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use crate::{Config, Error, Result};
use rocket::{get, post, serde::json::Json, Build, Rocket, State};
use rocket_okapi::{
    openapi, openapi_get_routes,
    rapidoc::{make_rapidoc, GeneralConfig, HideShowConfig, RapiDocConfig},
    settings::UrlObject,
    swagger_ui::{make_swagger_ui, SwaggerUIConfig},
};
use zone_core::Container;
use zone_nspawn::NSpawn;

/// # Test endpoint
///
/// Returns a list of containers based on the query.
#[openapi(tag = "Testing")]
#[get("/test")]
pub fn test_endpoint(zfs: &State<zone_zfs::ZFS>) -> Json<String> {
    Json(zfs.config.pool_name.to_owned())
}

/// List containers
///
/// Returns a list of containers based on the query.
#[openapi(tag = "Container")]
#[get("/container/list?<container..>")]
pub fn container_list(container: Container) -> Result<Json<Vec<Container>>> {
    NSpawn::get_containers()
        .map(|v| container.filter_from(v))
        .map(Json::from)
        .map_err(Error::from)
}

/// Create container
///
/// Creates a new container volume from the provided container json data
#[openapi(tag = "Container")]
#[post("/container", data = "<container>")]
fn clone_container(
    container: Json<Container>,
    zfs: &State<zone_zfs::ZFS>,
) -> Result<Json<Container>> {
    zfs.clone_from_latest(
        format!("{}-{}", container.user, container.id).into(),
        container.template.to_owned().into(),
    )?
    .try_into()
    .map_err(Error::from)
    .map(Container::into)
}

pub fn build_rocket(config: &Config) -> Result<Rocket<Build>> {
    let nspawn = zone_nspawn::NSpawn::custom(&config.nspawn_config).map_err(Error::from)?;
    let zfs = zone_zfs::ZFS::custom(&config.zfs_config).map_err(Error::from)?;

    Ok(rocket::custom(&config.rocket_config)
        .mount(
            "/",
            openapi_get_routes![test_endpoint, container_list, clone_container,],
        )
        .mount(
            "/swagger-ui/",
            make_swagger_ui(&SwaggerUIConfig {
                url: "../openapi.json".to_owned(),
                ..Default::default()
            }),
        )
        .mount(
            "/rapidoc/",
            make_rapidoc(&RapiDocConfig {
                general: GeneralConfig {
                    spec_urls: vec![UrlObject::new("General", "../openapi.json")],
                    ..Default::default()
                },
                hide_show: HideShowConfig {
                    allow_spec_url_load: false,
                    allow_spec_file_load: false,
                    ..Default::default()
                },
                ..Default::default()
            }),
        )
        .manage(nspawn)
        .manage(zfs))
}