using System;
using System.Drawing.Printing;
using System.Management;

class Program
{
    static void Main()
    {
        Console.WriteLine("Installed Printers and Their Details:\n");

        foreach (string printerName in PrinterSettings.InstalledPrinters)
        {
            Console.WriteLine($"Printer: {printerName}");

            string portName = GetPrinterPort(printerName);
            Console.WriteLine($"  Port: {portName}");
            Console.WriteLine($"  Type: {(IsVirtualPrinter(portName) ? "Virtual Printer" : "Physical Printer")}");

            PrintTrayDetails(printerName);
            Console.WriteLine(new string('-', 50));
        }
    }

    static void PrintTrayDetails(string printerName)
    {
        try
        {
            PrinterSettings settings = new PrinterSettings();

            settings.PrinterName = printerName;

            if (!settings.IsValid)
            {
                Console.WriteLine("  (Printer is not accessible)");
                return;
            }

            PrinterSettings.PaperSourceCollection paperSources = settings.PaperSources;
            Console.WriteLine($"  Number of Trays: {paperSources.Count}");

            foreach (PaperSource tray in paperSources)
            {
                int capacity = GetTrayCapacity(printerName, tray.SourceName);
                Console.WriteLine($"  - Tray: {tray.SourceName} (Kind: {tray.Kind}) - Capacity: {(capacity > 0 ? capacity + " sheets" : "Unknown")}");
            }

        }
        catch (Exception ex)
        {
            Console.WriteLine($"  Error retrieving tray info: {ex.Message}");
        }
    }

    static string GetPrinterPort(string printerName)
    {
        try
        {
            string query = $"SELECT PortName FROM Win32_Printer WHERE Name = '{printerName.Replace("\\", "\\\\")}'";
            using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(query))
            {
                foreach (ManagementObject printer in searcher.Get())
                {
                    return printer["PortName"]?.ToString() ?? "Unknown";
                }
            }
        }
        catch (Exception ex)
        {
            return $"Error: {ex.Message}";
        }
        return "Unknown";
    }

    static int GetTrayCapacity(string printerName, string trayName)
    {
        try
        {
            string query = $"SELECT * FROM Win32_PrinterPaperTray WHERE PrinterName = '{printerName.Replace("\\", "\\\\")}'";
            using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(query))
            {
                foreach (ManagementObject tray in searcher.Get())
                {
                    if (tray["PaperTray"] != null && tray["PaperCapacity"] != null)
                    {
                        int capacity = Convert.ToInt32(tray["PaperCapacity"]);
                        return capacity > 0 ? capacity : -1;
                    }
                }
            }
        }
        catch
        {
            return -1; // Return -1 if information is unavailable
        }
        return -1;
    }

    static bool IsVirtualPrinter(string portName)
    {
        if (string.IsNullOrEmpty(portName)) return false;

        string[] virtualPorts = { "nul", "PORTPROMPT", "FILE:" };
        return Array.Exists(virtualPorts, p => portName.Equals(p, StringComparison.OrdinalIgnoreCase));
    }
}