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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) 2025 metamuffin <metamuffin.org>
*/
use crate::{DATABASE, filter_sort::filter_and_sort_nodes, session::Session};
use anyhow::{Result, anyhow};
use jellycommon::{
Node, NodeID, NodeKind, Visibility,
api::{ApiNodeResponse, NodeFilterSort, SortOrder, SortProperty},
user::{NodeUserData, WatchedState},
};
use jellydb::Database;
use std::{cmp::Reverse, collections::BTreeMap, sync::Arc};
pub fn get_node(
session: &Session,
id: NodeID,
children: bool,
parents: bool,
filter: NodeFilterSort,
) -> Result<ApiNodeResponse> {
let (node, udata) = DATABASE.get_node_with_userdata(id, &session)?;
let mut children = if children {
DATABASE
.get_node_children(id)?
.into_iter()
.map(|c| DATABASE.get_node_with_userdata(c, &session))
.collect::<anyhow::Result<Vec<_>>>()?
} else {
Vec::new()
};
let mut parents = if parents {
node.parents
.iter()
.map(|pid| DATABASE.get_node_with_userdata(*pid, &session))
.collect::<anyhow::Result<Vec<_>>>()?
} else {
Vec::new()
};
let mut similar = get_similar_media(&session, &node)?;
similar.retain(|(n, _)| n.visibility >= Visibility::Reduced);
children.retain(|(n, _)| n.visibility >= Visibility::Reduced);
parents.retain(|(n, _)| n.visibility >= Visibility::Reduced);
filter_and_sort_nodes(
&filter,
match node.kind {
NodeKind::Channel => (SortProperty::ReleaseDate, SortOrder::Descending),
NodeKind::Season | NodeKind::Show => (SortProperty::Index, SortOrder::Ascending),
_ => (SortProperty::Title, SortOrder::Ascending),
},
&mut children,
);
Ok(ApiNodeResponse {
children,
parents,
node,
userdata: udata,
})
}
pub fn get_similar_media(session: &Session, node: &Node) -> Result<Vec<(Arc<Node>, NodeUserData)>> {
let this_id = NodeID::from_slug(&node.slug);
let mut ranking = BTreeMap::<NodeID, usize>::new();
for tag in &node.tags {
let nodes = DATABASE.get_tag_nodes(tag)?;
let weight = 1_000_000 / nodes.len();
for n in nodes {
if n != this_id {
*ranking.entry(n).or_default() += weight;
}
}
}
let mut ranking = ranking.into_iter().collect::<Vec<_>>();
ranking.sort_by_key(|(_, k)| Reverse(*k));
ranking
.into_iter()
.take(32)
.map(|(pid, _)| DATABASE.get_node_with_userdata(pid, session))
.collect::<anyhow::Result<Vec<_>>>()
}
pub trait DatabaseNodeUserDataExt {
fn get_node_with_userdata(
&self,
id: NodeID,
session: &Session,
) -> Result<(Arc<Node>, NodeUserData)>;
}
impl DatabaseNodeUserDataExt for Database {
fn get_node_with_userdata(
&self,
id: NodeID,
session: &Session,
) -> Result<(Arc<Node>, NodeUserData)> {
Ok((
self.get_node(id)?.ok_or(anyhow!("node does not exist"))?,
self.get_node_udata(id, &session.user.name)?
.unwrap_or_default(),
))
}
}
pub fn get_nodes_modified_since(_session: &Session, since: u64) -> Result<Vec<NodeID>> {
let mut nodes = DATABASE.get_nodes_modified_since(since)?;
nodes.retain(|id| {
DATABASE.get_node(*id).is_ok_and(|n| {
n.as_ref()
.is_some_and(|n| n.visibility >= Visibility::Reduced)
})
});
Ok(nodes)
}
pub fn get_node_by_eid(_session: &Session, platform: &str, eid: &str) -> Result<Option<NodeID>> {
DATABASE.get_node_external_id(platform, eid)
}
pub fn node_id_to_slug(_session: &Session, id: NodeID) -> Result<String> {
Ok(DATABASE
.get_node(id)?
.ok_or(anyhow!("node does not exist"))?
.slug
.to_owned())
}
pub fn update_node_userdata_watched(
session: &Session,
node: NodeID,
state: WatchedState,
) -> Result<()> {
// TODO perm
DATABASE.update_node_udata(node, &session.user.name, |udata| {
udata.watched = state;
Ok(())
})
}
pub fn update_node_userdata_watched_progress(
session: &Session,
node: NodeID,
time: f64,
) -> Result<()> {
// TODO perm
DATABASE.update_node_udata(node, &session.user.name, |udata| {
udata.watched = match udata.watched {
WatchedState::None | WatchedState::Pending | WatchedState::Progress(_) => {
WatchedState::Progress(time)
}
WatchedState::Watched => WatchedState::Watched,
};
Ok(())
})
}
pub fn update_node_userdata_rating(session: &Session, node: NodeID, rating: i32) -> Result<()> {
// TODO perm
DATABASE.update_node_udata(node, &session.user.name, |udata| {
udata.rating = rating;
Ok(())
})
}
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