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path: root/server/src/ui/stats.rs
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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 super::{
    error::MyError,
    layout::{DynLayoutPage, LayoutPage},
};
use crate::{
    api::AcceptJson,
    database::Database,
    locale::AcceptLanguage,
    logic::session::Session,
    ui::{
        layout::trs,
        node::{
            format_duration, format_duration_long, format_kind, format_size,
            rocket_uri_macro_r_library_node,
        },
    },
    uri,
};
use jellybase::locale::tr;
use jellycommon::{Node, NodeID, NodeKind, Visibility};
use markup::raw;
use rocket::{get, serde::json::Json, Either, State};
use serde::Serialize;
use serde_json::{json, Value};
use std::collections::BTreeMap;

#[get("/stats")]
pub fn r_stats(
    sess: Session,
    db: &State<Database>,
    aj: AcceptJson,
    lang: AcceptLanguage,
) -> Result<Either<DynLayoutPage<'_>, Json<Value>>, MyError> {
    let AcceptLanguage(lang) = lang;
    let mut items = db.list_nodes_with_udata(sess.user.name.as_str())?;
    items.retain(|(n, _)| n.visibility >= Visibility::Reduced);

    #[derive(Default, Serialize)]
    struct Bin {
        runtime: f64,
        size: u64,
        count: usize,
        max_runtime: (f64, String),
        max_size: (u64, String),
    }
    impl Bin {
        fn update(&mut self, node: &Node) {
            self.count += 1;
            self.size += node.storage_size;
            if node.storage_size > self.max_size.0 {
                self.max_size = (node.storage_size, node.slug.clone())
            }
            if let Some(m) = &node.media {
                self.runtime += m.duration;
                if m.duration > self.max_runtime.0 {
                    self.max_runtime = (m.duration, node.slug.clone())
                }
            }
        }
        fn average_runtime(&self) -> f64 {
            self.runtime / self.count as f64
        }
        fn average_size(&self) -> f64 {
            self.size as f64 / self.count as f64
        }
    }

    let mut all = Bin::default();
    let mut kinds = BTreeMap::<NodeKind, Bin>::new();
    for (i, _) in items {
        all.update(&i);
        kinds.entry(i.kind).or_default().update(&i);
    }

    Ok(if *aj {
        Either::Right(Json(json!({
            "all": all,
            "kinds": kinds,
        })))
    } else {
        Either::Left()
    })
}