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use std::path::PathBuf;
use filters::filter::Filter;
use libimagstore::store::Store;
use libimagstore::store::Entry;
use libimagstore::store::FileLockEntry;
use libimagstore::storeid::IntoStoreId;
use libimagstore::storeid::StoreId;
use libimagstore::storeid::StoreIdIteratorWithStore;
use libimagentrylink::internal::InternalLinker;
use failure::Fallible as Result;
use failure::Error;
use failure::err_msg;
pub struct Wiki<'a, 'b>(&'a Store, &'b str);
impl<'a, 'b> Wiki<'a, 'b> {
pub(crate) fn new(store: &'a Store, name: &'b str) -> Wiki<'a, 'b> {
Wiki(store, name)
}
pub(crate) fn create_index_page(&self) -> Result<FileLockEntry<'a>> {
let path = PathBuf::from(format!("{}/index", self.1));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
self.0.create(sid)
}
pub(crate) fn get_index_page(&self) -> Result<FileLockEntry<'a>> {
let path = PathBuf::from(format!("{}/index", self.1));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
self.0
.get(sid)
.map_err(Error::from)?
.ok_or_else(|| Error::from(err_msg("Missing index")))
}
pub fn get_entry<EN: AsRef<str>>(&self, entry_name: EN) -> Result<Option<FileLockEntry<'a>>> {
let path = PathBuf::from(format!("{}/{}", self.1, entry_name.as_ref()));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
self.0.get(sid)
}
pub fn create_entry<EN: AsRef<str>>(&self, entry_name: EN) -> Result<FileLockEntry<'a>> {
let path = PathBuf::from(format!("{}/{}", self.1, entry_name.as_ref()));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
let mut index = self
.get_entry("index")?
.ok_or_else(|| err_msg("Missing index page"))?;
let mut entry = self.0.create(sid)?;
entry.add_internal_link(&mut index).map(|_| entry)
}
pub fn retrieve_entry<EN: AsRef<str>>(&self, entry_name: EN) -> Result<FileLockEntry<'a>> {
let path = PathBuf::from(format!("{}/{}", self.1, entry_name.as_ref()));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
let mut index = self
.get_entry("index")?
.ok_or_else(|| err_msg("Missing index page"))?;
let mut entry = self.0.retrieve(sid)?;
entry.add_internal_link(&mut index).map(|_| entry)
}
pub fn all_ids(&self) -> Result<WikiIdIterator> {
let filter = IdIsInWikiFilter(self.1);
Ok(WikiIdIterator(self.0.entries()?.without_store().with_store(self.0), filter))
}
pub fn delete_entry<EN: AsRef<str>>(&self, entry_name: EN) -> Result<()> {
let path = PathBuf::from(format!("{}/{}", self.1, entry_name.as_ref()));
let sid = ::module_path::ModuleEntryPath::new(path).into_storeid()?;
self.0.delete(sid)
}
}
pub struct WikiIdIterator<'a>(StoreIdIteratorWithStore<'a>, IdIsInWikiFilter<'a>);
impl<'a> Iterator for WikiIdIterator<'a> {
type Item = Result<StoreId>;
fn next(&mut self) -> Option<Self::Item> {
while let Some(next) = self.0.next() {
match next {
Ok(next) => if self.1.filter(&next) {
return Some(Ok(next));
},
Err(e) => return Some(Err(e)),
}
}
None
}
}
pub struct IdIsInWikiFilter<'a>(&'a str);
impl<'a> IdIsInWikiFilter<'a> {
pub fn new(wiki_name: &'a str) -> Self {
IdIsInWikiFilter(wiki_name)
}
}
impl<'a> Filter<StoreId> for IdIsInWikiFilter<'a> {
fn filter(&self, id: &StoreId) -> bool {
id.is_in_collection(&["wiki", &self.0])
}
}
impl<'a> Filter<Entry> for IdIsInWikiFilter<'a> {
fn filter(&self, e: &Entry) -> bool {
e.get_location().is_in_collection(&["wiki", &self.0])
}
}