extern crate clap;

use clap::{App, Arg};

use std::env;

fn main() {
    let matches = App::new("casaubon")
        .version("0.3.2")
        .author("Dylan Baker")
        .about("Highly opinionated static site generator")
        .arg(
            Arg::with_name("command")
                .required(true)
                .possible_values(&["build", "new", "watch"])
                .index(1),
        )
        .arg(Arg::with_name("drafts").short("d").long("drafts"))
        .arg(
            Arg::with_name("name")
                .required_if("command", "new")
                .index(2),
        )
        .get_matches();

    let include_drafts = match matches.occurrences_of("drafts") {
        0 => false,
        1 => true,
        _ => true,
    };

    let command = matches.value_of("command").unwrap();
    if command == "build" {
        casaubon::build(
            include_drafts,
            &env::current_dir().expect("Can't read current directory"),
        );
    } else if command == "new" {
        casaubon::new(
            &matches.value_of("name").unwrap(),
            &env::current_dir().expect("Can't read current directory"),
        );
    } else if command == "watch" {
        casaubon::build(
            include_drafts,
            &env::current_dir().expect("Can't read current directory"),
        );
        casaubon::watch(
            include_drafts,
            &env::current_dir().expect("Can't read current directory"),
        )
        .expect("Error while watching posts directory");
    }
}