mandarake parser rework

internal/parsers/mandarake/service.go

@@ -0,0 +1,90 @@
+package mandarake
+
+import (
+	"context"
+	"github.com/chromedp/chromedp"
+	log "github.com/sirupsen/logrus"
+	"regexp"
+	"slices"
+	"strconv"
+	"strings"
+	"task-processor/internal/shared"
+)
+
+func (s *Parser) getPrice(ctx context.Context, task shared.Task) (int32, error) {
+	var (
+		singlePrice string
+		rangedPrice string
+		prices      []int32
+	)
+
+	//get single price
+	if err := chromedp.Run(ctx,
+		chromedp.Navigate(task.Link),
+		chromedp.WaitReady("body"),
+		chromedp.WaitVisible(`div.price`, chromedp.ByQuery),
+		chromedp.Text(`div.price`, &singlePrice, chromedp.ByQuery),
+	); err != nil {
+		log.WithError(err).Error(logHeader + logGetPrice + "failed to get single price tag")
+		return zeroPrice, err
+	}
+	singlePrice = strings.TrimSpace(singlePrice)
+	prices = append(prices, s.getSinglePriceWithTax(singlePrice))
+
+	//get price range
+	if err := chromedp.Run(ctx,
+		chromedp.Navigate(task.Link),
+		chromedp.WaitReady("body"),
+		chromedp.WaitVisible(`price_range`, chromedp.ByQuery),
+		chromedp.Text(`price_range`, &rangedPrice, chromedp.ByQuery),
+	); err != nil {
+		log.WithError(err).Warn(logHeader + logGetPrice + "failed to get ranged price tag")
+	}
+
+	rangedPrice = strings.TrimSpace(rangedPrice)
+
+	if rangedPrice != "" {
+		prices = append(prices, s.getMinimalPriceFromRangeWithTax(rangedPrice))
+	}
+
+	//get minimal price
+	minimal := slices.Min(prices)
+	log.Infof(logHeader+"uuid: %s, price: %d", task.MerchUuid, minimal)
+
+	return minimal, nil
+}
+
+func (s *Parser) getSinglePriceWithTax(rawPrice string) int32 {
+	re := regexp.MustCompile(`(\d+)\s*円`)
+	matches := re.FindStringSubmatch(rawPrice)
+	if len(matches) < 2 {
+		log.Error("Mandarake | Single price not found, returning zero price")
+		return zeroPrice
+	}
+
+	priceStr := matches[1]
+	price, err := strconv.Atoi(priceStr)
+	if err != nil {
+		log.Error("Mandarake | Failed to convert single price, returning zero price")
+		return zeroPrice
+	}
+	return int32(price)
+}
+
+func (s *Parser) getMinimalPriceFromRangeWithTax(priceRange string) int32 {
+	re := regexp.MustCompile(`他([\d,]+)円`)
+	matches := re.FindStringSubmatch(priceRange)
+	if len(matches) < 2 {
+		log.Error("Price not found in range, returning zero price")
+		return zeroPrice
+	}
+
+	priceStr := strings.ReplaceAll(matches[1], ",", "")
+	price, err := strconv.Atoi(priceStr)
+	if err != nil {
+		log.Error("Failed to convert minimal price in range, returning zero price")
+		return zeroPrice
+	}
+
+	return int32(float64(price) * taxMultiplier)
+}