feat: V3 only dms (#411)

* update package

* add chain id and SCW check

* add implementation

* fix a little formatting

* change defaults

* make a test release pod

* bump the latest libxmtp

* fix up all the async tests

* add installation timestamps and async members

* fix up the tests and bump the pod

* bump to the next version

* bad merge

* update the package

* fix up bad merge

* make block number optional

* add a test to reproduce the scw error

* update to latest libxmtp

* update the signers

* update to the latest libxmtp functions

* fix the linter

* get on a working version

* check the chain id

* chain id is optional

* fix the lint issue

* tag

* remove chain id from inbox id creation

* update the SCW functionality and message listing

* small tweak to message listing

* get closer

* small test clean up

* add the basic functionality to conversation and client

* put V2 stuff below the line

* more common functions

* reorder the conversations class and add additional functionality

* get everything compiling

* write a bunch of dm tests

* more tests

* beefing up all the tests

* fix up some tests

* Update Sources/XMTPiOS/Conversations.swift

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update Tests/XMTPTests/V3ClientTests.swift

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update Sources/XMTPiOS/Conversation.swift

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update Tests/XMTPTests/GroupTests.swift

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* add return statements

* get all the tests passing

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Sources/XMTPiOS/Client.swift

@@ -15,6 +15,7 @@ public enum ClientError: Error, CustomStringConvertible, LocalizedError {
 	case creationError(String)
 	case noV3Client(String)
 	case noV2Client(String)
+	case missingInboxId
 
 	public var description: String {
 		switch self {
@@ -24,6 +25,8 @@ public enum ClientError: Error, CustomStringConvertible, LocalizedError {
 			return "ClientError.noV3Client: \(err)"
 		case .noV2Client(let err):
 			return "ClientError.noV2Client: \(err)"
+		case .missingInboxId:
+			return "ClientError.missingInboxId"
 		}
 	}
 
@@ -197,7 +200,7 @@ public final class Client {
 	}
 
 	public static func createV3(account: SigningKey, options: ClientOptions) async throws -> Client {
-		let accountAddress = account.address
+		let accountAddress = account.address.lowercased()
 		let inboxId = try await getOrCreateInboxId(options: options, address: accountAddress)
 
 		return try await initializeClient(
@@ -209,10 +212,11 @@ public final class Client {
 	}
 
 	public static func buildV3(address: String, options: ClientOptions) async throws -> Client {
-		let inboxId = try await getOrCreateInboxId(options: options, address: address)
+		let accountAddress = address.lowercased()
+		let inboxId = try await getOrCreateInboxId(options: options, address: accountAddress)
 
 		return try await initializeClient(
-			accountAddress: address,
+			accountAddress: accountAddress,
 			options: options,
 			signingKey: nil,
 			inboxId: inboxId
@@ -693,6 +697,53 @@ public final class Client {
 			return nil
 		}
 	}
+
+	public func findConversation(conversationId: String) throws -> Conversation? {
+		guard let client = v3Client else {
+			throw ClientError.noV3Client("Error no V3 client initialized")
+		}
+		do {
+			let conversation = try client.conversation(conversationId: conversationId.hexToData)
+			return try conversation.toConversation(client: self)
+		} catch {
+			return nil
+		}
+	}
+
+	public func findConversationByTopic(topic: String) throws -> Conversation? {
+		guard let client = v3Client else {
+			throw ClientError.noV3Client("Error no V3 client initialized")
+		}
+		do {
+			let regexPattern = #"/xmtp/mls/1/g-(.*?)/proto"#
+			if let regex = try? NSRegularExpression(pattern: regexPattern) {
+				let range = NSRange(location: 0, length: topic.utf16.count)
+				if let match = regex.firstMatch(in: topic, options: [], range: range) {
+					let conversationId = (topic as NSString).substring(with: match.range(at: 1))
+					let conversation = try client.conversation(conversationId: conversationId.hexToData)
+					return try conversation.toConversation(client: self)
+				}
+			}
+		} catch {
+			return nil
+		}
+		return nil
+	}
+
+	public func findDm(address: String) async throws -> Dm? {
+		guard let client = v3Client else {
+			throw ClientError.noV3Client("Error no V3 client initialized")
+		}
+		guard let inboxId = try await inboxIdFromAddress(address: address) else {
+			throw ClientError.creationError("No inboxId present")
+		}
+		do {
+			let conversation = try client.dmConversation(targetInboxId: inboxId)
+			return Dm(ffiConversation: conversation, client: self)
+		} catch {
+			return nil
+		}
+	}
 
 	public func findMessage(messageId: String) throws -> MessageV3? {
 		guard let client = v3Client else {