<?php
if (! defined('sugarEntry') || ! sugarEntry)
die('Not A Valid Entry Point');
/**
 * SugarCRM is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004 - 2007 SugarCRM Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo. If the display of the logo is not reasonably feasible for
 * technical reasons, the Appropriate Legal Notices must display the words
 * "Powered by SugarCRM".
 */

require_once ('modules/ModuleBuilder/parsers/ModuleBuilderParser.php');

class ParserModifyLayoutView extends ModuleBuilderParser
{

    var $maxColumns; // number of columns in this layout
    var $usingWorkingFile = false; // if a working file exists (used by view.edit.php among others to determine the title for the layout edit panel)
    var $language_module; // set to module name for studio, passed to the smarty template and used by sugar_translate
    var $_sourceFile; // private - the source of the layout defn
    var $_customFile; // private
    var $_workingFile; // private
    var $_baseFile; //private - the filename of the base viewdefs before any customizations
    var $_moduleVariable; // private - if set, contains the name of the variable containing the module name in the $viewdef file
    var $_module; // private
    var $_view; // private
    var $_viewdefs; // private
    var $_fieldDefs; // private


    /**
     * Constructor
     */
    function init ($module, $view, $submittedLayout = false)
    {
        $this->_view = ucfirst($view);
        $this->_module = $module;
        $this->language_module = $module;

        $this->_baseDirectory = "modules/{$module}/metadata/";
        $file =  $this->_baseDirectory . strtolower($view) . "defs.php";

        // identify the source for the base viewdefs - used to preserve field definitions and to ensure we include fields that are listed in the original viewdefs but would otherwise not be displayed
        $this->_baseFile = $file ;
        $this->_baseView = $this->_view ;
        if (strtolower($view) == 'quickcreate' && ! is_file($file))
        {
            $this->_baseFile = $this->_baseDirectory."editviewdefs.php" ;
            $this->_baseView = 'EditView' ; 
        }
            
        // identify the source for the current viewdefs
        $this->_customFile = "custom/" . $file;
        $this->_workingFile = "custom/working/" . $file;
        $this->_sourceFile = $file;
        $this->_sourceView = $this->_view;
        
        if (is_file($this->_workingFile))
        {
            $this->_sourceFile = $this->_workingFile;
            $this->usingWorkingFile = true;
        }
        else if (is_file($this->_customFile))
        {
            $this->_sourceFile = $this->_customFile;
        }
        else if (! is_file($this->_sourceFile))
        {
            // if we don't have ANY defined metadata then improvise as best we can
            if (strtolower($view) == 'quickcreate')
            {
                // special handling for quickcreates - base the quickcreate on the editview if no quickcreatedef exists
                $this->_sourceFile = $this->_baseDirectory."editviewdefs.php";
                if (is_file("custom/" . $this->_sourceFile))
                {
                    $this->_sourceFile = "custom/" . $this->_sourceFile;
                }
                $this->_sourceView = 'EditView';
            }
            else
            {
                $this->_fatalError('parser.modifylayout.php->init(): no metadata for '.$this->_module.' '.$this->_view);
            }
        }

        // get the fieldDefs from the bean
        $class = $GLOBALS ['beanList'] [$module];
        require_once ($GLOBALS ['beanFiles'] [$class]);
        $bean = new $class();
        $this->_fieldDefs = & $bean->field_defs;

        $this->loadModule($this->_module, $this->_sourceView);
        $this->_viewdefs ['panels'] = $this->_parseData($this->_viewdefs['panels']); // put into a canonical format
        $this->maxColumns = $this->_viewdefs ['templateMeta'] ['maxColumns'];

        if ($submittedLayout)
        {
            // replace the definitions with the new submitted layout
            $this->_loadLayoutFromRequest();
        } else
        {
            $this->_padFields(); // destined for a View, so we want to add in (empty) fields
        }
//      $GLOBALS['log']->debug($this->_viewdefs['panels']);

    }

    function getAvailableFields ()
    {
        // Available fields are those that are in the Model and the original layout definition, but not already shown in the View
        // So, because the formats of the two are different we brute force loop through View and unset the fields we find in a copy of Model
        $availableFields = $this->_getModelFields();
        $GLOBALS['log']->debug( get_class($this)."->getAvailableFields(): _getModelFields returns: ".implode(",",array_keys($availableFields)));
        if (! empty($this->_viewdefs))
        {
            foreach ($this->_viewdefs ['panels'] as $panel)
            {
                foreach ($panel as $row)
                {
                    foreach ($row as $fieldArray)
                    { // fieldArray is an array('name'=>name,'label'=>label)
                        if (isset($fieldArray ['name']))
                        {
                            unset($availableFields [$fieldArray ['name']]);
                            $GLOBALS['log']->debug( get_class($this)."->getAvailableFields(): removing ".$fieldArray ['name'] );
                        }
                    }
                }
            }
        }
        return $availableFields;
    }

    function getLayout ()
    {
        return $this->_viewdefs ['panels'];
    }

    function writeWorkingFile ()
    {
        $this->_writeToFile($this->_workingFile,$this->_view,$this->_module,$this->_viewdefs,$this->_variables);
    }

    function handleSave ()
    {
        $this->_writeToFile($this->_customFile,$this->_view,$this->_module,$this->_viewdefs,$this->_variables);
        // now clear the cache so that the results are immediately visible
        include_once('include/TemplateHandler/TemplateHandler.php');
        if (strtolower($this->_view) == 'quickcreate')
        {
        	TemplateHandler::clearCache($this->_module,"form_QuickCreate_{$this->_module}.tpl");
        } 
        else 
        {
        	TemplateHandler::clearCache($this->_module,"{$this->_view}.tpl");
        }
    }

    function loadModule ($module, $view)
    {
        $this->_viewdefs = array();
        $viewdefs = null;

        $loaded = $this->_loadFromFile($view,$this->_sourceFile,$module);
        $this->_viewdefs = $loaded['viewdefs'][$module][$view];
        $this->_variables = $loaded['variables'];
    }

    /**
     * Load the canonical panel layout from the submitted form
     *
     */
    function _loadLayoutFromRequest ()
    {

        $i = 1;
        // set up the map of panel# (as provided in the _REQUEST) to panel ID (as used in $this->_viewdefs['panels'])
        foreach ($this->_viewdefs ['panels'] as $panelID => $panel)
        {
            $panelMap [$i ++] = $panelID;
        }
        // replace any old values with new panel labels from the request
        foreach ($_REQUEST as $key => $value)
        {
            $components = explode('-', $key);
            if ($components [0] == 'panel')
            {
                $panelMap [$components ['1']] = $value;
            }
        }

        $olddefs = $this->_viewdefs ['panels'];
        $origFieldDefs = $this->_getOrigFieldViewDefs();
//      $GLOBALS['log']->debug('origFieldDefs');
//      $GLOBALS['log']->debug($origFieldDefs);
        $this->_viewdefs ['panels'] = null; // because the new field properties should replace the old fields, not be merged

        if ($this->maxColumns < 1)
        {
            $this->_fatalError("EditDetailViewParser:invalid maxColumns=" . $this->maxColumns);
        }

        foreach ($_REQUEST as $slot => $value)
        {
            $slotComponents = explode('-', $slot); // [0] = 'slot', [1] = panel #, [2] = slot #, [3] = property name
            if ($slotComponents [0] == 'slot')
            {
                $slotNumber = $slotComponents ['2'];
                $panelID = $panelMap [$slotComponents ['1']];
                $rowID = floor($slotNumber / $this->maxColumns);
                $colID = $slotNumber - ($rowID * $this->maxColumns);
                //If the original editview defined this field, copy that over.
                if ($slotComponents ['3'] == 'name' && isset($origFieldDefs [$value]) && is_array($origFieldDefs [$value]))
                {
                    $this->_viewdefs ['panels'] [$panelID] [$rowID] [$colID] = $origFieldDefs [$value];
                }
                else
                {
                    $property = $slotComponents ['3'];
                    if ($value == '(filler)')
                    {
                        $this->_viewdefs ['panels'] [$panelID] [$rowID] [$colID] = NULL;
                    } else
                    {
                        $this->_viewdefs ['panels'] [$panelID] [$rowID] [$colID] [$property] = $value;
                    }
                }
            }
        }

        // Now handle the (empty) fields - first non-(empty) field goes in at column 0; all other (empty)'s removed
        // Do this AFTER reading in all the $_REQUEST parameters as can't guarantee the order of those, and we need to operate on complete rows
        foreach ($this->_viewdefs ['panels'] as $panelID => $panel)
        {
            // remove all (empty)s
            foreach ($panel as $rowID => $row)
            {
                $startOfRow = true;
                $offset = 0;
                foreach ($row as $colID => $col)
                {
                    if ($col ['name'] == '(empty)')
                    {
                        // if a leading (empty) then remove (by noting that remaining fields need to be shuffled along)
                        if ($startOfRow)
                        {
                            $offset ++;
                        }
                        unset($row [$colID]);
                    } else
                    {
                        $startOfRow = false;
                    }
                }
                // reindex to remove leading (empty)s
                $newRow = array();
                foreach ($row as $colID => $col)
                {
                    $newRow [$colID - $offset] = $col;
                }
                $this->_viewdefs ['panels'] [$panelID] [$rowID] = $newRow;
            }
        }
        //          _pp($this->_viewdefs);
    }

    function _padFields ()
    {
        if (! empty($this->_viewdefs))
        {
            foreach ($this->_viewdefs ['panels'] as $panelID => $panel)
            {
                $column = 0;
                foreach ($panel as $rowID => $row)
                {
                    // pad between fields on a row
                    foreach ($row as $colID => $col)
                    {
                        for ($i = $column + 1 ; $i < $colID ; $i ++ )
                        {
                            $row [$i] = array('name' => '(empty)', 'label' => '(empty)');
                        }
                        $column = $colID;
                    }
                    // now pad out to the end of the row
                    if (($column + 1) < $this->maxColumns)
                    { // last column is maxColumns-1
                        for ($i = $column + 1 ; $i < $this->maxColumns ; $i ++ )
                        {
                            $row [$i] = array('name' => '(empty)', 'label' => '(empty)');
                        }
                    }
                    ksort($row);
                    $this->_viewdefs ['panels'] [$panelID] [$rowID] = $row;
                }
            }
        }
    }


    // add a new field to the end of a panel
    // don't write out (caller should call handleSave() when ready)
    function _addField ($properties, $panelID = FALSE)
    {

        // if a panelID was not passed, use the first available panel in the list
        if (!$panelID) {
            $panels = array_keys($this->_viewdefs['panels']);
            $panelID = $panels[0];
        }

        if (isset($this->_viewdefs ['panels'] [$panelID]))
        {

            // need to clean up the viewdefs before writing them -- Smarty will fail if any fillers/empties are present
            foreach ($this->_viewdefs['panels'] as $loop_panelID => $panel_contents) {
                foreach ($panel_contents as $row_id => $row) {
                    foreach ($row as $col_id => $col) {
                        if ($col['name'] == '(filler)') {
                            $this->_viewdefs['panels'][$loop_panelID][$row_id][$col_id] = NULL;
                        }
                        elseif ($col['name'] == '(empty)') {
                            unset($this->_viewdefs['panels'][$loop_panelID][$row_id][$col_id]);
                        }
                    }
                }
            }

            $panel = $this->_viewdefs ['panels'] [$panelID];
            $lastrow = count($panel) - 1; // index starts at 0
            $lastcol = count($panel [$lastrow]);

            // if we're on the last column of the last row, start a new row
            //          print "lastrow=$lastrow lastcol=$lastcol";
            if ($lastcol >= $this->maxColumns)
            {
                $lastrow ++;
                $this->_viewdefs ['panels'] [$panelID] [$lastrow] = array();
                $lastcol = 0;
            }

            $this->_viewdefs ['panels'] [$panelID] [$lastrow] [$lastcol] = $properties;
        }
    }
    
    /* getModelFields returns an array of all fields stored in the database for this module plus those fields in the original layout definition (so we get fields such as Team ID)*/
    function _getModelFields ()
    {
        $modelFields = array();
        $origViewDefs = $this->_getOrigFieldViewDefs();
//        $GLOBALS['log']->debug("Original viewdefs = ".print_r($origViewDefs,true));
        foreach ($origViewDefs as $field => $def)
        {
            if (!empty($field))
            {
                if (! is_array($def)) {
                    $def = array('name' => $field);
                }
                // get this field's label - if it has not been explicitly provided, see if the fieldDefs has a label for this field, and if not fallback to the field name
                if (! isset($def ['label']))
                        {
                            if (! empty($this->_fieldDefs [$field] ['vname']))
                            {
                                $def ['label'] = $this->_fieldDefs [$field] ['vname'];
                            } else
                            {
                                $def ['label'] = $field;
                            }
                        }
                $modelFields[$field] = array('name' => $field, 'label' => $def ['label']);
            }
        }

        foreach ($this->_fieldDefs as $field => $def)
        {
            if (ModuleBuilderParser::validField($def)) 
            {
                $label = isset($def['vname']) ? $def['vname'] : $def['name'];
                $modelFields [$field] = array('name' => $field, 'label' => $label);
                $GLOBALS['log']->debug(get_class($this)."->_getModelFields(): adding ".print_r($def,true));
            }
            else
            {
                $GLOBALS['log']->debug( get_class($this)."->_getModelFields(): skipping $field from modelFields as it fails the test for inclusion");
                if ($field == 'assigned_user_name')
                {
                    $GLOBALS['log']->debug( print_r($def,true));
                }
            }
        }
        $GLOBALS['log']->debug( get_class($this)."->_getModelFields(): remaining entries in modelFields are: ".implode(",",array_keys($modelFields)));
        return $modelFields;
    }

    function _parseData ($panels)
    {
        $fields = array();
        if (empty($panels))
        return;

        // Fix for a flexibility in the format of the panel sections - if only one panel, then we don't have a panel level defined, it goes straight into rows
        // See EditView2 for similar treatment
        if (! empty($panels) && count($panels) > 0)
        {
            $keys = array_keys($panels);
            if (is_numeric($keys [0]))
            {
                $defaultPanel = $panels;
                unset($panels); //blow away current value
                $panels [''] = $defaultPanel;
            }
        }

        foreach ($panels as $panelID => $panel)
        {
            foreach ($panel as $rowID => $row)
            {
                foreach ($row as $colID => $col)
                {
                    $properties = array();

                    if (! empty($col))
                    {
                        if (is_string($col))
                        {
                            $properties ['name'] = $col;
                        } else if (! empty($col ['name']))
                        {
                            $properties = $col;
                        }
                    } else
                    {
                        $properties ['name'] = translate('LBL_FILLER');
                    }

                    if (! empty($properties ['name']))
                    {

                        // get this field's label - if it has not been explicity provided, see if the fieldDefs has a label for this field, and if not fallback to the field name
                        if (! isset($properties ['label']))
                        {
                            if (! empty($this->_fieldDefs [$properties ['name']] ['vname']))
                            {
                                $properties ['label'] = $this->_fieldDefs [$properties ['name']] ['vname'];
                            } else
                            {
                                $properties ['label'] = $properties ['name'];
                            }
                        }

                        $displayData[strtoupper($panelID)] [$rowID] [$colID] = $properties;

                    }
                }
            }
        }
        return $displayData;
    }

    function _getOrigFieldViewDefs ()
    {
        $origFieldDefs = array();
        $GLOBALS['log']->debug("Original File = ".$this->_baseFile);
        if (file_exists($this->_baseFile))
        {
            include ($this->_baseFile);
            $origdefs = $viewdefs [$this->_module] [$this->_baseView] ['panels'];
//          $GLOBALS['log']->debug($origdefs);
            // Fix for a flexibility in the format of the panel sections - if only one panel, then we don't have a panel level defined, it goes straight into rows
            // See EditView2 for similar treatment
            if (! empty($origdefs) && count($origdefs) > 0)
            {
                $keys = array_keys($origdefs);
                if (is_numeric($keys [0]))
                {
                    $defaultPanel = $origdefs;
                    unset($origdefs); //blow away current value
                    $origdefs [''] = $defaultPanel;
                }
            }
            foreach ($origdefs as $pname => $paneldef)
            {
                foreach ($paneldef as $row)
                {
                    foreach ($row as $fieldDef)
                    {
                        if (is_array($fieldDef))
                        {
                            $fieldName = $fieldDef ['name'];
                        }
                        else
                        {
                            $fieldName = $fieldDef;
                        }
                        $origFieldDefs [$fieldName] = $fieldDef;
                    }
                }
            }
        }

        return $origFieldDefs;
    }

}
?>
