scraper/utils/utils.go

package utils

import (
	"math"
	"strconv"
	"strings"

	"github.com/rs/zerolog/log"
)

const (
	oneMillion       = 1000000
	oneThousand      = 1000
	maxBid           = ` max bid`
	priceWithhold    = "Price withheld"
	dollarString     = "$"
	percentCharacter = "%"
)

func ToMoney(priceString string) int {
	if strings.Contains(priceString, priceWithhold) {
		return -1
	}

	if !strings.HasPrefix(priceString, dollarString) {
		return 0
	}

	//remove $
	priceWithoutDollar := strings.TrimPrefix(priceString, dollarString)

	// remove max bid
	priceWithoutBid := strings.TrimSuffix(priceWithoutDollar, maxBid)

	var purePriceString string
	if strings.HasSuffix(priceWithoutBid, "m") || strings.HasSuffix(priceWithoutBid, "k") {
		purePriceString = priceWithoutBid[:len(priceWithoutBid)-1]
	} else {
		purePriceString = strings.ReplaceAll(priceWithoutBid, ",", "")
	}

	floatPrice, err := strconv.ParseFloat(purePriceString, 10)

	if err != nil {
		log.Error().Msgf("cannot convert string to price data due to %v", err)
		return 0
	}

	if strings.HasSuffix(priceWithoutBid, "m") {
		return int(math.Round(floatPrice * oneMillion))
	}

	if strings.HasSuffix(priceWithoutBid, "k") {
		return int(math.Round(floatPrice * oneThousand))
	}

	return int(floatPrice)
}

func ToBeds(bedsString string) int {
	if strings.HasSuffix(bedsString, "beds") {
		beds, err := strconv.Atoi(bedsString[:len(bedsString)-5])
		if err != nil {
			return 0
		}
		return beds
	}

	if strings.HasSuffix(bedsString, "bed") {
		return 1
	}
	return 0
}

func PercentStringToFloat(percent string) float64 {

	percentWithoutPercent := strings.TrimSuffix(percent, percentCharacter)

	percentFloat, err := strconv.ParseFloat(percentWithoutPercent, 10)

	if err != nil {
		log.Error().Msgf("cannot cask %s to float with error %v", percent, err)
		return 0
	}

	return percentFloat
}