Refactor project structure and API

Model/API/ApiFactory.swift

@@ -0,0 +1,79 @@
+//
+//  ApiFactory.swift
+//  iKeyMon
+//
+//  Created by tracer on 13.11.25.
+//
+
+import Foundation
+
+enum APIVersion: String, CaseIterable {
+    case v2_12 = "2.12"
+    
+    static func from(versionString: String) -> APIVersion? {
+        if let version = APIVersion(rawValue: versionString) {
+            return version
+        }
+        
+        let components = versionString.split(separator: ".").compactMap { Int($0) }
+        guard components.count >= 2 else { return nil }
+        
+        let major = components[0]
+        let minor = components[1]
+        
+        switch (major, minor) {
+        case (2, 12...): return .v2_12
+        default: return nil
+        }
+    }
+}
+
+protocol AnyServerAPI {
+    func fetchSystemInfo() async throws -> SystemInfo
+    func fetchLoadData() async throws -> Any
+    func fetchMemoryData() async throws -> Any
+    func fetchUtilizationData() async throws -> Any
+}
+
+private struct AnyServerAPIWrapper<T: ServerAPIProtocol>: AnyServerAPI {
+    private let wrapped: T
+    
+    init(_ wrapped: T) {
+        self.wrapped = wrapped
+    }
+    
+    func fetchSystemInfo() async throws -> SystemInfo {
+        return try await wrapped.fetchSystemInfo()
+    }
+    
+    func fetchLoadData() async throws -> Any {
+        return try await wrapped.fetchLoad()
+    }
+    
+    func fetchMemoryData() async throws -> Any {
+        return try await wrapped.fetchMemory()
+    }
+    
+    func fetchUtilizationData() async throws -> Any {
+        return try await wrapped.fetchUtilization()
+    }
+}
+
+class APIFactory {
+    static func createAPI(baseURL: URL, version: APIVersion) -> AnyServerAPI {
+        switch version {
+        case .v2_12:
+            return AnyServerAPIWrapper(APIv2_12(baseURL: baseURL))
+        }
+    }
+    
+    static func createAPI(baseURL: URL, versionString: String) -> AnyServerAPI? {
+        guard let version = APIVersion.from(versionString: versionString) else { return nil }
+        return createAPI(baseURL: baseURL, version: version)
+    }
+    
+    static func detectAndCreateAPI(baseURL: URL) async throws -> AnyServerAPI {
+        // For now we only support API v2.12, so return that implementation directly.
+        return AnyServerAPIWrapper(APIv2_12(baseURL: baseURL))
+    }
+}

Model/API/ApiManager.swift

@@ -0,0 +1,64 @@
+//
+//  ApiManager.swift
+//  iKeyMon
+//
+//  Created by tracer on 13.11.25.
+//
+
+import Foundation
+import Combine
+
+@MainActor
+class APIManager: ObservableObject {
+    @Published var isConnected = false
+    @Published var currentVersion: String = ""
+    @Published var lastError: Error?
+    
+    private var api: AnyServerAPI?
+    private let baseURL: URL
+    
+    init(baseURL: URL) {
+        self.baseURL = baseURL
+    }
+    
+    func connect() async {
+        do {
+            self.api = try await APIFactory.detectAndCreateAPI(baseURL: baseURL)
+            let systemInfo = try await api!.fetchSystemInfo()
+            self.currentVersion = systemInfo.version
+            self.isConnected = true
+            self.lastError = nil
+        } catch {
+            self.isConnected = false
+            self.lastError = error
+            self.api = nil
+        }
+    }
+    
+    func disconnect() {
+        self.api = nil
+        self.isConnected = false
+        self.currentVersion = ""
+        self.lastError = nil
+    }
+    
+    func fetchSystemInfo() async throws -> SystemInfo {
+        guard let api = api else { throw APIError.invalidResponse }
+        return try await api.fetchSystemInfo()
+    }
+    
+    func fetchLoad() async throws -> Any {
+        guard let api = api else { throw APIError.invalidResponse }
+        return try await api.fetchLoadData()
+    }
+    
+    func fetchMemory() async throws -> Any {
+        guard let api = api else { throw APIError.invalidResponse }
+        return try await api.fetchMemoryData()
+    }
+    
+    func fetchUtilization() async throws -> Any {
+        guard let api = api else { throw APIError.invalidResponse }
+        return try await api.fetchUtilizationData()
+    }
+}

Model/API/BaseAPI.swift

@@ -0,0 +1,66 @@
+//
+//  BaseAPI.swift
+//  iKeyMon
+//
+//  Created by tracer on 13.11.25.
+//
+
+
+import Foundation
+
+protocol ServerAPIProtocol {
+    associatedtype LoadType: Codable
+    associatedtype MemoryType: Codable
+    associatedtype UtilizationType: Codable
+    
+    func fetchSystemInfo() async throws -> SystemInfo
+    func fetchLoad() async throws -> LoadType
+    func fetchMemory() async throws -> MemoryType
+    func fetchUtilization() async throws -> UtilizationType
+}
+
+struct SystemInfo: Codable {
+    let version: String
+    let timestamp: Date
+    let hostname: String
+}
+
+class BaseAPIClient {
+    let baseURL: URL
+    let session: URLSession
+    
+    init(baseURL: URL, session: URLSession = .shared) {
+        self.baseURL = baseURL
+        self.session = session
+    }
+    
+    func performRequest<T: Codable>(_ request: URLRequest, responseType: T.Type) async throws -> T {
+        let (data, response) = try await session.data(for: request)
+        
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw APIError.invalidResponse
+        }
+        
+        guard 200...299 ~= httpResponse.statusCode else {
+            throw APIError.httpError(httpResponse.statusCode)
+        }
+        
+        return try JSONDecoder().decode(T.self, from: data)
+    }
+}
+
+enum APIError: Error, LocalizedError {
+    case invalidURL
+    case invalidResponse
+    case httpError(Int)
+    case decodingError(Error)
+    
+    var errorDescription: String? {
+        switch self {
+        case .invalidURL: return "Invalid URL"
+        case .invalidResponse: return "Invalid response"
+        case .httpError(let code): return "HTTP Error: \(code)"
+        case .decodingError(let error): return "Decoding error: \(error.localizedDescription)"
+        }
+    }
+}

Model/API/Server.swift

@@ -0,0 +1,39 @@
+//
+//  Server.swift
+//  iKeyMon
+//
+//  Created by tracer on 30.03.25.
+//
+
+import Foundation
+
+struct Server: Identifiable, Codable, Hashable, Equatable {
+    let id: UUID
+    var hostname: String
+    var info: ServerInfo?
+    var pingable: Bool
+
+    init(id: UUID = UUID(), hostname: String, info: ServerInfo? = nil, pingable: Bool = false) {
+        self.id = id
+        self.hostname = hostname
+        self.info = info
+        self.pingable = pingable
+    }
+
+    // MARK: - Manual conformance
+
+    static func == (lhs: Server, rhs: Server) -> Bool {
+        lhs.id == rhs.id && lhs.hostname == rhs.hostname && lhs.info == rhs.info && lhs.pingable == rhs.pingable
+    }
+
+    func hash(into hasher: inout Hasher) {
+        hasher.combine(id)
+        hasher.combine(hostname)
+        hasher.combine(info)
+        hasher.combine(pingable)
+    }
+
+    enum CodingKeys: String, CodingKey {
+        case id, hostname, info, pingable
+    }
+}

Model/API/ServerAPI.swift

@@ -0,0 +1,271 @@
+//
+//  ServerAPI.swift
+//  iKeyMon
+//
+//  Created by tracer on 06.04.25.
+//
+import Foundation
+
+final class ServerAPI {
+    private let hostname: String
+    private let apiKey: String
+
+    init(hostname: String, apiKey: String) {
+        self.hostname = hostname
+        self.apiKey = apiKey
+    }
+
+    init?(server: Server) {
+        guard let apiKey = KeychainHelper.loadApiKey(for: server.hostname)?.trimmingCharacters(in: .whitespacesAndNewlines) else {
+            return nil
+        }
+        self.hostname = server.hostname
+        self.apiKey = apiKey
+    }
+
+    @discardableResult
+    func ping() async -> Bool {
+        guard let url = URL(string: "https://\(hostname)/api/v2/ping") else {
+            print("❌ [ServerAPI] Invalid ping URL for hostname: \(hostname)")
+            return false
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = "GET"
+        request.setValue(apiKey, forHTTPHeaderField: "X-API-KEY")
+        request.timeoutInterval = 10
+
+        do {
+            let (data, response) = try await URLSession.shared.data(for: request)
+            
+            // Add debug info for comparison with server info request
+            if let httpResponse = response as? HTTPURLResponse {
+                if httpResponse.statusCode != 200 {
+                    print("❌ [ServerAPI] Ping HTTP Status: \(httpResponse.statusCode) for \(hostname)")
+                    if let responseString = String(data: data, encoding: .utf8) {
+                        print("❌ [ServerAPI] Ping error response: \(responseString)")
+                    }
+                }
+            }
+
+            if let result = try? JSONDecoder().decode([String: String].self, from: data), result["response"] == "pong" {
+                return true
+            } else {
+                print("❌ [ServerAPI] Ping failed - invalid response for \(hostname)")
+                if let responseString = String(data: data, encoding: .utf8) {
+                    print("❌ [ServerAPI] Ping response: \(responseString)")
+                }
+                return false
+            }
+        } catch {
+            print("❌ [ServerAPI] Ping error for \(hostname): \(error)")
+            return false
+        }
+    }
+    
+    func fetchServerInfo() async throws -> ServerInfo {
+        print("🔍 [ServerAPI] Starting fetchServerInfo for hostname: \(hostname)")
+        
+        guard let url = URL(string: "https://\(hostname)/api/v2/server") else {
+            print("❌ [ServerAPI] Invalid URL for hostname: \(hostname)")
+            throw URLError(.badURL)
+        }
+        
+        print("🌐 [ServerAPI] URL created: \(url.absoluteString)")
+
+        var request = URLRequest(url: url)
+        request.httpMethod = "GET"
+        request.setValue(apiKey, forHTTPHeaderField: "X-API-KEY")
+        // Temporarily remove Content-Type to match ping request exactly
+        // request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.timeoutInterval = 30
+        
+        print("📤 [ServerAPI] Making request with timeout: \(request.timeoutInterval)s")
+        print("📤 [ServerAPI] API Key (first 10 chars): \(String(apiKey.prefix(10)))...")
+        print("📤 [ServerAPI] Request headers: \(request.allHTTPHeaderFields ?? [:])")
+
+        do {
+            let startTime = Date()
+            let (data, response) = try await URLSession.shared.data(for: request)
+            let endTime = Date()
+            let duration = endTime.timeIntervalSince(startTime)
+            
+            print("📥 [ServerAPI] Request completed in \(String(format: "%.2f", duration))s")
+            
+            if let httpResponse = response as? HTTPURLResponse {
+                print("📥 [ServerAPI] HTTP Status: \(httpResponse.statusCode)")
+                
+                // Handle 401 specifically
+                if httpResponse.statusCode == 401 {
+                    print("❌ [ServerAPI] 401 Unauthorized - API key issue!")
+                    if let responseString = String(data: data, encoding: .utf8) {
+                        print("❌ [ServerAPI] 401 Response body: \(responseString)")
+                    }
+                    throw URLError(.userAuthenticationRequired)
+                }
+                
+                // Handle other non-200 status codes
+                if httpResponse.statusCode != 200 {
+                    print("❌ [ServerAPI] Non-200 status code: \(httpResponse.statusCode)")
+                    if let responseString = String(data: data, encoding: .utf8) {
+                        print("❌ [ServerAPI] Error response body: \(responseString)")
+                    }
+                    throw URLError(.badServerResponse)
+                }
+            }
+            
+            print("📥 [ServerAPI] Data size: \(data.count) bytes")
+            
+            print("🔄 [ServerAPI] Decoding response payload...")
+            
+            let decoder = JSONDecoder()
+            decoder.keyDecodingStrategy = .convertFromSnakeCase
+            let decodedResponse = try decoder.decode(ServerResponseEnvelope.self, from: data)
+            let decoded = decodedResponse.toDomain()
+            print("✅ [ServerAPI] JSON decoding successful")
+            
+            return decoded
+        } catch let urlError as URLError {
+            print("❌ [ServerAPI] URLError: \(urlError.localizedDescription)")
+            print("❌ [ServerAPI] URLError code: \(urlError.code.rawValue)")
+            throw urlError
+        } catch let decodingError as DecodingError {
+            print("❌ [ServerAPI] Decoding error: \(decodingError)")
+            throw decodingError
+        } catch {
+            print("❌ [ServerAPI] Unexpected error: \(error)")
+            throw error
+        }
+    }
+}
+
+// MARK: - Response Helpers
+
+private extension ServerAPI {
+    struct ServerResponseEnvelope: Decodable {
+        let data: ServerData
+        let meta: Meta
+        
+        struct Meta: Decodable {
+            let apiVersion: String
+        }
+    }
+    
+    struct ServerData: Decodable {
+        struct Port: Decodable {
+            let service: String
+            let status: String
+            let port: Int
+            let proto: String
+        }
+        
+        struct Load: Decodable {
+            let minute1: Double
+            let minute5: Double
+            let minute15: Double
+            let percent: Double
+            let cpuCount: Int
+            let level: String
+        }
+        
+        struct Memory: Decodable {
+            let free: Int
+            let used: Int
+            let total: Int
+            let percent: Double
+        }
+        
+        struct Disk: Decodable {
+            let free: Int
+            let used: Int
+            let total: Int
+            let percent: Double
+        }
+        
+        struct PHPInterpreter: Decodable {
+            let version: String
+            let path: String?
+            let configFile: String?
+            let extensions: [String]
+            let memoryLimit: String?
+            let maxExecutionTime: String?
+        }
+        
+        let hostname: String
+        let ipAddresses: [String]
+        let cpuCores: Int
+        let serverTime: String
+        let uptime: String
+        let processCount: Int
+        let apacheVersion: String
+        let phpVersion: String
+        let mysqlVersion: String?
+        let mariadbVersion: String?
+        let ports: [Port]?
+        let load: Load
+        let memory: Memory
+        let swap: Memory
+        let diskSpace: Disk
+        let panelVersion: String
+        let panelBuild: String
+        let additionalPhpInterpreters: [PHPInterpreter]?
+    }
+    
+}
+
+private extension ServerAPI.ServerResponseEnvelope {
+    func toDomain() -> ServerInfo {
+        ServerInfo(
+            hostname: data.hostname,
+            ipAddresses: data.ipAddresses,
+            cpuCores: data.cpuCores,
+            serverTime: data.serverTime,
+            uptime: data.uptime,
+            processCount: data.processCount,
+            apacheVersion: data.apacheVersion,
+            phpVersion: data.phpVersion,
+            mysqlVersion: data.mysqlVersion,
+            mariadbVersion: data.mariadbVersion,
+            ports: data.ports?.map { ServerInfo.ServicePort(service: $0.service, status: $0.status, port: $0.port, proto: $0.proto) },
+            load: ServerInfo.Load(
+                minute1: data.load.minute1,
+                minute5: data.load.minute5,
+                minute15: data.load.minute15,
+                percent: data.load.percent,
+                cpuCount: data.load.cpuCount,
+                level: data.load.level
+            ),
+            memory: ServerInfo.Memory(
+                free: data.memory.free,
+                used: data.memory.used,
+                total: data.memory.total,
+                percent: data.memory.percent
+            ),
+            swap: ServerInfo.Memory(
+                free: data.swap.free,
+                used: data.swap.used,
+                total: data.swap.total,
+                percent: data.swap.percent
+            ),
+            diskSpace: ServerInfo.DiskSpace(
+                free: data.diskSpace.free,
+                used: data.diskSpace.used,
+                total: data.diskSpace.total,
+                percent: data.diskSpace.percent
+            ),
+            panelVersion: data.panelVersion,
+            panelBuild: data.panelBuild,
+            apiVersion: meta.apiVersion,
+            additionalPHPInterpreters: data.additionalPhpInterpreters?.map {
+                ServerInfo.PHPInterpreter(
+                    version: $0.version,
+                    path: $0.path,
+                    configFile: $0.configFile,
+                    extensions: $0.extensions,
+                    memoryLimit: $0.memoryLimit,
+                    maxExecutionTime: $0.maxExecutionTime
+                )
+            }
+        )
+    }
+}

Model/API/ServerInfo.swift

@@ -0,0 +1,177 @@
+import Foundation
+
+// MARK: - Server Info Domain Model
+
+struct ServerInfo: Codable, Hashable, Equatable {
+    struct Load: Codable, Hashable, Equatable {
+        let minute1: Double
+        let minute5: Double
+        let minute15: Double
+        let percent: Double
+        let cpuCount: Int
+        let level: String
+
+        init(minute1: Double, minute5: Double, minute15: Double, percent: Double, cpuCount: Int, level: String) {
+            self.minute1 = minute1
+            self.minute5 = minute5
+            self.minute15 = minute15
+            self.percent = percent
+            self.cpuCount = cpuCount
+            self.level = level
+        }
+    }
+
+    struct Memory: Codable, Hashable, Equatable {
+        let free: Int
+        let used: Int
+        let total: Int
+        let percent: Double
+
+        init(free: Int, used: Int, total: Int, percent: Double) {
+            self.free = free
+            self.used = used
+            self.total = total
+            self.percent = percent
+        }
+    }
+
+    struct DiskSpace: Codable, Hashable, Equatable {
+        let free: Int
+        let used: Int
+        let total: Int
+        let percent: Double
+
+        init(free: Int, used: Int, total: Int, percent: Double) {
+            self.free = free
+            self.used = used
+            self.total = total
+            self.percent = percent
+        }
+    }
+
+    struct ServicePort: Codable, Hashable, Identifiable, Equatable {
+        var id: String { "\(service)-\(port)-\(proto)" }
+        let service: String
+        let status: String
+        let port: Int
+        let proto: String
+
+        init(service: String, status: String, port: Int, proto: String) {
+            self.service = service
+            self.status = status
+            self.port = port
+            self.proto = proto
+        }
+    }
+
+    struct PHPInterpreter: Codable, Hashable, Identifiable, Equatable {
+        var id: String { versionFull }
+        let version: String
+        let path: String?
+        let configFile: String?
+        let extensions: [String]
+        let memoryLimit: String?
+        let maxExecutionTime: String?
+
+        init(
+            version: String,
+            path: String? = nil,
+            configFile: String? = nil,
+            extensions: [String] = [],
+            memoryLimit: String? = nil,
+            maxExecutionTime: String? = nil
+        ) {
+            self.version = version
+            self.path = path
+            self.configFile = configFile
+            self.extensions = extensions
+            self.memoryLimit = memoryLimit
+            self.maxExecutionTime = maxExecutionTime
+        }
+
+        var versionFull: String {
+            var components = [version]
+            if let path, !path.isEmpty {
+                components.append(path)
+            }
+            return components.joined(separator: " – ")
+        }
+    }
+
+    var hostname: String
+    var ipAddresses: [String]
+    var cpuCores: Int
+    var serverTime: String
+    var uptime: String
+    var processCount: Int
+    var apacheVersion: String
+    var phpVersion: String
+    var mysqlVersion: String?
+    var mariadbVersion: String?
+    var ports: [ServicePort]?
+    var load: Load
+    var memory: Memory
+    var swap: Memory
+    var diskSpace: DiskSpace
+    var panelVersion: String
+    var panelBuild: String
+    var apiVersion: String
+    var additionalPHPInterpreters: [PHPInterpreter]?
+
+    var formattedVersion: String {
+        "KeyHelp \(panelVersion) • Build \(panelBuild) • API \(apiVersion)"
+    }
+
+    var formattedServerTime: String {
+        guard let date = ServerInfo.isoFormatter.date(from: serverTime) else {
+            return serverTime
+        }
+        return ServerInfo.displayFormatter.string(from: date)
+    }
+}
+
+// MARK: - Helpers & Sample Data
+
+extension ServerInfo {
+    private static let isoFormatter: ISO8601DateFormatter = {
+        let formatter = ISO8601DateFormatter()
+        formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds, .withColonSeparatorInTimeZone]
+        return formatter
+    }()
+
+    private static let displayFormatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .medium
+        formatter.timeStyle = .medium
+        return formatter
+    }()
+
+    static let placeholder = ServerInfo(
+        hostname: "preview.example.com",
+        ipAddresses: ["192.168.1.1", "fe80::1"],
+        cpuCores: 4,
+        serverTime: "2025-04-04T18:00:00+0200",
+        uptime: "3 Days / 12 Hours / 30 Minutes",
+        processCount: 123,
+        apacheVersion: "2.4.58",
+        phpVersion: "8.2.12",
+        mysqlVersion: "8.0.33",
+        mariadbVersion: nil,
+        ports: [
+            ServicePort(service: "HTTP", status: "online", port: 80, proto: "tcp"),
+            ServicePort(service: "HTTPS", status: "online", port: 443, proto: "tcp"),
+            ServicePort(service: "SSH", status: "offline", port: 22, proto: "tcp")
+        ],
+        load: Load(minute1: 0.5, minute5: 0.3, minute15: 0.2, percent: 10.0, cpuCount: 4, level: "low"),
+        memory: Memory(free: 8_000_000_000, used: 4_000_000_000, total: 12_000_000_000, percent: 33.3),
+        swap: Memory(free: 4_000_000_000, used: 1_000_000_000, total: 5_000_000_000, percent: 20.0),
+        diskSpace: DiskSpace(free: 100_000_000_000, used: 50_000_000_000, total: 150_000_000_000, percent: 33.3),
+        panelVersion: "25.0",
+        panelBuild: "3394",
+        apiVersion: "2",
+        additionalPHPInterpreters: [
+            PHPInterpreter(version: "8.3", path: "/usr/bin/php8.3"),
+            PHPInterpreter(version: "8.2", path: "/usr/bin/php8.2")
+        ]
+    )
+}

Model/API/ServerTypes.swift

@@ -0,0 +1,73 @@
+//
+//  ServerTypes_Fixed.swift
+//  iKeyMon
+//
+//  Fixed server types matching your existing code structure
+//
+
+import Foundation
+
+// MARK: - Server API Response Types
+struct ServerAPIResponse<T: Codable>: Codable {
+    let data: T
+    let status: String
+    let timestamp: Date
+    let version: String
+    
+    enum CodingKeys: String, CodingKey {
+        case data
+        case status
+        case timestamp
+        case version
+    }
+}
+
+// MARK: - Server API Version
+struct ServerAPIVersion: Codable {
+    let major: Int
+    let minor: Int
+    let patch: Int
+    let string: String
+    
+    init(major: Int, minor: Int, patch: Int = 0) {
+        self.major = major
+        self.minor = minor
+        self.patch = patch
+        self.string = "\(major).\(minor).\(patch)"
+    }
+    
+    init(from versionString: String) throws {
+        let components = versionString.split(separator: ".").compactMap { Int($0) }
+        guard components.count >= 2 else {
+            throw DecodingError.dataCorrupted(
+                DecodingError.Context(codingPath: [], debugDescription: "Invalid version string format")
+            )
+        }
+        
+        self.major = components[0]
+        self.minor = components[1]
+        self.patch = components.count > 2 ? components[2] : 0
+        self.string = versionString
+    }
+}
+
+// MARK: - Server API Response Factory
+class ServerAPIResponseFactory {
+    static func createResponse<T: Codable>(data: T, status: String = "success") -> ServerAPIResponse<T> {
+        return ServerAPIResponse(
+            data: data,
+            status: status,
+            timestamp: Date(),
+            version: "1.0"
+        )
+    }
+    
+    static func createErrorResponse(error: String) -> ServerAPIResponse<String> {
+        return ServerAPIResponse(
+            data: error,
+            status: "error",
+            timestamp: Date(),
+            version: "1.0"
+        )
+    }
+}

Model/API/Versions/APIv2_12.swift

@@ -0,0 +1,170 @@
+//
+//  APIv2_12.swift
+//  iKeyMon
+//
+//  Created by tracer on 13.11.25.
+//
+
+
+import Foundation
+
+extension APIv2_12 {
+    struct Load: Codable {
+        let current: LoadMetrics
+        let historical: [LoadMetrics]
+        
+        struct LoadMetrics: Codable {
+            let oneMinute: Double
+            let fiveMinute: Double
+            let fifteenMinute: Double
+            let timestamp: Date
+            
+            enum CodingKeys: String, CodingKey {
+                case oneMinute = "load_1"
+                case fiveMinute = "load_5"
+                case fifteenMinute = "load_15"
+                case timestamp
+            }
+        }
+    }
+    
+    struct Memory: Codable {
+        let system: SystemMemory
+        let swap: SwapMemory?
+        
+        struct SystemMemory: Codable {
+            let total: Int64
+            let used: Int64
+            let free: Int64
+            let available: Int64
+            let buffers: Int64?
+            let cached: Int64?
+        }
+        
+        struct SwapMemory: Codable {
+            let total: Int64
+            let used: Int64
+            let free: Int64
+        }
+    }
+    
+    struct Utilization: Codable {
+        let cpu: CPUUtilization
+        let memory: MemoryUtilization
+        let disk: [DiskUtilization]
+        let network: [NetworkUtilization]?
+        
+        struct CPUUtilization: Codable {
+            let overall: Double
+            let cores: [Double]
+            let processes: [ProcessInfo]?
+            
+            struct ProcessInfo: Codable {
+                let pid: Int
+                let name: String
+                let cpuPercent: Double
+                
+                enum CodingKeys: String, CodingKey {
+                    case pid
+                    case name
+                    case cpuPercent = "cpu_percent"
+                }
+            }
+        }
+        
+        struct MemoryUtilization: Codable {
+            let percent: Double
+            let topProcesses: [ProcessMemoryInfo]?
+            
+            struct ProcessMemoryInfo: Codable {
+                let pid: Int
+                let name: String
+                let memoryMB: Double
+                
+                enum CodingKeys: String, CodingKey {
+                    case pid
+                    case name
+                    case memoryMB = "memory_mb"
+                }
+            }
+        }
+        
+        struct DiskUtilization: Codable {
+            let device: String
+            let mountpoint: String
+            let usedPercent: Double
+            let totalBytes: Int64
+            let usedBytes: Int64
+            let freeBytes: Int64
+            
+            enum CodingKeys: String, CodingKey {
+                case device
+                case mountpoint
+                case usedPercent = "used_percent"
+                case totalBytes = "total_bytes"
+                case usedBytes = "used_bytes"
+                case freeBytes = "free_bytes"
+            }
+        }
+        
+        struct NetworkUtilization: Codable {
+            let interface: String
+            let bytesIn: Int64
+            let bytesOut: Int64
+            let packetsIn: Int64
+            let packetsOut: Int64
+            
+            enum CodingKeys: String, CodingKey {
+                case interface
+                case bytesIn = "bytes_in"
+                case bytesOut = "bytes_out"
+                case packetsIn = "packets_in"
+                case packetsOut = "packets_out"
+            }
+        }
+    }
+}
+
+class APIv2_12: BaseAPIClient, ServerAPIProtocol {
+    typealias LoadType = APIv2_12.Load
+    typealias MemoryType = APIv2_12.Memory
+    typealias UtilizationType = APIv2_12.Utilization
+    
+    private enum Endpoint: String {
+        case systemInfo = "/api/v2.12/system/info"
+        case load = "/api/v2.12/metrics/load"
+        case memory = "/api/v2.12/metrics/memory"
+        case utilization = "/api/v2.12/metrics/utilization"
+        
+        func url(baseURL: URL) -> URL {
+            return baseURL.appendingPathComponent(self.rawValue)
+        }
+    }
+    
+    func fetchSystemInfo() async throws -> SystemInfo {
+        let url = Endpoint.systemInfo.url(baseURL: baseURL)
+        let request = URLRequest(url: url)
+        return try await performRequest(request, responseType: SystemInfo.self)
+    }
+    
+    func fetchLoad() async throws -> LoadType {
+        let url = Endpoint.load.url(baseURL: baseURL)
+        var request = URLRequest(url: url)
+        request.setValue("application/json", forHTTPHeaderField: "Accept")
+        return try await performRequest(request, responseType: LoadType.self)
+    }
+    
+    func fetchMemory() async throws -> MemoryType {
+        let url = Endpoint.memory.url(baseURL: baseURL)
+        var request = URLRequest(url: url)
+        request.setValue("application/json", forHTTPHeaderField: "Accept")
+        return try await performRequest(request, responseType: MemoryType.self)
+    }
+    
+    func fetchUtilization() async throws -> UtilizationType {
+        let url = Endpoint.utilization.url(baseURL: baseURL)
+        var request = URLRequest(url: url)
+        request.setValue("application/json", forHTTPHeaderField: "Accept")
+        return try await performRequest(request, responseType: UtilizationType.self)
+    }
+}