pacbot/src/commands/pacman.rs
2019-10-30 21:05:48 +01:00

113 lines
2.8 KiB
Rust

use serde::{Deserialize, Serialize};
use serenity::model::channel::Message;
use serenity::model::id::ChannelId;
use serenity::prelude::*;
use std::fmt;
extern crate reqwest;
pub fn query_pacman(ctx: Context, msg: Message) {
let mut args = msg.content.split_whitespace().collect::<Vec<_>>();
// the !pacman
args.remove(0);
if args.len() == 0 {
send(
msg.channel_id,
"Error: expected at least 1 additional argument",
&ctx,
);
return;
}
if args.len() == 1 {
// try by full package name
let response = search(&format!(
"https://www.archlinux.org/packages/search/json/?name={}",
&args[0]
));
// this is 1 for most packages and 2 if there’s a second version in testing
if response.results.len() != 0 {
respond_with_results(msg.channel_id, &response.results, &ctx);
return;
}
}
let query = args.join(" ");
let response = search(&format!(
"https://www.archlinux.org/packages/search/json/?q={}",
&query
));
if response.results.len() == 0 {
send(msg.channel_id, "No results", &ctx);
return;
}
respond_with_results(msg.channel_id, &response.results, &ctx);
}
fn respond_with_results(target: ChannelId, results: &Vec<Package>, ctx: &Context) {
send(
target,
&format!(
"```{}```",
results
.into_iter()
.take(5)
.map(|p| format!("{}\n", p))
.collect::<String>()
),
ctx,
);
}
fn send(target: ChannelId, message: &str, ctx: &Context) {
if let Err(cause) = target.say(&ctx.http, message) {
println!("Could not send message: {}", cause);
}
}
fn search(url: &str) -> Response {
return search_inner(url).unwrap_or(EMPTY_RESULT);
}
fn search_inner(url: &str) -> Result<Response, reqwest::Error> {
let resp = reqwest::get(url)?.json::<Response>()?;
Ok(resp)
}
const EMPTY_RESULT: Response = Response {
version: 0,
limit: 0,
valid: false,
results: Vec::new(),
};
#[derive(Serialize, Deserialize, Debug)]
struct Response {
version: i8,
limit: i32,
valid: bool,
results: Vec<Package>,
}
#[derive(Serialize, Deserialize, Debug)]
struct Package {
pkgname: String,
pkgbase: String,
repo: String,
pkgver: String,
pkgdesc: String,
url: String,
compressed_size: i64,
installed_size: i64,
build_date: String,
last_update: String,
flag_date: Option<String>,
}
impl fmt::Display for Package {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(
f,
"{}/{} {}\n {}",
self.repo, self.pkgname, self.pkgver, self.pkgdesc
)
}
}