64 lines
2.2 KiB
Rust
64 lines
2.2 KiB
Rust
use super::{Parser, PriceParser};
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use crate::PriceResult;
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use scraper::{Selector, Html};
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use url::Url;
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use anyhow::{Result, anyhow};
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#[derive(Debug)]
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/// Parser for the darty website
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pub struct Darty {
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price_selector: Selector,
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name_selector: Selector,
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product_selector: Selector
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}
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impl Parser for Darty {
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fn new() -> Result<Self> {
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Ok(Darty {
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price_selector: Selector::parse(r#".darty_prix"#).unwrap(),
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name_selector: Selector::parse(r#".product_name"#).unwrap(),
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product_selector: Selector::parse(r#".product_family"#).unwrap()
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})
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}
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fn name(&self) -> &'static str {
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"Darty"
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}
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}
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impl PriceParser for Darty {
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fn can_parse(&self, url : &Url) -> bool {
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url.host_str().unwrap_or("") == "www.darty.com"
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}
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fn parse_price(&self, html : &Html) -> Result<PriceResult> {
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// Get price
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let price_element = html.select(&self.price_selector).next().ok_or(anyhow!("No price element"))?;
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let mut price_text_it = price_element.text();
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let price_ent : u32 = price_text_it.next().unwrap_or("0").trim_end_matches(',').parse()?;
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let price_dec : u32 = price_text_it.next().unwrap_or("0").trim_end_matches('€').parse()?;
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let price = price_ent as f64 + (price_dec as f64) / 100.;
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// Get name
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let name_element = html.select(&self.name_selector).next().ok_or(anyhow!("No name element"))?;
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let name = name_element.text().next().unwrap_or("").trim().replace('\n', "-");
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// Get product
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let family_element = html.select(&self.product_selector).next().ok_or(anyhow!("No product element"))?;
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let family = family_element.text().next().unwrap_or("").trim().replace('\n', "-");
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Ok(PriceResult {
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name: name.to_owned(),
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product: family.to_owned(),
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price
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})
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}
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}
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#[test]
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fn test_parser_darty() {
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let darty_parser = Darty::new().unwrap();
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assert!(darty_parser.can_parse(&Url::parse("https://www.darty.com/nav/achat/gros_electromenager/refrigerateur-congelateur-refrigerateur-cong/refrigerateur-congelateur_bas/samsung_rb33n300nsa_ef.html").unwrap()));
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assert!(darty_parser.can_parse(&Url::parse("http://www.darty.com/nav/achat/gros_electromenager/refrigerateur-congelateur-refrigerateur-cong/refrigerateur-congelateur_bas/samsung_rb33n300nsa_ef.html").unwrap()));
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assert!(darty_parser.can_parse(&Url::parse("https://www.fnace.com").unwrap()) == false);
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} |