package model

import (
	"math"
	"time"

	pasturePb "gitee.com/xuyiping_admin/go_proto/proto/go/backend/cow"
)

type EventWeight struct {
	ID            int64  `json:"id"`
	PastureId     int64  `json:"pastureId"`
	CowId         int64  `json:"cowId"`
	EarNumber     string `json:"earNumber"`
	DayAge        int32  `json:"dayAge"`
	LactationDay  int64  `json:"lactationDay"`
	PenId         int32  `json:"penId"`
	Lact          int32  `json:"lact"`
	Weight        int32  `json:"weight"`
	Height        int32  `json:"height"`
	WeightAt      int64  `json:"weightAt"`
	Remarks       string `json:"remarks"`
	OperationId   int32  `json:"operationId"`
	OperationName string `json:"operationName"`
	MessageId     int64  `json:"messageId"`
	MessageName   string `json:"messageName"`
	CreatedAt     int64  `json:"created_at"`
	UpdatedAt     int64  `json:"updated_at"`
}

func (c *EventWeight) TableName() string {
	return "event_weight"
}

func NewEventWeight(pastureId int64, cow *Cow, currentUser *SystemUser, item *pasturePb.EventWeight) *EventWeight {
	return &EventWeight{
		PastureId:     pastureId,
		CowId:         cow.Id,
		EarNumber:     cow.EarNumber,
		Weight:        int32(item.Weight * 1000),
		Height:        item.Height,
		Lact:          cow.Lact,
		DayAge:        cow.GetDayAge(),
		WeightAt:      int64(item.WeightAt),
		Remarks:       item.Remarks,
		MessageId:     currentUser.Id,
		MessageName:   currentUser.Name,
		OperationId:   item.OperationId,
		OperationName: item.OperationName,
	}
}

type EventWeightSlice []*EventWeight

func (e EventWeightSlice) ToPB(cowInfo *Cow, eventCowLogList []*EventCowLog) *pasturePb.CowGrowthCurveData {
	res := &pasturePb.CowGrowthCurveData{
		Chart: &pasturePb.CowBehaviorCurveChart{
			Headers:   make([]string, 0),
			Weight:    make([]float32, 0),
			EventList: make([]*pasturePb.EventHappen, 0),
		},
		Table: make([]*pasturePb.CowBehaviorCurveTable, len(e)),
	}

	for i, v := range e {
		weightAtFormat := ""
		if v.WeightAt > 0 {
			weightAtFormat = time.Unix(v.WeightAt, 0).Local().Format(LayoutDate2)
		}
		weight := float32(0)
		if v.Weight > 0 {
			weight = float32(v.Weight) / 1000
		}

		avgWeight := float32(0)
		if i > 0 {
			avgWeight = float32(v.Weight-e[i-1].Weight) / float32(v.WeightAt-e[i-1].WeightAt) / 24 / 1000
		}

		// 阶段日增重
		stageDayAddWeight, monthAvgAddWeight := float32(0), float32(0)
		if i > 0 {
			stageWeight := float64(v.Weight-e[i-1].Weight) / 1000
			t1 := time.Unix(v.WeightAt, 0).Local().Truncate(24 * time.Hour)
			t2 := time.Unix(e[i-1].WeightAt, 0).Local().Truncate(24 * time.Hour)
			diff := t1.Sub(t2)
			days := int32(diff.Hours() / 24)
			stageDayAddWeight = float32(math.Round(stageWeight/float64(days)*100) / 100)
		}

		if stageDayAddWeight > 0 {
			monthAvgAddWeight = stageDayAddWeight * 30
		}
		res.Table[i] = &pasturePb.CowBehaviorCurveTable{
			Weight:            weight,
			AvgWeight:         avgWeight,
			StageDayAddWeight: stageDayAddWeight,
			MonthAvgAddWeight: monthAvgAddWeight,
			WeightAtFormat:    weightAtFormat,
			AdmissionAge:      cowInfo.AdmissionAge,
		}
		res.Chart.Headers = append(res.Chart.Headers, weightAtFormat)
		res.Chart.Weight = append(res.Chart.Weight, weight)
	}

	for _, event := range eventCowLogList {
		dateTime := ""
		if event.EventAt > 0 {
			dateTime = time.Unix(event.EventAt, 0).Local().Format(LayoutDate2)
		}
		res.Chart.EventList = append(res.Chart.EventList, &pasturePb.EventHappen{
			Name:          event.EventTypeName,
			DateTime:      dateTime,
			EventTypeKind: event.EventType,
		})
	}

	return res
}