refactor: Split the users service into several modules

Also resolvers several lints, including needless async on create_user

src/service/users/profile.rs

@@ -0,0 +1,94 @@
+use conduwuit::utils::{ReadyExt, stream::TryIgnore};
+use database::{Deserialized, Ignore, Interfix, Json};
+use futures::{Stream, StreamExt};
+use ruma::{OwnedMxcUri, UserId};
+
+impl super::Service {
+	/// Returns the displayname of a user on this homeserver.
+	pub async fn displayname(&self, user_id: &UserId) -> conduwuit::Result<String> {
+		self.db.userid_displayname.get(user_id).await.deserialized()
+	}
+
+	/// Sets a new displayname or removes it if displayname is None. You still
+	/// need to notify all rooms of this change.
+	pub fn set_displayname(&self, user_id: &UserId, displayname: Option<String>) {
+		if let Some(displayname) = displayname {
+			self.db.userid_displayname.insert(user_id, displayname);
+		} else {
+			self.db.userid_displayname.remove(user_id);
+		}
+	}
+
+	/// Get the `avatar_url` of a user.
+	pub async fn avatar_url(&self, user_id: &UserId) -> conduwuit::Result<OwnedMxcUri> {
+		self.db.userid_avatarurl.get(user_id).await.deserialized()
+	}
+
+	/// Sets a new avatar_url or removes it if avatar_url is None.
+	pub fn set_avatar_url(&self, user_id: &UserId, avatar_url: Option<OwnedMxcUri>) {
+		match avatar_url {
+			| Some(avatar_url) => {
+				self.db.userid_avatarurl.insert(user_id, &avatar_url);
+			},
+			| _ => {
+				self.db.userid_avatarurl.remove(user_id);
+			},
+		}
+	}
+
+	/// Gets a specific user profile key
+	pub async fn profile_key(
+		&self,
+		user_id: &UserId,
+		profile_key: &str,
+	) -> conduwuit::Result<serde_json::Value> {
+		let key = (user_id, profile_key);
+		self.db
+			.useridprofilekey_value
+			.qry(&key)
+			.await
+			.and_then(|handle| serde_json::from_slice(&handle).map_err(Into::into))
+	}
+
+	/// Gets all the user's profile keys and values in an iterator
+	pub fn all_profile_keys<'a>(
+		&'a self,
+		user_id: &'a UserId,
+	) -> impl Stream<Item = (String, serde_json::Value)> + 'a + Send {
+		type KeyVal<'a> = ((Ignore, String), &'a [u8]);
+
+		let prefix = (user_id, Interfix);
+		self.db
+			.useridprofilekey_value
+			.stream_prefix(&prefix)
+			.ignore_err()
+			.map(|((_, key), value): KeyVal<'_>| Ok((key, serde_json::from_slice(value)?)))
+			.ignore_err()
+	}
+
+	/// Sets a new profile key value, removes the key if value is None
+	pub fn set_profile_key(
+		&self,
+		user_id: &UserId,
+		profile_key: &str,
+		profile_key_value: Option<serde_json::Value>,
+	) {
+		let key = (user_id, profile_key);
+
+		if let Some(value) = profile_key_value {
+			self.db.useridprofilekey_value.put(key, Json(value));
+		} else {
+			self.db.useridprofilekey_value.del(key);
+		}
+	}
+
+	/// Clears all profile data for a user, including display name and avatar
+	/// url.
+	pub async fn clear_profile(&self, user_id: &UserId) {
+		self.set_displayname(user_id, None);
+		self.set_avatar_url(user_id, None);
+		self.all_profile_keys(user_id)
+			.ready_for_each(|(key, _)| self.set_profile_key(user_id, &key, None))
+			.await;
+	}
+}