1 files changed, 103 insertions, 0 deletions
diff --git a/crawler/convert_price.go b/crawler/convert_price.go
new file mode 100644
index 0000000..54386d6
--- /dev/null
+++ b/crawler/convert_price.go
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"errors"
+	"strconv"
+	"strings"
+)
+
+func convert_price(price string) (int, error) {
+	if "" == price {
+		return 0, errors.New("Empty string")
+	}
+
+	multiply_by_10 := false
+	multiply_by_100 := true
+
+	price = strings.TrimSpace(price)
+
+	price = strings.TrimPrefix(price, "€")
+	price = strings.TrimSpace(price)
+
+	price = strings.TrimSuffix(price, "€")
+	price = strings.TrimSpace(price)
+
+	price = strings.TrimSuffix(strings.ToLower(price), "eur")
+	price = strings.TrimSpace(price)
+
+	price = strings.TrimSuffix(strings.ToLower(price), "euro")
+	price = strings.TrimSpace(price)
+
+	if len(price) < 2 {
+		price = "0" + price
+	} else if len(price) < 3 {
+		price = "00" + price
+	}
+
+	c := string(price[len(price)-2:])
+	c = string(c[0:1])
+
+	/*
+		Extracts the second last char and checks if it's a "." or a ",".
+	*/
+	if "," == c {
+		if strings.Count(price, ",") > 1 {
+			return 0, errors.New("Invalid format")
+		}
+
+		multiply_by_10 = true
+		multiply_by_100 = false
+
+	} else if "." == c {
+		if strings.Count(price, ".") > 1 {
+			return 0, errors.New("Invalid format")
+		}
+
+		multiply_by_10 = true
+		multiply_by_100 = false
+
+	}
+
+	c = string(price[len(price)-3:])
+	c = string(c[0:1])
+
+	/*
+		Extracts the third last char and checks if it's a "." or a ",".
+	*/
+	if "," == c {
+		if strings.Count(price, ",") > 1 {
+			return 0, errors.New("Invalid format")
+		}
+
+		multiply_by_10 = false
+		multiply_by_100 = false
+
+	} else if "." == c {
+		if strings.Count(price, ".") > 1 {
+			return 0, errors.New("Invalid format")
+		}
+
+		multiply_by_10 = false
+		multiply_by_100 = false
+
+	}
+
+	price = strings.Replace(price, ",", "", -1)
+	price = strings.Replace(price, ".", "", -1)
+
+	/*
+		Casts the price to integer in cents (not euro!).
+	*/
+	price_int, err := strconv.Atoi(price)
+	if err != nil {
+		return 0, err
+	}
+
+	if multiply_by_10 {
+		price_int = price_int * 10
+	} else if multiply_by_100 {
+		price_int = price_int * 100
+	}
+
+	return price_int, nil
+}