From 69932adb7e7153fd4469dd0edd308f203fc3e01a Mon Sep 17 00:00:00 2001
From: Benjamin Bouvier <public@benj.me>
Date: Thu, 22 Jun 2023 15:25:59 +0200
Subject: [PATCH] chore: remove unreachable UI notifications module

Remnant from a bad merge/renaming.

Signed-off-by: Benjamin Bouvier <public@benj.me>
---
 crates/matrix-sdk-ui/src/notifications/mod.rs | 117 ------------------
 1 file changed, 117 deletions(-)
 delete mode 100644 crates/matrix-sdk-ui/src/notifications/mod.rs

diff --git a/crates/matrix-sdk-ui/src/notifications/mod.rs b/crates/matrix-sdk-ui/src/notifications/mod.rs
deleted file mode 100644
index 6ede78ad2..000000000
--- a/crates/matrix-sdk-ui/src/notifications/mod.rs
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright 2023 The Matrix.org Foundation C.I.C.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for that specific language governing permissions and
-// limitations under the License.
-
-//! Notification API.
-//!
-//! The notification API is a high-level helper that is designed to take care of
-//! handling the synchronization of notifications, be they received within the
-//! app or within a dedicated notification process (e.g. the [NSE] process on
-//! iOS devices).
-//!
-//! Under the hood, this uses a sliding sync instance configured with no lists,
-//! but that enables the e2ee and to-device extensions, so that it can both
-//! handle encryption and manage encryption keys; that's sufficient to decrypt
-//! messages received in the notification processes.
-//!
-//! As this may be used across different processes, this also makes sure that
-//! there's only one process writing to the databases holding encryption
-//! information. TODO as of 2023-06-06, this hasn't been done yet.
-//!
-//! [NSE]: https://developer.apple.com/documentation/usernotifications/unnotificationserviceextension
-
-use async_stream::stream;
-use futures_core::stream::Stream;
-use futures_util::{pin_mut, StreamExt};
-use matrix_sdk::{Client, SlidingSync};
-use ruma::{api::client::sync::sync_events::v4, assign};
-use tracing::error;
-
-/// High-level helper for synchronizing notifications using sliding sync.
-///
-/// See the module's documentation for more details.
-#[derive(Clone)]
-pub struct NotificationSync {
-    sliding_sync: SlidingSync,
-}
-
-impl NotificationSync {
-    /// Creates a new instance of a `NotificationSync`.
-    ///
-    /// This will create and manage an instance of [`matrix_sdk::SlidingSync`].
-    /// The `id` is used as the identifier of that instance, as such make
-    /// sure to not reuse a name used by another Sliding Sync instance, at
-    /// the risk of causing problems.
-    pub async fn new(id: impl Into<String>, client: Client) -> Result<Self, Error> {
-        let sliding_sync = client
-            .sliding_sync(id)?
-            .enable_caching()?
-            .with_to_device_extension(
-                assign!(v4::ToDeviceConfig::default(), { enabled: Some(true)}),
-            )
-            .with_e2ee_extension(assign!(v4::E2EEConfig::default(), { enabled: Some(true)}))
-            .build()
-            .await?;
-
-        Ok(Self { sliding_sync })
-    }
-
-    /// Start synchronization of notifications.
-    ///
-    /// This should be regularly polled, so as to ensure that the notifications
-    /// are sync'd.
-    pub fn sync(&self) -> impl Stream<Item = Result<(), Error>> + '_ {
-        stream!({
-            let sync = self.sliding_sync.sync();
-
-            pin_mut!(sync);
-
-            loop {
-                match sync.next().await {
-                    Some(Ok(update_summary)) => {
-                        // This API is only concerned with the e2ee and to-device extensions.
-                        // Warn if anything weird has been received from the proxy.
-                        if !update_summary.lists.is_empty() || !update_summary.rooms.is_empty() {
-                            yield Err(Error::UnexpectedNonEmptyListsOrRooms);
-                        } else {
-                            // Cool cool, let's do it again.
-                            yield Ok(());
-                        }
-
-                        continue;
-                    }
-
-                    Some(Err(err)) => {
-                        yield Err(err.into());
-
-                        break;
-                    }
-
-                    None => {
-                        break;
-                    }
-                }
-            }
-        })
-    }
-}
-
-/// Errors for the [`NotificationSync`].
-#[derive(Debug, thiserror::Error)]
-pub enum Error {
-    #[error("Unexpected rooms or lists in the sliding sync response.")]
-    UnexpectedNonEmptyListsOrRooms,
-
-    #[error("Something wrong happened in sliding sync: {0:#}")]
-    SlidingSyncError(#[from] matrix_sdk::Error),
-}