/**
 * Telemetry for compressed tools usage tracking
 * Logs to ~/.local/share/mcp/compressed-tools.jsonl
 */
import { appendFileSync, mkdirSync, existsSync } from "fs";
import { homedir } from "os";
import { join } from "path";
const LOG_DIR = join(homedir(), ".local", "share", "mcp");
const LOG_FILE = join(LOG_DIR, "compressed-tools.jsonl");
// Ensure log directory exists
if (!existsSync(LOG_DIR)) {
    mkdirSync(LOG_DIR, { recursive: true });
}
export function logTelemetry(event) {
    const entry = {
        timestamp: new Date().toISOString(),
        ...event,
    };
    try {
        appendFileSync(LOG_FILE, JSON.stringify(entry) + "\n");
    }
    catch {
        // Silently fail - telemetry should never break the tool
    }
}
export function calculateCompressionRatio(original, compressed) {
    if (original === 0)
        return 0;
    return Math.round((1 - compressed / original) * 100 * 10) / 10;
}