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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::ui::error::MyResult;
use crate::helper::{accept::AcceptJson, language::AcceptLanguage, A};
use jellycommon::{user::CreateSessionParams, NodeID, Visibility};
use jellyimport::asset_token::AssetInner;
use jellylogic::{
    login::login_logic,
    session::{AdminSession, Session},
    Database,
};
use jellyui::locale::get_translation_table;
use rocket::{get, post, response::Redirect, serde::json::Json, Either, State};
use serde_json::{json, Value};
use std::collections::HashMap;

#[get("/api")]
pub fn r_api_root() -> Redirect {
    Redirect::moved("https://jellything.metamuffin.org/book/api.html#jellything-http-api")
}

#[get("/version")]
pub fn r_version() -> &'static str {
    env!("CARGO_PKG_VERSION")
}

#[get("/translations")]
pub fn r_translations(
    lang: AcceptLanguage,
    aj: AcceptJson,
) -> Either<Json<&'static HashMap<&'static str, &'static str>>, String> {
    let AcceptLanguage(lang) = lang;
    let table = get_translation_table(&lang);
    if *aj {
        Either::Left(Json(table))
    } else {
        let mut s = String::new();
        for (k, v) in table {
            s += k;
            s += "=";
            s += v;
            s += "\n";
        }
        Either::Right(s)
    }
}

#[post("/api/create_session", data = "<data>")]
pub fn r_api_account_login(
    database: &State<Database>,
    data: Json<CreateSessionParams>,
) -> MyResult<Value> {
    let token = login_logic(
        database,
        &data.username,
        &data.password,
        data.expire,
        data.drop_permissions.clone(),
    )?;
    Ok(json!(token))
}

#[get("/api/asset_token_raw/<token>")]
pub fn r_api_asset_token_raw(_admin: A<AdminSession>, token: &str) -> MyResult<Json<AssetInner>> {
    Ok(Json(AssetInner::deser(token)?))
}

#[get("/nodes_modified?<since>")]
pub fn r_nodes_modified_since(
    _session: A<Session>,
    database: &State<Database>,
    since: u64,
) -> MyResult<Json<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(Json(nodes))
}