<?php
/**
 * File containing the eZIntegerType class.
 *
 * @copyright Copyright (C) 1999-2011 eZ Systems AS. All rights reserved.
 * @license http://www.gnu.org/licenses/gpl-2.0.txt GNU General Public License v2
 * @version //autogentag//
 * @package kernel
 */

/*!
  \class eZIntegerType ezintegertype.php
  \ingroup eZDatatype
  \brief A content datatype which handles integers

  It provides the functionality to work as an integer and handles
  class definition input, object definition input and object viewing.

  It uses the spare field data_int in a content object attribute for storing
  the attribute data.
*/

class eZIntegerType extends eZDataType
{
    const DATA_TYPE_STRING = "ezinteger";
    const MIN_VALUE_FIELD = "data_int1";
    const MIN_VALUE_VARIABLE = "_ezinteger_min_integer_value_";
    const MAX_VALUE_FIELD = "data_int2";
    const MAX_VALUE_VARIABLE = "_ezinteger_max_integer_value_";
    const DEFAULT_VALUE_FIELD = "data_int3";
    const DEFAULT_VALUE_VARIABLE = "_ezinteger_default_value_";
    const INPUT_STATE_FIELD = "data_int4";
    const NO_MIN_MAX_VALUE = 0;
    const HAS_MIN_VALUE = 1;
    const HAS_MAX_VALUE = 2;
    const HAS_MIN_MAX_VALUE = 3;

    function eZIntegerType()
    {
        $this->eZDataType( self::DATA_TYPE_STRING, ezpI18n::tr( 'kernel/classes/datatypes', "Integer", 'Datatype name' ),
                           array( 'serialize_supported' => true,
                                  'object_serialize_map' => array( 'data_int' => 'value' ) ) );
        $this->IntegerValidator = new eZIntegerValidator();
    }

    /*!
     Private method, only for using inside this class.
    */
    function validateIntegerHTTPInput( $data, $contentObjectAttribute, $classAttribute )
    {
        $min = $classAttribute->attribute( self::MIN_VALUE_FIELD );
        $max = $classAttribute->attribute( self::MAX_VALUE_FIELD );
        $input_state = $classAttribute->attribute( self::INPUT_STATE_FIELD );

        switch( $input_state )
        {
            case self::NO_MIN_MAX_VALUE:
            {
                $this->IntegerValidator->setRange( false, false );
                $state = $this->IntegerValidator->validate( $data );
                if( $state === eZInputValidator::STATE_INVALID || $state === eZInputValidator::STATE_INTERMEDIATE )
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'The input is not a valid integer.' ) );
                else
                    return $state;
            } break;
            case self::HAS_MIN_VALUE:
            {
                $this->IntegerValidator->setRange( $min, false );
                $state = $this->IntegerValidator->validate( $data );
                if( $state === eZInputValidator::STATE_ACCEPTED )
                    return eZInputValidator::STATE_ACCEPTED;
                else
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'The number must be greater than %1' ),
                                                                 $min );
            } break;
            case self::HAS_MAX_VALUE:
            {
                $this->IntegerValidator->setRange( false, $max );
                $state = $this->IntegerValidator->validate( $data );
                if( $state===1 )
                    return eZInputValidator::STATE_ACCEPTED;
                else
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'The number must be less than %1' ),
                                                                 $max );
            } break;
            case self::HAS_MIN_MAX_VALUE:
            {
                $this->IntegerValidator->setRange( $min, $max );
                $state = $this->IntegerValidator->validate( $data );
                if( $state===1 )
                    return eZInputValidator::STATE_ACCEPTED;
                else
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'The number is not within the required range %1 - %2' ),
                                                                 $min, $max );
            } break;
        }

        return eZInputValidator::STATE_INVALID;

    }

    /*!
     Validates the input and returns true if the input was
     valid for this datatype.
    */
    function validateObjectAttributeHTTPInput( $http, $base, $contentObjectAttribute )
    {
        $classAttribute = $contentObjectAttribute->contentClassAttribute();

        if ( $http->hasPostVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) ) )
        {
            $data = $http->postVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) );
            $data = str_replace(" ", "", $data );

            if ( $data == "" )
            {
                if ( !$classAttribute->attribute( 'is_information_collector' ) and
                     $contentObjectAttribute->validateIsRequired() )
                {
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'Input required.' ) );
                    return eZInputValidator::STATE_INVALID;
                }
                else
                    return eZInputValidator::STATE_ACCEPTED;
            }
            else
            {
                return $this->validateIntegerHTTPInput( $data, $contentObjectAttribute, $classAttribute );
            }
        }
        else if ( !$classAttribute->attribute( 'is_information_collector' ) and $contentObjectAttribute->validateIsRequired() )
        {
            $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes', 'Input required.' ) );
            return eZInputValidator::STATE_INVALID;
        }
        else
            return eZInputValidator::STATE_ACCEPTED;
    }

    function fixupObjectAttributeHTTPInput( $http, $base, $contentObjectAttribute )
    {
    }

    /*!
     Sets the default value.
    */
    function initializeObjectAttribute( $contentObjectAttribute, $currentVersion, $originalContentObjectAttribute )
    {
        if ( $currentVersion != false )
        {
//             $contentObjectAttributeID = $contentObjectAttribute->attribute( "id" );
//             $currentObjectAttribute = eZContentObjectAttribute::fetch( $contentObjectAttributeID,
//                                                                         $currentVersion );
            $dataInt = $originalContentObjectAttribute->attribute( "data_int" );
            $contentObjectAttribute->setAttribute( "data_int", $dataInt );
        }
        else
        {
            $contentClassAttribute = $contentObjectAttribute->contentClassAttribute();
            $default = $contentClassAttribute->attribute( "data_int3" );
            if ( $default !== 0 )
            {
                $contentObjectAttribute->setAttribute( "data_int", $default );
            }
        }
    }

    /*!
     Fetches the http post var integer input and stores it in the data instance.
    */
    function fetchObjectAttributeHTTPInput( $http, $base, $contentObjectAttribute )
    {
        if ( $http->hasPostVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) ) )
        {
            $data = $http->postVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) );
            $data = trim( $data ) != '' ? $data : null;
            $data = str_replace(" ", "", $data);
            $contentObjectAttribute->setAttribute( "data_int", $data );
            return true;
        }
        return false;
    }

    function validateCollectionAttributeHTTPInput( $http, $base, $contentObjectAttribute )
    {
        if ( $http->hasPostVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) ) )
        {
            $data = $http->postVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) );
            $data = str_replace(" ", "", $data );
            $classAttribute = $contentObjectAttribute->contentClassAttribute();

            if ( $data == "" )
            {
                if ( $contentObjectAttribute->validateIsRequired() )
                {
                    $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes',
                                                                         'Input required.' ) );
                    return eZInputValidator::STATE_INVALID;
                }
                else
                    return eZInputValidator::STATE_ACCEPTED;
            }
            else
            {
                return $this->validateIntegerHTTPInput( $data, $contentObjectAttribute, $classAttribute );
            }
        }
        else
            return eZInputValidator::STATE_INVALID;
    }

    /*!
     Fetches the http post variables for collected information
    */
    function fetchCollectionAttributeHTTPInput( $collection, $collectionAttribute, $http, $base, $contentObjectAttribute )
    {
        if ( $http->hasPostVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) ) )
        {
            $data = $http->postVariable( $base . "_data_integer_" . $contentObjectAttribute->attribute( "id" ) );
            $data = trim( $data ) != '' ? $data : null;
            $data = str_replace(" ", "", $data);
            $collectionAttribute->setAttribute( "data_int", $data );
            return true;
        }
        return false;
    }

    /*!
     Does nothing, the data is already present in the attribute.
    */
    function storeObjectAttribute( $object_attribute )
    {
    }

    function storeClassAttribute( $attribute, $version )
    {
    }

    function validateClassAttributeHTTPInput( $http, $base, $classAttribute )
    {
        $minValueName = $base . self::MIN_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        $maxValueName = $base . self::MAX_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        $defaultValueName = $base . self::DEFAULT_VALUE_VARIABLE . $classAttribute->attribute( "id" );

        if ( $http->hasPostVariable( $minValueName ) and
             $http->hasPostVariable( $maxValueName ) and
             $http->hasPostVariable( $defaultValueName ) )
        {
            $minValueValue = $http->postVariable( $minValueName );
            $minValueValue = str_replace(" ", "", $minValueValue );
            $maxValueValue = $http->postVariable( $maxValueName );
            $maxValueValue = str_replace(" ", "", $maxValueValue );
            $defaultValueValue = $http->postVariable( $defaultValueName );
            $defaultValueValue = str_replace(" ", "", $defaultValueValue );

            if ( ( $minValueValue == "" ) && ( $maxValueValue == "") ){
                return  eZInputValidator::STATE_ACCEPTED;
            }
            else if ( ( $minValueValue == "" ) && ( $maxValueValue !== "") )
            {
                $max_state = $this->IntegerValidator->validate( $maxValueValue );
                return  $max_state;
            }
            else if ( ( $minValueValue !== "" ) && ( $maxValueValue == "") )
            {
                $min_state = $this->IntegerValidator->validate( $minValueValue );
                return  $min_state;
            }
            else
            {
                $min_state = $this->IntegerValidator->validate( $minValueValue );
                $max_state = $this->IntegerValidator->validate( $maxValueValue );
                if ( ( $min_state == eZInputValidator::STATE_ACCEPTED ) and
                     ( $max_state == eZInputValidator::STATE_ACCEPTED ) )
                {
                    if ($minValueValue <= $maxValueValue)
                        return eZInputValidator::STATE_ACCEPTED;
                    else
                    {
                        $state = eZInputValidator::STATE_INTERMEDIATE;
                        eZDebug::writeNotice( "Integer minimum value great than maximum value." );
                        return $state;
                    }
                }
            }

            if ($defaultValueValue == ""){
                $default_state =  eZInputValidator::STATE_ACCEPTED;
            }
            else
                $default_state = $this->IntegerValidator->validate( $defaultValueValue );
        }

        return eZInputValidator::STATE_INVALID;
    }

    function fixupClassAttributeHTTPInput( $http, $base, $classAttribute )
    {
        $minValueName = $base . self::MIN_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        $maxValueName = $base . self::MAX_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        if ( $http->hasPostVariable( $minValueName ) and $http->hasPostVariable( $maxValueName ) )
        {
            $minValueValue = $http->postVariable( $minValueName );
            $minValueValue = $this->IntegerValidator->fixup( $minValueValue );
            $http->setPostVariable( $minValueName, $minValueValue );

            $maxValueValue = $http->postVariable( $maxValueName );
            $maxValueValue = $this->IntegerValidator->fixup( $maxValueValue );
            $http->setPostVariable( $maxValueName, $maxValueValue );

            if ($minValueValue > $maxValueValue)
            {
                $this->IntegerValidator->setRange( $minValueValue, false );
                $maxValueValue = $this->IntegerValidator->fixup( $maxValueValue );
                $http->setPostVariable( $maxValueName, $maxValueValue );
            }
        }
    }

    function fetchClassAttributeHTTPInput( $http, $base, $classAttribute )
    {
        $minValueName = $base . self::MIN_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        $maxValueName = $base . self::MAX_VALUE_VARIABLE . $classAttribute->attribute( "id" );
        $defaultValueName = $base . self::DEFAULT_VALUE_VARIABLE . $classAttribute->attribute( "id" );

        if ( $http->hasPostVariable( $minValueName ) and
             $http->hasPostVariable( $maxValueName ) and
             $http->hasPostVariable( $defaultValueName ) )
        {
            $minValueValue = $http->postVariable( $minValueName );
            $minValueValue = str_replace(" ", "", $minValueValue );
            $maxValueValue = $http->postVariable( $maxValueName );
            $maxValueValue = str_replace(" ", "", $maxValueValue );
            $defaultValueValue = $http->postVariable( $defaultValueName );
            $defaultValueValue = str_replace(" ", "", $defaultValueValue );

            $classAttribute->setAttribute( self::MIN_VALUE_FIELD, $minValueValue );
            $classAttribute->setAttribute( self::MAX_VALUE_FIELD, $maxValueValue );
            $classAttribute->setAttribute( self::DEFAULT_VALUE_FIELD, $defaultValueValue );

            if ( ( $minValueValue == "" ) && ( $maxValueValue == "") ){
                $input_state = self::NO_MIN_MAX_VALUE;
                $classAttribute->setAttribute( self::INPUT_STATE_FIELD, $input_state );
            }
            else if ( ( $minValueValue == "" ) && ( $maxValueValue !== "") )
            {
                $input_state = self::HAS_MAX_VALUE;
                $classAttribute->setAttribute( self::INPUT_STATE_FIELD, $input_state );
            }
            else if ( ( $minValueValue !== "" ) && ( $maxValueValue == "") )
            {
                $input_state = self::HAS_MIN_VALUE;
                $classAttribute->setAttribute( self::INPUT_STATE_FIELD, $input_state );
            }
            else
            {
                $input_state = self::HAS_MIN_MAX_VALUE;
                $classAttribute->setAttribute( self::INPUT_STATE_FIELD, $input_state );
            }
            return true;
        }
        return false;
    }

    /*!
     Returns the content.
    */
    function objectAttributeContent( $contentObjectAttribute )
    {
        return $contentObjectAttribute->attribute( "data_int" );
    }


    /*!
     Returns the meta data used for storing search indeces.
    */
    function metaData( $contentObjectAttribute )
    {
        return (int)$contentObjectAttribute->attribute( "data_int" );
    }
    /*!
     \return string representation of an contentobjectattribute data for simplified export

    */
    function toString( $contentObjectAttribute )
    {
        return $contentObjectAttribute->attribute( 'data_int' );
    }

    function fromString( $contentObjectAttribute, $string )
    {
        return $contentObjectAttribute->setAttribute( 'data_int', $string );
    }

    /*!
     Returns the integer value.
    */
    function title( $contentObjectAttribute, $name = null )
    {
        return $contentObjectAttribute->attribute( "data_int" );
    }

    function hasObjectAttributeContent( $contentObjectAttribute )
    {
        return $contentObjectAttribute->attribute( 'data_int' ) !== null;
    }

    function isInformationCollector()
    {
        return true;
    }

    /*!
     \return true if the datatype can be indexed
    */
    function isIndexable()
    {
        return true;
    }

    function sortKey( $contentObjectAttribute )
    {
        return $contentObjectAttribute->attribute( 'data_int' );
    }

    function sortKeyType()
    {
        return 'int';
    }

    function serializeContentClassAttribute( $classAttribute, $attributeNode, $attributeParametersNode )
    {
        $defaultValue = $classAttribute->attribute( self::DEFAULT_VALUE_FIELD );
        $minValue = $classAttribute->attribute( self::MIN_VALUE_FIELD );
        $maxValue = $classAttribute->attribute( self::MAX_VALUE_FIELD );
        $minMaxState = $classAttribute->attribute( self::INPUT_STATE_FIELD );

        $dom = $attributeParametersNode->ownerDocument;
        $defaultValueNode = $dom->createElement( 'default-value' );
        $defaultValueNode->appendChild( $dom->createTextNode( $defaultValue ) );
        $attributeParametersNode->appendChild( $defaultValueNode );
        if ( $minMaxState == self::HAS_MIN_VALUE or $minMaxState == self::HAS_MIN_MAX_VALUE )
        {
            $minValueNode = $dom->createElement( 'min-value' );
            $minValueNode->appendChild( $dom->createTextNode( $minValue ) );
            $attributeParametersNode->appendChild( $minValueNode );
        }
        if ( $minMaxState == self::HAS_MAX_VALUE or $minMaxState == self::HAS_MIN_MAX_VALUE )
        {
            $maxValueNode = $dom->createElement( 'max-value' );
            $maxValueNode->appendChild( $dom->createTextNode( $maxValue ) );
            $attributeParametersNode->appendChild( $maxValueNode );
        }
    }

    function unserializeContentClassAttribute( $classAttribute, $attributeNode, $attributeParametersNode )
    {
        $defaultValue = $attributeParametersNode->getElementsByTagName( 'default-value' )->item( 0 )->textContent;
        $minValue = $attributeParametersNode->getElementsByTagName( 'min-value' )->item( 0 )->textContent;
        $maxValue = $attributeParametersNode->getElementsByTagName( 'max-value' )->item( 0 )->textContent;

        if ( strlen( $minValue ) > 0 and strlen( $maxValue ) > 0 )
            $minMaxState = self::HAS_MIN_MAX_VALUE;
        else if ( strlen( $minValue ) > 0 )
            $minMaxState = self::HAS_MIN_VALUE;
        else if ( strlen( $maxValue ) > 0 )
            $minMaxState = self::HAS_MAX_VALUE;
        else
            $minMaxState = self::NO_MIN_MAX_VALUE;

        $classAttribute->setAttribute( self::DEFAULT_VALUE_FIELD, $defaultValue );
        $classAttribute->setAttribute( self::MIN_VALUE_FIELD, $minValue );
        $classAttribute->setAttribute( self::MAX_VALUE_FIELD, $maxValue );
        $classAttribute->setAttribute( self::INPUT_STATE_FIELD, $minMaxState );
    }

    function batchInitializeObjectAttributeData( $classAttribute )
    {
        $default = $classAttribute->attribute( "data_int3" );
        if ( $default === 0 )
        {
            return array();
        }
        else
        {
            return array( 'data_int'     => $default,
                          'sort_key_int' => $default );
        }
    }

    function supportsBatchInitializeObjectAttribute()
    {
        return true;
    }

    /// \privatesection
    /// The integer value validator
    public $IntegerValidator;
}

eZDataType::register( eZIntegerType::DATA_TYPE_STRING, "eZIntegerType" );

?>