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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use toml::Value;
use uuid::Uuid;
use libimagstore::store::Entry;
use libimagstore::store::FileLockEntry;
use libimagstore::store::Store;
use libimagstore::storeid::StoreIdIterator;
use libimagentrylink::internal::InternalLinker;
use libimagentryutil::isa::Is;
use libimagentryutil::isa::IsKindHeaderPathProvider;
use toml_query::insert::TomlValueInsertExt;
use failure::Fallible as Result;
use failure::ResultExt;
use failure::Error;
use failure::err_msg;
pub trait Annotateable {
fn annotate<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>>;
fn denotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<Option<FileLockEntry<'a>>>;
fn annotations(&self) -> Result<StoreIdIterator>;
fn is_annotation(&self) -> Result<bool>;
}
provide_kindflag_path!(IsAnnotation, "annotation.is_annotation");
impl Annotateable for Entry {
/// Annotate an entry, returns the new entry which is used to annotate
fn annotate<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>> {
let ann_name = Uuid::new_v4().to_hyphenated().to_string();
debug!("Creating annotation with name = {}", ann_name);
store.retrieve(crate::module_path::new_id(ann_name.clone())?)
.and_then(|mut anno| {
{
let _ = anno.set_isflag::<IsAnnotation>()?;
let _ = anno
.get_header_mut()
.insert("annotation.name", Value::String(String::from(ann_name)))?;
}
Ok(anno)
})
.and_then(|mut anno| {
anno.add_internal_link(self)
.context(err_msg("Linking error"))
.map_err(Error::from)
.map(|_| anno)
})
}
// Removes the annotation `ann_name` from the current entry.
// Fails if there's no such annotation entry or if the link to that annotation entry does not
// exist.
fn denotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<Option<FileLockEntry<'a>>> {
if let Some(mut annotation) = store.get(crate::module_path::new_id(ann_name)?)? {
let _ = self.remove_internal_link(&mut annotation)?;
Ok(Some(annotation))
} else {
// error: annotation does not exist
Err(format_err!("Annotation '{}' does not exist", ann_name)).map_err(Error::from)
}
}
/// Get all annotations of an entry
fn annotations(&self) -> Result<StoreIdIterator> {
self.get_internal_links()
.map(|it| {
it.filter(|link| link.get_store_id().is_in_collection(&["annotation"]))
.map(|link| Ok(link.get_store_id().clone()))
})
.map(Box::new)
.map(|inner| StoreIdIterator::new(inner))
}
fn is_annotation(&self) -> Result<bool> {
self.is::<IsAnnotation>()
}
}
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