package extrapolation

import (
	"fmt"
	"gullion/currency_convert_ssheets/models"
	"gullion/currency_convert_ssheets/timeSeriesDB"
	"gullion/currency_convert_ssheets/utility"
	"time"
)

func ExtrapolateXauToTLForexRates() {

	usdToTlDatalist := timeSeriesDB.ReadExchangeRecords("USDTL",
		utility.GetTimeFromString("01 Jan 2011"), utility.GetTimeFromString("02 Jan 2015"))
	xauToUsdDatalist := timeSeriesDB.ReadExchangeRecords("XAUUSD",
		utility.GetTimeFromString("01 Dec 2010"), utility.GetTimeFromString("01 Jan 2015"))
	hashMapXauToUSD := make(map[time.Time]models.ExchangeRecord)
	var xauToTl []models.ExchangeRecord

	for _, recordXauToUSD := range xauToUsdDatalist {
		hashMapXauToUSD[recordXauToUSD.Date] = recordXauToUSD
	}

	for _, usdTlRecord := range usdToTlDatalist {
		day := usdTlRecord.Date
		for {

			if _, ok := hashMapXauToUSD[day]; ok {
				break
			}
			day = day.AddDate(0, 0, -1)
		}

		newRecord := hashMapXauToUSD[day]
		newRecord.Date = usdTlRecord.Date
		newRecord.ToCurrency = usdTlRecord.ToCurrency * newRecord.ToCurrency
		newRecord.Tag = "XAUTL"

		xauToTl = append(xauToTl, newRecord)
	}

	exchangeModel := models.ExchangeRecords{ExchangeRecords: xauToTl}
	//timeSeriesDB.WriteExchangeRecords(exchangeModel)
	fmt.Println(exchangeModel)

}