/*
 csc -o phonebooker.exe -lSystem phonebooker.cs
*/
using System;
using System.IO;
using System.Text;
using System.IO.Ports;
using System.Threading;
using System.Collections;
using System.Text.RegularExpressions;

public class Driver 
{
	public static void Main(String[] args)
	{
		String rfdev = "RFCOMM1";
		if(args.Length != 0)
		{
			rfdev = args[0];
		}
		if(rfdev[0] == '/' || rfdev[rfdev.Length - 1] == '0')
		{
			Console.WriteLine("if you gave in an /dev/rfcomm0, it should be changed to a RFCOMM1\n coz this is .NET land, yo !");
		}
		Phonebooker p = new Phonebooker(rfdev);
		p.Initialize();
		IDictionary localphonebook = p.ReadPhonebook("ME");
		IDictionary simphonebook = p.ReadPhonebook("SM");
		p.Dispose();


		foreach(DictionaryEntry d in localphonebook)
		{
			// cheat using bash term commands :)
			Console.WriteLine(d.Key + ": \x001b[20G" + d.Value);
		}
		foreach(DictionaryEntry d in simphonebook)
		{
			Console.WriteLine(d.Key + ": \x001b[20G" + d.Value);
		}
	}
}

public class Phonebooker : IDisposable
{
	private SerialPort port = null;
	private Encoding encoding = new UTF8Encoding();

	private static Regex CPBR_STATUS_PATTERN = new Regex(@"\+CPBR: \(([0-9])+-([0-9]+)\),([0-9]*),([0-9]*)");
	private static Regex CPBR_DATA_PATTERN = new Regex("\\+CPBR: ([0-9]*),\"([^\"]*)\",([0-9]*),\"([^\"]*)\"");
	
	
	public Phonebooker(String device)
	{
		port = new SerialPort(device, 38400);
	}

	public void Dispose()
	{
		port.Close();
		port = null;
	}

	public void Initialize()
	{
		port.Open();
		ATCommand("ATZ");
		ATCommand("AT+CSCS=\"8859-1\"");
	}

	public String[] ATCommand(String command) 
	{
		return ATCommand(command,true);
	}

	public String[] ATCommand(String command, bool ok)
	{
		String throwaway = port.ReadExisting();
		if(throwaway != null && throwaway.Length > 0)
		{
			debug("<![" + port.ReadExisting() + "]]>"); // throw away
		}
		debug(">"+command);
		port.Write(command+"\r");
		
		Thread.Sleep(2); // sleep 2 secs
		int b = port.BytesToRead;
		ArrayList data  = new ArrayList();
		while(ok ||  b > 0)
		{
			b = port.BytesToRead;
			String line = port.ReadLine();
			debug("<"+line);
			data.Add(line);
			if(ok && line.StartsWith("ERROR"))
			{
				break;
			}
			if(ok && line[0] == 'O' && line[1] == 'K' && (line[2] == '\r' || line[2] == '\n'))
			{
				break;
			}
		}

		return (String[])data.ToArray(typeof(String));
	}

	public IDictionary ReadPhonebook(String type)
	{
		int start, end;
		int threshold = 8; // exit after these many continous blank entries
		Hashtable book = new Hashtable();
		ATCommand("AT+CPBS=\""+type+"\"");
		String[] data;
		data = ATCommand("AT+CPBR=?"); // list of data
		foreach(String s in data)
		{
			Match m = CPBR_STATUS_PATTERN.Match(s);
			if(m.Success)
			{
				start = Int32.Parse(m.Groups[1].Value);
				end = Int32.Parse(m.Groups[2].Value);
			}
		}
		for(; start < end && threshold > 0 ; start++)
		{
			Console.Write(type + " ............" + start +"   \r");
			data = ATCommand("AT+CPBR="+start);
			String name, number;
			bool valid = false;
			foreach(String s in data)
			{
				Match m = CPBR_DATA_PATTERN.Match(s);
				if(m.Success)
				{
					number = m.Groups[2].Value;
					name = m.Groups[4].Value;
					book[name] = number;
					valid = true;
					break;
				}
			}
			if(!valid)
			{
				threshold--;
			}
			else
			{
				threshold = (int)Math.Min((end - start)/20,8);
			}
		}
		Console.WriteLine();
		return book;
	}

	public static void debug(Object b)
	{
		Console.WriteLine(b);
	}
}