<?php
declare(strict_types=1);
@ini_set('display_errors', '1');
@error_reporting(E_ALL);

require_once __DIR__ . '/../includes/db.php';

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

$response = ['success' => false, 'message' => '', 'error' => ''];

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $input = file_get_contents('php://input');
    $data = json_decode($input, true);

    $patternName = $data['pattern_name'] ?? null;
    $intensity = $data['intensity'] ?? null;
    $durationSeconds = $data['duration_seconds'] ?? null;

    if ($patternName === null || $intensity === null || $durationSeconds === null) {
        $response['error'] = 'Missing required parameters.';
    } else {
        try {
            $pdo = db();
            $stmt = $pdo->prepare(
                'INSERT INTO massage_sessions (pattern_name, intensity, duration_seconds) VALUES (:pattern_name, :intensity, :duration_seconds)'
            );
            $stmt->bindParam(':pattern_name', $patternName);
            $stmt->bindParam(':intensity', $intensity, PDO::PARAM_STR); // Use PARAM_STR for float to avoid precision issues
            $stmt->bindParam(':duration_seconds', $durationSeconds, PDO::PARAM_INT);
            $stmt->execute();

            $response['success'] = true;
            $response['message'] = 'Session logged successfully.';
        } catch (PDOException $e) {
            $response['error'] = 'Database error: ' . $e->getMessage();
        } catch (Exception $e) {
            $response['error'] = 'Server error: ' . $e->getMessage();
        }
    }
} else {
    $response['error'] = 'Invalid request method.';
}

echo json_encode($response);