<?php
/**
 * api/bantuan.php — Status bantuan sosial per rumah tangga (KF-17).
 *
 * GET  ?master=1        → daftar master jenis_bantuan
 * GET  ?warga_id=ID     → daftar bantuan untuk satu warga
 * POST {warga_id, jenis_bantuan_id, tgl_mulai, tgl_berakhir, is_aktif, keterangan}
 * DELETE ?id=ID
 */
require_once __DIR__ . '/../config/db.php';
require_once __DIR__ . '/helpers.php';
require_once __DIR__ . '/../config/activity.php';

$pdo = Database::getConnection();
$method = $_SERVER['REQUEST_METHOD'];
requireOperatorForMutation();

switch ($method) {
    case 'GET':
        if (isset($_GET['master'])) {
            sendSuccess($pdo->query("SELECT id, kode, nama, deskripsi FROM jenis_bantuan ORDER BY id")->fetchAll(), 'Jenis Bantuan');
        }
        $wargaId = $_GET['warga_id'] ?? null;
        if (!$wargaId) sendError('warga_id wajib');
        $stmt = $pdo->prepare("
            SELECT bs.id, bs.jenis_bantuan_id, jb.kode, jb.nama,
                   bs.tgl_mulai, bs.tgl_berakhir, bs.is_aktif, bs.keterangan
            FROM bantuan_sosial bs
            JOIN jenis_bantuan jb ON jb.id = bs.jenis_bantuan_id
            WHERE bs.warga_id = ?
            ORDER BY bs.id DESC
        ");
        $stmt->execute([$wargaId]);
        sendSuccess($stmt->fetchAll(), 'Bantuan warga');
        break;

    case 'POST':
        $d = getInput();
        if (empty($d['warga_id']) || empty($d['jenis_bantuan_id'])) sendError('warga_id & jenis_bantuan_id wajib');
        $pdo->prepare("
            INSERT INTO bantuan_sosial (warga_id, jenis_bantuan_id, tgl_mulai, tgl_berakhir, is_aktif, keterangan)
            VALUES (?,?,?,?,?,?)
        ")->execute([
            $d['warga_id'], $d['jenis_bantuan_id'],
            ($d['tgl_mulai'] ?? '') ?: null, ($d['tgl_berakhir'] ?? '') ?: null,
            isset($d['is_aktif']) ? (int)$d['is_aktif'] : 1, ($d['keterangan'] ?? '') ?: null,
        ]);
        $id = (int)$pdo->lastInsertId();
        logActivity($pdo, 'create', 'bantuan_sosial', $id, "Tambah bantuan warga #{$d['warga_id']}");
        sendSuccess(['id' => $id], 'Bantuan ditambahkan', 201);
        break;

    case 'DELETE':
        $id = $_GET['id'] ?? null;
        if (!$id) sendError('ID wajib');
        $pdo->prepare("DELETE FROM bantuan_sosial WHERE id=?")->execute([$id]);
        logActivity($pdo, 'delete', 'bantuan_sosial', (int)$id, 'Hapus bantuan');
        sendSuccess(null, 'Bantuan dihapus');
        break;

    default:
        sendError('Method not allowed', 405);
}