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package main
import (
"regexp"
"strings"
"github.com/PuerkitoBio/goquery"
"github.com/gocolly/colly"
)
func (app *App) ScrapeWhic(shop Shop) []Angebot {
Shop_url := "https://whic.de/angebote"
Whiskys := []Angebot{}
c := app.customCollector([]string{"whic.de"})
c.OnHTML("li.item", func(e *colly.HTMLElement) {
if e.Request.URL.String() != Shop_url {
return
}
W := Angebot{}
W.Shop = shop.Id
W.Spirit_type = "Whisky"
whisky_name := e.ChildAttr("a", "title")
whisky_url := e.ChildAttr("a", "href")
W.Name = whisky_name
W.Url = whisky_url
var err error
e.ForEach(".price-box", func(i int, e *colly.HTMLElement) {
e.ForEach(".old-price", func(i int, e *colly.HTMLElement) {
W.Original_price, err = convert_price(e.ChildText(".price"))
if err != nil {
W.error_msg = err.Error()
W.error_ctx = e.ChildText(".price")
W.Println("Whic: Converting original price failed")
return
}
})
e.ForEach(".special-price", func(i int, e *colly.HTMLElement) {
W.Discounted_price, err = convert_price(e.ChildText(".price"))
if err != nil {
W.error_msg = err.Error()
W.error_ctx = e.ChildText(".price")
W.Println("Whic: Converting discounted price failed")
return
}
})
})
base_price_noisy := e.ChildText(".base-price")
W.Base_price, err = sanitize_base_price(base_price_noisy)
if err != nil {
W.error_msg = err.Error()
W.error_ctx = base_price_noisy
W.Println("Whic: Sanitizing base price failed")
return
}
/*
* colly does not parse a <noscript>, thus we are reading the content and parse it as html.
*/
img_link_noisy := e.ChildText(".product-image")
doc, err := goquery.NewDocumentFromReader(strings.NewReader(img_link_noisy))
if err != nil {
W.error_msg = err.Error()
W.error_ctx = img_link_noisy
W.Println("Whic: Parsing document in Goquery failed")
return
}
W.Image_url, _ = doc.Find("img").Attr("src")
e.Request.Visit(W.Url)
var ctx string
W.Volume, ctx = get_volume(e)
if W.Volume == 0 {
W.error_msg = "Whic: Volume is zero"
W.error_ctx = ctx
W.Println("Whic: Volume is zero")
return
}
W.Abv, ctx = get_abv(e)
if W.Abv == 0 {
W.error_msg = "Whic: Abv is zero"
W.error_ctx = ctx
W.Println("Whic: Abv is zero")
return
}
W.Website = e.Request.Ctx.Get("website")
Whiskys = append(Whiskys, W)
})
c.OnHTML("#product-view-head-txt-extra-info", func(e *colly.HTMLElement) {
text_noisy := e.Text
r_volume, err := regexp.Compile("Volumen: ([0-9]+([.,][0-9]+)) Liter")
if err != nil {
Fatal(err, "Whic: Volumen regex failed")
}
volume := r_volume.FindStringSubmatch(text_noisy)
if volume == nil || len(volume) < 2 {
return
}
e.Request.Ctx.Put("volume", volume[1]+"l")
r_abv, err := regexp.Compile("Alkoholgehalt: ([0-9]+([.,][0-9]+))%")
if err != nil {
Fatal(err, "Whic: Abv regex failed")
}
abv := r_abv.FindStringSubmatch(text_noisy)
if abv == nil || len(abv) < 2 {
return
}
e.Request.Ctx.Put("abv", abv[1]+"%")
e.Request.Ctx.Put("website", string(e.Response.Body))
})
err := c.Visit(Shop_url)
if err != nil {
shop.error_msg = err.Error()
shop.error_ctx = Shop_url
shop.Warn("Crawling failed")
}
return Whiskys
}
|
