genderwatchprotocol/dataCollector/dataCollector.php

<?php
require $_SERVER['DOCUMENT_ROOT'] . '/spreadSheetReader/read_write_xlsx.php';
$fileName = $_SERVER['DOCUMENT_ROOT'] . '/data/data.xlsx';
function objectToArray($object, $fullJSON) {
    return [$object -> id,
        $object -> lastSave,
        $fullJSON,
        $object -> timeWatchM,
        $object -> timeWatchW,
        $object -> timeWatchD,
        $object -> countWatchM,
        $object -> countWatchW,
        $object -> countWatchD];
}

$databaseAddress = "127.0.0.1";
$databasePort = "3306";
$databaseName = "u517357132_genderwatchpro";
$databaseUser = "u517357132_genderwatchpro";
$databasePassword = "zU!7gRHA6x";
$conn = new mysqli($databaseAddress, $databaseUser, $databasePassword, $databaseName);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} else {
    echo "connection sucessful<br>";
}

function saveToDatabase($contentArray, $conn) {
    echo "sending Query to Database<br>";
    $sql = "INSERT INTO `topics` (`id`, `fullJSON`, `timeWatchM`,`timeWatchW`, `timeWatchD`, `countWatchM`, `countWatchW`, `countWatchD`) values ($contentArray[0], $contentArray[2], $contentArray[3], $contentArray[4], $contentArray[5], $contentArray[6], $contentArray[7], $contentArray[8]) ON DUPLICATE KEY UPDATE `id` = $contentArray[0]";
    $result = $conn->query($sql);
    echo "Query sent<br>";
    echo $result;
    return $result;
}

function getFromDatabase() {
    return [];
}

$entityBody = '{"lastSave": 0, "timeWatchM": 0, "timeWatchW": 0, "timeWatchD": 0, "countWatchM": 0, "countWatchW": 0, "countWatchD": 0, "id":"test","watches":[{"actions":[]},{"actions":[]},{"actions":[]}]}';
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $entityBody = file_get_contents('php://input');
    $entityBodyObject = json_decode($entityBody);

    echo "POST Request received.<br>";

    if(property_exists($entityBodyObject, "id")) {
        saveToDatabase(objectToArray($entityBodyObject, $entityBody), $conn);
        echo "<br>Data saved.<br>";
    }
} elseif($_SERVER['REQUEST_METHOD'] === 'GET') {
    download_xlsxFile(getFromDatabase());
} else {
    echo "invalid Request.<br> Type: ".$_SERVER['REQUEST_METHOD'];
}



$conn->close();