2020-11-02 17:08:38 +00:00
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/*
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Copyright 2019 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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/// A structure that parses Matrix Room ID and constructs their constituent parts.
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2020-11-04 09:28:37 +00:00
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struct RoomIdComponents {
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2020-11-02 17:08:38 +00:00
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// MARK: - Constants
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private enum Constants {
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static let matrixRoomIdPrefix = "!"
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static let homeServerSeparator: Character = ":"
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}
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// MARK: - Properties
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2020-11-04 09:28:37 +00:00
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let localRoomId: String
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2020-11-02 17:08:38 +00:00
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let homeServer: String
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// MARK: - Setup
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init?(matrixID: String) {
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guard MXTools.isMatrixRoomIdentifier(matrixID),
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2020-11-04 09:28:37 +00:00
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let (localRoomId, homeServer) = RoomIdComponents.getLocalRoomIDAndHomeServer(from: matrixID) else {
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2020-11-02 17:08:38 +00:00
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return nil
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}
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2020-11-04 09:28:37 +00:00
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self.localRoomId = localRoomId
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2020-11-02 17:08:38 +00:00
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self.homeServer = homeServer
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}
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// MARK: - Private
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/// Extract local room id and homeserver from Matrix ID
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///
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/// - Parameter matrixID: A Matrix ID
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/// - Returns: A tuple with local room ID and homeserver.
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private static func getLocalRoomIDAndHomeServer(from matrixID: String) -> (String, String)? {
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let matrixIDParts = matrixID.split(separator: Constants.homeServerSeparator)
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guard matrixIDParts.count == 2 else {
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return nil
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}
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let localRoomID = matrixIDParts[0].replacingOccurrences(of: Constants.matrixRoomIdPrefix, with: "")
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let homeServer = String(matrixIDParts[1])
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return (localRoomID, homeServer)
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}
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}
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