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|
use super::*;
use crate::mailbox::backends::FolderHash;
use std::collections::BTreeMap;
use std::fs;
use std::io;
use std::ops::{Deref, DerefMut};
use fnv::FnvHashMap;
#[derive(Debug, Clone, Deserialize, Default, Serialize)]
pub struct Collection {
pub envelopes: FnvHashMap<EnvelopeHash, Envelope>,
message_ids: FnvHashMap<Vec<u8>, EnvelopeHash>,
date_index: BTreeMap<UnixTimestamp, EnvelopeHash>,
subject_index: Option<BTreeMap<String, EnvelopeHash>>,
pub threads: FnvHashMap<FolderHash, Threads>,
sent_folder: Option<FolderHash>,
}
impl Drop for Collection {
fn drop(&mut self) {
let cache_dir: xdg::BaseDirectories =
xdg::BaseDirectories::with_profile("meli", "threads".to_string()).unwrap();
if let Ok(cached) = cache_dir.place_cache_file("threads") {
/* place result in cache directory */
let f = match fs::File::create(cached) {
Ok(f) => f,
Err(e) => {
panic!("{}", e);
}
};
let writer = io::BufWriter::new(f);
bincode::serialize_into(writer, &self.threads).unwrap();
}
}
}
impl Collection {
pub fn new(envelopes: FnvHashMap<EnvelopeHash, Envelope>) -> Collection {
let date_index = BTreeMap::new();
let subject_index = None;
let message_ids = FnvHashMap::with_capacity_and_hasher(2048, Default::default());
/* Scrap caching for now. When a cached threads file is loaded, we must remove/rehash the
* thread nodes that shouldn't exist anymore (e.g. because their file moved from /new to
* /cur, or it was deleted).
*/
let threads = FnvHashMap::with_capacity_and_hasher(16, Default::default());
Collection {
envelopes,
date_index,
message_ids,
subject_index,
threads,
sent_folder: None,
}
}
pub fn len(&self) -> usize {
self.envelopes.len()
}
pub fn is_empty(&self) -> bool {
self.envelopes.is_empty()
}
pub fn remove(&mut self, envelope_hash: EnvelopeHash, folder_hash: FolderHash) {
debug!("DEBUG: Removing {}", envelope_hash);
self.envelopes.remove(&envelope_hash);
self.threads
.entry(folder_hash)
.or_default()
.remove(envelope_hash, &mut self.envelopes);
}
pub fn rename(
&mut self,
old_hash: EnvelopeHash,
new_hash: EnvelopeHash,
folder_hash: FolderHash,
) {
if !self.envelopes.contains_key(&old_hash) {
return;
}
let mut env = self.envelopes.remove(&old_hash).unwrap();
env.set_hash(new_hash);
self.message_ids
.insert(env.message_id().raw().to_vec(), new_hash);
self.envelopes.insert(new_hash, env);
{
if self
.threads
.entry(folder_hash)
.or_default()
.update_envelope(old_hash, new_hash, &self.envelopes)
.is_ok()
{
return;
}
}
/* envelope is not in threads, so insert it */
let env = self.envelopes.entry(new_hash).or_default() as *mut Envelope;
unsafe {
self.threads
.entry(folder_hash)
.or_default()
.insert(&mut (*env), &self.envelopes);
}
}
pub fn merge(
&mut self,
mut envelopes: FnvHashMap<EnvelopeHash, Envelope>,
folder_hash: FolderHash,
mailbox: &mut Result<Mailbox>,
sent_folder: Option<FolderHash>,
) {
self.sent_folder = sent_folder;
envelopes.retain(|&h, e| {
if self.message_ids.contains_key(e.message_id().raw()) {
/* skip duplicates until a better way to handle them is found. */
//FIXME
if let Ok(mailbox) = mailbox.as_mut() {
mailbox.remove(h);
}
false
} else {
self.message_ids.insert(e.message_id().raw().to_vec(), h);
true
}
});
let mut threads = Threads::new(&mut envelopes);
for (h, e) in envelopes {
self.envelopes.insert(h, e);
}
for (t_fh, t) in self.threads.iter_mut() {
if self.sent_folder.map(|f| f == folder_hash).unwrap_or(false) {
let mut ordered_hash_set = threads
.hash_set
.iter()
.cloned()
.collect::<Vec<EnvelopeHash>>();
unsafe {
/* FIXME NLL
* Sorting ordered_hash_set triggers a borrow which should not happen with NLL
* probably */
let envelopes = &self.envelopes as *const FnvHashMap<EnvelopeHash, Envelope>;
ordered_hash_set.sort_by(|a, b| {
(*envelopes)[a]
.date()
.partial_cmp(&(*(envelopes))[b].date())
.unwrap()
});
}
for h in ordered_hash_set {
t.insert_reply(&mut self.envelopes, h);
}
continue;
}
if self.sent_folder.map(|f| f == *t_fh).unwrap_or(false) {
let mut ordered_hash_set =
t.hash_set.iter().cloned().collect::<Vec<EnvelopeHash>>();
unsafe {
/* FIXME NLL
* Sorting ordered_hash_set triggers a borrow which should not happen with NLL
* probably */
let envelopes = &self.envelopes as *const FnvHashMap<EnvelopeHash, Envelope>;
ordered_hash_set.sort_by(|a, b| {
(*envelopes)[a]
.date()
.partial_cmp(&(*(envelopes))[b].date())
.unwrap()
});
}
for h in ordered_hash_set {
threads.insert_reply(&mut self.envelopes, h);
}
}
}
self.threads.insert(folder_hash, threads);
}
pub fn update(&mut self, old_hash: EnvelopeHash, envelope: Envelope, folder_hash: FolderHash) {
self.envelopes.remove(&old_hash);
let new_hash = envelope.hash();
self.message_ids
.insert(envelope.message_id().raw().to_vec(), new_hash);
self.envelopes.insert(new_hash, envelope);
if self.sent_folder.map(|f| f == folder_hash).unwrap_or(false) {
for (_, t) in self.threads.iter_mut() {
t.update_envelope(old_hash, new_hash, &self.envelopes);
}
}
{
if self
.threads
.entry(folder_hash)
.or_default()
.update_envelope(old_hash, new_hash, &self.envelopes)
.is_ok()
{
return;
}
}
/* envelope is not in threads, so insert it */
let env = self.envelopes.entry(new_hash).or_default() as *mut Envelope;
unsafe {
self.threads
.entry(folder_hash)
.or_default()
.insert(&mut (*env), &self.envelopes);
}
}
pub fn insert(&mut self, envelope: Envelope, folder_hash: FolderHash) -> &Envelope {
let hash = envelope.hash();
self.message_ids
.insert(envelope.message_id().raw().to_vec(), hash);
self.envelopes.insert(hash, envelope);
self.threads
.entry(folder_hash)
.or_default()
.insert_reply(&mut self.envelopes, hash);
&self.envelopes[&hash]
}
pub fn insert_reply(&mut self, env_hash: EnvelopeHash) {
for (_, t) in self.threads.iter_mut() {
t.insert_reply(&mut self.envelopes, env_hash);
}
}
}
impl Deref for Collection {
type Target = FnvHashMap<EnvelopeHash, Envelope>;
fn deref(&self) -> &FnvHashMap<EnvelopeHash, Envelope> {</
|
