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/*
This file is part of jellything (https://codeberg.org/metamuffin/jellything)
which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
Copyright (C) 2023 metamuffin <metamuffin.org>
*/
use super::{account::session::Session, layout::LayoutPage, node::NodeCard};
use crate::{
database::Database,
routes::ui::{error::MyResult, layout::DynLayoutPage},
};
use anyhow::Context;
use chrono::{Datelike, Utc};
use jellybase::CONF;
use jellycommon::NodePublic;
use rocket::{get, State};
use tokio::fs::read_to_string;
#[get("/")]
pub fn r_home(sess: Session, db: &State<Database>) -> MyResult<DynLayoutPage> {
let mut items = db
.node
.iter()
.map(|e| e.context("listing"))
.collect::<anyhow::Result<Vec<_>>>()?
.into_iter()
.map(|(k, n)| (k, n.public))
.collect::<Vec<(String, NodePublic)>>();
let random = (0..16)
.flat_map(|i| Some(items[cheap_daily_random(i).checked_rem(items.len())?].clone()))
.collect::<Vec<_>>();
let toplevel = db
.node
.get(&"library".to_string())?
.context("root node missing")?
.public
.children
.into_iter()
.map(|n| {
Ok((
n.clone(),
db.node.get(&n)?.context("child does not exist")?.public,
))
})
.collect::<anyhow::Result<Vec<_>>>()?
.into_iter()
.collect::<Vec<_>>();
items.sort_by_key(|(_, n)| {
n.release_date
.map(|d| d.naive_utc().timestamp())
.unwrap_or(0)
});
let latest = items
.iter()
.take(16)
.map(|k| k.to_owned())
.collect::<Vec<_>>();
Ok(LayoutPage {
title: "Home".to_string(),
content: markup::new! {
p { "Welcome back " @sess.user.display_name }
h2 { "Explore " @CONF.brand }
.homelist { ul {@for (id, node) in &toplevel {
li { @NodeCard { id, node } }
}}}
h2 { "Latest Releases" }
.homelist { ul {@for (id, node) in &latest {
li { @NodeCard { id, node } }
}}}
h2 { "Today's Picks" }
.homelist { ul {@for (id, node) in &random {
li { @NodeCard { id, node } }
}}}
p.error { "TODO: continue watching" }
p.error { "TODO: recently added" }
p.error { "TODO: best rating" }
},
..Default::default()
})
}
#[get("/", rank = 2)]
pub async fn r_home_unpriv() -> MyResult<DynLayoutPage<'static>> {
let front = read_to_string(CONF.asset_path.join("front.htm")).await?;
Ok(LayoutPage {
title: "Home".to_string(),
content: markup::new! {
@markup::raw(&front)
},
..Default::default()
})
}
fn cheap_daily_random(i: usize) -> usize {
xorshift(xorshift(Utc::now().num_days_from_ce() as u64) + i as u64) as usize
}
fn xorshift(mut x: u64) -> u64 {
x ^= x << 13;
x ^= x >> 7;
x ^= x << 17;
x
}
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