module firebird_dbkey;
private import ibase;
/*
private import firebird_util;
private import firebird_database;
private import firebird_date;
private import firebird_transaction;
private import std.c.string;
*/

private import std.math;

	class DBKey
	{
	private:
		string mDBKey; // Stores the binary DBKey
		string mString;// String(temporary) representation of it

	public:
		void Clear() {
			mDBKey.length = 0;
			mString.length = 0;
		}
		int Size() { return cast(int)mDBKey.length; }
		void SetKey(void *key, int size) {
			if(key == null)
				throw new Exception("DBKey::SetKey  Null DBKey reference detected.");
			if(size <= 0 ||((size >> 3) << 3) != size)
				throw new Exception("DBKey::SetKey  Invalid DBKey size.");
			mDBKey.length = size;
      mDBKey = cast(string)key[0..size].idup;
			mString.length = 0;
		}
		void GetKey(void* key, int size) {
			if(mDBKey.length == 0)
				throw new Exception("DBKey::GetKey  DBKey not assigned.");
			if(key == null)
				throw new Exception("DBKey::GetKey  Null DBKey reference detected.");
			if(size != cast(int)mDBKey.length)
				throw new Exception("DBKey::GetKey  Incompatible DBKey size detected.");
			//mDBKey.copy(cast(char*)key, mDBKey.length);
      key = cast(void*) mDBKey.idup;
		}
		string AsString()	{
			if(mDBKey.length == 0)
				throw new Exception("DBKey::GetString  DBKey not assigned.");
/*
			if(mString.length == 0)
			{
				string hexkey;
 				hexkey.setf(std::ios::hex, std::ios::basefield);
 				hexkey.setf(std::ios::uppercase);
 				const uint* key = reinterpret_cast<const uint*>(mDBKey.data());
 				int n = cast(int)mDBKey.length / 8;
 				for(int i = 0; i < n; i++)
 				{
 					if(i != 0) hexkey<< "-";
 					hexkey<< std::setw(4)<< key[i*2]<< ":";
 					hexkey<< std::setw(8)<< key[i*2+1];
 				}
 				mString = hexkey.str();
 			}
*/
			return mString;
		}
		this(ref DBKey copied) {
			mDBKey = copied.mDBKey;
			mString = copied.mString;
		}
		DBKey opAssign(DBKey *assigned)	{
			mDBKey = assigned.mDBKey;
			mString = assigned.mString;
			return this;
		}
		this() { }
		~this() { }
	};