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// This file is part of GAnarchy - decentralized development hub
// Copyright (C) 2021 Soni L.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
use std::error;
use std::sync::Arc;
use std::sync::Mutex;
use std::sync::RwLock;
use std::time::Duration;
use impl_trait::impl_trait;
use super::DataSourceBase;
use super::DataSource;
use super::effective::EffectiveKind;
//use super::Kind;
use super::kinds::{InstanceTitle, InstanceBaseUrl, RepoListUrl, ProjectFork};
//use super::OverridableKind;
/// Stores multiple DataSource capable of ProjectFork
#[derive(Default)]
pub struct RepoListManager {
repos: Vec<Box<dyn DataSource<EffectiveKind<ProjectFork>> + Send + Sync>>,
durations: Vec<Duration>,
valid: usize,
}
/// Stores multiple DataSource capable of InstanceTitle, InstanceBaseUrl and
/// RepoListUrl
#[derive(Default)]
pub struct ConfigManager {
// conceptually the actual objects
bases: Vec<Arc<RwLock<dyn DataSourceBase + Send + Sync>>>,
// conceptually just views of the above objects
titles: Vec<Option<Arc<RwLock<dyn DataSource<InstanceTitle> + Send + Sync>>>>,
urls: Vec<Option<Arc<RwLock<dyn DataSource<InstanceBaseUrl> + Send + Sync>>>>,
repolists: Vec<Option<Arc<RwLock<dyn DataSource<RepoListUrl> + Send + Sync>>>>,
durations: Vec<Duration>,
// add_source can be called after update.
valid: usize,
}
impl_trait! {
impl ConfigManager {
/// Creates a new `ConfigManager`.
pub fn new() -> Self {
Default::default()
}
/// Adds the given combined `DataSource` to this `ConfigManager`.
pub fn add_source<T>(&mut self, source: T)
where
T: DataSource<InstanceTitle>,
T: DataSource<InstanceBaseUrl>,
T: DataSource<RepoListUrl>,
T: Send + Sync + 'static,
{
let arc = Arc::new(RwLock::new(source));
self.bases.push(arc.clone());
self.titles.push(Some(arc.clone()));
self.urls.push(Some(arc.clone()));
self.repolists.push(Some(arc));
}
impl trait DataSourceBase {
/// Updates the contained `DataSource`s, and returns the shortest
/// duration for the next update.
///
/// # Errors
///
/// Returns an error if any `DataSource` returns an error. Always
/// updates all `DataSource`s.
fn update(&mut self) -> (
Duration,
Result<(), Box<dyn error::Error + Send + Sync + 'static>>,
) {
todo!()
}
/// Returns whether this data source contains any (valid) data.
fn exists(&self) -> bool {
todo!()
}
}
}
}
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