<?php
header('Content-Type: application/json');
require 'Connection.php';
session_start(); // Penting untuk tahu siapa yang login

$response = [
    "status" => "error",
    "leaderboard" => [],
    "user_rank" => null
];

// 1. Ambil Top 10 Global
$query = "SELECT username, score FROM leaderboard ORDER BY score DESC LIMIT 10";
$result = $conn->query($query);

if ($result && $result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        $response['leaderboard'][] = $row;
    }
}

// 2. Ambil Ranking User yang sedang Login (Jika ada session)
if (isset($_SESSION['user_id'])) {
    $my_id = $_SESSION['user_id'];
    
    // Ambil score user saat ini
    $scoreQuery = $conn->prepare("SELECT username, score FROM leaderboard WHERE user_id = ?");
    $scoreQuery->bind_param("i", $my_id);
    $scoreQuery->execute();
    $scoreResult = $scoreQuery->get_result();

    if ($scoreRow = $scoreResult->fetch_assoc()) {
        $myScore = $scoreRow['score'];
        $myUsername = $scoreRow['username'];

        // Hitung Ranking (Count berapa orang yang score-nya lebih tinggi)
        // Logika: Jumlah orang dengan score > score saya, ditambah 1
        $rankQuery = $conn->prepare("SELECT COUNT(*) as rank_above FROM leaderboard WHERE score > ?");
        $rankQuery->bind_param("i", $myScore);
        $rankQuery->execute();
        $rankResult = $rankQuery->get_result();
        $rankRow = $rankResult->fetch_assoc();
        
        $myRank = $rankRow['rank_above'] + 1;

        $response['user_rank'] = [
            "username" => $myUsername,
            "score" => $myScore,
            "rank" => $myRank
        ];
    }
}

$response['status'] = "success";
echo json_encode($response);

$conn->close();
?>