<?php
/**
* @ASCOOS-NAME : Ascoos OS
* @ASCOOS-VERSION : 26.0.0
* @ASCOOS-SUPPORT : support@ascoos.com
* @ASCOOS-BUGS : https://issues.ascoos.com
*
* @test OrbitalSimulation
*
* @desc <English> Simulates a satellite in circular orbit around Earth. Calculates orbital velocity, kinetic energy, and potential energy. Results are visualized and saved in JSON.
* @desc <Greek> ???????????? ???? ???????? ?? ??????? ?????? ???? ??? ?? ??. ?????????? ??? ???????? ????????, ??? ???????? ???????? ??? ?? ???????? ????????. ?? ???????????? ?????????????? ??? ????????????? ?? JSON.
*
* @since PHP 8.2.0
*/
declare(strict_types=1);
// <English> Import required Ascoos OS classes
// <Greek> ???????? ???????????? ??????? ??? Ascoos OS
use ASCOOS\OS\Kernel\Arrays\Physics\TPhysicsHandler; // <English> Physics calculations
// <Greek> ??????????? ???????
use ASCOOS\OS\Extras\Arrays\Graphs\TArrayGraphHandler; // <English> Graph generation
// <Greek> ?????????? ??????????
use ASCOOS\OS\Kernel\Arrays\Events\TEventHandler; // <English> Event logging
// <Greek> ????????? ?????????
use ASCOOS\OS\Kernel\Core\Errors\Messages\TErrorMessageHandler; // <English> Error handling
// <Greek> ?????????? ?????????
// <English> Define global paths for data and fonts
// <Greek> ??????? ????????? ????????? ??? ???????? ??? ??????????????
global $AOS_TMP_DATA_PATH, $AOS_FONTS_PATH;
// <English> Define configuration for file storage and chart rendering
// <Greek> ??????? ????????? ??? ?????????? ??????? ??? ?????????? ??????????
$properties = [
'file' => [
'baseDir' => $AOS_TMP_DATA_PATH . '/reports/orbital_simulation'
],
'LineChart' => [
'width' => 800,
'height' => 600,
'fontPath' => $AOS_FONTS_PATH . '/Murecho/Murecho-Regular.ttf',
'backgroundColorIndex' => 1,
'lineColorIndex' => 0,
'axisColorIndex' => 0
]
];
// <English> Initialize handlers
// <Greek> ???????????? ?????????
$physicsHandler = new TPhysicsHandler([], $properties);
$graphHandler = new TArrayGraphHandler([], $properties['LineChart']);
$eventHandler = new TEventHandler([], $properties);
$errorHandler = new TErrorMessageHandler('el-GR', $properties);
try {
// <English> Define physical parameters of the satellite
// <Greek> ??????? ??????? ?????????? ??? ?????????
$satelliteMass = 1000.0; // kg
$earthMass = 5.972e24; // kg
$orbitalRadius = 6.792e6; // m (Earth radius + 400 km)
$gravitationalConstant = 6.67430e-11; // m³ kg?¹ s?²
// <English> Calculate orbital velocity: v = ?(GM / r)
// <Greek> ??????????? ????????? ?????????: v = ?(GM / r)
$orbitalVelocity = $physicsHandler->OrbitalVelocity($gravitationalConstant, $earthMass, $orbitalRadius);
// <English> Calculate kinetic energy: K = ½ m v²
// <Greek> ??????????? ????????? ?????????: K = ½ m v²
$kineticEnergy = $physicsHandler->KineticEnergy($satelliteMass, $orbitalVelocity);
// <English> Calculate potential energy: U = -GMm / r
// <Greek> ??????????? ????????? ?????????: U = -GMm / r
$potentialEnergy = -$gravitationalConstant * $earthMass * $satelliteMass / $orbitalRadius;
// <English> Generate chart with calculated values
// <Greek> ?????????? ?????????? ?? ??? ????????????? ?????
$graphHandler->setArray([
['label' => 'Orbital Velocity (m/s)', 'value' => $orbitalVelocity],
['label' => 'Kinetic Energy (J)', 'value' => $kineticEnergy],
['label' => 'Potential Energy (J)', 'value' => $potentialEnergy]
], ['label', 'value']);
$graphHandler->createLineChart($properties['file']['baseDir'] . '/orbital_simulation.png');
// <English> Log completion event using TEventHandler
// <Greek> ????????? ????????? ??????????? ?? TEventHandler
$eventHandler->register('orbital_simulation_completed', 'astrophysics', fn() =>
$eventHandler->logger->log('Orbital simulation completed successfully', $eventHandler::DEBUG_LEVEL_INFO)
);
$eventHandler->trigger('orbital_simulation_completed', 'astrophysics');
// <English> Save JSON report with all results
// <Greek> ?????????? ???????? JSON ?? ??? ?? ????????????
$report = [
'satellite_mass' => $satelliteMass,
'earth_mass' => $earthMass,
'orbital_radius' => $orbitalRadius,
'gravitational_constant' => $gravitationalConstant,
'orbital_velocity' => $orbitalVelocity,
'kinetic_energy' => $kineticEnergy,
'potential_energy' => $potentialEnergy
];
file_put_contents(
$properties['file']['baseDir'] . '/orbital_report.json',
json_encode($report, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE)
);
// <English> Output summary to console
// <Greek> ???????? ??????? ???? ???????
echo "Orbital Simulation Complete.\n";
echo "Orbital Velocity: {$orbitalVelocity} m/s\n";
echo "Kinetic Energy: {$kineticEnergy} J\n";
echo "Potential Energy: {$potentialEnergy} J\n";
} catch (Exception $e) {
// <English> Handle exceptions and log error
// <Greek> ?????????? ?????????? ??? ????????? ?????????
$errorHandler->logError(1013, $e);
echo $errorHandler->getMessage(1013);
}
// <English> Free all handlers
// <Greek> ???????????? ???? ??? ?????????
$physicsHandler->Free($physicsHandler);
$graphHandler->Free($graphHandler);
$eventHandler->Free($eventHandler);
$errorHandler->Free($errorHandler);
?>
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