<?php

namespace App\Models;

use CodeIgniter\Model;

class BagPriceModel extends Model
{
    protected $table         = 'bag_price';
    protected $primaryKey    = 'bp_idx';
    protected $returnType    = 'object';
    protected $useTimestamps = false;
    protected $allowedFields = [
        'bp_lg_idx', 'bp_bag_code', 'bp_bag_name',
        'bp_order_price', 'bp_wholesale', 'bp_consumer',
        'bp_start_date', 'bp_end_date', 'bp_state',
        'bp_regdate', 'bp_moddate', 'bp_reg_mb_idx',
    ];

    /**
     * 같은 봉투코드에 단가 기간이 겹쳐도 "나중 등록 단가"가 우선되도록
     * 활성 단가를 등록일/PK 역순으로 정렬해 봉투코드별 1건만 남긴다.
     *
     * @return array<string, object>
     */
    public function latestActiveMapByBagCode(int $lgIdx): array
    {
        $rows = $this->where('bp_lg_idx', $lgIdx)
            ->where('bp_state', 1)
            ->orderBy('bp_regdate', 'DESC')
            ->orderBy('bp_idx', 'DESC')
            ->findAll();

        $map = [];
        foreach ($rows as $row) {
            $code = (string) ($row->bp_bag_code ?? '');
            if ($code === '' || isset($map[$code])) {
                continue;
            }
            $map[$code] = $row;
        }

        return $map;
    }

    public function latestActiveByBagCode(int $lgIdx, string $bagCode): ?object
    {
        $bagCode = trim($bagCode);
        if ($bagCode === '') {
            return null;
        }

        return $this->where('bp_lg_idx', $lgIdx)
            ->where('bp_bag_code', $bagCode)
            ->where('bp_state', 1)
            ->orderBy('bp_regdate', 'DESC')
            ->orderBy('bp_idx', 'DESC')
            ->first();
    }
}