using System;
using System.Collections.Generic;
using System.Management;
using System.IO;
using System.Threading.Tasks;
using System.Text;
using System.Reflection;

namespace Sysinfo_Console
{
	class Sysinfo_Console
	{
        public static List<String> System_Information()
		{
            List<String> all_info = new List<String>();
            //Create an object of ManagementObjectSearcher class and pass query as parameter.
            ManagementObjectSearcher win32_mos = new ManagementObjectSearcher("select * from Win32_OperatingSystem");
            ManagementObjectSearcher ram_mos = new ManagementObjectSearcher("select * from Win32_PhysicalMemory");

            Double full_ram = 0;

            foreach (ManagementObject managementObject in win32_mos.Get())
            {
                if (managementObject["Caption"] != null)
                {
                    all_info.Add("Operating System Name: \n" + managementObject["Caption"].ToString());
                    //Console.WriteLine("Operating System Name  :  " + managementObject["Caption"].ToString());   //Display operating system caption
                }
                if (managementObject["OSArchitecture"] != null)
                {
                    all_info.Add("Operating System Architecture:  \n" + managementObject["OSArchitecture"].ToString());
                    //Console.WriteLine("Operating System Architecture  :  " + managementObject["OSArchitecture"].ToString());   //Display operating system architecture.
                }
                if (managementObject["CSDVersion"] != null)
                {
                    all_info.Add(managementObject["CSDVersion"].ToString());
                    //Console.WriteLine("Operating System Service Pack   :  " + managementObject["CSDVersion"].ToString());     //Display operating system version.
                }
            }
            foreach(ManagementObject managementObject in ram_mos.Get())
			{
                if (managementObject["Capacity"] != null)
                {
                    //Console.WriteLine(managementObject["Capacity"].ToString());
                    full_ram += Convert.ToDouble(managementObject["Capacity"].ToString());
                }
			}
            all_info.Add("RAM:\n" + (full_ram / 1073741824) + "GB");
            //Console.ReadKey();
            return all_info;
        }

        public static void Display_System_Information(List<String> computer_info)
		{
            Console.WriteLine("Displaying operating system info....\n");
            foreach (var p in computer_info)
			{
                Console.WriteLine(p);
			}
		}

        public static void Wirte_System_Information(List<String> computer_info, String desktop_path)
		{
            String file_path = desktop_path + "\\Sysinfo.txt";
            File.WriteAllLines(file_path, computer_info);
            Console.WriteLine("Writing info to: " + file_path);
            //foreach (var line in computer_info)
            //{
            //    File.WriteAllLines(".\\Sysinfo.txt", line);
            //}
		}
        static void Main(string[] args)
		{
            String current_path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
            String desktop_path = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            Console.WriteLine(current_path + "\n" + desktop_path);
            List<String> machine_info = System_Information();
            Display_System_Information(machine_info);
            Wirte_System_Information(machine_info, desktop_path);
        }
	}
}