#![feature(test)]

#[macro_use]
extern crate clap;
extern crate test;

use clap::{App, Arg, SubCommand, AppSettings};

use test::Bencher;

static ARGS: &'static str = "-o --option=[opt]... 'tests options'
                             [positional] 'tests positionals'";
static OPT3_VALS: [&'static str; 2] = ["fast", "slow"];
static POS3_VALS: [&'static str; 2] = ["vi", "emacs"];

macro_rules! create_app {
    () => ({
        App::new("claptests")
                .version("0.1")
                .about("tests clap library")
                .author("Kevin K. <kbknapp@gmail.com>")
                .args_from_usage(ARGS)
                .arg(Arg::from_usage("-f --flag... 'tests flags'")
                             .global(true))
                .args(&[
                          Arg::from_usage("[flag2] -F 'tests flags with exclusions'").conflicts_with("flag").requires("option2"),
                          Arg::from_usage("--long-option-2 [option2] 'tests long options with exclusions'").conflicts_with("option").requires("positional2"),
                          Arg::from_usage("[positional2] 'tests positionals with exclusions'"),
                          Arg::from_usage("-O --Option [option3] 'tests options with specific value sets'").possible_values(&OPT3_VALS),
                          Arg::from_usage("[positional3]... 'tests positionals with specific values'").possible_values(&POS3_VALS),
                          Arg::from_usage("--multvals [one] [two] 'Tests multiple values, not mult occs'"),
                          Arg::from_usage("--multvalsmo... [one] [two] 'Tests multiple values, not mult occs'"),
                          Arg::from_usage("--minvals2 [minvals]... 'Tests 2 min vals'").min_values(2),
                          Arg::from_usage("--maxvals3 [maxvals]... 'Tests 3 max vals'").max_values(3)
                    ])
                .subcommand(SubCommand::with_name("subcmd")
                                        .about("tests subcommands")
                                        .version("0.1")
                                        .author("Kevin K. <kbknapp@gmail.com>")
                                        .arg_from_usage("-o --option [scoption]... 'tests options'")
                                        .arg_from_usage("[scpositional] 'tests positionals'"))
    })
}

#[bench]
fn create_app_from_usage(b: &mut Bencher) {

    b.iter(|| create_app!());
}

#[bench]
fn create_app_builder(b: &mut Bencher) {
    b.iter(|| {
        App::new("claptests")
                .version("0.1")
                .about("tests clap library")
                .author("Kevin K. <kbknapp@gmail.com>")
                .arg(Arg::with_name("opt")
                    .help("tests options")
                    .short("o")
                    .long("option")
                    .takes_value(true)
                    .multiple(true))
                .arg(Arg::with_name("positional")
                    .help("tests positionals")
                    .index(1))
                .arg(Arg::with_name("flag")
                     .short("f")
                     .help("tests flags")
                     .long("flag")
                     .multiple(true)
                     .global(true))
                .arg(Arg::with_name("flag2")
                    .short("F")
                    .help("tests flags with exclusions")
                    .conflicts_with("flag")
                    .requires("option2"))
                .arg(Arg::with_name("option2")
                    .help("tests long options with exclusions")
                    .conflicts_with("option")
                    .requires("positional2")
                    .takes_value(true)
                    .long("long-option-2"))
                .arg(Arg::with_name("positional2")
                    .index(3)
                    .help("tests positionals with exclusions"))
                .arg(Arg::with_name("option3")
                    .short("O")
                    .long("Option")
                    .takes_value(true)
                    .help("tests options with specific value sets")
                    .possible_values(&OPT3_VALS))
                .arg(Arg::with_name("positional3")
                    .multiple(true)
                    .help("tests positionals with specific values")
                    .index(4)
                    .possible_values(&POS3_VALS))
                .arg(Arg::with_name("multvals")
                    .long("multvals")
                    .takes_value(true)
                    .help("Tests multiple values, not mult occs")
                    .value_names(&["one", "two"]))
                .arg(Arg::with_name("multvalsmo")
                    .long("multvalsmo")
                    .takes_value(true)
                    .multiple(true)
                    .help("Tests multiple values, not mult occs")
                    .value_names(&["one", "two"]))
                .arg(Arg::with_name("minvals")
                    .long("minvals2")
                    .multiple(true)
                    .takes_value(true)
                    .help("Tests 2 min vals")
                    .min_values(2))
                .arg(Arg::with_name("maxvals")
                    .long("maxvals3")
                    .takes_value(true)
                    .multiple(true)
                    .help("Tests 3 max vals")
                    .max_values(3))
                .subcommand(SubCommand::with_name("subcmd")
                    .about("tests subcommands")
                    .version("0.1")
                    .author("Kevin K. <kbknapp@gmail.com>")
                    .arg(Arg::with_name("scoption")
                        .short("o")
                        .long("option")
                        .multiple(true)
                        .takes_value(true)
                        .help("tests options"))
                    .arg(Arg::with_name("scpositional")
                        .index(1)
                        .help("tests positionals")));
    });
}

#[bench]
fn create_app_macros(b: &mut Bencher) {
    b.iter(|| {
        clap_app!(claptests =>
                (version: "0.1")
                (about: "tests clap library")
                (author: "Kevin K. <kbknapp@gmail.com>")
                (@arg opt: -o --option +takes_value ... "tests options")
                (@arg positional: index(1) "tests positionals")
                (@arg flag: -f --flag ... +global "tests flags")
                (@arg flag2: -F conflicts_with[flag] requires[option2]
                    "tests flags with exclusions")
                (@arg option2: --long_option_2 conflicts_with[option] requires[positional2]
                    "tests long options with exclusions")
                (@arg positional2: index(2) "tests positionals with exclusions")
                (@arg option3: -O --Option +takes_value possible_value[fast slow]
                    "tests options with specific value sets")
                (@arg positional3: index(3) ... possible_value[vi emacs]
                    "tests positionals with specific values")
                (@arg multvals: --multvals +takes_value value_name[one two]
                    "Tests multiple values, not mult occs")
                (@arg multvalsmo: --multvalsmo ... +takes_value value_name[one two]
                    "Tests multiple values, not mult occs")
                (@arg minvals: --minvals2 min_values(1) ... +takes_value "Tests 2 min vals")
                (@arg maxvals: --maxvals3 ... +takes_value max_values(3) "Tests 3 max vals")
                (@subcommand subcmd =>
                    (about: "tests subcommands")
                    (version: "0.1")
                    (author: "Kevin K. <kbknapp@gmail.com>")
                    (@arg scoption: -o --option ... +takes_value "tests options")
                    (@arg scpositional: index(1) "tests positionals"))
        );
    });
}

#[bench]
fn parse_clean(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec![""]));
}

#[bench]
fn parse_flag(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "-f"]));
}

#[bench]
fn parse_option(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "-o", "option1"]));
}

#[bench]
fn parse_positional(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "arg1"]));
}

#[bench]
fn parse_sc_clean(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "subcmd"]));
}

#[bench]
fn parse_sc_flag(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "subcmd", "-f"]));
}

#[bench]
fn parse_sc_option(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "subcmd", "-o", "option1"]));
}

#[bench]
fn parse_sc_positional(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "subcmd", "arg1"]));
}

#[bench]
fn parse_complex1(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "-ff", "-o", "option1", "arg1", "-O", "fast", "arg2", "--multvals", "one", "two", "emacs"]));
}

#[bench]
fn parse_complex2(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "arg1", "-f", "arg2", "--long-option-2", "some", "-O", "slow", "--multvalsmo", "one", "two", "--minvals2", "3", "2", "1"]));
}

#[bench]
fn parse_complex2_with_args_negate_scs(b: &mut Bencher) {
    b.iter(|| create_app!().setting(AppSettings::ArgsNegateSubcommands).get_matches_from(vec!["myprog", "arg1", "-f", "arg2", "--long-option-2", "some", "-O", "slow", "--multvalsmo", "one", "two", "--minvals2", "3", "2", "1"]));
}

#[bench]
fn parse_sc_complex(b: &mut Bencher) {
    b.iter(|| create_app!().get_matches_from(vec!["myprog", "subcmd", "-f", "-o", "option1", "arg1"]));
}