10ce2ca1cd
- Extract core MCP logic into a new `mcpcore` module - Remove logging that interferes with JSON-RPC over STDIO - Improve server loop to parse requests before handling - Add stub for `logging/setLevel` JSON-RPC method - Refactor vcode server into a dedicated logic submodule
63 lines
1.6 KiB
V
63 lines
1.6 KiB
V
module mcp
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import time
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import os
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import freeflowuniverse.herolib.schemas.jsonrpc
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// Server is the main MCP server struct
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@[heap]
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pub struct Server {
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ServerConfiguration
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pub mut:
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client_config ClientConfiguration
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handler jsonrpc.Handler
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backend Backend
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}
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// start starts the MCP server
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pub fn (mut s Server) start() ! {
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// Note: Removed log.info() as it interferes with STDIO transport JSON-RPC communication
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for {
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// Read a message from stdin
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message := os.get_line()
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if message == '' {
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time.sleep(10000) // prevent cpu spinning
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continue
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}
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// Parse the JSON-RPC request
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request := jsonrpc.decode_request(message) or {
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// Note: Removed stderr logging as it can interfere with MCP Inspector
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// Try to extract the request ID for error response
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id := jsonrpc.decode_request_id(message) or { 0 }
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// Create an invalid request error response
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error_response := jsonrpc.new_error(id, jsonrpc.invalid_request).encode()
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println(error_response)
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continue
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}
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// Handle the message using the JSON-RPC handler
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response := s.handler.handle(request) or {
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// Note: Removed stderr logging as it can interfere with MCP Inspector
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// Create an internal error response
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error_response := jsonrpc.new_error(request.id, jsonrpc.internal_error).encode()
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println(error_response)
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continue
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}
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// Send the response (notifications may return empty responses)
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response_str := response.encode()
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if response_str.len > 0 {
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s.send(response_str)
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}
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}
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}
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// send sends a response to the client
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pub fn (mut s Server) send(response string) {
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// Send the response
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println(response)
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flush_stdout()
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}
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