feat: 初始功能

Services/Abstractions/IPrintBackendClient.cs

@@ -0,0 +1,27 @@
+using CloudPrint.Client.Models;
+
+namespace CloudPrint.Client.Services.Abstractions;
+
+public interface IPrintBackendClient : IAsyncDisposable
+{
+    event EventHandler<PrintJobReceivedEventArgs>? PrintJobReceived;
+    event EventHandler<AppLogEntry>? LogReceived;
+
+    bool IsConnected { get; }
+    int PrinterId { get; }
+    string Token { get; }
+    AdminSession AdminSession { get; }
+
+    Task ConnectAsync(string address, string apiKey, CancellationToken cancellationToken = default);
+    Task<AdminSession> LoginAdminAsync(string username, string password, CancellationToken cancellationToken = default);
+    void SetAdminToken(string username, string accessToken);
+    void LogoutAdmin();
+    Task RegisterPrinterAsync(PrinterInfo printer, string apiKey, CancellationToken cancellationToken = default);
+    Task SubscribePrintJobsAsync(PrinterInfo printer, CancellationToken cancellationToken = default);
+    Task<string> DownloadPrintFileAsync(PrintJob job, string cacheRoot, CancellationToken cancellationToken = default);
+    Task UploadLibraryDocumentAsync(CloudPrintDocument document, CancellationToken cancellationToken = default);
+    Task CancelPrintJobAsync(PrintJob job, CancellationToken cancellationToken = default);
+    Task SendStatusUpdateAsync(PrintJob job, CancellationToken cancellationToken = default);
+    Task SendHeartbeatAsync(PrinterInfo printer, CancellationToken cancellationToken = default);
+    void Disconnect();
+}