<?php
header("Content-Type: application/json; charset=UTF-8");
require_once '../auth_helper.php';
requireAdminOrPengelola();
include_once '../db_connect.php';

$data = json_decode(file_get_contents("php://input"));

if (is_array($data)) {
    $conn->begin_transaction();
    $inserted = 0;
    $errors = [];
    foreach ($data as $item) {
        if (isset($item->lat) && isset($item->lng) && $item->lat !== '' && $item->lng !== '') {
            $nama          = $conn->real_escape_string($item->nama ?? '');
            $kategori      = $conn->real_escape_string($item->kategori_bantuan ?? 'Makan');
            $jumlah_jiwa   = (int)($item->jumlah_jiwa ?? 1);
            $lat           = (float)$item->lat;
            $lng           = (float)$item->lng;

            $query = "INSERT INTO penduduk_miskin (nama, kategori_bantuan, jumlah_jiwa, lat, lng)
                      VALUES ('$nama', '$kategori', $jumlah_jiwa, $lat, $lng)";

            if (!$conn->query($query)) {
                $errors[] = $conn->error;
            } else {
                $inserted++;
            }
        }
    }
    
    if (empty($errors) && $inserted > 0) {
        $conn->commit();
        echo json_encode(["status" => "success", "message" => "Berhasil mengimpor $inserted data penduduk miskin."]);
    } else if ($inserted === 0) {
        $conn->rollback();
        echo json_encode(["status" => "error", "message" => "Tidak ada data valid yang diimpor."]);
    } else {
        $conn->rollback();
        echo json_encode(["status" => "error", "message" => "Gagal mengimpor beberapa data. Transaksi dibatalkan.", "errors" => $errors]);
    }
} else {
    echo json_encode(["status" => "error", "message" => "Format data salah."]);
}
?>