AbstractBuildForm.php

<?php
/**
 * Created by PhpStorm.
 * User: crose
 * Date: 1/6/16
 * Time: 8:02 PM
 */
namespace qfq;

use qfq;
use qfq\store\Store;
use qfq\exceptions\UserException;
use qfq\helper\OnArray;

require_once(__DIR__ . '/../qfq/store/Store.php');
require_once(__DIR__ . '/../qfq/Constants.php');
require_once(__DIR__ . '/../qfq/exceptions/DbException.php');
require_once(__DIR__ . '/../qfq/exceptions/UserException.php');
require_once(__DIR__ . '/../qfq/Database.php');

/**
 * Class AbstractBuildForm
 * @package qfq
 */
abstract class AbstractBuildForm {
    protected $formSpec = array();  // copy of the loaded form
    protected $feSpecAction = array(); // copy of all formElement.class='action' of the loaded form
    protected $feSpecNative = array(); // copy of all formElement.class='native' of the loaded form
    protected $store = null;
    protected $evaluate = null;
    protected $buildElementFunctionName = array();
    protected $pattern = array();
    protected $wrap = array();

    public function __construct(array $formSpec, array $feSpecAction, array $feSpecNative) {
        $this->formSpec = $formSpec;
        $this->feSpecAction = $feSpecAction;
        $this->feSpecNative = $feSpecNative;
        $this->store = Store::getInstance();
        $this->db = new Database();
        $this->evaluate = new Evaluate($this->store, $this->db);
//        $sip = $this->store->getVar(CLIENT_SIP, STORE_CLIENT);

        $this->fillWrap();

        $this->buildElementFunctionName = [
            'checkbox' => 'Checkbox',
            'dateJQW' => 'DateJQW',
            'datetimeJQW' => 'DateJQW',
            'email' => 'Input',
            'gridJQW' => 'GridJQW',
            'hidden' => 'Hidden',
            'input' => 'Input',
            'note' => 'Note',
            'password' => 'Input',
            'radio' => 'Radio',
            'select' => 'Select',
            'subrecord' => 'Subrecord',
            'upload' => 'File',
            'url' => 'Input'
        ];

        $this->inputCheckPattern = [
            'min|max' => 'min="%s"|max="%s"',
            'pattern' => 'pattern="%s"',
            'number' => 'pattern="^[0-9]*$"',
            'email' => 'pattern="^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$"'
        ];

    }

    abstract public function fillWrap();

    /**
     * @return string The whole form as HTML
     * @throws exceptions\CodeException
     * @throws exceptions\DbException
     */
    public function process() {

        $html = $this->head();

        $filter = $this->getProcessFilter();

        if ($this->formSpec['multiMode'] !== 'none') {

            $parentRecords = $this->db->sql($this->formSpec['multiSql']);
            foreach ($parentRecords as $row) {
                $this->store->setVarArray($row, STORE_PARENT_RECORD);
                $html .= $this->elements($row['_id'], $filter);
            }
        } else {
            $html .= $this->elements($this->store->getVar(SIP_RECORD_ID, STORE_SIP), $filter);
        }

        // close the form
        $html .= $this->tail();

        $html .= $this->doSubrecords();

        return $html;
    }

    abstract public function head();

    abstract public function getProcessFilter();

    /**
     * @param $recordId
     * @param string $filter FORM_ELEMENTS_NATIVE | FORM_ELEMENTS_SUBRECORD | FORM_ELEMENTS_NATIVE_SUBRECORD
     * @return string
     * @throws exceptions\CodeException
     * @throws exceptions\DbException
     */
    public function elements($recordId, $filter = FORM_ELEMENTS_NATIVE) {
        $html = '';

        // get current data record
        if ($recordId > 0 && $this->store->getVar('id', STORE_RECORD) === false) {
            $row = $this->db->sql("SELECT * FROM " . $this->formSpec['tableName'] . " WHERE id = ?", ROW_REGULAR, array($recordId));
            $this->store->setVarArray($row[0], STORE_RECORD);
        }

        // Iterate over all FormElements
        foreach ($this->feSpecNative as $fe) {

            if (($filter === FORM_ELEMENTS_NATIVE && $fe['type'] === 'subrecord') ||
                ($filter === FORM_ELEMENTS_SUBRECORD && $fe['type'] !== 'subrecord')
            ) {
                continue; // skip this FE
            }

            // Log / Debug
            $this->store->setVar(SYSTEM_FORM_ELEMENT, $fe['name'] . ' / ' . $fe['id'], STORE_SYSTEM);

            // evaluate current FormElement
            $formElement = $this->evaluate->parseArray($fe);

            // Get default value
            $value = $formElement['value'] === '' ? $this->store->getVar($formElement['name']) : $value = $formElement['value'];

            $htmlFormElementId = $formElement['name'] . ':' . $recordId;

            $html .= $this->wrapElement($htmlFormElementId, $formElement, $value);
        }

        return $html;
    }

    abstract public function wrapElement($htmlFormElementId, $formElement, $value);

    abstract public function tail();

    abstract public function doSubrecords();

    /**
     * @param $item
     * @param $value
     * @param bool|false $flagOmitEmpty
     * @return string
     */
    public function wrapItem($item, $value, $flagOmitEmpty = false) {
        if ($flagOmitEmpty && $value === "")
            return '';
        return $this->wrap[$item][WRAP_SETUP_START] . $value . $this->wrap[$item][WRAP_SETUP_END];
    }

    /**
     * @param array $htmlFormElementId
     * @param $label
     * @return string
     */
    public function buildLabel($htmlFormElementId, $label) {
        $html = '<label for="' . $htmlFormElementId . '">' . $label . '</label>';

        return $html;
    }

    /**
     * Builds HTML 'input' element.
     * Format: <input name="$htmlFormElementId" <type="email|input|password|url" [autocomplete="autocomplete"] [autofocus="autofocus"]
     *           [maxlength="$maxLength"] [placeholder="$placeholder"] [size="$size"] [min="$min"] [max="$max"]
     *           [pattern="$pattern"] [readonly="readonly"] [required="required"] [disabled="disabled"] value="$value">
     *
     *
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     * @throws UserException
     */
    public function buildInput(array $formElement, $htmlFormElementId, $value) {

        $attribute = $this->getAttribute('name', $htmlFormElementId);
        $htmlTag = '<input';
        $htmlTagClosing = '';

        // Check for input type 'textarea'
        $colsRows = explode(',', $formElement['size']);
        if (count($colsRows) === 2) {
            $htmlTag = '<textarea';
            $htmlTagClosing = '</textarea>';

            $attribute .= $this->getAttribute('cols', $colsRows[0]);
            $attribute .= $this->getAttribute('rows', $colsRows[1]);

        } else {
            $attribute .= $this->getAttributeList($formElement, ['type', 'size', 'maxLength']);
        }
        // 'maxLength' needs an upper 'L': naming convention for DB tables!
        $attribute .= $this->getAttributeList($formElement, ['autocomplete', 'autofocus', 'placeholder']);

        if ($formElement['type'] === 'email' && $formElement['checkType'] === '')
            $formElement['checkType'] = 'email';

        $attribute .= $this->getInputCheckPattern($formElement['checkType'], $formElement['checkPattern']);

        $attribute .= $this->getAttributeMode($formElement);

        $attribute .= $this->getAttribute('value', htmlentities($value), false);

        return "$htmlTag $attribute>$htmlTagClosing";
    }

    /**
     * @param $type
     * @param $value
     * @param bool|false $flagOmitEmpty
     * @return string
     */
    private function getAttribute($type, $value, $flagOmitEmpty = true) {
        if ($flagOmitEmpty && $value === "")
            return '';

        return "$type=\"$value\" ";
    }

    /**
     * Builds a HTML attribute list, based on  $attributeList.
     * E.g.: attributeList: [ 'type', 'autofocus' ]
     *       generates: 'type="$formElement['type']" autofocus="$formElement['autofocus']" '
     *
     * @param array $formElement
     * @param array $attributeList
     * @return string
     */
    private function getAttributeList(array $formElement, array $attributeList) {
        $attribute = '';
        foreach ($attributeList as $item) {
            if (isset($formElement[$item]))
                $attribute .= $this->getAttribute(strtolower($item), $formElement[$item]);
        }
        return $attribute;
    }

    /**
     * Construct HTML Input attribute for Client Validation:
     *   type     data                      predefined
     *   -------  -----------------------   -------------------------------------------------------------------------------
     *   min|max  <min value>|<max value>   min="%s"|max="%s"
     *   pattern  <regexp>                  pattern="%s"
     *   number   -                         pattern="^[0-9]*$"
     *   email    -                         pattern="^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$"
     *
     * For 'min|max' and 'pattern' the 'data' will be injected in the attribute string vai '%s'.
     *
     * @param $type
     * @param $data
     * @return string
     */
    private function getInputCheckPattern($type, $data) {
        if ($type === '') {
            return '';
        }

        $attribute = '';

        $arrAttr = explode("|", $type);
        $arrData = explode("|", $data);

        for ($ii = 0; $ii < count($arrAttr); $ii++) {
            if ($arrAttr[$ii])
                $attribute .= str_replace('%s', $arrData[$ii], $arrAttr[$ii]) . ' ';
        }
        return $attribute;
    }

    /**
     * @param array $formElement
     * @return string
     * @throws UserException
     */
    private function getAttributeMode(array $formElement) {
        $attribute = '';

        switch ($formElement['mode']) {
            case 'show':
                break;
            case 'readonly':
                $attribute .= $this->getAttribute('readonly', 'readonly');
                break;
            case 'required':
                $attribute .= $this->getAttribute('required', 'required');
                break;
            case 'lock':
                break;
            case 'disabled':
                $attribute .= $this->getAttribute('disabled', 'disabled');
                break;
            default:
                $this->store->setVar(SYSTEM_FORM_ELEMENT, $formElement['name'] . ' / ' . $formElement['id'], STORE_SYSTEM);
                $this->store->setVar(SYSTEM_FORM_ELEMENT_COLUMN, 'mode', STORE_SYSTEM);
                throw new UserException("Unexpected mode '" . $formElement['mode'] . "'");
                break;
        }
        return $attribute;
    }

    /**
     * Builds HTML 'checkbox' element.
     *
     * Checkboxes will only be submitted, if they are checked. Therefore, a hidden element with the unchecked value will be transfered first.
     *
     * Format: <input type="hidden" name="$htmlFormElementId" value="$valueUnChecked">
     *         <input name="$htmlFormElementId" type="checkbox" [autofocus="autofocus"]
     *            [readonly="readonly"] [required="required"] [disabled="disabled"] value="<value>" [checked="checked"] >
     *
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     * @throws UserException
     */
    public function buildCheckbox(array $formElement, $htmlFormElementId, $value) {
        $itemKey = array();
        $itemValue = array();

        // Fill $itemKey & $itemValue
        $this->extractKeyValueList($formElement, $itemKey, $itemValue);

        // Get fallback, if 'checkBoxMode' is not defined:
        if (!isset($formElement['checkBoxMode'])) {
            // This fallback is problematic if 'set' or 'enum' has 2 elements: defaults to single but maybe multi is meant.
            $formElement['checkBoxMode'] = (count($itemKey) > 2) ? 'multi' : 'single';
        }

        if ($formElement['checkBoxMode'] === 'multi') {
            $htmlFormElementId .= '[]';
        } else {
            // Fill meaningfull defaults to parameter:checked|unchecked
            $this->prepareCheckboxCheckedUncheckedValue($itemKey, $formElement);
        }

        $attributeBase = $this->getAttributeMode($formElement);
        $attributeBase .= $this->getAttribute('name', $htmlFormElementId);
        $attributeBase .= $this->getAttribute('type', $formElement['type']);

        switch ($formElement['checkBoxMode']) {
            case 'single':
                $html = $this->buildCheckboxSingle($formElement, $htmlFormElementId, $attributeBase, $value);
                break;
            case 'multi';
                $html = $this->buildCheckboxMulti($formElement, $htmlFormElementId, $attributeBase, $value, $itemKey, $itemValue);
                break;
            default:
                throw new UserException('checkBoxMode: \'' . $formElement['checkBoxMode'] . '\' is unknown.', ERROR_CHECKBOXMODE_UNKNOWN);
        }

        return $html;
    }

    /**
     * Look for key/value list in `sql1`, `parameter:itemList`, column definition (in this order, first match counts)
     * Copies the found keys to &$itemKey and the values to &$itemValue
     *
     * @param array $formElement
     * @param $itemKey
     * @param $itemValue
     * @throws UserException
     */
    private function extractKeyValueList(array $formElement, &$itemKey, &$itemValue) {
        $fieldType = '';
        $itemKey = array();
        $itemValue = array();

        $itemValue = $this->getItemsForEnumOrSet($formElement['name'], $fieldType);

        if (is_array($formElement['sql1'])) {
            $keys = array_keys($formElement['sql1'][0]);
            $itemKey = array_column($formElement['sql1'], 'id');

            // If there is no column 'id' and at least two columns in total
            if (count($itemKey) === 0 && count($keys) >= 2) {
                $itemKey = array_column($formElement['sql1'], $keys[0]);
            }

            $itemValue = array_column($formElement['sql1'], 'label');
            // If there is no column 'label' (e.g.: SHOW tables)
            if (count($itemValue) === 0) {
                $idx = count($keys) == 1 ? 0 : 1;
                $itemValue = array_column($formElement['sql1'], $keys[$idx]);
            }

        } elseif (isset($formElement['itemList'])) {
            $arr = qfq\helper\KeyValueStringParser::parse($formElement['itemList'], ':', ',', IF_VALUE_EMPTY_COPY_KEY);
            $itemValue = array_values($arr);
            $itemKey = array_keys($arr);
        } elseif ($fieldType === 'enum' || $fieldType === 'set') {
            // already done at the beginning with '$this->getItemsForEnumOrSet($formElement['name'], $fieldType);'
        } else {
            throw new UserException("Missing definition (- nothing found in 'sql1', 'parameter:itemValues', 'enum-' or 'set-definition'", ERROR_MISSING_ITEM_VALUES);
        }

        if (count($itemKey) === 0) {
            $itemKey = $itemValue;
        }
    }

    /**
     * @param $column
     * @param $fieldType
     * @return array
     * @throws UserException
     */
    private function getItemsForEnumOrSet($column, &$fieldType) {

        // Get column definition
        $fieldTypeDefinition = $this->store->getVar($column, STORE_TABLE_COLUMN_TYPES);

        if ($fieldTypeDefinition === false) {
            throw new UserException("Column '$column' unknown in table '" . $this->formSpec['tableName'] . "'", ERROR_UNKNOWN_COLUMN);
        }

        $length = strlen($fieldTypeDefinition);

        // enum('...   set('
        switch (substr($fieldTypeDefinition, 0, 4)) {
            case 'enum':
                $startPosition = 5;
                break;
            case 'set(':
                $startPosition = 4;
                break;
            default:
                $fieldType = 'string';
                return array();
        }

        // enum('a','b','c', ...)   >> [ 'a', 'b', 'c', ... ]
        // set('a','b','c', ...)   >> [ 'a', 'b', 'c', ... ]
        $items = OnArray::trimArray(explode(',', substr($fieldTypeDefinition, $startPosition, $length - $startPosition - 1)), "'");
        $fieldType = substr($fieldTypeDefinition, 0, $startPosition - 1);

        return $items;
    }

    /**
     * For CheckBox's with only one checkbox: if no parameter:checked|unchecked is defined, take defaults:
     *    checked: first Element in $itemKey
     *  unchecked: ''
     *
     * @param array $itemKey
     * @param array $formElement
     * @throws UserException
     */
    private function prepareCheckboxCheckedUncheckedValue(array $itemKey, array &$formElement) {

        if (!isset($formElement['checked'])) {
            if (isset($itemKey[0])) {
                // First element in $itemKey list
                $formElement['checked'] = $itemKey[0];
            } else {
                // Take column default value
                $formElement['checked'] = $this->store->getVar($formElement['name'], STORE_TABLE_DEFAULT);
            }
        }

        // unchecked
        if (!isset($formElement['unchecked'])) {
            if (isset($itemKey[1])) {
                $formElement['unchecked'] = ($itemKey[0] === $formElement['checked']) ? $itemKey[1] : $itemKey[0];
            } else {
                $formElement['unchecked'] = '';
            }
        }

        if ($formElement['checked'] === $formElement['unchecked']) {
            throw new UserException('FormElement: type=checkbox - checked and unchecked can\'t be the same: ' . $formElement['checked'], ERROR_CHECKBOX_EQUAL);
        }

    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $attribute
     * @param $value
     * @return string
     */
    public function buildCheckboxSingle(array $formElement, $htmlFormElementId, $attribute, $value) {

        $attribute .= $this->getAttribute('name', $htmlFormElementId);
        $attribute .= $this->getAttribute('value', $formElement['checked'], false);
        if ($formElement['checked'] === $value) {
            $attribute .= $this->getAttribute('checked', 'checked');
        }

        $attribute .= $this->getAttributeList($formElement, ['autofocus']);

        $html = $this->buildHidden($formElement, $htmlFormElementId, $formElement['unchecked']);

        $html .= '<input ' . $attribute . '>';
        if (isset($formElement['label2'])) {
            $html .= $formElement['label2'];
        }

        return $html;
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     */
    public function buildHidden(array $formElement, $htmlFormElementId, $value) {
        return '<input type="hidden" name="' . $htmlFormElementId . '" value="' . htmlentities($value) . '">';
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $attributeBase
     * @param $value
     * @param $itemKey
     * @param $itemValue
     * @return string
     */
    public function buildCheckboxMulti(array $formElement, $htmlFormElementId, $attributeBase, $value, $itemKey, $itemValue) {
        // Defines which of the checkboxes will be checked.
        $values = explode($value, ',');

        $attributeBase .= $this->getAttribute('name', $htmlFormElementId);

        $html = $this->buildHidden($formElement, $htmlFormElementId, $value);

        $flagFirst = true;
        $ii = 0;
        $jj = 0;
        foreach ($itemKey as $item) {
            $ii++;
            $jj++;
            $attribute = $attributeBase;
            if ($flagFirst) {
                $flagFirst = false;
                if (isset($formElement['autofocus']))
                    $attribute .= $this->getAttribute('autofocus', $formElement['autofocus']);
            }
            $attribute .= $this->getAttribute('value', $item);
            if ($item === $values[$jj]) {
                $attribute .= $this->getAttribute('checked', 'checked');
            }
            $html .= '<input ' . $attribute . '>';
            $html .= $itemValue[$ii];
            if ($ii === $formElement['maxLength']) {
                $ii = 0;
                $html .= '<br>';
            }
        }
        return $html;
    }

    /**
     * Build HTML 'radio' element.
     *
     * Checkboxes will only be submitted, if they are checked. Therefore, a hidden element with the unchecked value will be transfered first.
     *
     * Format: <input type="hidden" name="$htmlFormElementId" value="$valueUnChecked">
     *         <input name="$htmlFormElementId" type="radio" [autofocus="autofocus"]
     *            [readonly="readonly"] [required="required"] [disabled="disabled"] value="<value>" [checked="checked"] >
     *
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     * @throws UserException
     */
    public function buildRadio(array $formElement, $htmlFormElementId, $value) {
        $itemKey = array();
        $itemValue = array();

        // Fill $itemKey & $itemValue
        $this->extractKeyValueList($formElement, $itemKey, $itemValue);

        $attributeBase = $this->getAttributeMode($formElement);
        $attributeBase .= $this->getAttribute('name', $htmlFormElementId);
        $attributeBase .= $this->getAttribute('type', $formElement['type']);

        $jj = 0;
        $flagFirst = true;

        $html = $this->buildHidden($formElement, $htmlFormElementId, $value);
        for ($ii = 0; $ii < count($itemValue); $ii++) {
            $jj++;
            $attribute = $attributeBase;
            if ($flagFirst) {
                $flagFirst = false;
                if (isset($formElement['autofocus']))
                    $attribute .= $this->getAttribute('autofocus', $formElement['autofocus']);
            }

            $attribute .= $this->getAttribute('value', $itemKey[$ii]);
            if ($itemKey[$ii] === $value) {
                $attribute .= $this->getAttribute('checked', 'checked');
            }
            $html .= '<input ' . $attribute . '>';
            $html .= $itemValue[$ii];
            if ($jj === $formElement['maxLength']) {
                $jj = 0;
                $html .= '<br>';
            }
        }
        return $html;
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return mixed
     */
    public function buildSelect(array $formElement, $htmlFormElementId, $value) {
        $itemKey = array();
        $itemValue = array();

        // Fill $itemKey & $itemValue
        $this->extractKeyValueList($formElement, $itemKey, $itemValue);

        $attribute = $this->getAttributeMode($formElement);
        $attribute .= $this->getAttribute('name', $htmlFormElementId);
        $attribute .= $this->getAttributeList($formElement, ['type', 'autofocus']);

        if (isset($formElement['size']) && $formElement['size'] > 1) {
            $attribute .= $this->getAttribute('size', $formElement['size']);
            $attribute .= $this->getAttribute('multiple', 'multiple');
        }

        $option = '';

        if (isset($formElement['emptyItemAtStart']))
            $option = '<option></option>';

        for ($ii = 0; $ii < count($itemValue); $ii++) {
            $option .= '<option ';

            $option .= $this->getAttribute('value', $itemKey[$ii]);
            if ($itemKey[$ii] === $value) {
                $attribute .= 'selected ';
            }

            $option .= '>' . $itemValue[$ii] . '</option>';
        }

        if (isset($formElement['emptyItemAtEnd']))
            $option = '<option></option>';

        return '<select ' . $attribute . '>' . $option . '</select>';
    }

    /**
     * Constuct a HTML table of the subrecord data.
     * Column syntax definition: https://wikiit.math.uzh.ch/it/projekt/qfq/qfq-jqwidgets/Documentation#Type:_subrecord
     *
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     * @throws UserException
     */
    public function buildSubrecord(array $formElement, $htmlFormElementId, $value) {
        $html = '';

        if (!is_array($formElement['sql1'])) {
            throw new UserException('Missing \'sql1\' Query', ERROR_MISSING_SQL1);
        }

        // construct column attributes
        $control = $this->getSubrecordColumnControl(array_keys($formElement['sql1'][0]));
//        $html .= '<b>' . $formElement['label'] . '</b>';
        $html .= '<table border="1">';
        $html .= '<tr><th>' . implode('</th><th>', $control['title']) . '</th></tr>';
        foreach ($formElement['sql1'] as $row) {
            $html .= '<tr>';
            foreach ($row as $col => $value) {
                if (isset($control['icon'][$col])) {
                    $cell = ($value === '') ? '' : "<image src='fileadmin/icons/$value'>";
                } else {
                    $cell = isset($control['nostrip'][$col]) ? $value : strip_tags($value);
                    $cell = substr($cell, 0, $control['width'][$col]);
                }
                $html .= "<td>$cell</td>";
            }
            $html .= '</tr>';
        }
        $html .= '</table>';

        return $html;
    }

    /**
     * @param $titleRaw
     * @return array
     * @throws UserException
     */
    private function getSubrecordColumnControl($titleRaw) {
        $control = array();

        foreach ($titleRaw AS $col) {
            $control['width'][$col] = SUBRECORD_COLUMN_WIDTH;

            // a) 'City@width=40', b) 'Status@icon', c) 'Mailto@width=80@nostrip'
            $arr = qfq\helper\KeyValueStringParser::parse($col, '=', '@', IF_VALUE_EMPTY_COPY_KEY);
            foreach ($arr as $attribute => $value) {
                switch ($attribute) {
                    case 'width':
                    case 'nostrip':
                    case 'icon':
                        break;
                    default:
                        $attribute = 'title';
                        break;
                }
                $control[$attribute][$col] = $value;
            }
            // Limit title length
            $control['title'][$col] = substr($control['title'][$col], 0, $control['width'][$col]);
        }
        return $control;
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return string
     * @throws UserException
     */
    public function buildFile(array $formElement, $htmlFormElementId, $value) {

        $attribute = $this->getAttributeMode($formElement);
        $attribute .= $this->getAttribute('type', 'file');
        $attribute .= $this->getAttribute('name', $htmlFormElementId);
        $attribute .= $this->getAttributeList($formElement, ['autofocus', 'accept']);

        return '<input ' . $attribute . '>';
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @throws UserException
     */
    public function buildDateJQW(array $formElement, $htmlFormElementId, $value) {
        // TODO: implement
        throw new UserException("Not implemented yet: buildDateJQW()");
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @throws UserException
     */
    public function buildGridJQW(array $formElement, $htmlFormElementId, $value) {
        // TODO: implement
        throw new UserException("Not implemented yet: buildGridJQW()");
    }

    /**
     * @param array $formElement
     * @param $htmlFormElementId
     * @param $value
     * @return mixed
     */
    public function buildNote(array $formElement, $htmlFormElementId, $value) {
        return $value;
    }

}