<?php

namespace App\Repositories\Admin\Log;

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

final class MemberPasswdModifyLogRepository
{
    private const TABLE = 'mem_passwd_modify';

    public function paginate(array $filters, int $perPage = 30): LengthAwarePaginator
    {
        $q = DB::table(self::TABLE . ' as p')
            ->select(['p.seq', 'p.state', 'p.info', 'p.rgdate']);

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

        // state
        if (!empty($filters['state'])) {
            $q->where('p.state', $filters['state']);
        }

        // mem_no (JSON)
        if (($filters['mem_no'] ?? null) !== null) {
            $q->whereRaw(
                "JSON_UNQUOTE(JSON_EXTRACT(p.info, '$.mem_no')) = ?",
                [(string)((int)$filters['mem_no'])]
            );
        }

        // type (신포맷)
        $type = trim((string)($filters['type'] ?? ''));
        if ($type !== '') {
            $q->whereRaw(
                "JSON_UNQUOTE(JSON_EXTRACT(p.info, '$.type')) = ?",
                [$type]
            );
        }

        // email (구포맷)
        $email = trim((string)($filters['email'] ?? ''));
        if ($email !== '') {
            $like = '%' . $this->escapeLike($email) . '%';

            $q->where(function ($qq) use ($like) {
                $qq->whereRaw("JSON_UNQUOTE(JSON_EXTRACT(p.info, '$.user_email')) LIKE ?", [$like])
                    ->orWhereRaw("JSON_UNQUOTE(JSON_EXTRACT(p.info, '$.email')) LIKE ?", [$like]);
            });
        }

        // ip: 신포맷 remote_addr prefix OR 구포맷 auth_key/info contains
        $ip = trim((string)($filters['ip'] ?? ''));
        if ($ip !== '') {
            $like = $this->escapeLike($ip) . '%';
            $like2 = '%' . $this->escapeLike($ip) . '%';

            $q->where(function ($qq) use ($like, $like2) {
                $qq->whereRaw("JSON_UNQUOTE(JSON_EXTRACT(p.info, '$.remote_addr')) LIKE ?", [$like])
                    ->orWhere('p.info', 'like', $like2);
            });
        }

        // q: info 전체 검색(필요할 때만)
        $kw = trim((string)($filters['q'] ?? ''));
        if ($kw !== '') {
            $q->where('p.info', 'like', '%' . $this->escapeLike($kw) . '%');
        }

        $q->orderByDesc('p.rgdate')->orderByDesc('p.seq');

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

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