Files
coop/desktop/src/panels/messaging_relays.rs

375 lines
12 KiB
Rust

use std::collections::HashSet;
use std::time::Duration;
use anyhow::{Context as AnyhowContext, Error, anyhow};
use gpui::prelude::FluentBuilder;
use gpui::{
AnyElement, App, AppContext, Context, Entity, EventEmitter, FocusHandle, Focusable,
InteractiveElement, IntoElement, ParentElement, Render, SharedString, Styled, Subscription,
Task, TextAlign, Window, div, rems,
};
use nostr_sdk::prelude::*;
use smallvec::{SmallVec, smallvec};
use state::NostrRegistry;
use theme::ActiveTheme;
use ui::button::{Button, ButtonVariants};
use ui::dock::{Panel, PanelEvent};
use ui::input::{Input, InputEvent, InputState};
use ui::{Disableable, IconName, Sizable, StyledExt, WindowExtension, divider, h_flex, v_flex};
const MSG: &str = "Messaging Relays are relays that hosted all your messages. \
Other users will find your relays and send messages to it.";
pub fn init(window: &mut Window, cx: &mut App) -> Entity<MessagingRelayPanel> {
cx.new(|cx| MessagingRelayPanel::new(window, cx))
}
#[derive(Debug)]
pub struct MessagingRelayPanel {
name: SharedString,
focus_handle: FocusHandle,
/// Relay URL input
input: Entity<InputState>,
/// Whether the panel is updating
updating: bool,
/// Error message
error: Option<SharedString>,
/// All relays
relays: HashSet<RelayUrl>,
/// Event subscriptions
_subscriptions: SmallVec<[Subscription; 1]>,
/// Background tasks
tasks: Vec<Task<Result<(), Error>>>,
}
impl MessagingRelayPanel {
pub fn new(window: &mut Window, cx: &mut Context<Self>) -> Self {
let input = cx.new(|cx| InputState::new(window, cx).placeholder("wss://example.com"));
let mut subscriptions = smallvec![];
subscriptions.push(
// Subscribe to user's input events
cx.subscribe_in(&input, window, move |this, _input, event, window, cx| {
if let InputEvent::PressEnter { .. } = event {
this.add(window, cx);
}
}),
);
// Run at the end of current cycle
cx.defer_in(window, |this, window, cx| {
this.load(window, cx);
});
Self {
name: "Update Messaging Relays".into(),
focus_handle: cx.focus_handle(),
input,
updating: false,
relays: HashSet::new(),
error: None,
_subscriptions: subscriptions,
tasks: vec![],
}
}
fn load(&mut self, window: &mut Window, cx: &mut Context<Self>) {
let nostr = NostrRegistry::global(cx);
let client = nostr.read(cx).client();
let task: Task<Result<Vec<RelayUrl>, Error>> = cx.background_spawn(async move {
let signer = client.signer().context("Signer not found")?;
let public_key = signer.get_public_key().await?;
let filter = Filter::new()
.kind(Kind::InboxRelays)
.author(public_key)
.limit(1);
if let Some(event) = client.database().query(filter).await?.first_owned() {
Ok(nip17::extract_owned_relay_list(event).collect())
} else {
Err(anyhow!("Not found."))
}
});
self.tasks.push(cx.spawn_in(window, async move |this, cx| {
let relays = task.await?;
// Update state
this.update(cx, |this, cx| {
this.relays.extend(relays);
cx.notify();
})?;
Ok(())
}));
}
fn add(&mut self, window: &mut Window, cx: &mut Context<Self>) {
let value = self.input.read(cx).value().to_string();
if !value.starts_with("ws") {
self.set_error("Relay URl is invalid", window, cx);
return;
}
if let Ok(url) = RelayUrl::parse(&value) {
if self.relays.insert(url) {
self.input.update(cx, |this, cx| {
this.set_value("", window, cx);
});
cx.notify();
}
} else {
self.set_error("Relay URl is invalid", window, cx);
}
}
fn remove(&mut self, url: &RelayUrl, cx: &mut Context<Self>) {
self.relays.remove(url);
cx.notify();
}
fn set_error<E>(&mut self, error: E, window: &mut Window, cx: &mut Context<Self>)
where
E: Into<SharedString>,
{
self.error = Some(error.into());
cx.notify();
self.tasks.push(cx.spawn_in(window, async move |this, cx| {
cx.background_executor().timer(Duration::from_secs(2)).await;
// Clear the error message after a delay
this.update(cx, |this, cx| {
this.error = None;
cx.notify();
})?;
Ok(())
}));
}
fn set_updating(&mut self, updating: bool, cx: &mut Context<Self>) {
self.updating = updating;
cx.notify();
}
pub fn set_relays(&mut self, window: &mut Window, cx: &mut Context<Self>) {
if self.relays.is_empty() {
self.set_error("You need to add at least 1 relay", window, cx);
return;
};
let nostr = NostrRegistry::global(cx);
let client = nostr.read(cx).client();
// Construct event tags
let tags: Vec<Tag> = self
.relays
.iter()
.map(|relay| Tag::relay(relay.clone()))
.collect();
// Set updating state
self.set_updating(true, cx);
let task: Task<Result<(), Error>> = cx.background_spawn(async move {
// Construct nip17 event builder
let builder = EventBuilder::new(Kind::InboxRelays, "").tags(tags);
let event = client.sign_event_builder(builder).await?;
// Set messaging relays
client.send_event(&event).to_nip65().await?;
Ok(())
});
self.tasks.push(cx.spawn_in(window, async move |this, cx| {
match task.await {
Ok(_) => {
this.update_in(cx, |this, window, cx| {
this.set_updating(false, cx);
this.load(window, cx);
window.push_notification("Update successful", cx);
})?;
}
Err(e) => {
this.update_in(cx, |this, window, cx| {
this.set_updating(false, cx);
this.set_error(e.to_string(), window, cx);
})?;
}
};
Ok(())
}));
}
fn render_list_items(&mut self, cx: &mut Context<Self>) -> Vec<impl IntoElement> {
let mut items = Vec::new();
for url in self.relays.iter() {
items.push(
h_flex()
.id(SharedString::from(url.to_string()))
.group("")
.flex_1()
.w_full()
.h_8()
.px_2()
.justify_between()
.rounded(cx.theme().radius)
.bg(cx.theme().secondary_background)
.text_color(cx.theme().secondary_foreground)
.child(div().text_sm().child(SharedString::from(url.to_string())))
.child(
Button::new("remove_{ix}")
.icon(IconName::Close)
.xsmall()
.ghost()
.invisible()
.group_hover("", |this| this.visible())
.on_click({
let url = url.to_owned();
cx.listener(move |this, _ev, _window, cx| {
this.remove(&url, cx);
})
}),
),
)
}
items
}
fn render_empty(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
h_flex()
.h_20()
.justify_center()
.border_2()
.border_dashed()
.border_color(cx.theme().border)
.rounded(cx.theme().radius_lg)
.text_sm()
.text_align(TextAlign::Center)
.child(SharedString::from("Please add some relays."))
}
}
impl Panel for MessagingRelayPanel {
fn panel_id(&self) -> SharedString {
self.name.clone()
}
fn title(&self, _cx: &App) -> AnyElement {
self.name.clone().into_any_element()
}
}
impl EventEmitter<PanelEvent> for MessagingRelayPanel {}
impl Focusable for MessagingRelayPanel {
fn focus_handle(&self, _: &App) -> gpui::FocusHandle {
self.focus_handle.clone()
}
}
impl Render for MessagingRelayPanel {
fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
v_flex()
.p_3()
.gap_3()
.w_full()
.child(
div()
.text_xs()
.text_color(cx.theme().text_muted)
.child(SharedString::from(MSG)),
)
.child(divider(cx))
.child(
v_flex()
.gap_2()
.flex_1()
.w_full()
.text_sm()
.child(
div()
.text_xs()
.font_semibold()
.text_color(cx.theme().text_muted)
.child(SharedString::from("Relays:")),
)
.child(
v_flex()
.gap_1()
.child(
h_flex()
.gap_1()
.w_full()
.child(
Input::new(&self.input)
.small()
.bordered(false)
.cleanable(true),
)
.child(
Button::new("add")
.icon(IconName::Plus)
.tooltip("Add relay")
.ghost()
.size(rems(2.))
.on_click(cx.listener(move |this, _, window, cx| {
this.add(window, cx);
})),
),
)
.when_some(self.error.as_ref(), |this, error| {
this.child(
div()
.italic()
.text_xs()
.text_color(cx.theme().text_danger)
.child(error.clone()),
)
}),
)
.map(|this| {
if self.relays.is_empty() {
this.child(self.render_empty(window, cx))
} else {
this.child(
v_flex()
.gap_1()
.flex_1()
.w_full()
.children(self.render_list_items(cx)),
)
}
})
.child(
Button::new("submit")
.icon(IconName::CheckCircle)
.label("Update")
.primary()
.small()
.font_semibold()
.loading(self.updating)
.disabled(self.updating)
.on_click(cx.listener(move |this, _ev, window, cx| {
this.set_relays(window, cx);
})),
),
)
}
}