PeerID 4/n: BitchatMessage.senderPeerID + String equality (#739)

bitchat/Models/BitchatMessage.swift

@@ -21,7 +21,7 @@ final class BitchatMessage: Codable {
     let originalSender: String?
     let isPrivate: Bool
     let recipientNickname: String?
-    let senderPeerID: String?
+    let senderPeerID: PeerID?
     let mentions: [String]?  // Array of mentioned nicknames
     var deliveryStatus: DeliveryStatus? // Delivery tracking
     
@@ -51,7 +51,7 @@ final class BitchatMessage: Codable {
         self.originalSender = originalSender
         self.isPrivate = isPrivate
         self.recipientNickname = recipientNickname
-        self.senderPeerID = senderPeerID
+        self.senderPeerID = PeerID(str: senderPeerID)
         self.mentions = mentions
         self.deliveryStatus = deliveryStatus ?? (isPrivate ? .sending : nil)
     }
@@ -151,7 +151,7 @@ extension BitchatMessage {
             data.append(recipData.prefix(255))
         }
         
-        if let senderPeerID = senderPeerID, let peerData = senderPeerID.data(using: .utf8) {
+        if let peerData = senderPeerID?.id.data(using: .utf8) {
             data.append(UInt8(min(peerData.count, 255)))
             data.append(peerData.prefix(255))
         }

bitchat/Models/PeerID.swift

@@ -61,6 +61,12 @@ extension PeerID {
         }
     }
     
+    /// Convenience init to handle `Optional<String>`
+    init?(str: (any StringProtocol)?) {
+        guard let str else { return nil }
+        self.init(str: str)
+    }
+    
     /// Convenience init to create PeerID by converting Data to String
     init?(data: Data) {
         guard let str = String(data: data, encoding: .utf8) else { return nil }
@@ -175,3 +181,28 @@ extension PeerID: Comparable {
         lhs.id < rhs.id
     }
 }
+
+// MARK: - String Interop Helpers
+
+// MARK: CustomStringConvertible
+
+extension PeerID: CustomStringConvertible {
+    /// So it returns the actual `id` like before even inside another String
+    var description: String {
+        id
+    }
+}
+
+// MARK: Custom Equatable w/ String & Optionality
+
+// PeerID <> String
+extension Optional where Wrapped == PeerID {
+    static func ==(lhs: Optional<Wrapped>, rhs: Optional<String>) -> Bool   { lhs?.id == rhs }
+    static func !=(lhs: Optional<Wrapped>, rhs: Optional<String>) -> Bool   { lhs?.id != rhs }
+}
+
+// String <> PeerID
+extension Optional where Wrapped == String {
+    static func ==(lhs: Optional<Wrapped>, rhs: Optional<PeerID>) -> Bool   { lhs == rhs?.id }
+    static func !=(lhs: Optional<Wrapped>, rhs: Optional<PeerID>) -> Bool   { lhs != rhs?.id }
+}