/*
    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::{
    account::session::Session,
    error::MyError,
    layout::{DynLayoutPage, LayoutPage},
    node::NodeCard,
    sort::{filter_and_sort_nodes, NodeFilterSort, NodeFilterSortForm, SortOrder, SortProperty},
};
use crate::{database::Database, routes::api::AcceptJson, uri};
use jellycommon::{api::ApiItemsResponse, Visibility};
use rocket::{get, serde::json::Json, Either, State};

/// This function is a stub and only useful for use in the uri! macro.
#[get("/items")]
pub fn r_all_items() {}

#[get("/items?<page>&<filter..>")]
pub fn r_all_items_filter(
    sess: Session,
    db: &State<Database>,
    aj: AcceptJson,
    page: Option<usize>,
    filter: NodeFilterSort,
) -> Result<Either<DynLayoutPage<'_>, Json<ApiItemsResponse>>, MyError> {
    let mut items = db.list_nodes_with_udata(sess.user.name.as_str())?;

    items.retain(|(n, _)| matches!(n.visibility, Visibility::Visible));

    filter_and_sort_nodes(
        &filter,
        (SortProperty::Title, SortOrder::Ascending),
        &mut items,
    );

    let page_size = 100;
    let page = page.unwrap_or(0);
    let offset = page * page_size;
    let from = offset.min(items.len());
    let to = (offset + page_size).min(items.len());
    let max_page = items.len().div_ceil(page_size);

    Ok(if *aj {
        Either::Right(Json(ApiItemsResponse {
            count: items.len(),
            pages: max_page,
            items: items[from..to].to_vec(),
        }))
    } else {
        Either::Left(LayoutPage {
            title: "All Items".to_owned(),
            content: markup::new! {
                .page.dir {
                    h1 { "All Items" }
                    @NodeFilterSortForm { f: &filter }
                    ul.children { @for (node, udata) in &items[from..to] {
                        li {@NodeCard { node, udata }}
                    }}
                    p.pagecontrols {
                        span.current { "Page " @{page + 1} " of " @max_page " " }
                        @if page > 0 {
                            a.prev[href=uri!(r_all_items_filter(Some(page - 1), filter.clone()))] { "Previous page" } " "
                        }
                        @if page + 1 < max_page {
                            a.next[href=uri!(r_all_items_filter(Some(page + 1), filter.clone()))] { "Next page" }
                        }
                    }
                }
            },
            ..Default::default()
        })
    })
}