<?php if(!function_exists('startedIndexPhp')) { header("location:../index.php"); exit();}
# streber - a php based project management system
# Copyright (c) 2005 Thomas Mann - hide@address.com
# Distributed under the terms and conditions of the GPL as stated in docs/license.txt

/**
 * special functions for listing recent changes like in home->Dashboard
 *
 * @includedby:     pages/*
 *
 * @author         Thomas Mann
 * @uses:           ListBlock
 * @usedby:

*/

require_once(confGet('DIR_STREBER') . 'std/class_changeline.inc.php');


function printRecentChanges($projects, $print_project_headlines= true)
{
    global $PH;
    global $auth;
    /**
    * first get all changelines for projects to filter out projects without changes
    */
    $projects_with_changes= array();    # array with projects
    $project_changes= array();          # hash with project id and changelist

    foreach($projects as $project) {
                
        /**
        * first query all unviewed changes
        */
        $options = array(
            'project'           => $project->id,
            'unviewed_only'     => false,
            'limit_rowcount'    => confGet('MAX_CHANGELINES')+ 1,  #increased by 1 to get "more link"
            'limit_offset'      => 0,
            'type'              => array(ITEM_TASK, ITEM_FILE),
        );
        if($auth->cur_user->settings&USER_SETTING_FILTER_OWN_CHANGES) {
            $options['not_modified_by'] = $auth->cur_user->id;
        }
        
        if($changes= ChangeLine::getChangeLines($options)) {
            $projects_with_changes[]= $project;
            $project_changes[$project->id]= $changes;                    
        }
    }

    ### Setup block ###
    {
        if($auth->cur_user->settings & USER_SETTING_FILTER_OWN_CHANGES) {
            $link_name = __("Also show yours", "E.i. also show your changes");
        }
        else {
            $link_name = __("Hide yours", "E.i. Filter out your changes");
        }

        $block=new PageBlock(array(
            'title' =>__('Recent changes'),
            'id'    =>'recentchanges',
            'headline_links' => array($PH->getLink('personToggleFilterOwnChanges', $link_name , array('person'=> $auth->cur_user->id))),
        ));
        $block->render_blockStart();
    }


    ### no changes
    if(0 == count($projects_with_changes)) {

        echo "<div class=text>" . __("No changes yet") . "</div>";


        ### more options ###
        echo "<p class=more>";
        echo $PH->getLink('personToggleFilterOwnChanges', $link_name , array('person'=> $auth->cur_user->id));
        echo "</p>";
        $block->render_blockEnd();
    } 
    ### some changes
    else {
        
        $changelines_per_project= confGet('MAX_CHANGELINES_PER_PROJECT');
        if(count($projects_with_changes) < confGet('MAX_CHANGELINES') / confGet('MAX_CHANGELINES_PER_PROJECT')) {
            $changelines_per_project = confGet('MAX_CHANGELINES') / count($projects_with_changes)  - 1;
        }

        
        /**
        * count printed changelines to keep size of list
        */
        $printed_changelines = 0;
        foreach($projects_with_changes as $project) {
            echo "<div class=post_list_entry>";
            
            $changes= $project_changes[$project->id];

            if($print_project_headlines) {
                echo '<h3>'. sprintf( __("%s project", "links to project in recent changes list"), $PH->getLink('projView', $project->name, array('prj'=>$project->id))) . "</h3>";
            }

            echo "<ul id='changesOnProject_$project->id'>";
            $lines= 0;
            foreach($changes as $c) {
                $lines++;
                printChangeLine($c);

                $printed_changelines++;
                if($lines >= $changelines_per_project) {
                    break;                            
                };
            }
            echo "</ul>";
            
            ### more options ###
            echo "<p class=more>";

            if($auth->cur_user->settings & USER_SETTING_FILTER_OWN_CHANGES) {
                $link_name = __("Also show your changes");
            }
            else {
                $link_name = __("Hide your changes");
            }
            

            if($lines < count($changes)) {
                echo " | ";
                echo "<a href='javascript:getMoreChanges($project->id, ". ($lines - 1).", " . confGet('MORE_CHANGELINES') . ");' "
                . '>'
                . __('Show more')
                . '</a>';
            }
            echo "</p>";
                
                
            /**
            * limit number of projects
            */
            if($printed_changelines >= confGet('MAX_CHANGELINES')) {
                break;
            }
            echo "</div>";
        }            
        $block->render_blockEnd();
    }
}


/**
* writes a changeline as html
*
* 
*/
function printChangeLine($c)
{
    global $PH;
    global $auth;

    
    if($c->person_by == $auth->cur_user->id) {
        $changed_by_current_user= true;
    }
    else {
        $changed_by_current_user= false;
    }
    
    if($c->item->type == ITEM_TASK) {
        if($changed_by_current_user) {
            echo '<li class=by_cur_user>';            
        }
        else {            
            echo '<li>';
        }
        echo $c->item->getLink(false);
    }
    elseif($c->item->type == ITEM_FILE) {
        echo '<li>' . $PH->getLink('fileView', $c->item->name, array('file' => $c->item->id));        
    }
    else {
        trigger_error('printChangeLine() for unknown item item', E_USER_WARNING);
        return;
    }
    
    
    /**
    * remarks on new, updated or item that require feedback
    */
    if($c->item) {
        if($c->item->isFeedbackRequestedForUser()) {
                echo '<span class=new> (' . __('Needs feedback') . ') </span>';
        }
        elseif($new= $c->item->isChangedForUser()) {
            if($new == 1) {
                echo '<span class=new> (' . __('New') . ') </span>';
            }
            else {
                echo '<span class=new>  (' . __('Updated') . ') </span>';
            }
        }
    }
    
    echo "<span class=sub>$c->txt_what";
    
    if($person= Person::getVisibleById($c->person_by)) {
        echo ' ' . __('by') . ' <span class=person>' . asHtml($person->name) ."</span>";
    }
    echo ' ' . renderTimeAgo($c->timestamp);
    
    echo "</span>";
    
    echo '</li>';    
    return;
}

?>