package controller

import (
	"fmt"

	"git.rosy.net.cn/baseapi/utils"
	"git.rosy.net.cn/jx-callback/business/model"
	"git.rosy.net.cn/jx-callback/globals"
	"github.com/astaxie/beego/orm"
)

const (
	WaybillStatusUnknown = 0

	WaybillStatusNew            = 5
	WaybillStatusAcceptCanceled = 8
	WaybillStatusAccepted       = 10
	WaybillStatusCourierArrived = 15 // 此状态是可选的，明确写出来是因为还是较重要的状态，但业务逻辑不应依赖此状态
	WaybillStatusDelivering     = 20

	WaybillStatusDelivered = 105
	WaybillStatusCanceled  = 115
	WaybillStatusFailed    = 120
)

type DeliveryProvider interface {
}

type WaybillController struct {
	WaybillMap        SyncMapWithTimeout
	deliveryProviders map[int]DeliveryProvider
}

func NewWaybillManager() *WaybillController {
	return &WaybillController{
		deliveryProviders: make(map[int]DeliveryProvider),
	}
}

func (w *WaybillController) RegisterDeliveryProvider(vendorID int, handler DeliveryProvider) {
	if !(vendorID >= VendorIDDeliveryBegin && vendorID <= VendorIDDeliveryEnd ||
		vendorID >= VendorIDPurchaseBegin && vendorID <= VendorIDPurchaseEnd) {
		panic(fmt.Sprintf("delivery provider vendor:%d is illegal", vendorID))
	}
	if _, ok := w.deliveryProviders[vendorID]; ok {
		panic(fmt.Sprintf("delivery provider vendor:%d, already exists", vendorID))
	}
	w.deliveryProviders[vendorID] = handler
}

func (w *WaybillController) onWaybillNew(bill *model.Waybill) (err error) {
	db := orm.NewOrm()
	bill.Status = WaybillStatusNew
	isDuplicated, err := addOrderOrWaybillStatus(w.waybill2Status(bill), db)
	if !isDuplicated {
		bill.Status = WaybillStatusNew
		bill.WaybillFinishedAt = DefaultTimeValue
		bill.ID = 0
		created, _, err := db.ReadOrCreate(bill, "VendorWaybillID", "WaybillVendorID")
		if err == nil {
			w.WaybillMap.Store(ComposeUniversalOrderID(bill.VendorWaybillID, bill.WaybillVendorID), bill.ID)
			if !created {
				bill.DuplicatedCount++
				db.Update(bill, "DuplicatedCount")
				globals.SugarLogger.Infof("duplicated bill:%v vendorID:%d, msg received", bill.VendorWaybillID, bill.WaybillVendorID)
			}
			err = OrderManager.OnWaybillStatusChanged(bill, db)
		} else {
			globals.SugarLogger.Warnf("create bill:%v, error:%v", bill, err)
		}
	}
	return err
}

func (w *WaybillController) OnWaybillStatusChanged(bill *model.Waybill) (err error) {
	if bill.Status == WaybillStatusNew {
		err = w.onWaybillNew(bill)
	} else if bill.Status == WaybillStatusAccepted {
		err = w.onWaybillAccepted(bill)
	} else {
		db := orm.NewOrm()
		isDuplicated, err2 := w.addWaybillStatus(bill, db)
		if err2 == nil && !isDuplicated {
			err2 = OrderManager.OnWaybillStatusChanged(bill, db)
		}
		err = err2
	}
	return err
}

func (w *WaybillController) onWaybillAccepted(bill *model.Waybill) (err error) {
	db := orm.NewOrm()
	bill.Status = WaybillStatusAccepted
	isDuplicated, err := w.addWaybillStatus(bill, db)
	if !isDuplicated {
		err = w.updateWaybillPKID(bill, db)
		if err == nil {
			utils.CallFuncLogError(func() error {
				_, err = db.Update(bill, "CourierName", "CourierMobile")
				return err
			}, "update waybill info")
			if err == nil {
				err = OrderManager.OnWaybillStatusChanged(bill, db)
			}
		}
	}
	return err
}

func (w *WaybillController) addWaybillStatus(bill *model.Waybill, db orm.Ormer) (isDuplicated bool, err error) {
	if db == nil {
		db = orm.NewOrm()
	}
	waybillStatus := w.waybill2Status(bill)
	isDuplicated, err = addOrderOrWaybillStatus(waybillStatus, db)
	if !isDuplicated && waybillStatus.Status > WaybillStatusUnknown {
		if err = w.updateWaybillPKID(bill, db); err == nil {
			bill.Status = waybillStatus.Status
			bill.VendorStatus = waybillStatus.VendorStatus
			utils.CallFuncLogError(func() error {
				columns := []string{"Status", "VendorStatus"}
				if waybillStatus.Status >= OrderStatusDelivered {
					bill.WaybillFinishedAt = waybillStatus.StatusTime
					columns = append(columns, "WaybillFinishedAt")
				}
				_, err := db.Update(bill, columns...)
				return err
			}, "update waybill")
		}
	}
	return isDuplicated, err
}

func (w *WaybillController) waybill2Status(bill *model.Waybill) (retVal *model.OrderStatus) {
	retVal = &model.OrderStatus{
		VendorOrderID: bill.VendorWaybillID,
		VendorID:      bill.WaybillVendorID,
		OrderType:     OrderTypeWaybill,
		Status:        bill.Status,
		VendorStatus:  bill.VendorStatus,
		StatusTime:    bill.WaybillCreatedAt,
	}
	return retVal
}

func (w *WaybillController) updateWaybillPKID(bill *model.Waybill, db orm.Ormer) (err error) {
	value, ok := w.WaybillMap.Load(ComposeUniversalOrderID(bill.VendorWaybillID, bill.WaybillVendorID))
	if !ok {
		err = db.Read(bill, "VendorWaybillID", "WaybillVendorID")
		// todo 这里应该要报警，但测试阶段先去掉
		// utils.CallFuncLogError(func() error {
		// 	err = db.Read(bill, "VendorWaybillID", "WaybillVendorID")
		// 	return err
		// }, "can not get waybill info from db")
	} else {
		bill.ID = value.(int64)
	}
	return err
}