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use std::io;
use std::io::prelude::*;
use std::fs::File;
extern crate telegram_bot;
use telegram_bot::{Api, Message, MessageType, ParseMode};
extern crate time;
extern crate regex;
use self::regex::Regex;
use super::rustc_serialize::json;
use feature::FeatureResult;
use feature::Feature;
#[derive(RustcDecodable)]
pub struct Anime {
name: String,
score: f64,
}
pub struct TopAnime {
animes: Vec<Anime>,
last_update: f64,
}
impl Feature for TopAnime {
fn name(&self) -> &'static str {
"TopAnime"
}
fn init(&mut self) {}
fn handle(&mut self, a: Api, m: Message) -> Result<FeatureResult, String> {
if let MessageType::Text(s) = m.msg {
let re = Regex::new(r"(?i)luggas top ([0-9]{1,3}) anime").unwrap();
let cap = re.captures(&s);
let s_num = match cap {
Some(s) => s.at(1),
None => return Ok(FeatureResult::Skip),
};
let s_num = match s_num {
Some(s) => s,
None => return Ok(FeatureResult::Skip),
};
// parse to int
let num = match s_num.parse::<i32>() {
Ok(n) => n,
Err(e) => {
println!("{}", e);
return Ok(FeatureResult::Skip);
}
};
let start = time::precise_time_ns();
if let Err(e) = self.update_animes() {
println!("{}", e);
return Ok(FeatureResult::Skip);
}
println!("(benchm) updating animes: {}ms",
(time::precise_time_ns() - start) / 1000000);
let mut msg = String::new();
for i in 0..num {
let i = i as usize;
if self.animes.len() <= i {
break;
}
let mut pref = "";
if i % 2 == 0 {
pref = "*";
}
msg.push_str(&format!("{}{}. {} ({}%){}\n",
pref,
i + 1,
self.animes[i].name,
self.animes[i].score,
pref));
}
println!("(benchm) anime before send: {}ms",
(time::precise_time_ns() - start) / 1000000);
if let Err(e) = a.send_message(m.chat.id(),
msg,
Some(ParseMode::Markdown),
None,
Some(m.message_id),
None) {
println!("{}", e);
}
println!("(benchm) anime: {}ms",
(time::precise_time_ns() - start) / 1000000);
return Ok(FeatureResult::Handled);
}
Ok(FeatureResult::Skip)
}
}
impl TopAnime {
pub fn new() -> TopAnime {
let mut t = TopAnime {
animes: vec![],
last_update: 0f64,
};
t.init();
t
}
fn update_animes(&mut self) -> Result<(), io::Error> {
let now = time::precise_time_s();
if now - self.last_update < 3600.0f64 {
return Ok(());
}
let mut f = try!(File::open("data/animescore.json"));
let mut buf = String::new();
try!(f.read_to_string(&mut buf));
let v: Vec<Anime> = match json::decode(&buf) {
Ok(v) => v,
Err(e) => return Err(io::Error::new(io::ErrorKind::InvalidData, format!("{}", e))),
};
self.animes = v;
self.last_update = now;
Ok(())
}
}
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