using System;

using hwo.bitworks.identity;

namespace hwo.bitworks.io
{
	public static class BitFormat
	{

		public static Int64 toInt64(LogicBase[] sources){
			Int64 i64 = 0;
			bool neg = sources[sources.Length-1].value();

			for (int n=0;n<64;n++){
				if (n < sources.Length){
					if (sources[n].value()){
						i64 |= (1L<<n);
					}
				} else {
					if (neg){
						i64 |= (1L<<n);
					}
				}
			}
			return i64;
		}

		public static string toString(LogicBase[] sources){
			char[] digits = new char[sources.Length + ((sources.Length-1) / 8)];
			int n2 = 0;

			for (int n=0;n<sources.Length;n++){
				int p = sources.Length - 1 - n;

				digits[n2++] = sources[p].value() ? '1' : '0';
				if ((p>0) && ((p%8) == 0)){
					digits[n2++] = ' ';
				}
			}
			return String.Format("{0}  {1,12:D} {1:x16}",new string(digits),toInt64(sources));
		}


		public static string whitespace(int n){
			char[] ws = new char[n];

			for (int i=0;i<n;i++){
				ws[i] = ' ';
			}

			return new string(ws);
		}

		public static void dumpBitIdentity(BitIdentity id){
			dumpBitIdentity(id,0);
		}
		public static void dumpBitIdentity(BitIdentity id,int intend){
			if (id.Sources == null){
				Console.WriteLine("{0} {1}",whitespace(intend*2),id.Name);
			} else {
				Console.WriteLine("{0} {1} {{",whitespace(intend*2),id.BitOperation.ToString());

				foreach (BitIdentity sub in id.Sources){
					dumpBitIdentity(sub,intend + 2);
				}
				Console.WriteLine("{0} }} // {1}",whitespace(intend*2),id.BitOperation.ToString());
			}

		}

	}
}