<?php
/***********************************************************************
 * Copyright (c) Eclipse Foundation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-2.0
 ***********************************************************************/

require_once "../../eclipse.org-common/system/app.class.php";
require_once ($_SERVER ['DOCUMENT_ROOT'] . "/eclipse.org-common/system/nav.class.php");
require_once ($_SERVER ['DOCUMENT_ROOT'] . "/eclipse.org-common/system/menu.class.php");

$App = new App ();
$Nav = new Nav ();
$Menu = new Menu ();
include ($App->getProjectCommon ());

require_once '../classes/Project.class.php';
require_once '../classes/ProjectStatusReporter.class.inc';
require_once '../classes/debug.php';
require_once '../classes/database.inc';
require_once '../classes/common.php';
require_once './charts.inc';

callIfNotCommitter(function() {
	header('Location: /projects');
	exit;
});

$pageTitle = "Eclipse Project Overview";
$pageKeywords = "";
$pageAuthor = "Wayne Beaton";

ob_start ();

if (!(($id = @$_GET['id']) && isValidProjectId($id))) $id = null;

$options = array();
$options['width'] = is_numeric(@$_GET['width']) ? @$_GET['width'] : 500;
$options['height'] = is_numeric(@$_GET['height']) ? @$_GET['height'] : 200;
$options['start'] =  @$_GET['start'] ? date('Y-m-d', strtotime(@$_GET['start'])) : null;
$options['end'] = @$_GET['end'] ? date('Y-m-d', strtotime(@$_GET['end'])) : null;

// The 'committers' parameter when present or set to anything
// but 'false' will result in charts being rendered for every
// project committer. This can be expensive, so we only do it
// when asked.
$showCommitters = isset($_GET['committers']) && ($_GET['committers']!='false');

// NOTE that subprojects are not rendered when the committers are
// (to do both can be *very* expensive for a top-level project).
$showSubprojects = $showCommitters ? false : (isset($_GET['subprojects']) && ($_GET['subprojects']!='false'));

// Add an entry to focus the report on every
// top-level project to the navigation bar.
$Nav->addNavSeparator("Report", "./report.php");
foreach(Project::getTopLevelProjects() as $project) {
	$Nav->addCustomNav($project->getName(), "?id={$project->getId()}", "_self", 2);
}

/**
 * Render an HTML report for a particular project.
 *
 * This uses an instance of the ProjectStatusReporter class to collect
 * and render specific bits of information about the project.
 *
 * @see ProjectStatusReporter
 *
 * @param Project $project
 * @param boolean $showCommitters
 */
function renderProjectReport(Project $project, $options, $showCommitters = false) {
	if (! $project)
		return;
	$status = new ProjectStatusReporter ( array (
			$project->getId ()
	) );

	echo "<h2><a href=\"?id={$project->getId()}\">{$project->getFormalName()}</a></h2>";
	echo "<div style=\"margin-left:1em\">";

	// Render alerts. Alerts are a warning about something that might
	// be odd or wrong about a project. We render each line using a
	// warning icon as the bullet.
	if ($alerts = $status->alerts($project)) {
		echo "<h3>Alerts</h3>";
		echo "<ul style=\"list-style-type: none\">";
		foreach($alerts as $message) {
			echo "<li><span style=\"color: red;\">&#9888;</span> {$message}</li>";
		}
		echo "</ul>";
	}

	// Render project stats in a table. This is a little clunky in my
	// attempt to make the specification of individual stats easily
	// extended while making the rendering very consistent. Each of the
	// "values" from the ProjectStatusReporter contains information about
	// a particular bit of data from the project (including a label and
	// corresponding value).
	echo "<h3>Lifetime stats</h3>";
	echo "<div class=\"container\">";
	$status->values ( $project->getId (), function ($column) {
		echo "<div class=\"row\"><div class=\"col-md-6\">{$column->getTitle()}:</div><div class=\"col-md-6\">{$column->getValue()}</div></div>";
	} );
	echo "</div>";

	// Render charts
	// FIXME Experimental.
	$status->charts($project, function($builder) use (&$options) {
		$builder
		->width ( $options['width'] )
		->height ( $options['height'] )
		->substitute (':start', $options['start'])
		->substitute (':end', $options['end'])
		->render();
	});

	// Show committers if required.
	// FIXME Experimental
	if ($showCommitters) {
		echo "<h3>Committer Activity</h3>";
		echo "<p>Commit activity for current committers.</p>";
		echo "<p>Commits in {$project->getName()} repositories specificially.</p>";
		/*
		 * Get a list of active committers and render an activity chart for each of them.
		 */
		$sql = "
			select
				concat(cm.first, ' ', cm.last) as name, cm.id
			from CommitterProject as cp
				join Committer as cm on cp.id=cm.id
			where cp.project=':project' and inactiveDate>now()";
		query('dashboard', $sql, array(':project' => $project->getId()), function($row) use (&$project, &$options) {
			echo "<div style=\"margin-left:2em\">";
			echo "<h4>{$row['name']} Commits</h4>";
			ChartBuilder::named("committer_activity_" . rand())
				->query('dashboard', "
					select
						periods.period as period,
						if (commits.count is null, 0, commits.count) as count
					from (
						select distinct period
						from CommitterProjectActivity
						where
							period
								between (
									select min(period)
									from CommitterProjectActivity
									where
										login=':id'
										and project=':project')
								and date_format(now(),'%Y%m')
						) as periods
					left join
						CommitterProjectActivity as commits
							on (periods.period = commits.period
								and commits.login=':id'
								and commits.project=':project')
					order by period
				")
				->substitute(':id', $row['id'])
				->substitute(':project', $project->getId())
				->column ( 'Month', 'period', 'string', function ($value) {
					return asYearMonth ( $value );
				} )
				->column ( 'Commits', 'count', 'number' )
				->columnChart ()
				->height ( $options['height'] )
				->width ( $options['width'] )
				->option ( 'legend', 'none' )
				->option ('hAxis', array('slantedText' => false))
				->render();
			echo "</div>";
		});
	}


	echo "</div>";
}

?>
<div id="maincontent">
<div id="midcolumn">
<h1><?=$pageTitle?></h1>

<p>EXPERIMENTAL. This page shows some basic metrics.</p>
<?php

$project = Project::getProject($id);
if ($project) {
	renderProjectReport($project, $options, $showCommitters);
	if ($showSubprojects) {
		foreach($project->getChildren() as $child) {
			renderProjectReport($child, $options, false);
		}
	}
} else {
	foreach(Project::getTopLevelProjects() as $project) {
		renderProjectReport($project, $options, false);
	}
}
?>
</div>
</div>

<?php
$html = ob_get_contents ();
ob_end_clean ();
$App->generatePage ( null, $Menu, $Nav, $pageAuthor, $pageKeywords, $pageTitle, $html );
?>