import { logger } from "./logger";
import { SystemInfo, NetworkInterfaceInfo } from "./types";
import * as os from "os";
import * as fs from "fs";

let _cachedSystemInfo: SystemInfo | null = null;

export function getSystemInfo(): SystemInfo {
  if (_cachedSystemInfo) return _cachedSystemInfo;

  const totalMem = os.totalmem();
  const freeMem = os.freemem();

  _cachedSystemInfo = {
    platform: os.platform(),
    arch: os.arch(),
    hostname: os.hostname(),
    cpuCount: os.cpus().length,
    totalMemory: totalMem,
    freeMemory: freeMem,
    memoryPercent: ((totalMem - freeMem) / totalMem) * 100,
    loadAvg: {
      load1: os.loadavg()[0],
      load5: os.loadavg()[1],
      load15: os.loadavg()[2],
    },
    uptime: os.uptime(),
    tempDir: os.tmpdir(),
    homeDir: os.homedir(),
    cpus: os.cpus().map((cpu) => ({
      model: cpu.model,
      speed: cpu.speed,
      usage: 0, // Placeholder — requires system-level API
    })),
  };

  return _cachedSystemInfo;
}

export function clearSystemInfoCache(): void {
  _cachedSystemInfo = null;
}

export function getNetworkInterfaces(): NetworkInterfaceInfo[] {
  const rawIfaces = os.networkInterfaces();
  const result: NetworkInterfaceInfo[] = [];

  for (const [name, entries] of Object.entries(rawIfaces)) {
    if (!entries) continue;
    for (const iface of entries) {
      if (!iface) continue;
      result.push({
        name: name,
        family: iface.family as "IPv4" | "IPv6",
        address: iface.address,
        netmask: iface.netmask || "",
        mac: iface.mac,
        internal: iface.internal,
        cidr: (iface as any).cidr,
      });
    }
  }

  return result;
}

import { logger } from "./logger";
import { SystemInfo, NetworkInterfaceInfo } from "./types";
import * as os from "os";
import * as fs from "fs";

let _cachedSystemInfo: SystemInfo | null = null;

export function getSystemInfo(): SystemInfo {
  if (_cachedSystemInfo) return _cachedSystemInfo;

  const totalMem = os.totalmem();
  const freeMem = os.freemem();

  _cachedSystemInfo = {
    platform: os.platform(),
    arch: os.arch(),
    hostname: os.hostname(),
    cpuCount: os.cpus().length,
    totalMemory: totalMem,
    freeMemory: freeMem,
    memoryPercent: ((totalMem - freeMem) / totalMem) * 100,
    loadAvg: {
      load1: os.loadavg()[0],
      load5: os.loadavg()[1],
      load15: os.loadavg()[2],
    },
    uptime: os.uptime(),
    tempDir: os.tmpdir(),
    homeDir: os.homedir(),
    cpus: os.cpus().map((cpu) => ({
      model: cpu.model,
      speed: cpu.speed,
      usage: 0, // Placeholder — requires system-level API
    })),
  };

  return _cachedSystemInfo;
}

export function clearSystemInfoCache(): void {
  _cachedSystemInfo = null;
}

export function getNetworkInterfaces(): NetworkInterfaceInfo[] {
  const rawIfaces = os.networkInterfaces();
  const result: NetworkInterfaceInfo[] = [];

  for (const [name, entries] of Object.entries(rawIfaces)) {
    if (!entries) continue;
    for (const iface of entries) {
      if (!iface) continue;
      result.push({
        name: name,
        family: iface.family as "IPv4" | "IPv6",
        address: iface.address,
        netmask: iface.netmask || "",
        mac: iface.mac,
        internal: iface.internal,
        cidr: (iface as any).cidr,
      });
    }
  }

  return result;
}