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public_html/GYA2/api/

admin_data.php
complete_session.php
export_csv.php
save_maze.php
save_reaction.php
save_simon.php
start_session.php

`save_reaction.php`

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<?php
require __DIR__ . '/../config.php';

header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode(['error' => 'Method not allowed']);
    exit;
}

$data = json_decode(file_get_contents('php://input'), true);

if (!$data) {
    http_response_code(400);
    echo json_encode(['error' => 'Invalid JSON']);
    exit;
}

$pid      = (int)($data['participant_id'] ?? 0);
$round    = (int)($data['round_number'] ?? 0);
$ms       = (int)($data['reaction_ms'] ?? 0);
$premature = (int)($data['was_premature'] ?? 0);
$delay    = (int)($data['delay_ms'] ?? 0);

if ($pid <= 0 || $round <= 0 || $delay <= 0) {
    http_response_code(400);
    echo json_encode(['error' => 'Invalid parameters']);
    exit;
}

try {
    $pdo = getDB();
    $stmt = $pdo->prepare(
        'INSERT INTO reaction_times (participant_id, round_number, reaction_ms, was_premature, delay_ms)
         VALUES (:pid, :round, :ms, :premature, :delay)'
    );
    $stmt->execute([
        ':pid'       => $pid,
        ':round'     => $round,
        ':ms'        => $ms,
        ':premature' => $premature,
        ':delay'     => $delay,
    ]);

    echo json_encode(['success' => true]);
} catch (PDOException $e) {
    http_response_code(500);
    echo json_encode(['error' => 'Database error']);
}