dalan/price_checker
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Add erro handling

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Rémi BERTHO 2020-05-24 10:30:41 +02:00
parent bddd41dde8
commit 4bd5e1eb5e
Signed by: dalan
GPG key ID: EE3B917931C07B64
7 changed files with 56 additions and 40 deletions
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37
src/parser/darty.rs
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@ -2,6 +2,7 @@ use super::PriceParser;
use crate::PriceResult;
use scraper::{Selector, Html};
use url::Url;
use anyhow::{Result, anyhow};
#[derive(Debug)]
pub struct Darty {
@ -11,38 +12,38 @@ pub struct Darty {
}
impl PriceParser for Darty {
fn new() -> Self {
Darty {
fn new() -> Result<Self> {
Ok(Darty {
price_selector: Selector::parse(r#".darty_prix"#).unwrap(),
name_selector: Selector::parse(r#".product_name"#).unwrap(),
product_selector: Selector::parse(r#".product_family"#).unwrap()
}
})
}
fn can_parse(&self, url : &Url) -> bool {
url.host_str().unwrap() == "www.darty.com"
url.host_str().unwrap_or("") == "www.darty.com"
}
fn parse(&self, html : &Html) -> PriceResult {
fn parse(&self, html : &Html) -> Result<PriceResult> {
// Get price
let price_element = html.select(&self.price_selector).next().unwrap();
let price_element = html.select(&self.price_selector).next().ok_or(anyhow!("No price element"))?;
let mut price_text_it = price_element.text();
let price_ent : u32 = price_text_it.next().unwrap_or("0").trim_end_matches(',').parse().unwrap();
let price_dec : u32 = price_text_it.next().unwrap_or("0").trim_end_matches('€').parse().unwrap();
let price_ent : u32 = price_text_it.next().unwrap_or("0").trim_end_matches(',').parse()?;
let price_dec : u32 = price_text_it.next().unwrap_or("0").trim_end_matches('€').parse()?;
let price = price_ent as f64 + (price_dec as f64) / 100.;
// Get name
let name_element = html.select(&self.name_selector).next().unwrap();
let name = name_element.text().next().unwrap().trim().replace('\n', "-");
let name_element = html.select(&self.name_selector).next().ok_or(anyhow!("No name element"))?;
let name = name_element.text().next().unwrap_or("").trim().replace('\n', "-");
// Get product
let family_element = html.select(&self.product_selector).next().unwrap();
let family = family_element.text().next().unwrap().trim().replace('\n', "-");
let family_element = html.select(&self.product_selector).next().ok_or(anyhow!("No product element"))?;
let family = family_element.text().next().unwrap_or("").trim().replace('\n', "-");
PriceResult {
name: name.to_owned(),
product: family.to_owned(),
price
}
}
Ok(PriceResult {
name: name.to_owned(),
product: family.to_owned(),
price
})
}
}