<?php
header('Content-Type: application/json');
require_once __DIR__ . '/../db/config.php';

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

if (!$input || empty($input['title']) || empty($input['artist'])) {
    echo json_encode(['success' => false, 'error' => 'Invalid input']);
    exit;
}

$title = $input['title'];
$artist = $input['artist'];
$cover = $input['cover'] ?? null;

try {
    $db = db();
    
    // Check if the last recorded song is the same to avoid duplicates on refresh
    $stmt = $db->prepare("SELECT title, artist FROM song_history ORDER BY played_at DESC LIMIT 1");
    $stmt->execute();
    $last = $stmt->fetch();
    
    if ($last && $last['title'] === $title && $last['artist'] === $artist) {
        echo json_encode(['success' => true, 'message' => 'Already recorded']);
        exit;
    }

    $stmt = $db->prepare("INSERT INTO song_history (title, artist, cover) VALUES (?, ?, ?)");
    $stmt->execute([$title, $artist, $cover]);
    
    echo json_encode(['success' => true]);
} catch (PDOException $e) {
    echo json_encode(['success' => false, 'error' => $e->getMessage()]);
}
