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use super::Command;
use crate::{cache::Cache, helper::Digit, err::Error};
use clap::{SubCommand, App, Arg, ArgMatches};
pub struct ListCommand;
static CATEGORY_HELP: &'static str = r#"Fliter problems by category name
[alogrithms, database, shell]
"#;
static QUERY_HELP: &'static str = r#"Fliter questions by conditions:
Uppercase means negative
e = easy E = m+h
m = medium M = e+h
h = hard H = e+m
d = done D = not done
l = locked L = not locked
s = starred S = not starred"#;
static LIST_AFTER_HELP: &'static str = r#"EXAMPLES:
leetcode list List all questions
leetcode list array List questions that has "array" in name
leetcode list -c database List questions that in database category
leetcode list -q eD List questions that with easy level and not done
"#;
impl Command for ListCommand {
fn usage<'a, 'list>() -> App<'a, 'list> {
SubCommand::with_name("list")
.about("List problems")
.visible_alias("l")
.arg(Arg::with_name("category")
.short("c")
.long("category")
.takes_value(true)
.help(CATEGORY_HELP)
)
.arg(Arg::with_name("query")
.short("q")
.long("query")
.takes_value(true)
.help(QUERY_HELP)
)
.after_help(LIST_AFTER_HELP)
.arg(Arg::with_name("stat")
.short("s")
.long("stat")
.help("Show statistics of listed problems")
)
.arg(Arg::with_name("keyword")
.takes_value(true)
.help("Keyword in select query")
)
}
fn handler(m: &ArgMatches) -> Result<(), Error> {
let cache = Cache::new().unwrap();
let mut ps = cache.get_problems()?;
if ps.len() == 0 {
cache.download_problems()?;
Self::handler(m)?
}
if m.is_present("category") {
ps.retain(|x| x.category == m.value_of("category").unwrap());
}
if m.is_present("query") {
let query = m.value_of("query").unwrap();
crate::helper::filter(&mut ps, query.to_string());
}
if let Some(keyword) = m.value_of("keyword") {
ps.retain(|x| x.name.contains(&keyword));
}
for p in &ps { println!("{}", p); }
if m.is_present("stat") {
let mut listed = 0;
let mut locked = 0;
let mut starred = 0;
let mut ac = 0;
let mut notac = 0;
let mut easy = 0;
let mut medium = 0;
let mut hard = 0;
for p in ps {
listed += 1;
if p.starred {starred += 1;}
if p.locked {locked += 1;}
match p.status.as_str() {
"ac" => ac += 1,
"notac" => notac += 1,
_ => {}
}
match p.level {
1 => easy += 1,
2 => medium += 1,
3 => hard += 1,
_ => {}
}
}
let remain = listed - ac - notac;
println!("
Listed: {} Locked: {} Starred: {}
Accept: {} Not-Ac: {} Remain: {}
Easy : {} Medium: {} Hard: {}",
listed.digit(4), locked.digit(4), starred.digit(4),
ac.digit(4), notac.digit(4), remain.digit(4),
easy.digit(4), medium.digit(4), hard.digit(4),
);
}
Ok(())
}
}