package com.zy.asrs.utils;

import com.zy.asrs.entity.LocMast;

/**
 * 库位别名规则：不改变原始 loc_no，只按库区和重排排号生成展示别名。
 */
public final class LocAliasUtils {

    private LocAliasUtils() {
    }

    public static Integer areaIdByCrnNo(Integer crnNo) {
        if (crnNo == null) {
            return null;
        }
        if (crnNo >= 1 && crnNo <= 6) {
            return 1;
        }
        if (crnNo >= 7 && crnNo <= 18) {
            return 2;
        }
        if (crnNo >= 19 && crnNo <= 28) {
            return 3;
        }
        return null;
    }

    public static String areaCode(Integer areaId) {
        if (areaId == null) {
            return null;
        }
        switch (areaId) {
            case 1:
                return "A";
            case 2:
                return "B";
            case 3:
                return "C";
            default:
                return null;
        }
    }

    public static String areaName(Integer areaId) {
        String areaCode = areaCode(areaId);
        if (areaCode == null) {
            return areaId == null ? "" : String.valueOf(areaId);
        }
        return areaCode + "区";
    }

    public static String buildAlias(Integer areaId, Integer row, Integer bay, Integer lev, Integer minAreaRow) {
        String areaCode = areaCode(areaId);
        if (areaCode == null || row == null || bay == null || lev == null || minAreaRow == null) {
            return null;
        }
        int aliasRow = row - minAreaRow + 1;
        if (aliasRow <= 0) {
            return null;
        }
        return areaCode + "-" + String.format("%02d%03d%02d", aliasRow, bay, lev);
    }

    public static String displayLocNo(LocMast locMast) {
        if (locMast == null) {
            return null;
        }
        if (locMast.getLocAlias() != null && locMast.getLocAlias().trim().length() > 0) {
            return locMast.getLocAlias();
        }
        return locMast.getLocNo();
    }
}