package com.vincent.rsf.server.manager.schedules;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.vincent.rsf.framework.exception.CoolException;
import com.vincent.rsf.server.manager.entity.Matnr;
import com.vincent.rsf.server.manager.entity.WkOrder;
import com.vincent.rsf.server.manager.entity.WkOrderItem;
import com.vincent.rsf.server.manager.service.AsnOrderItemService;
import com.vincent.rsf.server.manager.service.AsnOrderService;
import com.vincent.rsf.server.manager.service.MatnrService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;

/**
 * ASN 单据压测数据定时生成器。
 */
@Slf4j
@Component
public class AsnOrderPressureSchedules {

    private static final DateTimeFormatter ORDER_CODE_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
    private static final String ORDER_TYPE = "in";
    private static final String ORDER_WORK_TYPE = "71";
    private static final Integer TENANT_ID = 1;
    private static final Long USER_ID = 51L;
    private static final String MEMO = "ASN_PRESSURE_TEST";
    private final AtomicBoolean running = new AtomicBoolean(false);

    @Autowired
    private AsnOrderService asnOrderService;
    @Autowired
    private AsnOrderItemService asnOrderItemService;
    @Autowired
    private MatnrService matnrService;

    @Value("${pressure.asn-order.enabled:false}")
    private boolean enabled;

    @Value("${pressure.asn-order.order-count-per-run:20}")
    private int orderCountPerRun;

    @Value("${pressure.asn-order.item-count-per-order:5}")
    private int itemCountPerOrder;

    @Value("${pressure.asn-order.item-qty:10}")
    private double itemQty;

    @Scheduled(cron = "${pressure.asn-order.cron:0/10 * * * * ?}")
    @Transactional(rollbackFor = Exception.class)
    public void insertPressureOrders() {
        if (!enabled) {
            return;
        }
        if (!running.compareAndSet(false, true)) {
            log.warn("ASN压测任务仍在执行中，本轮跳过");
            return;
        }
        try {
            if (orderCountPerRun <= 0 || itemCountPerOrder <= 0 || itemQty <= 0) {
                log.warn("ASN压测任务配置无效，跳过执行: orderCountPerRun={}, itemCountPerOrder={}, itemQty={}",
                        orderCountPerRun, itemCountPerOrder, itemQty);
                return;
            }

            List<Matnr> matnrs = loadMatnrs();
            if (matnrs.isEmpty()) {
                log.warn("ASN压测任务未获取到可用物料，跳过执行");
                return;
            }
            Collections.shuffle(matnrs);

            Date now = new Date();
            LocalDateTime nowTime = LocalDateTime.now();
            double totalQty = itemCountPerOrder * itemQty;

            List<WkOrder> orders = new ArrayList<>(orderCountPerRun);
            for (int i = 0; i < orderCountPerRun; i++) {
                orders.add(buildOrder(now, nowTime, totalQty, i));
            }
            if (!asnOrderService.saveBatch(orders, 200)) {
                throw new CoolException("ASN压测主单插入失败");
            }

            List<WkOrderItem> items = new ArrayList<>(orderCountPerRun * itemCountPerOrder);
            for (int orderIndex = 0; orderIndex < orders.size(); orderIndex++) {
                WkOrder order = orders.get(orderIndex);
                for (int itemIndex = 0; itemIndex < itemCountPerOrder; itemIndex++) {
                    Matnr matnr = matnrs.get((orderIndex * itemCountPerOrder + itemIndex) % matnrs.size());
                    items.add(buildOrderItem(order, matnr, now, orderIndex, itemIndex));
                }
            }
            if (!asnOrderItemService.saveBatch(items, 500)) {
                throw new CoolException("ASN压测明细插入失败");
            }

            log.info("ASN压测任务执行完成，本次插入主单 {} 条，明细 {} 条", orders.size(), items.size());
        } finally {
            running.set(false);
        }
    }

    private List<Matnr> loadMatnrs() {
        int needCount = Math.min(Math.max(orderCountPerRun * itemCountPerOrder, 200), 2000);
        return matnrService.list(new LambdaQueryWrapper<Matnr>()
                .eq(Matnr::getDeleted, 0)
                .eq(Matnr::getStatus, 1)
                .select(Matnr::getId, Matnr::getCode, Matnr::getName, Matnr::getFieldsIndex,
                        Matnr::getSpec, Matnr::getModel, Matnr::getUnit, Matnr::getPurUnit,
                        Matnr::getStockUnit, Matnr::getBaseUnit, Matnr::getUseOrgId,
                        Matnr::getUseOrgName, Matnr::getErpClsId)
                .orderByDesc(Matnr::getId)
                .last("limit " + needCount));
    }

    private WkOrder buildOrder(Date now, LocalDateTime nowTime, double totalQty, int sequence) {
        String suffix = String.format("%04d", sequence + 1);
        String code = "erp" + nowTime.format(ORDER_CODE_FORMATTER) + suffix;
        long serialNo = System.currentTimeMillis() * 1000 + sequence;

        return new WkOrder()
                .setCode(code)
                .setPoCode(code)
                .setPoId(serialNo)
                .setType(ORDER_TYPE)
                .setWkType(ORDER_WORK_TYPE)
                .setAnfme(totalQty)
                .setQty(totalQty)
                .setWorkQty(0.0)
                .setCheckType(0)
                .setRleStatus((short) 0)
                .setNtyStatus(0)
                .setExceStatus((short) 4)
                .setStatus(1)
                .setDeleted(0)
                .setTenantId(TENANT_ID)
                .setCreateBy(USER_ID)
                .setCreateTime(now)
                .setUpdateBy(USER_ID)
                .setUpdateTime(now)
                .setMemo(MEMO)
                .setReportOnce(4)
                .setBusinessTime(now)
                .setStationId("1215")
                .setOrderInternalCode(String.valueOf(serialNo))
                .setStockDirect("stockDirect")
                .setCustomerId("custom1")
                .setCustomerName("客户1")
                .setSupplierId("gongys1")
                .setSupplierName("供应商1")
                .setStockOrgId("stockYH")
                .setStockOrgName("浙江银湖箱包有限公司仓库")
                .setPurchaseOrgId("yhcaigou")
                .setPurchaseOrgName("浙江银湖箱包有限公司采购")
                .setPurchaseUserId("caigouyuan1")
                .setPurchaseUserName("采购员1")
                .setPrdOrgId("prdYH")
                .setPrdOrgName("浙江银湖箱包有限公司")
                .setSaleOrgId("sale1")
                .setSaleOrgName("生产组1")
                .setSaleUserId("shengchanyuan1")
                .setSaleUserName("生产员1")
                .setVersion(0);
    }

    private WkOrderItem buildOrderItem(WkOrder order, Matnr matnr, Date now, int orderIndex, int itemIndex) {
        String stockUnit = StringUtils.firstNonBlank(matnr.getStockUnit(), matnr.getPurUnit(), matnr.getUnit(), matnr.getBaseUnit());
        String purUnit = StringUtils.firstNonBlank(matnr.getPurUnit(), matnr.getUnit(), matnr.getStockUnit(), matnr.getBaseUnit());
        String baseUnit = StringUtils.firstNonBlank(matnr.getBaseUnit(), matnr.getUnit(), matnr.getStockUnit(), matnr.getPurUnit());
        String batchCode = "B" + new SimpleDateFormat("yyyyMMddHHmmss").format(now)
                + String.format("%02d%02d", orderIndex + 1, itemIndex + 1);
        String trackCode = "T" + System.currentTimeMillis() + String.format("%02d%02d", orderIndex + 1, itemIndex + 1);

        return new WkOrderItem()
                .setOrderId(order.getId())
                .setOrderCode(order.getCode())
                .setPlatItemId("M" + (itemIndex + 1))
                .setPoCode(order.getPoCode())
                .setFieldsIndex(matnr.getFieldsIndex())
                .setMatnrId(matnr.getId())
                .setMatnrCode(matnr.getCode())
                .setMaktx(matnr.getName())
                .setSpec(matnr.getSpec())
                .setModel(matnr.getModel())
                .setAnfme(itemQty)
                .setWorkQty(0.0)
                .setPurQty(itemQty)
                .setQty(itemQty)
                .setStockUnit(stockUnit)
                .setPurUnit(purUnit)
                .setBatch(batchCode)
                .setSplrBatch(batchCode)
                .setSplrCode("gongys1")
                .setSplrName("供应商1")
                .setTrackCode(trackCode)
                .setBarcode(trackCode)
                .setProdTime(new SimpleDateFormat("yyyy-MM-dd").format(now))
                .setNtyStatus(0)
                .setStatus(1)
                .setDeleted(0)
                .setTenantId(TENANT_ID)
                .setCreateBy(USER_ID)
                .setCreateTime(now)
                .setUpdateBy(USER_ID)
                .setUpdateTime(now)
                .setMemo(MEMO)
                .setBaseUnit(baseUnit)
                .setUseOrgId(matnr.getUseOrgId())
                .setUseOrgName(matnr.getUseOrgName())
                .setErpClsId(matnr.getErpClsId())
                .setPriceUnitId(baseUnit);
    }
}