<?php

namespace App\Repositories\Admin\Log;

use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\DB;

final class MemberAccountLogRepository
{
    private const TABLE = 'mem_account_log';

    public function paginate(array $filters, int $perPage = 30): LengthAwarePaginator
    {
        $q = DB::table(self::TABLE . ' as l')
            ->select([
                'l.seq',
                'l.mem_no',
                'l.request_data',
                'l.result_data',
                'l.request_time',
                'l.result_time',
            ]);

        // 기간(요청시간 기준)
        if (!empty($filters['date_from'])) {
            $q->where('l.request_time', '>=', $filters['date_from'] . ' 00:00:00');
        }
        if (!empty($filters['date_to'])) {
            $q->where('l.request_time', '<=', $filters['date_to'] . ' 23:59:59');
        }

        // mem_no
        if (($filters['mem_no'] ?? null) !== null) {
            $q->where('l.mem_no', (int)$filters['mem_no']);
        }

        // bank_code (요청 JSON)
        $bank = trim((string)($filters['bank_code'] ?? ''));
        if ($bank !== '') {
            $q->whereRaw(
                "JSON_UNQUOTE(JSON_EXTRACT(l.request_data, '$.bank_code')) = ?",
                [$bank]
            );
        }

        // status (결과 JSON)
        $status = trim((string)($filters['status'] ?? ''));
        if ($status !== '') {
            if ($status === 'ok') {
                $q->whereRaw("JSON_EXTRACT(l.result_data, '$.status') = 200");
            } elseif ($status === 'fail') {
                $q->whereRaw("JSON_EXTRACT(l.result_data, '$.status') <> 200");
            } elseif (ctype_digit($status)) {
                $q->whereRaw("JSON_EXTRACT(l.result_data, '$.status') = ?", [(int)$status]);
            }
        }

        // account (요청 JSON) - 부분검색
        $account = trim((string)($filters['account'] ?? ''));
        if ($account !== '') {
            $like = '%' . $this->escapeLike($account) . '%';
            $q->whereRaw(
                "JSON_UNQUOTE(JSON_EXTRACT(l.request_data, '$.account')) LIKE ?",
                [$like]
            );
        }

        // name (요청 JSON: mam_accountname)
        $name = trim((string)($filters['name'] ?? ''));
        if ($name !== '') {
            $like = '%' . $this->escapeLike($name) . '%';
            $q->whereRaw(
                "JSON_UNQUOTE(JSON_EXTRACT(l.request_data, '$.mam_accountname')) LIKE ?",
                [$like]
            );
        }

        // q: request/result 전체 LIKE (운영에서 필요할 때만)
        $kw = trim((string)($filters['q'] ?? ''));
        if ($kw !== '') {
            $like = '%' . $this->escapeLike($kw) . '%';
            $q->where(function ($qq) use ($like) {
                $qq->where('l.request_data', 'like', $like)
                    ->orWhere('l.result_data', 'like', $like);
            });
        }

        $q->orderByDesc('l.request_time')->orderByDesc('l.seq');

        return $q->paginate($perPage)->withQueryString();
    }

    private function escapeLike(string $s): string
    {
        return str_replace(['\\', '%', '_'], ['\\\\', '\%', '\_'], $s);
    }
}