package etl

import (
	"gullion/currency_convert_ssheets/extractionCleansing"
	"gullion/currency_convert_ssheets/models"
	"gullion/currency_convert_ssheets/timeSeriesDB"
	"sort"
)

func ExtractBkmDataFromFile(fileFormatReader extractionCleansing.FileFormatReader) {

	rawData := fileFormatReader.ReadFromFile()

	bkmRecords := extractionCleansing.ParseToBkmRecordStruct(rawData)
	_, _, Measurement := fileFormatReader.GetFileMetaData()

	sort.SliceStable(bkmRecords.BKMRecords, func(i, j int) bool {
		return bkmRecords.BKMRecords[i].Date.After(bkmRecords.BKMRecords[j].Date)
	})

	latestBKMRecord := timeSeriesDB.GetLatestBKMRecordByTimeStamp(Measurement)
	deltaBKMRecords := models.BKMRecords{}
	if !latestBKMRecord.Date.IsZero()  {
		for i, newRecord := range bkmRecords.BKMRecords {
			if newRecord.Date.Sub(latestBKMRecord.Date) == 0 {
				deltaBKMRecords.BKMRecords = bkmRecords.BKMRecords[:i]
				break
			}
		}
	} else {
		deltaBKMRecords.BKMRecords = bkmRecords.BKMRecords
	}


	timeSeriesDB.WriteBkmRecordsRecords(deltaBKMRecords, Measurement)

}