package service

import (
	"errors"
	"fmt"
	"github.com/go-xorm/xorm"
	"leit.com/leit_seat_aps/common"
	"leit.com/leit_seat_aps/db"
	"time"
)

// 定义发运车
type BL_Shipcar struct {
	ShipTmplId string
	Paktypdict map[string]db.Jit_shiptemplate_itemlst
	Shipcartab db.Jit_shiptemplate
}

// 定义发运车订单
type BL_ShipcarOrder struct {
	Shiporderid  string
	ShipTmplId   string
	Workloaddict map[string]BL_ShipcarWorkload
	Spordtab     db.Jit_shiporder
}

// 发运车装载负荷情况
type BL_ShipcarWorkload struct {
	Packtypeid string // 包装类型
	Maxqty     int    // 该包装类型最多可装载量
	Planqty    int    // 计划装载量
	Fillqty    int    // 实际已装载
}

// 检查包装单是否适配当前发运车，将包装单对应的包装类型的最大数量和实际数量进行比对
func (bl_sco *BL_ShipcarOrder) CanFillPackOrder(pkotab db.Jit_packorder) (can bool) {
	var (
		bl_scwl BL_ShipcarWorkload
		i       int
		ok      bool
	)

	// 对于未适配模板的发运单（未计划）则基于可适配最大数进行匹配
	// 对于适配模板的发运单（已计划）则基于指定包装项的计划数和已填充数来进行匹配
	if bl_sco.Spordtab.Status < common.SPO_STATUS_PLANNED {
		// 获取发运单对应包装类型的负载对象
		if bl_scwl, ok = bl_sco.Workloaddict[pkotab.Packtypeid]; !ok {
			can = false
			return
		}
		// 将负载对象的可填充数与最大可填充数进行比较，如果到达最大可填充数，则不再可填充
		if bl_scwl.Fillqty >= bl_scwl.Maxqty {
			can = false
		} else {
			can = true
		}
	} else {
		can = false
		for i = 0; i < len(bl_sco.Spordtab.Itemlst); i++ {
			if bl_sco.Spordtab.Itemlst[i].Packtypeid == pkotab.Packtypeid {
				if bl_sco.Spordtab.Itemlst[i].Shortship > 0 {
					if bl_sco.Spordtab.Itemlst[i].Fillqty < bl_sco.Spordtab.Itemlst[i].Shortshipqty && bl_sco.Spordtab.Itemlst[i].Status < common.SPO_STATUS_RELEASED {
						can = true
						break
					}
				} else {
					if bl_sco.Spordtab.Itemlst[i].Fillqty < bl_sco.Spordtab.Itemlst[i].Planqty && bl_sco.Spordtab.Itemlst[i].Status < common.SPO_STATUS_RELEASED {
						can = true
						break
					}
				}
			} else {
				continue
			}
		}
	}

	return
}

// 将包装订单插入到当前发运车
func (bl_sco *BL_ShipcarOrder) AddPackOrder(session *xorm.Session, pkotab db.Jit_packorder) (err error) {
	var (
		spoitemtab_match, spoitemtab db.Jit_shiporder_itemlst
		spodatatab db.Jit_shiporder_datalst
		i          int
		found      bool
	)

	// 获取发运车数据
	if err = bl_sco.GetOrderDataBySession(session); err != nil {
		return
	}

	// 找到发运车对应的发运子项
	found = false
	for i = 0; i < len(bl_sco.Spordtab.Itemlst); i++ {
		if pkotab.Packtypeid == bl_sco.Spordtab.Itemlst[i].Packtypeid {
			found = true
			break
		}
	}
	if !found {
		err = errors.New(fmt.Sprintf("The packorder %s packtype not match shipcar order %s",
			pkotab.Packorderid, pkotab.Packtypeid, bl_sco.Shiporderid))
		return
	} else {
		spoitemtab_match = bl_sco.Spordtab.Itemlst[i]
	}

	// 更新包装的装载状态
	pkotab.Loadstatus 	= common.PKO_STATUS_LOADED
	pkotab.Lastmodif 	= common.Date(time.Now().Unix(), "YYYYMMDDHHmmss")
	if err = pkotab.UpdateFields(session, "loadstatus, lastmodif"); err != nil {
		return
	}

	// 插入包装行数据
	spodatatab 				= db.Jit_shiporder_datalst{}
	spodatatab.Finr 		= db.G_FINR
	spodatatab.Shiporderid 	= bl_sco.Spordtab.Shiporderid
	spodatatab.Packtypeid 	= pkotab.Packtypeid
	spodatatab.Packorderid 	= pkotab.Packorderid
	spodatatab.Planqty 		= 1
	spodatatab.Actqty 		= 0
	spodatatab.Status 		= common.SPO_STATUS_RELEASED
	spodatatab.Lastuser 	= "service"
	spodatatab.Credatuz 	= common.Date(time.Now().Unix(), "YYYYMMDDHHmmss")
	if err = spodatatab.Insert(session); err != nil {
		return
	}

	// 更新包装子项的实际已装运数 Fillqty
	if spoitemtab, err = spoitemtab_match.SelectOneBySession(session); err != nil {
		return
	}

	spoitemtab.Fillqty = len(spoitemtab.Itemlst)

	// 对于未计划的发运单不更新发运单项的状态
	if bl_sco.Spordtab.Status > common.SPO_STATUS_UNPLANNED {
		if spoitemtab.Shortship > 0 && spoitemtab.Fillqty >= spoitemtab.Shortshipqty {
			spoitemtab.Status = common.Max(spoitemtab.Status, common.SPO_STATUS_RELEASED)
		}
		if spoitemtab.Shortship <= 0 && spoitemtab.Fillqty >= spoitemtab.Planqty {
			spoitemtab.Status = common.Max(spoitemtab.Status, common.SPO_STATUS_RELEASED)
		}
	}

	spoitemtab.Lastmodif = common.Date(time.Now().Unix(), "YYYYMMDDHHmmss")
	if err = spoitemtab.UpdateFields(session, "fillqty, status, lastmodif"); err != nil {
		return
	}

	return
}

// 获取发运单数据
func (bl_sco *BL_ShipcarOrder) GetOrderDataBySession(session *xorm.Session) (err error) {
	bl_sco.Spordtab.Shiporderid = bl_sco.Shiporderid
	if bl_sco.Spordtab, err = bl_sco.Spordtab.SelectOneBySession(session); err != nil {
		return
	}
	return
}