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ticker-serve: group_by_day()

master
Astro 2 years ago
parent
commit
a3e5ca2af3
  1. 83
      ticker-serve/src/main.rs

83
ticker-serve/src/main.rs

@ -1,13 +1,12 @@
#![feature(proc_macro_hygiene, decl_macro)]
#![recursion_limit="512"]
#![recursion_limit="1024"]
use std::fs::read_to_string;
use std::sync::Mutex;
#[macro_use] extern crate rocket;
use rocket::{State, response::content};
use typed_html::{html, text, dom::DOMTree};
use diesel::{Connection, pg::PgConnection, prelude::*};
use chrono::offset::Local;
use chrono::{offset::Local, NaiveDate};
use libticker::{
config::{Config, CalendarOptions},
@ -24,6 +23,33 @@ fn fix_url(s: &str) -> std::borrow::Cow<str> {
}
}
struct DayEvents<'e> {
date: NaiveDate,
events: &'e [Event],
}
/// assumes pre-sorted input
fn group_by_day(es: &[Event]) -> Vec<DayEvents> {
let mut results = vec![];
let mut prev_date = None;
let mut date_start = 0;
for (i, event) in es.iter().enumerate() {
if prev_date.is_some() && prev_date != Some(event.dtstart.date()) {
if i > date_start {
results.push(DayEvents {
date: prev_date.unwrap().clone(),
events: &es[date_start..i],
});
date_start = i;
}
}
prev_date = Some(event.dtstart.date());
}
results
}
#[get("/")]
fn index(db: State<Mutex<PgConnection>>) -> content::Html<String> {
let db = db.lock().unwrap();
@ -34,7 +60,8 @@ fn index(db: State<Mutex<PgConnection>>) -> content::Html<String> {
.then_order_by(schema::events::dtend.desc())
.load::<Event>(&*db)
.unwrap();
let days = group_by_day(&es);
let doc: DOMTree<String> = html!(
<html>
<head>
@ -43,29 +70,33 @@ fn index(db: State<Mutex<PgConnection>>) -> content::Html<String> {
<body>
<h1>"Ticker"</h1>
{ es.iter().map(|e| html!(
<article class="event">
{ match &e.url {
None => html!(
<h2>{ text!("{}", &e.summary) }</h2>
),
Some(url) => html!(
<h2>
<a href={ fix_url(url) }>
{ text!("{}", &e.summary) }
</a>
</h2>
),
} }
{ days.iter().map(|day| html!(<div>
<nav><h2>{ text!("{}", &day.date) }</h2></nav>
{ day.events.iter().map(|e| html!(
<article class="event">
{ match &e.url {
None => html!(
<h3>{ text!("{}", &e.summary) }</h3>
),
Some(url) => html!(
<h3>
<a href={ fix_url(url) }>
{ text!("{}", &e.summary) }
</a>
</h3>
),
} }
<p class="dtstart">{ text!("{}", &e.dtstart) }</p>
{ e.location.as_ref().map(|location| html!(
<p>
{ text!("{}", location) }
</p>
)) }
</article>
)) }
<p class="dtstart">{ text!("{}", &e.dtstart) }</p>
{ e.location.as_ref().map(|location| html!(
<p>
{ text!("{}", location) }
</p>
)) }
</article>
)) }
</div>)) }
</body>
</html>
);

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