#!/usr/bin/env python3
"""
MCP Label Printer Server
Prints labels with QR codes to Brother QL-810W via P-touch Editor Lite
"""
import asyncio
import json
from typing import Any
from mcp.server import Server
from mcp.server.stdio import stdio_server
from mcp.types import Tool, TextContent
from .printer import print_label
# Create MCP server
server = Server("label-printer")
@server.list_tools()
async def list_tools() -> list[Tool]:
"""List available tools."""
return [
Tool(
name="print_label",
description="Print a label with QR code and text to Brother QL-810W printer. The QR code links to the provided URL, and text shows issue details.",
inputSchema={
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "URL to encode in QR code (e.g., issue/PR link)"
},
"issue_number": {
"type": "string",
"description": "Issue/PR number (e.g., '#1234')"
},
"title": {
"type": "string",
"description": "Issue/PR title"
},
"description": {
"type": "string",
"description": "Brief description (optional)",
"default": ""
}
},
"required": ["url", "issue_number", "title"]
}
)
]
@server.call_tool()
async def call_tool(name: str, arguments: dict[str, Any]) -> list[TextContent]:
"""Handle tool calls."""
if name != "print_label":
return [TextContent(type="text", text=f"Unknown tool: {name}")]
try:
result = print_label(
url=arguments["url"],
issue_number=arguments["issue_number"],
title=arguments["title"],
description=arguments.get("description", "")
)
return [TextContent(type="text", text=result)]
except Exception as e:
return [TextContent(type="text", text=f"Error printing label: {str(e)}")]
async def main():
"""Run the MCP server."""
async with stdio_server() as (read_stream, write_stream):
await server.run(read_stream, write_stream, server.create_initialization_options())
def run():
"""Entry point."""
asyncio.run(main())
if __name__ == "__main__":
run()
