163 lines
5.1 KiB
Rust
163 lines
5.1 KiB
Rust
/*
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* meli - accounts module.
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*
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* Copyright 2017 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*!
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* Account management from user configuration.
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*/
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use async::*;
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use conf::AccountSettings;
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use mailbox::backends::{Backends, RefreshEventConsumer};
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use mailbox::*;
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use std::ops::{Index, IndexMut};
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use std::result;
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pub type Worker = Option<Async<Result<Vec<Envelope>>>>;
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#[derive(Debug)]
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pub struct Account {
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name: String,
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folders: Vec<Option<Result<Mailbox>>>,
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pub workers: Vec<Worker>,
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sent_folder: Option<usize>,
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pub settings: AccountSettings,
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pub runtime_settings: AccountSettings,
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pub backend: Box<MailBackend>,
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}
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impl Account {
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pub fn new(name: String, settings: AccountSettings, map: &Backends) -> Self {
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let backend = map.get(settings.format())(&settings);
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let ref_folders: Vec<Folder> = backend.folders();
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let mut folders: Vec<Option<Result<Mailbox>>> = Vec::with_capacity(ref_folders.len());
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let mut workers: Vec<Worker> = Vec::new();
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let sent_folder = ref_folders
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.iter()
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.position(|x: &Folder| x.name() == settings.sent_folder);
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for f in ref_folders {
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folders.push(None);
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let mut handle = backend.get(&f);
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workers.push(Some(handle));
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}
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Account {
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name: name,
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folders: folders,
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workers: workers,
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sent_folder: sent_folder,
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settings: settings.clone(),
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runtime_settings: settings,
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backend: backend,
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}
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}
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pub fn watch(&self, r: RefreshEventConsumer) -> () {
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self.backend.watch(r).unwrap();
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}
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/* This doesn't represent the number of correctly parsed mailboxes though */
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pub fn len(&self) -> usize {
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self.folders.len()
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}
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pub fn list_folders(&self) -> Vec<Folder> {
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self.backend.folders()
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}
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pub fn name(&self) -> &str {
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&self.name
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}
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pub fn workers(&mut self) -> &mut Vec<Worker> {
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&mut self.workers
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}
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fn load_mailbox(&mut self, index: usize, envelopes: Result<Vec<Envelope>>) -> () {
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let folders = self.backend.folders();
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let folder = &folders[index];
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if self.sent_folder.is_some() {
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let id = self.sent_folder.unwrap();
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if id == index {
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self.folders[index] = Some(Mailbox::new(folder, &None, envelopes));
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} else {
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let (sent, cur) = {
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let ptr = self.folders.as_mut_ptr();
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unsafe {
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use std::slice::from_raw_parts_mut;
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(
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from_raw_parts_mut(ptr.offset(id as isize), id + 1),
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from_raw_parts_mut(ptr.offset(index as isize), index + 1),
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)
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}
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};
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let sent_path = &folders[id];
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if sent[0].is_none() {
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sent[0] = Some(Mailbox::new(sent_path, &None, envelopes.clone()));
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}
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cur[0] = Some(Mailbox::new(folder, &sent[0], envelopes));
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}
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} else {
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self.folders[index] = Some(Mailbox::new(folder, &None, envelopes));
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};
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}
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pub fn status(&mut self, index: usize) -> result::Result<(), usize> {
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match self.workers[index].as_mut() {
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None => {
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return Ok(());
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}
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Some(ref mut w) => match w.poll() {
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Ok(AsyncStatus::NoUpdate) => {
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return Err(0);
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}
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Ok(AsyncStatus::Finished) => {}
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Ok(AsyncStatus::ProgressReport(n)) => {
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return Err(n);
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}
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a => {
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eprintln!("{:?}", a);
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return Err(0);
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}
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},
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};
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let m = self.workers[index].take().unwrap().extract();
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self.load_mailbox(index, m);
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self.workers[index] = None;
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Ok(())
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}
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}
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impl Index<usize> for Account {
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type Output = Result<Mailbox>;
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fn index(&self, index: usize) -> &Result<Mailbox> {
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&self.folders[index]
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.as_ref()
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.expect("BUG: Requested mailbox that is not yet available.")
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}
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}
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/// Will panic if mailbox hasn't loaded, ask `status()` first.
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impl IndexMut<usize> for Account {
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fn index_mut(&mut self, index: usize) -> &mut Result<Mailbox> {
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self.folders[index]
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.as_mut()
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.expect("BUG: Requested mailbox that is not yet available.")
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}
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}
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