<?php
// ============================================================
// API DATA RUMAH IBADAH (Point / Marker + Radius Buffer)
// File: api_masjid.php
// Fields: nama_masjid, jenis, pic_masjid, alamat, radius_m (100-5000), latitude, longitude
// ============================================================

require_once 'config.php';

$method = $_SERVER['REQUEST_METHOD'];
$id     = isset($_GET['id']) ? (int)$_GET['id'] : null;

// ---- GET: Ambil semua data atau satu data ----
if ($method === 'GET') {
    $db = getDB();

    if ($id) {
        $stmt = $db->prepare("SELECT id, nama_masjid, jenis, pic_masjid, alamat, radius_m, latitude, longitude FROM data_masjid WHERE id = ?");
        $stmt->bind_param('i', $id);
        $stmt->execute();
        $result = $stmt->get_result()->fetch_assoc();
        if ($result) {
            $result['radius_m']  = (int)$result['radius_m'];
            $result['latitude']  = (float)$result['latitude'];
            $result['longitude'] = (float)$result['longitude'];
            echo json_encode($result);
        } else {
            http_response_code(404);
            echo json_encode(['error' => 'Data masjid tidak ditemukan']);
        }
    } else {
        $result = $db->query("SELECT id, nama_masjid, jenis, pic_masjid, alamat, radius_m, latitude, longitude FROM data_masjid ORDER BY id DESC");
        $rows = [];
        while ($row = $result->fetch_assoc()) {
            $row['radius_m']  = (int)$row['radius_m'];
            $row['latitude']  = (float)$row['latitude'];
            $row['longitude'] = (float)$row['longitude'];
            $rows[] = $row;
        }
        echo json_encode($rows);
    }
    $db->close();
    exit();
}

// ---- POST: Tambah masjid baru ----
if ($method === 'POST') {
    $input = json_decode(file_get_contents('php://input'), true);

    if (empty($input['nama_masjid']) || empty($input['pic_masjid']) || empty($input['alamat'])
        || !isset($input['latitude']) || !isset($input['longitude'])) {
        http_response_code(400);
        echo json_encode(['error' => 'Data tidak lengkap. Field wajib: nama_masjid, jenis, pic_masjid, alamat, latitude, longitude']);
        exit();
    }

    $nama_masjid = trim($input['nama_masjid']);
    $jenis       = isset($input['jenis']) ? trim($input['jenis']) : 'Masjid';
    $pic_masjid  = trim($input['pic_masjid']);
    $alamat      = trim($input['alamat']);
    $radius_m    = isset($input['radius_m']) ? max(100, min(5000, (int)$input['radius_m'])) : 500;
    $latitude    = (float)$input['latitude'];
    $longitude   = (float)$input['longitude'];

    $valid_jenis = ['Masjid','Gereja','Pura','Vihara','Klenteng'];
    if (!in_array($jenis, $valid_jenis)) $jenis = 'Masjid';

    $db   = getDB();
    $stmt = $db->prepare("INSERT INTO data_masjid (nama_masjid, jenis, pic_masjid, alamat, radius_m, latitude, longitude) VALUES (?, ?, ?, ?, ?, ?, ?)");
    $stmt->bind_param('ssssidd', $nama_masjid, $jenis, $pic_masjid, $alamat, $radius_m, $latitude, $longitude);

    if ($stmt->execute()) {
        $new_id = $db->insert_id;
        http_response_code(201);
        echo json_encode([
            'message'     => 'Data ibadah berhasil disimpan',
            'id'          => $new_id,
            'nama_masjid' => $nama_masjid,
            'jenis'       => $jenis,
            'pic_masjid'  => $pic_masjid,
            'alamat'      => $alamat,
            'radius_m'    => $radius_m,
            'latitude'    => $latitude,
            'longitude'   => $longitude
        ]);
    } else {
        http_response_code(500);
        echo json_encode(['error' => 'Gagal menyimpan data: ' . $stmt->error]);
    }
    $db->close();
    exit();
}

// ---- PUT: Update masjid ----
if ($method === 'PUT') {
    if (!$id) {
        http_response_code(400);
        echo json_encode(['error' => 'ID diperlukan untuk update']);
        exit();
    }

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

    // Update posisi saja (drag marker)
    if (isset($input['latitude']) && isset($input['longitude'])
        && !isset($input['nama_masjid']) && !isset($input['radius_m'])) {
        $latitude  = (float)$input['latitude'];
        $longitude = (float)$input['longitude'];
        $stmt = $db->prepare("UPDATE data_masjid SET latitude = ?, longitude = ? WHERE id = ?");
        $stmt->bind_param('ddi', $latitude, $longitude, $id);

    // Update radius saja (dari slider tanpa simpan form)
    } elseif (isset($input['radius_m']) && !isset($input['nama_masjid'])) {
        $radius_m = max(100, min(5000, (int)$input['radius_m']));
        $stmt = $db->prepare("UPDATE data_masjid SET radius_m = ? WHERE id = ?");
        $stmt->bind_param('ii', $radius_m, $id);

    } else {
        // Full update
        $nama_masjid = trim($input['nama_masjid'] ?? '');
        $jenis       = trim($input['jenis']       ?? 'Masjid');
        $pic_masjid  = trim($input['pic_masjid']  ?? '');
        $alamat      = trim($input['alamat']       ?? '');
        $radius_m    = isset($input['radius_m']) ? max(100, min(5000, (int)$input['radius_m'])) : 500;
        $latitude    = (float)($input['latitude']  ?? 0);
        $longitude   = (float)($input['longitude'] ?? 0);

        $valid_jenis = ['Masjid','Gereja','Pura','Vihara','Klenteng'];
        if (!in_array($jenis, $valid_jenis)) $jenis = 'Masjid';

        if (empty($nama_masjid) || empty($pic_masjid) || empty($alamat)) {
            http_response_code(400);
            echo json_encode(['error' => 'nama_masjid, pic_masjid, dan alamat wajib diisi']);
            exit();
        }

        $stmt = $db->prepare("UPDATE data_masjid SET nama_masjid = ?, jenis = ?, pic_masjid = ?, alamat = ?, radius_m = ?, latitude = ?, longitude = ? WHERE id = ?");
        $stmt->bind_param('sssiddi', $nama_masjid, $jenis, $pic_masjid, $alamat, $radius_m, $latitude, $longitude, $id);
    }

    if ($stmt->execute()) {
        echo json_encode(['message' => 'Data masjid berhasil diperbarui', 'id' => $id]);
    } else {
        http_response_code(500);
        echo json_encode(['error' => 'Gagal memperbarui data: ' . $stmt->error]);
    }
    $db->close();
    exit();
}

// ---- DELETE: Hapus masjid ----
if ($method === 'DELETE') {
    if (!$id) {
        http_response_code(400);
        echo json_encode(['error' => 'ID diperlukan untuk hapus']);
        exit();
    }

    $db   = getDB();
    $stmt = $db->prepare("DELETE FROM data_masjid WHERE id = ?");
    $stmt->bind_param('i', $id);

    if ($stmt->execute()) {
        if ($stmt->affected_rows > 0) {
            echo json_encode(['message' => 'Data masjid berhasil dihapus', 'id' => $id]);
        } else {
            http_response_code(404);
            echo json_encode(['error' => 'Data tidak ditemukan']);
        }
    } else {
        http_response_code(500);
        echo json_encode(['error' => 'Gagal menghapus data: ' . $stmt->error]);
    }
    $db->close();
    exit();
}

// Method tidak dikenal
http_response_code(405);
echo json_encode(['error' => 'Method tidak diizinkan']);
?>