Add list command

src/main.rs

@@ -30,6 +30,8 @@ fn main() -> Result<()> {
 												.required(true)
 												.multiple(true)
 											.help("The name of the object")))
+							.subcommand(SubCommand::with_name("list")
+									.about("List the parsers"))
 						  .get_matches();
 	let price_checker = PriceChecker::new().unwrap();
 	match matches.subcommand() {
@@ -54,6 +56,16 @@ fn main() -> Result<()> {
 				}
 			}
 		},
+		("list", _) => {
+			println!("Price parsers:");
+			for parser in price_checker.parser_list.get_price().iter() {
+				println!(" - {}", parser.name());
+			}
+			println!("Search parsers:");
+			for parser in price_checker.parser_list.get_search().iter() {
+				println!(" - {}", parser.name());
+			}
+		},
 		_                       => {
 			println!("{}", matches.usage());
 		},

src/parser/amazon.rs

@@ -64,12 +64,15 @@ impl SearchParser for Amazon {
 	}
 
 	fn search(&self, html : &Html) -> Result<Option<Url>> {
-		let search_element_1 = html.select(&self.search_selector_1).next().ok_or(anyhow!("No search element 1"))?;
-		let search_element_2 = search_element_1.select(&self.search_selector_2).next().ok_or(anyhow!("No search element 2"))?;
-		let path_url = search_element_2.value().attr("href").ok_or(anyhow!("No link element"))?;
-		let mut url = Url::parse("https://www.amazon.fr").unwrap();
-		url.set_path(path_url.split("/ref").next().unwrap_or(path_url));
-		Ok(Option::Some(url))
+		if let Some(search_element_1) = html.select(&self.search_selector_1).next() {
+			let search_element_2 = search_element_1.select(&self.search_selector_2).next().ok_or(anyhow!("No search element 2"))?;
+			let path_url = search_element_2.value().attr("href").ok_or(anyhow!("No link element"))?;
+			let mut url = Url::parse("https://www.amazon.fr").unwrap();
+			url.set_path(path_url.split("/ref").next().unwrap_or(path_url));
+			Ok(Option::Some(url))
+		} else {
+			Ok(None)
+		}
 	}
 }
 

src/price_checker.rs

@@ -13,7 +13,7 @@ const USER_AGENT: &str = "Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/2010010
 /// Struct used to get price from a website
 pub struct PriceChecker {
 	client: Client,
-	parser_list: parser::List
+	pub parser_list: parser::List
 }
 
 impl PriceChecker {