<?php

namespace app\common\service;

use app\common\model\InvStockLog;
use support\exception\BusinessException;

/**
 * 物品库存变化记录服务
 */
class InvStockLogService
{
    /**
     * 记录库存变化
     *
     * @param array $data 日志数据
     * @return InvStockLog
     * @throws BusinessException
     */
    public function record(array $data): InvStockLog
    {
        $required = ['item_id', 'change_type', 'change_qty', 'before_qty', 'after_qty'];
        foreach ($required as $field) {
            if (!isset($data[$field])) {
                throw new BusinessException("库存日志缺少必需字段: {$field}");
            }
        }

        return InvStockLog::create([
            'company_id' => $data['company_id'] ?? 0,
            'item_id' => $data['item_id'],
            'item_name_snap' => $data['item_name_snap'] ?? null,
            'change_type' => $data['change_type'],
            'change_qty' => $data['change_qty'],
            'before_qty' => $data['before_qty'],
            'after_qty' => $data['after_qty'],
            'biz_type' => $data['biz_type'] ?? null,
            'biz_no' => $data['biz_no'] ?? null,
            'operator_id' => $data['operator_id'] ?? null,
            'operator_name' => $data['operator_name'] ?? null,
            'remark' => $data['remark'] ?? null,
            'updated_at' => time(),
            'created_at' => time(),
        ]);
    }

    /**
     * 查询库存变化记录列表
     *
     * @param array $params 查询参数
     * @return array
     */
    public function getList(array $params): array
    {
        $query = InvStockLog::query()->with(['item']);

        // 物品ID筛选
        if (!empty($params['item_id'])) {
            $query->where('item_id', $params['item_id']);
        }

        // 变动类型筛选
        if (!empty($params['change_type'])) {
            $query->where('change_type', $params['change_type']);
        }

        // 业务类型筛选
        if (!empty($params['biz_type'])) {
            $query->where('biz_type', $params['biz_type']);
        }

        // 单据号筛选
        if (!empty($params['biz_no'])) {
            $query->where('biz_no', 'like', '%' . $params['biz_no'] . '%');
        }

        // 时间范围筛选
        if (!empty($params['start_time'])) {
            $query->where('created_at', '>=', strtotime($params['start_time']));
        }
        if (!empty($params['end_time'])) {
            $query->where('created_at', '<=', strtotime($params['end_time']));
        }

        // 排序
        $query->orderBy('id', 'desc');

        // 分页
        $perPage = $params['size'] ?? 20;
        $page = $params['current'] ?? 1;

        $result = $query->paginate($perPage, ['*'], 'page', $page);

        return [
            'records' => $result->getCollection()->map(function ($log) {
                return [
                    'id' => $log->id,
                    'item_id' => $log->item_id,
                    'item_name' => $log->item_name_snap,
                    'change_type' => $log->change_type,
                    'change_type_text' => InvStockLog::getChangeTypeText($log->change_type),
                    'change_qty' => $log->change_qty,
                    'before_qty' => $log->before_qty,
                    'after_qty' => $log->after_qty,
                    'biz_type' => $log->biz_type,
                    'biz_type_text' => $log->biz_type ? InvStockLog::getBizTypeText($log->biz_type) : null,
                    'biz_no' => $log->biz_no,
                    'operator_id' => $log->operator_id,
                    'operator_name' => $log->operator_name,
                    'remark' => $log->remark,
                    'created_at' => date('Y-m-d H:i:s', is_int($log->created_at)?$log->created_at:strtotime($log->created_at)),
                ];
            })->toArray(),
            'total' => $result->total(),
            'current' => $result->currentPage(),
            'size' => $result->perPage(),
        ];
    }
}