Add ios connection info

ios/Shared/CommandClient.swift

@@ -0,0 +1,166 @@
+import Foundation
+import Libcore
+
+public class CommandClient: ObservableObject {
+    public enum ConnectionType {
+        case status
+        case groups
+        case log
+        case groupsInfoOnly
+    }
+    
+    private let connectionType: ConnectionType
+    private let logMaxLines: Int
+    private var commandClient: LibboxCommandClient?
+    private var connectTask: Task<Void, Error>?
+    
+    @Published private(set) var isConnected: Bool
+    @Published private(set) var status: LibboxStatusMessage?
+    @Published private(set) var groups: [SBGroup]?
+    @Published private(set) var logList: [String]
+    
+    public init(_ connectionType: ConnectionType, logMaxLines: Int = 300) {
+        self.connectionType = connectionType
+        self.logMaxLines = logMaxLines
+        logList = []
+        isConnected = false
+    }
+    
+    public func connect() {
+        if isConnected {
+            return
+        }
+        if let connectTask {
+            connectTask.cancel()
+        }
+        connectTask = Task {
+            await connect0()
+        }
+    }
+    
+    public func disconnect() {
+        if let connectTask {
+            connectTask.cancel()
+            self.connectTask = nil
+        }
+        if let commandClient {
+            try? commandClient.disconnect()
+            self.commandClient = nil
+        }
+    }
+    
+    private nonisolated func connect0() async {
+        let clientOptions = LibboxCommandClientOptions()
+        switch connectionType {
+        case .status:
+            clientOptions.command = LibboxCommandStatus
+        case .groups:
+            clientOptions.command = LibboxCommandGroup
+        case .log:
+            clientOptions.command = LibboxCommandLog
+        case .groupsInfoOnly:
+            clientOptions.command = LibboxCommandGroupInfoOnly
+        }
+        clientOptions.statusInterval = Int64(2 * NSEC_PER_SEC)
+        let client = LibboxNewCommandClient(clientHandler(self), clientOptions)!
+        do {
+            for i in 0 ..< 10 {
+                try await Task.sleep(nanoseconds: UInt64(Double(100 + (i * 50)) * Double(NSEC_PER_MSEC)))
+                try Task.checkCancellation()
+                do {
+                    try client.connect()
+                    await MainActor.run {
+                        commandClient = client
+                    }
+                    return
+                } catch {}
+                try Task.checkCancellation()
+            }
+        } catch {
+            try? client.disconnect()
+        }
+    }
+    
+    private class clientHandler: NSObject, LibboxCommandClientHandlerProtocol {
+        private let commandClient: CommandClient
+        
+        init(_ commandClient: CommandClient) {
+            self.commandClient = commandClient
+        }
+        
+        func connected() {
+            DispatchQueue.main.async { [self] in
+                if commandClient.connectionType == .log {
+                    commandClient.logList = []
+                }
+                commandClient.isConnected = true
+            }
+        }
+        
+        func disconnected(_: String?) {
+            DispatchQueue.main.async { [self] in
+                commandClient.isConnected = false
+            }
+        }
+        
+        func clearLog() {
+            DispatchQueue.main.async { [self] in
+                commandClient.logList.removeAll()
+            }
+        }
+        
+        func writeLog(_ message: String?) {
+            guard let message else {
+                return
+            }
+            DispatchQueue.main.async { [self] in
+                if commandClient.logList.count > commandClient.logMaxLines {
+                    commandClient.logList.removeFirst()
+                }
+                commandClient.logList.append(message)
+            }
+        }
+        
+        func writeStatus(_ message: LibboxStatusMessage?) {
+            DispatchQueue.main.async { [self] in
+                commandClient.status = message
+            }
+        }
+        
+        func writeGroups(_ groups: LibboxOutboundGroupIteratorProtocol?) {
+            guard let groups else {
+                return
+            }
+            var sbGroups = [SBGroup]()
+            while groups.hasNext() {
+                let group = groups.next()!
+                var items = [SBItem]()
+                let groupItems = group.getItems()
+                while groupItems?.hasNext() ?? false {
+                    let item = groupItems?.next()!
+                    items.append(SBItem(tag: item!.tag,
+                                        type: item!.type,
+                                        urlTestDelay: Int(item!.urlTestDelay)
+                                       )
+                    )
+                }
+                
+                sbGroups.append(.init(tag: group.tag,
+                                      type: group.type,
+                                      selected: group.selected,
+                                      items: items)
+                )
+                
+            }
+            DispatchQueue.main.async { [self] in
+                commandClient.groups = sbGroups
+            }
+        }
+        
+        func initializeClashMode(_ modeList: LibboxStringIteratorProtocol?, currentMode: String?) {
+        }
+        
+        func updateClashMode(_ newMode: String?) {
+        }
+    }
+}