<?php
/**
 * update_status.php — Update Status Rumah
 *
 * POST params:
 *   house_id  - ID rumah
 *   status    - Status baru (green/red/yellow)
 *   center_id - ID pusat keagamaan terdekat
 */

require_once 'koneksi.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    echo json_encode(['success' => false, 'message' => 'Hanya menerima POST']);
    exit;
}

$houseId  = intval($_POST['house_id']  ?? 0);
$status   = $conn->real_escape_string($_POST['status']    ?? 'green');
$centerId = intval($_POST['center_id'] ?? 0);

// Validasi status
$validStatuses = ['green', 'red', 'yellow'];
if (!in_array($status, $validStatuses)) {
    echo json_encode(['success' => false, 'message' => 'Status tidak valid']);
    exit;
}

// Validasi house_id
if ($houseId < 1) {
    echo json_encode(['success' => false, 'message' => 'house_id tidak valid']);
    exit;
}

// ========================
// Upsert status rumah
// ========================
// Cek apakah rumah sudah ada
$check = $conn->query("SELECT id FROM houses WHERE id = $houseId");
if ($check && $check->num_rows > 0) {
    // Update
    $sql = "UPDATE houses SET status='$status' WHERE id=$houseId";
} else {
    // Insert (ambil posisi dari fixed positions yang sama seperti di JS)
    // Posisi disimpan juga agar konsisten
    $lat = floatval($_POST['lat'] ?? 0);
    $lng = floatval($_POST['lng'] ?? 0);
    $sql = "INSERT INTO houses (id, latitude, longitude, status) VALUES ($houseId, $lat, $lng, '$status')";
}

if ($conn->query($sql)) {
    // ========================
    // Catat ke aid_logs
    // ========================
    if ($status === 'yellow' && $centerId > 0) {
        $logSql = "INSERT INTO aid_logs (house_id, religious_center_id, status, timestamp)
                   VALUES ($houseId, $centerId, 'helped', NOW())";
        $conn->query($logSql);
    } elseif ($status !== 'yellow') {
        // Batalkan bantuan — catat sebagai reverted
        $logSql = "INSERT INTO aid_logs (house_id, religious_center_id, status, timestamp)
                   VALUES ($houseId, $centerId, 'reverted', NOW())";
        $conn->query($logSql);
    }

    echo json_encode([
        'success'  => true,
        'house_id' => $houseId,
        'status'   => $status
    ]);
} else {
    echo json_encode(['success' => false, 'message' => $conn->error]);
}

$conn->close();