mod_version_calendar_svg/helper.php
2023-08-11 14:03:38 +02:00

409 lines
7.9 KiB
PHP

<?php
/**
* @package Joomla.CMS
* @maintainer Llewellyn van der Merwe <https://git.vdm.dev/Llewellyn>
*
* @created 29th July, 2020
* @copyright (C) 2020 Open Source Matters, Inc. <http://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
use Joomla\Registry\Registry;
class ModVersion_Calendar_svgHelper
{
/**
* The Module Params
*
* @var Registry
* @since 1.0
*/
protected $params;
/**
* The Years
*
* @var array
* @since 1.0
*/
protected $years;
/**
* The Branches
*
* @var array
* @since 1.0
*/
protected $branches;
/**
* The Legend
*
* @var array
* @since 1.0
*/
protected $legend;
/**
* The Width
*
* @var int
* @since 1.0
*/
protected $width;
/**
* The Height
*
* @var int
* @since 1.0
*/
protected $height;
/**
* Constructor
*
* @param Registry $params The module params
*
* @since 1.0.0
*/
public function __construct(Registry $params)
{
$this->params = $params;
}
/**
* Get Years
*
* @return array
* @since 1.0.0
*/
public function years(): array
{
if (empty($this->years))
{
$this->years = iterator_to_array(
new DatePeriod(
$this->min(),
new DateInterval('P1Y'),
$this->max()
)
);
}
return $this->years;
}
/**
* Get Width
*
* @return int
* @since 1.0.0
*/
public function width(): int
{
if (empty($this->width))
{
$years = $this->years();
$this->width = $this->params->get('margin_left', 80) +
$this->params->get('margin_right', 50) +
((count($years) - 1) * $this->params->get('year_width', 120));
}
return $this->width;
}
/**
* Get Height
*
* @return int
* @since 1.0.0
*/
public function height(): int
{
if (empty($this->height))
{
$branches = $this->branches();
$this->height = $this->params->get('header_height', 24) +
$this->params->get('footer_height', 24) +
(count($branches) * $this->params->get('branch_height', 30));
}
return $this->height;
}
/**
* Get Branches
*
* Fetches and processes the branches or versions from the parameters.
* It sanitizes the branch data, calculates their positions, sorts them, and then returns.
* If no valid branches or versions are found, it throws an exception.
*
* @return array
*
* @since 2.0.1
* @throws Exception If no valid branches or versions are found.
*/
public function branches(): array
{
if (empty($this->branches))
{
$branches = (array) $this->params->get('versions');
if (empty($branches))
{
throw new Exception("No versions found.");
}
$this->sanitize($branches);
if (empty($branches))
{
throw new Exception("No versions found.");
}
$this->setTop($branches);
$this->sort($branches);
$this->branches = $branches;
}
return $this->branches;
}
/**
* Get Legend values (by color)
*
* @return array
* @since 2.0.1
*/
public function legend(): array
{
if (empty($this->legend))
{
$branches = $this->branches();
foreach ($branches as $version)
{
foreach ($version->dates as $date)
{
$this->legend[$date->color] = $date;
}
}
}
return $this->legend;
}
/**
* Current state of a branch
*
* @param array $dates The branch dates
*
* @return string|null
* @since 2.0.1
*/
public function state(array $dates): ?string
{
// Determine the current state.
$now = new DateTime();
// Check if today's date is before the earliest start date.
$earliestDate = DateTime::createFromFormat('d-m-Y', $dates[0]->start);
if ($now < $earliestDate)
{
return 'vcs-future';
}
// Check if today's date is after the latest end date.
$latestDate = DateTime::createFromFormat('d-m-Y', end($dates)->end);
if ($now > $latestDate)
{
return 'vcs-eol';
}
// Determine which state the current date falls under.
foreach ($dates as $date)
{
$initial = DateTime::createFromFormat('d-m-Y', $date->start);
$end = DateTime::createFromFormat('d-m-Y', $date->end);
if ($now >= $initial && $now <= $end)
{
return $date->state;
}
}
return null;
}
/**
* Minimum Number of Years
*
* @return ?
* @since 1.0.0
*/
public function min()
{
$now = new DateTime('January 1');
return $now->sub(new DateInterval('P' .
$this->params->get('min_years', 3) . 'Y'));
}
/**
* Maximum Number of Years
*
* @return ?
* @since 1.0.0
*/
public function max()
{
$now = new DateTime('January 1');
return $now->add(new DateInterval('P' .
$this->params->get('max_years', 3) . 'Y'));
}
/**
* The coordinates of this date
*
* @param DateTime $date The branch state date
*
* @return float
* @since 1.0.0
*/
public function coordinates(DateTime $date): float
{
$diff = $date->diff($this->min());
if (!$diff->invert)
{
return $this->params->get('margin_left', 80);
}
return $this->params->get('margin_left', 80) +
($diff->days /
(365.24 / $this->params->get('year_width', 120))
);
}
/**
* Sort Branches state's by date
*
* @param array $branches The branches
*
* @return void
* @since 2.0.1
*/
protected function sort(array &$branches): void
{
foreach ($branches as $key => &$branch)
{
usort($branch->dates, function($a, $b) {
$startDateA = DateTime::createFromFormat('d-m-Y', $a->start);
$startDateB = DateTime::createFromFormat('d-m-Y', $b->start);
if ($startDateA == $startDateB)
{
$endDateA = DateTime::createFromFormat('d-m-Y', $a->end);
$endDateB = DateTime::createFromFormat('d-m-Y', $b->end);
return $endDateA <=> $endDateB;
}
return $startDateA <=> $startDateB;
});
}
}
/**
* Set Top
*
* Calculates the top position for each branch based on parameters for branch height and header height.
*
* @param array $branches Reference to the branches array.
*
* @return void
* @since 2.0.1
*/
protected function setTop(array &$branches): void
{
$branch_height = $this->params->get('branch_height', 30);
$header_height = $this->params->get('header_height', 24);
$i = 0;
foreach ($branches as $key => &$branch)
{
$branch->top = $header_height + ($branch_height * $i++);
}
}
/**
* Sanitize
*
* Sanitizes the branches by checking the existence and type of 'dates' and 'date->state'.
* Also modifies the state of each date entry within a branch.
*
* @param array $branches Reference to the branches array.
*
* @return void
* @since 2.0.1
*/
protected function sanitize(array &$branches): void
{
foreach ($branches as $key => &$branch)
{
if (empty($branch->dates) || !is_object($branch->dates))
{
unset($branches[$key]);
continue;
}
$branch->dates = (array) $branch->dates;
$remove = false;
foreach ($branch->dates as $k => &$date)
{
if (empty($date->state))
{
$remove = true;
continue;
}
$date->state = $this->makeSafe($key . '-' . $date->state);
}
if ($remove)
{
unset($branches[$key]);
}
}
}
/**
* Get css safe class name
*
* @param string $name The string to make safe
*
* @return string
* @since 2.0.1
*/
protected function makeSafe(string $name): string
{
// Ensure it doesn't start with a digit
if (preg_match('/^[0-9]/', $name))
{
$name = 'vcs-' . $name;
}
// Replace any non-alphanumeric characters with hyphens
$name = preg_replace('/[^a-zA-Z0-9]+/', '-', $name);
// Convert to lowercase
$name = strtolower($name);
return $name;
}
}