Add search in a website

TODO.md

@@ -3,7 +3,7 @@
 * [x] Récupération prix darty avec [scraper](https://crates.io/crates/scraper) et [reqwest](https://crates.io/crates/reqwest)
 * [x] Ajout du support de la Fnac, …
 * [x] Récupération URL ligne de commande avec [clap](https://crates.io/crates/clap)
-* [ ] Ajout de SearchParser pour rechercher un article sur tous les parseurs - recherche sur un seul parser
+* [ ] Ajout de SearchParser pour rechercher un article sur tous les parseurs
 * [x] Commande de liste des différents parseurs
 * [ ] Ajout des pays avec [celes](https://crates.io/crates/celes) : recherche uniquement sur les parser du pays et parseur multi pays (amazon par exemple)
 * [ ] Lecture des URLs depuis un fichier avec [toml](https://crates.io/crates/toml)

src/main.rs

@@ -19,40 +19,58 @@ fn main() -> Result<()> {
 		.author("Rémi BERTHO <remi.bertho@dalan.fr>")
 		.about("Check price")
 		.subcommand(
-			SubCommand::with_name("check")
+			SubCommand::with_name("get")
-				.about("Check from an URL")
+				.about("Get a price from an URL")
 				.arg(Arg::with_name("URL").required(true).multiple(true).help("The URL to get price")),
 		)
 		.subcommand(
 			SubCommand::with_name("search")
 				.about("Search an object")
+				.arg(Arg::with_name("parser")
+                               .short("w")
+                               .long("website")
+                               .value_name("WEBSITE")
+                               .help("Website name")
+                               .takes_value(true))
 				.arg(Arg::with_name("name").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() {
-		("check", Some(check_matches)) => {
+		("get", Some(check_matches)) => {
 			for url_str in check_matches.values_of("URL").unwrap() {
 				let url = Url::parse(url_str)?;
 				println!("{}", price_checker.get_price(&url)?);
 			}
 		}
 		("search", Some(check_matches)) => {
+			if let Some(parser) = check_matches.value_of("parser")
+				{
+					for name in check_matches.values_of("name").unwrap() {
+					if let Some(url) = price_checker.search(parser, name)? {
+						let price = price_checker.get_price(&url)?;
+						println!(" - {}", name);
+						println!("   * {}", url);
+						println!("   * {}", price);
+					}
+					}
+				} else {
 			for name in check_matches.values_of("name").unwrap() {
-				let res = price_checker.search(name)?;
+				let res = price_checker.search_all(name)?;
 				if res.is_empty() {
 					println!("«{}» not found", name);
 				} else {
 					for (parser_name, url) in res {
 						let price = price_checker.get_price(&url)?;
-						println!(" - {}", parser_name);
+						println!(" - {} : {}", name, parser_name);
 						println!("   * {}", url);
 						println!("   * {}", price);
 					}
 				}
 			}
 		}
+		}
 		("list", _) => {
 			println!("Price parsers:");
 			for parser in price_checker.parser_list.get_price().iter() {

src/parser.rs

@@ -5,7 +5,7 @@ pub mod fnac;
 pub mod ldlc;
 
 use crate::price_result::PriceResult;
-use anyhow::Result;
+use anyhow::{anyhow, Result};
 use arraygen::Arraygen;
 use scraper::Html;
 use url::Url;
@@ -27,7 +27,7 @@ pub trait PriceParser: Parser {
 	fn parse_price(&self, html: &Html) -> Result<PriceResult>;
 }
 
-pub trait SearchParser: Parser {
+pub trait SearchParser: PriceParser {
 	/// Return the search URL
 	fn search_url(&self, name: &str) -> Url;
 	/// Return the first occurence of result of the page if any
@@ -39,11 +39,13 @@ macro_rules! gen_list {
 		#[derive(Arraygen, Debug)]
 		#[gen_array(pub fn get_price: & dyn PriceParser)]
 		#[gen_array(pub fn get_search: & dyn SearchParser)]
+		#[gen_array(pub fn get_all: & dyn Parser)]
 		pub struct List {
 			$(
 				$(
 					#[in_array($array)]
 				)*
+				#[in_array(get_all)]
 				$module: $module::$name
 			),*
 		}
@@ -71,6 +73,16 @@ gen_list!(
 	[amazon::Amazon: get_price, get_search]
 );
 
+impl List {
+	pub fn get_parser(&self, name: &str) -> Result<&dyn SearchParser> {
+		Ok(*self
+			.get_search()
+			.iter()
+			.find(|&&parser| parser.name().to_lowercase() == name.to_lowercase())
+			.ok_or(anyhow!("Cannot find the parser {}", name))?)
+	}
+}
+
 #[test]
 fn test_parser_list() {
 	let parser_list = List::new().unwrap();

src/price_checker.rs

@@ -45,7 +45,7 @@ impl PriceChecker {
 	}
 
 	/// Search an object in all parsers
-	pub fn search(&self, name: &str) -> Result<Vec<(&'static str, Url)>> {
+	pub fn search_all(&self, name: &str) -> Result<Vec<(&'static str, Url)>> {
 		let mut urls = Vec::new();
 		for parser in self.parser_list.get_search().iter() {
 			let search_url = parser.search_url(name);
@@ -56,6 +56,19 @@ impl PriceChecker {
 		}
 		Ok(urls)
 	}
+
+	/// Search an object in a parser
+	pub fn search(&self, parser_name: &str, name: &str) -> Result<Option<Url>> {
+		let parser = self.parser_list.get_parser(parser_name)?;
+		let search_url = parser.search_url(name);
+		let document = self.get_html(&search_url)?;
+		if let Some(url) = parser.search(&document)? {
+			Ok(Some(url))
+		}
+		else {
+			Ok(None)
+		}
+	}
 }
 
 #[test]