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

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

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

fn main() -> Result<()> {
	let matches = App::new("Price checker")
		.version(crate_version!())
		.author("Rémi BERTHO <remi.bertho@dalan.fr>")
		.about("Check price")
		.subcommand(
			SubCommand::with_name("get")
				.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() {
		("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_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!(" - {} : {}", name, 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(())
}