114 lines
3.1 KiB
Rust
114 lines
3.1 KiB
Rust
use gotham::{
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helpers::http::response::create_response,
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hyper::{Body, Response},
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state::{FromState, State},
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};
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use http::status::StatusCode;
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use mime::TEXT_HTML;
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use typed_html::{html, text, dom::DOMTree};
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use diesel::prelude::*;
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use chrono::{offset::Local, NaiveDate};
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use libticker::{
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schema::{self, events::dsl::events},
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model::Event,
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};
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use crate::AppState;
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fn fix_url(s: &str) -> std::borrow::Cow<str> {
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if s.starts_with("http:") || s.starts_with("https:") {
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s.into()
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} else {
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format!("http://{}", s).into()
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}
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}
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struct DayEvents<'e> {
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date: NaiveDate,
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events: &'e [Event],
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}
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/// assumes pre-sorted input
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fn group_by_day(es: &[Event]) -> Vec<DayEvents> {
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let mut results = vec![];
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let mut prev_date = None;
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let mut date_start = 0;
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for (i, event) in es.iter().enumerate() {
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if prev_date.is_some() && prev_date != Some(event.dtstart.date()) {
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if i > date_start {
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results.push(DayEvents {
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date: prev_date.unwrap().clone(),
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events: &es[date_start..i],
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});
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date_start = i;
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}
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}
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prev_date = Some(event.dtstart.date());
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}
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results
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}
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fn render_index(app_state: &AppState) -> String {
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let db = app_state.db.lock().unwrap();
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let today = Local::today().naive_local().and_hms(0, 0, 0);
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let es = events
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.filter(schema::events::dtstart.ge(&today))
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.order_by(schema::events::dtstart.asc())
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.then_order_by(schema::events::dtend.desc())
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.load::<Event>(&*db)
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.unwrap();
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let days = group_by_day(&es);
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let doc: DOMTree<String> = html!(
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<html>
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<head>
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<title>"Ticker"</title>
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<meta charset="utf-8" />
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</head>
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<body>
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{ days.iter().map(|day| html!(<div>
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<nav><h2>{ text!("{}", &day.date) }</h2></nav>
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{ day.events.iter().map(|e| html!(
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<article class="event">
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{ match &e.url {
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None => html!(
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<h3>{ text!("{}", &e.summary) }</h3>
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),
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Some(url) => html!(
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<h3>
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<a href={ fix_url(url) }>
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{ text!("{}", &e.summary) }
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</a>
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</h3>
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),
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} }
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<p class="dtstart">{ text!("{}", &e.dtstart) }</p>
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{ e.location.as_ref().map(|location| html!(
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<p>
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{ text!("{}", location) }
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</p>
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)) }
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</article>
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)) }
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</div>)) }
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</body>
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</html>
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);
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format!("<DOCTYPE html>\n{}", doc.to_string())
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}
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pub fn index(state: State) -> (State, Response<Body>) {
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let message = {
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let app_state = AppState::borrow_from(&state);
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render_index(app_state)
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};
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let res = create_response(&state, StatusCode::OK, TEXT_HTML, message);
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(state, res)
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}
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