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|
use std::sync::Arc;
use anyhow::Result;
use iced::Application;
use iced::Column;
use iced::Container;
use iced::Length;
use iced::Row;
use iced::Scrollable;
use iced::TextInput;
use iced::scrollable;
use iced::text_input;
use distrox_lib::profile::Profile;
use tokio::sync::RwLock;
use crate::timeline::Timeline;
use crate::timeline::PostLoadingRecipe;
mod message;
pub use message::Message;
mod handler;
use crate::gossip::GossipRecipe;
#[derive(Debug)]
pub(crate) enum Distrox {
Loading {
gossip_subscription_recv: RwLock<tokio::sync::oneshot::Receiver<GossipRecipe>>,
},
Loaded {
profile: Arc<RwLock<Profile>>,
gossip_subscription_recv: RwLock<tokio::sync::oneshot::Receiver<GossipRecipe>>,
scroll: scrollable::State,
input: text_input::State,
input_value: String,
timeline: Timeline,
log_visible: bool,
log: std::collections::VecDeque<String>,
},
FailedToStart,
}
impl Application for Distrox {
type Executor = iced::executor::Default; // tokio
type Message = Message;
type Flags = String;
fn new(name: String) -> (Self, iced::Command<Self::Message>) {
let (gossip_subscription_sender, gossip_subscription_recv) = tokio::sync::oneshot::channel();
(
Distrox::Loading {
gossip_subscription_recv: RwLock::new(gossip_subscription_recv),
},
iced::Command::perform(async move {
let profile = match Profile::load(&name).await {
Err(e) => return Message::FailedToLoad(e.to_string()),
Ok(instance) => Arc::new(RwLock::new(instance)),
};
if let Err(e) = profile
.read()
.await
.client()
.pubsub_subscribe("distrox".to_string())
.await
.map_err(anyhow::Error::from)
.map(|stream| {
log::trace!("Subscription to 'distrox' pubsub channel worked");
GossipRecipe::new(profile.clone(), stream)
})
.and_then(|s| gossip_subscription_sender.send(s).map_err(|_| anyhow::anyhow!("Failed to initialize gossipping module")))
{
log::error!("Failed to load gossip recipe");
return Message::FailedToLoad(e.to_string())
}
Message::Loaded(profile)
}, |m: Message| -> Message { m })
)
}
fn title(&self) -> String {
String::from("distrox")
}
fn update(&mut self, message: Self::Message) -> iced::Command<Self::Message> {
handler::handle_message(self, message)
}
fn view(&mut self) -> iced::Element<Self::Message> {
match self {
Distrox::Loading { .. } => {
let text = iced::Text::new("Loading");
let content = Column::new()
.spacing(20)
.push(text);
Container::new(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
}
Distrox::Loaded { input, input_value, timeline, scroll, log_visible, log, .. } => {
let left_column = Column::new()
.into();
let mid_column = Column::new()
.push({
let input = TextInput::new(
input,
"What do you want to tell the world?",
input_value,
Message::InputChanged,
)
.padding(15)
.size(12)
.on_submit(Message::CreatePost);
let timeline = timeline.view();
Scrollable::new(scroll)
.padding(40)
.push(input)
.push(timeline)
})
.into();
let right_column = Column::new()
.into();
let content = Row::with_children(vec![
left_column,
mid_column,
right_column
])
.spacing(20)
.height(Length::Fill)
.width(Length::Fill);
let content = Column::new()
.height(Length::Fill)
.width(Length::Fill)
.push(content);
if *log_visible {
let log = Column::with_children({
log.iter()
.map(iced::Text::new)
.map(|txt| txt.size(8))
.map(iced::Element::from)
.collect()
});
content.push(log)
} else {
content
}.into()
}
Distrox::FailedToStart => {
unimplemented!()
}
}
}
fn subscription(&self) -> iced::Subscription<Self::Message> {
let post_loading_subs = match self {
Distrox::Loaded { profile, .. } => {
let profile = match profile.try_read() {
Err(_) => return iced::Subscription::none(),
Ok(p) => p,
};
match profile.head() {
None => iced::Subscription::none(),
Some(head) => {
iced::Subscription::from_recipe({
PostLoadingRecipe::new(profile.client().clone(), head.clone())
})
}
}
}
_ => iced::Subscription::none(),
};
let keyboard_subs = {
use iced_native::event::Event;
iced_native::subscription::events_with(|event, _| {
match event {
Event::Keyboard(iced_native::keyboard::Event::KeyPressed { key_code, .. }) => {
if key_code == iced_native::keyboard::KeyCode::F11 {
Some(Message::ToggleLog)
} else {
None
}
},
_ => None,
}
})
};
let gossip_sub = match self {
Distrox::Loaded { gossip_subscription_recv, .. } => {
match gossip_subscription_recv.try_write() {
Err(_) => None,
Ok(mut sub) => sub.try_recv()
.ok()
.map(|sub| iced::Subscription::from_recipe(sub)),
}
},
_ => None,
};
let gossip_sending_sub = {
iced::time::every(std::time::Duration::from_secs(5))
.map(|_| Message::PublishGossipAboutMe)
};
let mut subscriptions = vec![
post_loading_subs,
keyboard_subs,
gossip_sending_sub,
];
if let Some(gossip_sub) = gossip_sub {
subscriptions.push(gossip_sub);
}
iced::Subscription::batch(subscriptions)
}
}
pub fn run(name: String) -> Result<()> {
let settings = iced::Settings {
window: iced::window::Settings {
resizable: true,
decorations: true,
transparent: false,
always_on_top: false,
..iced::window::Settings::default()
},
flags: name,
exit_on_close_request: true,
..iced::Settings::default()
};
Distrox::run(settings).map_err(anyhow::Error::from)
}
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