| 1 | using System.Collections.Frozen; |
| 2 | using System.Text.Json; |
| 3 | using ModelContextProtocol.Protocol; |
| 4 | using ModelContextProtocol.Server; |
| 5 | using TelegramRelay.Mcp; |
| 6 | |
| 7 | var tools = ToolCatalog.Build(); |
| 8 | |
| 9 | var options = new McpServerOptions |
| 10 | { |
| 11 | ServerInfo = new Implementation { Name = "TelegramRelay.Mcp", Version = "0.1.0" }, |
| 12 | ProtocolVersion = "2024-11-05", |
| 13 | Capabilities = new ServerCapabilities |
| 14 | { |
| 15 | Tools = new ToolsCapability { ListChanged = false } |
| 16 | }, |
| 17 | Handlers = new McpServerHandlers |
| 18 | { |
| 19 | ListToolsHandler = (_, _) => ValueTask.FromResult(new ListToolsResult { Tools = tools }), |
| 20 | CallToolHandler = async (request, cancellationToken) => |
| 21 | { |
| 22 | var name = request.Params?.Name ?? ""; |
| 23 | var args = request.Params?.Arguments is IReadOnlyDictionary<string, JsonElement> providedArgs |
| 24 | ? providedArgs |
| 25 | : FrozenDictionary<string, JsonElement>.Empty; |
| 26 | |
| 27 | try |
| 28 | { |
| 29 | var text = await Handlers.HandleAsync(name, args, cancellationToken).ConfigureAwait(false); |
| 30 | return new CallToolResult |
| 31 | { |
| 32 | Content = [new TextContentBlock { Text = text }], |
| 33 | IsError = false |
| 34 | }; |
| 35 | } |
| 36 | catch (ArgumentException ex) |
| 37 | { |
| 38 | return new CallToolResult |
| 39 | { |
| 40 | Content = [new TextContentBlock { Text = "Error: " + ex.Message }], |
| 41 | IsError = true |
| 42 | }; |
| 43 | } |
| 44 | catch (Exception ex) |
| 45 | { |
| 46 | return new CallToolResult |
| 47 | { |
| 48 | Content = [new TextContentBlock { Text = "Error: " + ex.Message }], |
| 49 | IsError = true |
| 50 | }; |
| 51 | } |
| 52 | } |
| 53 | } |
| 54 | }; |
| 55 | |
| 56 | var transport = new StdioServerTransport("TelegramRelay.Mcp"); |
| 57 | await using var server = McpServer.Create(transport, options); |
| 58 | await server.RunAsync(cancellationToken: default).ConfigureAwait(false); |
| 59 | return 0; |
| 60 | |