import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
/**
* Logger interface definition
*/
export interface ILogger {
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
log(...args: any[]): void;
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
debug(...args: any[]): void;
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
warn(...args: any[]): void;
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
error(...args: any[]): void;
}
/**
* MCP compatible logger implementation
* Handles "Not connected" errors gracefully
*/
export class McpLogger implements ILogger {
constructor(private server: McpServer) {}
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
public log(...args: any[]): void {
this.sendLog("info", args);
}
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
public debug(...args: any[]): void {
this.sendLog("debug", args);
}
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
public warn(...args: any[]): void {
this.sendLog("warning", args);
}
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
public error(...args: any[]): void {
this.sendLog("error", args);
}
private sendLog(
level: "info" | "debug" | "warning" | "error",
// biome-ignore lint/suspicious/noExplicitAny: logging accepts any type
args: any[],
): void {
for (const arg of args) {
try {
this.server.server.sendLoggingMessage({
level,
data: arg,
});
} catch (error) {
if (error instanceof Error && error.message === "Not connected") {
return;
}
console.error(
`Failed to send log to MCP server: ${error instanceof Error ? error.message : String(error)}`,
);
console[level === "warning" ? "warn" : level]?.(arg);
}
}
}
}
