package com.gaotao.modules.handlingunit.controller;

import com.gaotao.common.exception.XJException;
import com.gaotao.common.utils.R;
import com.gaotao.modules.handlingunit.entity.HandlingUnit;
import com.gaotao.modules.handlingunit.service.HandlingUnitService;
import com.gaotao.modules.handlingunit.service.HandlingUnitIdGeneratorService;
import com.gaotao.modules.handlingunit.service.HandlingUnitIdLogService;
import com.gaotao.modules.autoWareHourceHaian.service.HaiAnPdaLabelSplitService;
import com.gaotao.modules.handlingunit.dao.HandlingUnitMapper;
import com.gaotao.modules.sys.controller.AbstractController;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * PDA标签查询控制器
 *
 * <p><b>主要功能：</b></p>
 * <ul>
 *   <li>扫描标签查询HandlingUnit信息</li>
 *   <li>显示物料编码、库位、仓库、批次号、wdr等信息</li>
 * </ul>
 *
 * @author System
 * @since 2025-01-23
 */
@Slf4j
@RestController
@RequestMapping("/pda/label")
public class PdaLabelController extends AbstractController {

    @Autowired
    private HandlingUnitService handlingUnitService;

    @Autowired
    private HandlingUnitMapper handlingUnitMapper;

    @Autowired
    private HandlingUnitIdGeneratorService handlingUnitIdGeneratorService;

    @Autowired
    private HandlingUnitIdLogService handlingUnitIdLogService;

    @Autowired
    private HaiAnPdaLabelSplitService haiAnPdaLabelSplitService;

    /**
     * @Author System
     * @Description 查询标签信息
     * @Date 2025/01/23
     * @Param [Map<String, Object>]
     * @return com.gaotao.common.utils.R
     **/
    @PostMapping("query")
    public R queryLabelInfo(@RequestBody Map<String, Object> params) {
        try {
            String site = params == null ? null : (String) params.get("site");
            String labelCode = params == null ? null : (String) params.get("labelCode");

            log.info("=== 开始查询标签信息 ===");

            if (site == null || site.trim().isEmpty()) {
                return R.error("工厂编码不能为空");
            }
            if (labelCode == null || labelCode.trim().isEmpty()) {
                return R.error("标签编码不能为空");
            }

            // 按登录大工厂展开小工厂后查标签。查无返回 null；多小工厂重复时由服务抛出明确异常。- rqrq
            HandlingUnit handlingUnit = handlingUnitService.queryPdaLabelByBigSite(site, labelCode);
            if (handlingUnit == null) {
                log.warn("标签不存在: site={}, labelCode={}", site, labelCode);
                return R.error("标签不存在");
            }
            // 查询只回显真实X/N/Y/Q状态；拆分、发料等写操作各自执行状态准入，Q不会因查询被使用。- rqrq

            log.info("查询到标签信息: unitId={}, partNo={}, locationId={}, warehouseId={}, batchNo={}, wdr={}",
                    handlingUnit.getUnitId(),
                    handlingUnit.getPartNo(),
                    handlingUnit.getLocationId(),
                    handlingUnit.getWarehouseId(),
                    handlingUnit.getBatchNo(),
                    handlingUnit.getWdr());

            log.info("=== 标签信息查询完成 ===");

            return R.ok().put("data", handlingUnit);

        } catch (Exception e) {
            log.error("=== 查询标签信息失败 === 错误信息: {}", e.getMessage(), e);
            return R.error("查询失败: " + e.getMessage());
        }
    }

    /**
     * @Author rqrq
     * @Description 取消WMS预定 - rqrq
     * @Date 2025/11/01
     * @Param [Map<String, Object>]
     * @return com.gaotao.common.utils.R
     **/
    @PostMapping("cancelReserve")
    public R cancelReserve(@RequestBody Map<String, Object> params) throws Exception {
        String site = (String) params.get("site");
        String unitId = (String) params.get("unitId");

        log.info("=== 开始取消WMS预定 - rqrq ===");
        log.info("工厂: {}, 标签编码: {}", site, unitId);

        // 参数验证 - rqrq
        if (site == null || site.trim().isEmpty()) {
            throw new RuntimeException("工厂编码不能为空");
        }

        if (unitId == null || unitId.trim().isEmpty()) {
            throw new RuntimeException("标签编码不能为空");
        }

        // 查询HandlingUnit是否存在 - rqrq
        HandlingUnit handlingUnit = handlingUnitService.lambdaQuery()
                .eq(HandlingUnit::getSite, site)
                .eq(HandlingUnit::getUnitId, unitId.trim())
                .one();

        if (handlingUnit == null) {
            log.warn("标签不存在 - rqrq: site={}, unitId={}", site, unitId);
            throw new RuntimeException("标签不存在");
        }

        // 检查是否被预定 - rqrq
        if (!"Y".equals(handlingUnit.getReserveFlag())) {
            log.warn("标签未被预定 - rqrq: site={}, unitId={}", site, unitId);
            throw new RuntimeException("该标签未被WMS预定");
        }

        // 调用Mapper方法取消预定 - rqrq
        handlingUnitMapper.cancelReserve(site, unitId);

        log.info("取消WMS预定成功 - rqrq: unitId={}", unitId);
        log.info("=== 取消WMS预定完成 - rqrq ===");
        return R.ok();
    }

    /**
     * @Author System
     * @Description 标签拆分 - 将原标签拆分出指定数量到新标签
     * @Date 2025/01/18
     * @Param [Map<String, Object>]
     * @return com.gaotao.common.utils.R
     **/
    @PostMapping("split")
    @Transactional
    public R splitLabel(@RequestBody Map<String, Object> params) {
        try {
            String site = (String) params.get("site");
            String unitId = (String) params.get("unitId");
            String operatorName = (String) params.get("operatorName");
            BigDecimal splitQty = new BigDecimal(params.get("splitQty").toString());

            log.info("=== 开始标签拆分 ===");
            log.info("工厂: {}, 原标签: {}, 拆分数量: {}, 操作人: {}", site, unitId, splitQty, operatorName);

            // 1. 参数验证
            if (site == null || site.trim().isEmpty()) {
                throw new XJException("工厂编码不能为空");
            }

            if (unitId == null || unitId.trim().isEmpty()) {
                throw new XJException("标签编码不能为空");
            }

            if (splitQty.compareTo(BigDecimal.ZERO) <= 0) {
                throw new XJException("拆分数量必须大于0");
            }

            // 2. 查询原标签
            HandlingUnit originalUnit = handlingUnitService.lambdaQuery()
                    .eq(HandlingUnit::getSite, site)
                    .eq(HandlingUnit::getUnitId, unitId)
                    .one();

            if (originalUnit == null) {
                throw new XJException("原标签不存在");
            }

            // 3. 验证库存状态
            if (!"Y".equals(originalUnit.getInStockFlag()) && !"X".equals(originalUnit.getInStockFlag())) {
                throw new XJException("该标签库存已被消耗，不能拆分");
            }

            // 4. 验证拆分数量
            BigDecimal originalQty = originalUnit.getQty();
            if (splitQty.compareTo(originalQty) >= 0) {
                throw new XJException("拆分数量必须小于原标签数量(" + originalQty + ")");
            }

            // 5. 生成新标签编码
            String newUnitId = handlingUnitIdGeneratorService.generateUnitId(site);
            log.info("生成新标签编码: {}", newUnitId);

            // 6. 创建新标签（复制原标签所有信息，只修改数量）
            HandlingUnit newUnit = new HandlingUnit();
            BeanUtils.copyProperties(originalUnit, newUnit);
            newUnit.setUnitId(newUnitId);
            newUnit.setQty(splitQty); // 新标签数量
            newUnit.setOriginalQty(splitQty); // 新标签原始数量
            newUnit.setSourceType("SPLIT"); // 来源类型：拆分
            newUnit.setParentUnitId(unitId); // 原标签编码
            newUnit.setCreatedDate(new Date());
            newUnit.setCreatedBy(operatorName);
            newUnit.setModifiedDate(new Date());
            newUnit.setModifiedBy(operatorName);
            newUnit.setRemark("从标签 " + unitId + " 拆分");
            // 新标签不得继承原标签预定：预定仍留在原标签剩余量上，避免同一预定单据挂两张标签。海安手工分拣拆分也依赖此口径 - rqrq
            newUnit.setReserveFlag("N");
            newUnit.setReserveOrderRef1(null);
            newUnit.setReserveOrderRef2(null);
            newUnit.setReserveOrderRef3(null);

            // 7. 保存新标签
            boolean saveResult = handlingUnitService.save(newUnit);
            if (!saveResult) {
                log.error("严重错误：新标签保存返回失败！unitId={}", newUnitId);
                handlingUnitIdLogService.logUnitIdGeneration(
                    newUnitId, site, "LABEL_SPLIT", unitId,
                    "", originalUnit.getPartNo(), originalUnit.getBatchNo(),
                    splitQty.doubleValue(), operatorName,
                    "N", "保存失败-save返回false"
                );
                throw new XJException("新标签保存失败(save返回false): " + newUnitId);
            }

            // 8. 记录新标签生成日志
            handlingUnitIdLogService.logUnitIdGeneration(
                newUnitId, site, "LABEL_SPLIT", unitId,
                "", originalUnit.getPartNo(), originalUnit.getBatchNo(),
                splitQty.doubleValue(), operatorName,
                "Y", "标签拆分成功"
            );

            // 9. 更新原标签数量
            BigDecimal remainQty = originalQty.subtract(splitQty);
            originalUnit.setQty(remainQty);
            originalUnit.setModifiedDate(new Date());
            originalUnit.setModifiedBy(operatorName);

            boolean updateResult = handlingUnitService.updateById(originalUnit);
            if (!updateResult) {
                log.error("严重错误：原标签更新失败！unitId={}", unitId);
                throw new XJException("原标签更新失败");
            }

            // 海安账套（site以54开头）：若原标签已在haian_pallet_detail，同步回写剩余qty；未入盘则跳过 - rqrq
            haiAnPdaLabelSplitService.syncPalletDetailQtyAfterSplit(
                    originalUnit.getSite(), unitId, remainQty);

            log.info("=== 标签拆分成功 ===");
            log.info("原标签: {} 剩余数量: {}", unitId, remainQty);
            log.info("新标签: {} 数量: {}", newUnitId, splitQty);

            // 10. 返回结果（包含原标签和新标签ID，用于打印）
            Map<String, Object> result = new HashMap<>();
            result.put("originalUnitId", unitId);
            result.put("newUnitId", newUnitId);
            result.put("originalQty", originalQty);
            result.put("remainQty", remainQty);
            result.put("splitQty", splitQty);

            return R.ok().put("data", result);

        } catch (XJException e) {
            log.error("=== 标签拆分失败 === 错误信息: {}", e.getMessage());
            return R.error(e.getMessage());
        } catch (Exception e) {
            log.error("=== 标签拆分失败 === 错误信息: {}", e.getMessage(), e);
            return R.error("拆分失败: " + e.getMessage());
        }
    }
}