            $itemType = str_replace(DIRECTORY_SEPARATOR, '_', $this->_params['directory']) . $moduleName . '_';
        }
        $itemTitle = $moduleName;
        $itemSorter = (int) $db->fetchOne($db->select()->from($tablePageItemType, new Zend_Db_Expr('MAX(sorter)')))
                    + self::ITEM_TYPE_NEW_SORTER_STEP;

        if (in_array($tableName, $tableList)) {
            throw new Qs_Db_Exception('Table "' . $tableName . '" is exists');
        }

        foreach ($files as $file) {
            $fullFilePath = dirname(__FILE__) . '/Module/Db/' . $file;
            if (file_exists($fullFilePath)) {
                try {
                    $db->beginTransaction();
                    $query = '';
                    foreach (new SplFileObject($fullFilePath) as $line) {
                        $params  = compact('tableName', 'tablePageItemType', 'itemType', 'itemTitle', 'itemSorter');
                        $query .= str_replace(
                            array_map('self::wrapSqlParams', array_keys($params)),
                            array_values($params),
                            $line
                        );
                        if (substr(rtrim($query), -1) == ';') {
                            $db->query($query);
                            $query = '';
                        }
                    }
                    $db->commit();
                } catch(Exception $e) {
                    $db->rollback();
                    throw new Qs_Db_Exception($e->getMessage());
                }
            }
        }

        return $this;
    }

    protected function _getArchitecture()
    {
        $moduleAppPath = self::MODULE_APP_CONTAINER . DIRECTORY_SEPARATOR . $this->_params['directory']
            . $this->getModuleName();
        $moduleTplPath = self::MODULE_TPL_CONTAINER . DIRECTORY_SEPARATOR . $this->_params['directory']
            . $this->getModuleName();
        if ($this->_params['useNameSpace'] == 'y') {
            $result = array(
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME */
                $moduleAppPath => array(
                    self::CONFIG_FILE_NAME,
                    self::OBJ_FILE_NAME,
                    self::VIEW_FILE_NAME,
                    self::ABSTRACT_DIRECTORY_NAME . self::OBJ_FILE_NAME,
                    self::ABSTRACT_DIRECTORY_NAME . self::VIEW_FILE_NAME,
                    self::ABSTRACT_DIRECTORY_NAME . self::LIST_FILE_NAME,
                    $this->getModuleName(). self::LIST_FILE_NAME
                )
            );

            if (in_array('adminPart', $this->_params['options'])) {
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME/Admin */
                $result[$moduleAppPath . DIRECTORY_SEPARATOR . self::ADMIN_DIRECTORY_NAME] = array(
                    self::OBJ_FILE_NAME,
                    self::VIEW_FILE_NAME,
                    $this->getModuleName(). self::LIST_FILE_NAME
                );
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME/Admin/Form */
                $result[$moduleAppPath . DIRECTORY_SEPARATOR . self::ADMIN_DIRECTORY_NAME . DIRECTORY_SEPARATOR .
                    self::FORM_DIRECTORY_NAME] = array(
                    $this->_getFormFileNameForNamespace(self::ABSTRACT_FILE_NAME),
                    $this->_getFormFileNameForNamespace(self::NEW_FORM_FILE_NAME),
                    $this->_getFormFileNameForNamespace(self::EDIT_FORM_FILE_NAME),
                    $this->_getFormFileNameForNamespace(self::REORDER_FORM_FILE_NAME)
                );
            }

            $tplArray = array();
            if (in_array('listTpl', $this->_params['options'])) {
                $tplArray[] = self::LIST_TPL_FILE_NAME;
            }
            if (in_array('viewTpl', $this->_params['options'])) {
                $tplArray[] = self::VIEW_TPL_FILE_NAME;
            }
            if (!empty($tplArray)) {
                /** @todo languages */
                /** path: /tpl/MODULE_DIRECTORY/MODULE_NAME */
                $result[$moduleTplPath] = $tplArray;
            }
        } else {
            $result = array(
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME */
                $moduleAppPath => array(
                    self::CONFIG_FILE_NAME,
                    self::OBJ_FILE_NAME,
                    self::VIEW_FILE_NAME,
                    self::LIST_FILE_NAME,
                ),
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME/Abstract */
                $moduleAppPath . DIRECTORY_SEPARATOR . self::ABSTRACT_DIRECTORY_NAME => array(
                    self::OBJ_FILE_NAME,
                    self::VIEW_FILE_NAME,
                    self::LIST_FILE_NAME
                ),
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME/Admin */
                $moduleAppPath . DIRECTORY_SEPARATOR . self::ADMIN_DIRECTORY_NAME => array(
                    self::OBJ_FILE_NAME,
                    self::VIEW_FILE_NAME,
                    self::LIST_FILE_NAME
                ),
                /** path: /App/MODULE_DIRECTORY/MODULE_NAME/Admin/Form */
                $moduleAppPath . DIRECTORY_SEPARATOR . self::ADMIN_DIRECTORY_NAME . DIRECTORY_SEPARATOR .
                    self::FORM_DIRECTORY_NAME => array(
                    self::ABSTRACT_FILE_NAME,
                    self::NEW_FORM_FILE_NAME,
                    self::EDIT_FORM_FILE_NAME,
                    self::REORDER_FORM_FILE_NAME
                ),
                /** @todo languages */
                /** path: /tpl/MODULE_DIRECTORY/MODULE_NAME */
                $moduleTplPath => array(
                    self::LIST_TPL_FILE_NAME,
                    self::VIEW_TPL_FILE_NAME
                )
            );
        }
        return $result;
    }

    protected function _getFormFileNameForNamespace($name, $extension = '.php')
    {
        return str_replace($extension, '', $name) . self::FORM_DIRECTORY_NAME . $extension;
    }

    protected function _checkModuleExists($moduleName = null)
    {
        $moduleContext = new App_Admin_Tool_Project_Context_BuildDirectory(array(
            'baseDirectory'  => self::MODULE_APP_CONTAINER,
            'filesystemName' => $moduleName ? $moduleName : $this->getModuleName()
        ));
        return $moduleContext->exists();
    }

    protected function _checkTableExists($tableAlias = null)
    {
        $db = Qs_Db::getInstance();
        if (empty($tableAlias)) {
            $tableAlias = (empty($this->_params['tableAlias'])
                ? $this->_params['name']
                : $this->_params['tableAlias']);
        }
        $tables = $db->query('SHOW TABLES LIKE "' . Qs_Db::getTableName($tableAlias) . '"')->fetchAll();
        return !empty($tables);
    }

    public function getWorkflowAreaForm(array $options)
    {
        $formClassName = __CLASS__ . '_Form_Generate';
        /** @var $form Qs_Form */
        $form = new $formClassName($options);
        $form->setDefaults();
        return $form;
    }

    public static function wrapSqlParams($value)
    {
        return '{{' . $value . '}}';
    }

    public function setModuleName($name)
    {
        $this->_name = ucfirst(preg_replace('/[^A-Za-z0-9]/i', '', $name));
        return $this;
    }

    public function setJsObjectName($name)
    {
        $this->_jsObjectName = ucfirst($name);
        return $this;
    }

    public function getModuleName()
    {
        return $this->_name;
    }

    public static function getMessage($key)
    {
        if (array_key_exists($key, self::$_messageMap)) {
            return self::$_messageMap[$key];
        }
        return false;
    }

    public function validateForm($data)
    {
        $errors = array();
        if ($this->_checkModuleExists($data['name'])) {
            $errors['name'] = $this->_errorMap[self::ERROR_MODULE_IS_EXISTS];
        }
        $tableAlias = empty($data['tableAlias']) ? $data['name'] : $data['tableAlias'];
        if ($this->_checkTableExists($tableAlias)) {
            $errors['tableAlias'] = $this->_errorMap[self::ERROR_TABLE_IS_EXISTS];
        }
        return (empty($errors)) ? true : $errors;
    }
}