package data_manage

import (
	sql2 "database/sql"
	"eta/eta_task/global"
	"eta/eta_task/utils"
	"gorm.io/gorm"
	"time"
)

// ComTradeData 联合国商品贸易数据表
type ComTradeData struct {
	ComTradeDataId     int       `gorm:"column:com_trade_data_id;primaryKey;autoIncrement"`
	ComTradeId         int       `description:"指标id"`
	IndexCode          string    `description:"联合国商品贸易编码"`
	Flow               string    `description:"贸易流向：X（Export：出口）；M（Import：进口）"`
	ReporterCode       int       `description:"出口国id"`
	ReporterName       string    `description:"出口国名称"`
	PartnerCode        int       `description:"进口国id"`
	PartnerName        string    `description:"进口国名称"`
	Partner2Code       int       `description:"第二进口国id"`
	Partner2Name       string    `description:"第二进口国名称"`
	DateType           int       `description:"日期类型，1：年度，2：月度"`
	DataTime           string    `description:"数据日期"`
	IndexTradeCode     string    `description:"离岸价编码"`
	TradeValue         float64   `description:"离岸价（美元）"`
	IndexNetWeightCode string    `description:"净重编码"`
	NetWeightValue     float64   `description:"净重/公斤"`
	ModifyTime         time.Time `description:"最新更新时间"`
	CreateTime         time.Time `description:"创建时间"`
}

func (m *ComTradeData) AfterFind(db *gorm.DB) (err error) {
	m.DataTime = utils.GormDateStrToDateStr(m.DataTime)
	return
}

// GetAllComTradeDataList 获取联合国商品贸易数据列表
func GetAllComTradeDataList(startDate string) (list []*ComTradeData, err error) {
	o := global.DbMap[utils.DbNameIndex]
	sql := `SELECT * FROM com_trade_data WHERE create_time>=?  ORDER BY com_trade_data_id ASC `
	err = o.Raw(sql, startDate).Find(&list).Error
	return
}

// AddBaseFromComTradeData 添加数据
func AddBaseFromComTradeData(item *ComTradeData) (lastId int64, err error) {
	err = global.DbMap[utils.DbNameIndex].Create(item).Error
	if err != nil {
		return
	}
	lastId = int64(item.ComTradeDataId)
	return
}

// MultiAddBaseFromComTradeData 批量添加数据
func MultiAddBaseFromComTradeData(items []*ComTradeData) (lastId int64, err error) {
	num := len(items)
	if num <= 0 {
		return
	}
	o := global.DbMap[utils.DbNameIndex]
	err = o.CreateInBatches(items, utils.MultiAddNum).Error
	return
}

// GetBaseFromComTradeMaxDate 获取un数据中的最大日期数据
func GetBaseFromComTradeMaxDate() (maxDate time.Time, err error) {
	o := global.DbMap[utils.DbNameIndex]
	sql := ` SELECT max(a.create_time) as max_date FROM com_trade_data as a `
	var timeNull sql2.NullTime
	err = o.Raw(sql).Scan(&timeNull).Error
	if err != nil {
		return
	}
	if timeNull.Valid {
		maxDate = timeNull.Time
	}
	return
}