<?php

/**
 * @method App_Application_Document_Obj _getDataObj()
 */
class App_Application_Document_View extends App_Application_Document_AbstractView
{
    protected $_actions = array('list', 'upload', 'insert', 'edit', 'update', 'cancel', 'changeReviewed');
    protected $_transferAdapterClass = 'Qs_File_Transfer_Adapter_Db';
    protected $_allowedExtensions = array(
        '.pdf', '.txt', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx', '.odt', '.ods', '.odp', '.png', '.jpg', '.jpeg',
    );

    protected function _isApplicant()
    {
        return (App_Application_Document_Obj::USER_TYPE_APPLICANT == $this->getConfig('userType'));
    }

    protected function _isReviewer()
    {
        return (App_Application_Document_Obj::USER_TYPE_REVIEWER == $this->getConfig('userType'));
    }

    protected function _initAction()
    {
        $dataObj = $this->_getDataObj();

        $userId = null;
        switch ($this->getConfig('userType')) {
            case App_Application_Document_Obj::USER_TYPE_APPLICANT:
                $userId = App_Application_User_Auth::getInstance()->getData('id');
                break;
            case App_Application_Document_Obj::USER_TYPE_REVIEWER:
                if (1 != count($this->getRestParams())) {
                    $this->_doc->display404();
                    return $this;
                }
                $userId = $this->getRestParam(0);
                if (!$dataObj->idAllowedApplication($userId, App_Application_Reviewer_Auth::getInstance()->getData('id'))) {
                    $this->_doc->display404();
                    return $this;
                }
                $this->_hasFilter = true;
                $this->_filterQueryDescriptionFormat = 'Search will be done by "Document Name" or "Document Description".';
                $dataObj->setHasFilter(true);
                $dataObj->setFilterFields(array('title', 'description'));
                break;
            default:
                throw new Exception('Unknown user type');
        }

        $dataObj->setApplicationUserId($userId);
        $dataObj->setUserType($this->getConfig('userType'));

        self::createDocumentsSymlinks($userId);

        parent::_initAction();

        if ($this->_action === 'upload') {
            if ($this->_isApplicant()
                && ($documentTypeId = Qs_Request::getGetValue('documentTypeId'))
                && ($documentType = $dataObj->getDocumentTypeById($documentTypeId))
            ) {
                $this->_formDefaults = $documentType;
                foreach ($this->_formDefaults as $item => &$value) {
                    $value = $value == '' ? '-' : $value;
                }
                $this->_formDefaults['documentTypeId'] = $documentTypeId;
                $this->_formDefaults['applicationUserId'] = $dataObj->getApplicationUserId();
            } else {
                $this->_doc->display404();
            }
        }
        return $this;
    }

    public function preDispatch(&$items)
    {
        parent::_initAction();

        if ($this->_action != 'list') {
            foreach ($items as $index => $item) {
                if ($item['type'] == 'HtmlBlock_') {
                    unset($items[$index]);
                }
                if ($item['type'] == 'Application_DeadlineNotice_') {
                    unset($items[$index]);
                }
            }
        }
        return $this;
    }

    /**
     * @param int|int[] $userId
     * @return bool
     */
    static public function createDocumentsSymlinks($userId)
    {
        if (!$userId) {
            return false;
        }

        if (!is_array($userId)) {
            $userId = array($userId);
        }

        $documentObj = new App_Application_Document_Obj();
        $documentPath = constant('WWW_PATH') . '/' . App_Application_Document_Obj::DOCUMENT_PATH;
        $documentAccessPath = constant('WWW_PATH') . '/' . App_Application_Document_Obj::DOCUMENT_ACCESS_PATH . '/' . session_id();

        foreach ($userId as $id) {
            $documents = $documentObj->getDocumentsByUserId($id);
            if ($documents && !is_dir($documentAccessPath)) {
                mkdir($documentAccessPath);
            }
            foreach ($documents as $document) {
                if (file_exists($documentPath . '/' . $document) && !file_exists($documentAccessPath . '/' . $document)) {
                    symlink($documentPath . '/' . $document, $documentAccessPath . '/' . $document);
                }
            }
        }

        return true;
    }

    protected function _addListItem($list = null, $template = 'list.tpl')
    {
        if (null == $list) {
            $list = $this->list;
        }

        $list->documentUploadUrl = $this->url(array('action' => 'upload'));
        $list->documentEditUrl = $this->url(array('action' => 'edit'));

        return parent::_addListItem($list, $template);
    }

    /**
     * @param Qs_ViewController_List $list
     *
     * @return $this
     */
    protected function _bindListColumns($list)
    {
        parent::_bindListColumns($list);

        if ($this->_isApplicant()) {
            $list->addColumn('uploads', 'uploads', array('title' => 'Upload', 'attribs' => 'class=text-center'));
        }

        if ($this->_isReviewer()) {
            $this->_bindReviewerListColumns($list);
        }

        return $this;
    }

    protected function _updatePageHeader(array $data)
    {
        $title = 'Upload Document - ' . $data['title'];
        $this->_doc->setHeader($title);
        $this->_doc->setTitle($title);
        return $this;
    }

    protected function _doList()
    {
        if (App_Application_Document_Obj::USER_TYPE_REVIEWER == $this->_getDataObj()->getUserType()) {
            $this->_doc->appendHeader(' - ' . $this->_getDataObj()->getApplicationUserData('schoolName'));
        }

        return parent::_doList();
    }

    protected function _doUpload()
    {
        parent::_doNew();
        $this->_updatePageHeader($this->getFormDefaults());
        return $this;
    }

    protected function _doEdit()
    {
        parent::_doEdit();
        $this->_updatePageHeader($this->_getDataObj()->getData());
        return $this;
    }

    protected function _doUpdate()
    {
        parent::_doUpdate();
        $this->_updatePageHeader($this->_getDataObj()->getData());
        return $this;
    }

    protected function _getEditForm()
    {
        $form = parent::_getEditForm();
        $this->_setStaticValues($form);

        return $form;
    }

    protected function _getNewForm()
    {
        $form = parent::_getNewForm();
        $this->_setStaticValues($form);

        return $form;
    }

    protected function _setStaticValues(Qs_Form $form)
    {
        if ('POST' == $_SERVER['REQUEST_METHOD'] && ($documentTypeId = Qs_Request::getPostValue('documentTypeId'))) {
            $documentType = $this->_getDataObj()->getDocumentTypeById($documentTypeId);
            $form->getElement('title')->setValue($documentType['title']);
            $form->getElement('description')->setValue($documentType['description']);
        }
        return $this;
    }

    protected function _bindFormFields(Qs_Form $form)
    {
        $form->addElement('static', 'title', array('label' => 'Document Name'));
        $form->addElement('static', 'description', array('label' => 'Description'));
        $form->addElement('hidden', 'documentTypeId');
        $form->addElement('hidden', 'applicationUserId');
        $form->addElement(
            'extendedFile',
            'file',
            array(
                'label'       => 'File',
                'destination' => constant('WWW_PATH') . '/' . App_Application_Document_Obj::DOCUMENT_PATH,
                'downloadUrl' => constant('BASE_URL') . '/' . App_Application_Document_Obj::DOCUMENT_ACCESS_PATH . '/'
                               . session_id() . '/' . $this->_getDataObj()->getData('file'),
                'required'    => true,
                'description' => 'Please note there is a file limit of 10MB '
                                 . 'and allowed formats are: ' . implode(', ', $this->_allowedExtensions)
            )
        );

        $extensions = array();
        foreach ($this->_allowedExtensions as $ext) {
            $extensions[] = trim($ext, '.');
        }
        $extensionValidator = new Zend_Validate_File_Extension($extensions);
        $extensionValidator->setMessage(
            "File format is not allowed",
            Zend_Validate_File_Extension::FALSE_EXTENSION
        );
        $form->getElement('file')->addValidator($extensionValidator);

        $sizeValidator = new Zend_Validate_File_Size(array('max' => '10MB'));
        $sizeValidator->setMessage(
            "Maximum allowed file size is '%max%' but '%size%' detected",
            Zend_Validate_File_Size::TOO_BIG
        );
        $form->getElement('file')->addValidator($sizeValidator);

        return $this;
    }

    protected function _bindFormButtons($form)
    {
        parent::_bindFormButtons($form);
        $form->getElement('btnSubmit')->setLabel('Upload');

        return $this;
    }

    public function fillConfigForm($form)
    {
        $form->addElement(
            'select',
            'userType',
            array(
                'label'         => 'User Type',
                'multiOptions'  => array(
                    App_Application_Document_Obj::USER_TYPE_APPLICANT => 'Applicant',
                    App_Application_Document_Obj::USER_TYPE_REVIEWER  => 'Reviewer'
                ),
            )
        );
        return $this;
    }

    /**
     * @param Qs_Form $form
     *
     * @return $this|App_Application_Document_View
     */
    protected function _bindFilterFields($form)
    {
        parent::_bindFilterFields($form);

        $form->addElement(
            'select',
            'status',
            array(
                'label'        => 'Filter By Document Status:',
                'multiOptions' => array(
                    '' => 'All Documents',
                    App_Application_Document_Obj::STATUS_AWAITING_REVIEW  => 'Awaiting Review',
                    App_Application_Document_Obj::STATUS_REVIEW_COMPLETED => 'Review Completed',
                )
            )
        );

        return $this;
    }
}