extern crate anyhow;
extern crate clap;
extern crate url;
extern crate arraygen;

pub mod price_result;
pub mod parser;
pub mod price_checker;

use price_result::PriceResult;
use price_checker::PriceChecker;
use url::Url;
use anyhow::Result;
use clap::{Arg, App, SubCommand};

fn main() -> Result<()> {
	let matches = App::new("Price checker")
                          .version("0.1")
                          .author("Rémi BERTHO <remi.bertho@dalan.fr>")
                          .about("Check price")
                          .subcommand(SubCommand::with_name("check")
                                      .about("Check 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("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)) => {
			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)) => {
			for name in check_matches.values_of("name").unwrap() {
				let res = price_checker.search(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!("   * {}", url);
						println!("   * {}", price);
					}
				}
			}
		},
		("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());
		},
	}
	Ok(())
}