<?php
// api/manajemen_akun.php
// Endpoint khusus admin untuk mendapatkan data manajemen akun rumah ibadah
require_once __DIR__ . '/config/database.php';
require_once __DIR__ . '/helpers/response.php';
// CORS dan RBAC sudah diproses secara global di response.php

// Hanya admin yang boleh mengakses
if ($_SESSION['role'] !== 'admin') {
    sendError('Forbidden - Hanya admin yang dapat mengakses halaman ini', 403);
}

$db = getDB();
$method = getMethod();
$id = isset($_GET['id']) ? (int)$_GET['id'] : 0;

switch ($method) {

    // GET: Ambil semua rumah ibadah beserta statistik dan info akun
    case 'GET':
        if ($id > 0) {
            // Detail satu rumah ibadah
            $stmt = $db->prepare("
                SELECT ri.id, ri.nama, ri.jenis, ri.alamat, ri.no_wa,
                       ri.latitude, ri.longitude, ri.radius_meter, ri.created_at,
                       u.id AS user_id, u.username, u.password_plain, u.created_at AS akun_dibuat,
                       (SELECT COUNT(*) FROM penduduk_miskin pm WHERE pm.rumah_ibadah_id = ri.id AND pm.status_proximity = 'dalam_radius') AS pm_dalam_radius,
                       (SELECT COUNT(*) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS total_penyaluran,
                       (SELECT COUNT(*) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id AND lb.tipe_bantuan = 'Pemberdayaan') AS bantuan_pemberdayaan,
                       (SELECT COUNT(*) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id AND lb.tipe_bantuan = 'Konsumtif') AS bantuan_konsumtif,
                       (SELECT IFNULL(SUM(lb.nilai_bantuan), 0) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS total_nilai_bantuan,
                       (SELECT COUNT(DISTINCT lb.penduduk_miskin_id) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS jumlah_penerima_unik,
                       (SELECT lb.tanggal_bantuan FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id ORDER BY lb.tanggal_bantuan DESC LIMIT 1) AS tanggal_bantuan_terakhir
                FROM rumah_ibadah ri
                LEFT JOIN users u ON u.rumah_ibadah_id = ri.id
                WHERE ri.id = ?
            ");
            $stmt->bind_param('i', $id);
            $stmt->execute();
            $row = $stmt->get_result()->fetch_assoc();

            if (!$row) sendError('Data tidak ditemukan', 404);

            // Cast types
            $row['latitude'] = (float)$row['latitude'];
            $row['longitude'] = (float)$row['longitude'];
            $row['radius_meter'] = (int)$row['radius_meter'];
            $row['pm_dalam_radius'] = (int)$row['pm_dalam_radius'];
            $row['total_penyaluran'] = (int)$row['total_penyaluran'];
            $row['bantuan_pemberdayaan'] = (int)$row['bantuan_pemberdayaan'];
            $row['bantuan_konsumtif'] = (int)$row['bantuan_konsumtif'];
            $row['total_nilai_bantuan'] = (float)$row['total_nilai_bantuan'];
            $row['jumlah_penerima_unik'] = (int)$row['jumlah_penerima_unik'];
            // password_plain: null if no account
            if ($row['password_plain'] === null) $row['password_plain'] = null;

            // Ambil 5 riwayat bantuan terbaru
            $stmtLog = $db->prepare("
                SELECT lb.tipe_bantuan, lb.sub_kategori, lb.tanggal_bantuan, lb.nilai_bantuan,
                       pm.nama AS nama_penerima
                FROM log_bantuan lb
                JOIN penduduk_miskin pm ON pm.id = lb.penduduk_miskin_id
                WHERE lb.rumah_ibadah_id = ?
                ORDER BY lb.tanggal_bantuan DESC, lb.id DESC
                LIMIT 10
            ");
            $stmtLog->bind_param('i', $id);
            $stmtLog->execute();
            $logs = [];
            $resLog = $stmtLog->get_result();
            while ($l = $resLog->fetch_assoc()) {
                $l['nilai_bantuan'] = $l['nilai_bantuan'] ? (float)$l['nilai_bantuan'] : null;
                $logs[] = $l;
            }
            $row['riwayat_bantuan'] = $logs;

            sendSuccess($row);
        } else {
            // Semua rumah ibadah dengan ringkasan statistik
            $sql = "
                SELECT ri.id, ri.nama, ri.jenis, ri.alamat, ri.no_wa,
                       ri.latitude, ri.longitude, ri.radius_meter, ri.created_at,
                       u.id AS user_id, u.username,
                       (SELECT COUNT(*) FROM penduduk_miskin pm WHERE pm.rumah_ibadah_id = ri.id AND pm.status_proximity = 'dalam_radius') AS pm_dalam_radius,
                       (SELECT COUNT(*) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS total_penyaluran,
                       (SELECT IFNULL(SUM(lb.nilai_bantuan), 0) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS total_nilai_bantuan,
                       (SELECT COUNT(DISTINCT lb.penduduk_miskin_id) FROM log_bantuan lb WHERE lb.rumah_ibadah_id = ri.id) AS jumlah_penerima_unik
                FROM rumah_ibadah ri
                LEFT JOIN users u ON u.rumah_ibadah_id = ri.id
                ORDER BY ri.created_at DESC
            ";
            $result = $db->query($sql);
            $rows = [];
            while ($r = $result->fetch_assoc()) {
                $r['latitude'] = (float)$r['latitude'];
                $r['longitude'] = (float)$r['longitude'];
                $r['radius_meter'] = (int)$r['radius_meter'];
                $r['pm_dalam_radius'] = (int)$r['pm_dalam_radius'];
                $r['total_penyaluran'] = (int)$r['total_penyaluran'];
                $r['total_nilai_bantuan'] = (float)$r['total_nilai_bantuan'];
                $r['jumlah_penerima_unik'] = (int)$r['jumlah_penerima_unik'];
                $rows[] = $r;
            }
            sendSuccess($rows);
        }
        break;

    // DELETE: Hapus akun user rumah ibadah (tidak hapus rumah ibadahnya)
    case 'DELETE':
        if ($id <= 0) sendError('ID wajib disertakan');
        $stmt = $db->prepare("DELETE FROM users WHERE rumah_ibadah_id = ?");
        $stmt->bind_param('i', $id);
        if ($stmt->execute()) {
            sendSuccess(null, $stmt->affected_rows > 0 ? 'Akun berhasil dihapus' : 'Tidak ada akun untuk dihapus');
        } else {
            sendError('Gagal menghapus akun');
        }
        break;

    default:
        sendError('Method tidak diizinkan', 405);
}