using System.Collections.Generic;

/*
 * Copyright 2008 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace com.google.zxing.client.result
{

	using Result = com.google.zxing.Result;


	/// <summary>
	/// Implements the "BIZCARD" address book entry format, though this has been
	/// largely reverse-engineered from examples observed in the wild -- still
	/// looking for a definitive reference.
	/// 
	/// @author Sean Owen
	/// </summary>
	public sealed class BizcardResultParser : AbstractDoCoMoResultParser
	{

	  // Yes, we extend AbstractDoCoMoResultParser since the format is very much
	  // like the DoCoMo MECARD format, but this is not technically one of 
	  // DoCoMo's proposed formats

	  public override ParsedResult parse(Result result)
	  {
		string rawText = getMassagedText(result);
		if (!rawText.StartsWith("BIZCARD:"))
		{
		  return null;
		}
		string firstName = matchSingleDoCoMoPrefixedField("N:", rawText, true);
		string lastName = matchSingleDoCoMoPrefixedField("X:", rawText, true);
		string fullName = buildName(firstName, lastName);
		string title = matchSingleDoCoMoPrefixedField("T:", rawText, true);
		string org = matchSingleDoCoMoPrefixedField("C:", rawText, true);
		string[] addresses = matchDoCoMoPrefixedField("A:", rawText, true);
		string phoneNumber1 = matchSingleDoCoMoPrefixedField("B:", rawText, true);
		string phoneNumber2 = matchSingleDoCoMoPrefixedField("M:", rawText, true);
		string phoneNumber3 = matchSingleDoCoMoPrefixedField("F:", rawText, true);
		string email = matchSingleDoCoMoPrefixedField("E:", rawText, true);

		return new AddressBookParsedResult(maybeWrap(fullName), null, buildPhoneNumbers(phoneNumber1, phoneNumber2, phoneNumber3), null, maybeWrap(email), null, null, null, addresses, null, org, null, title, null);
	  }

	  private static string[] buildPhoneNumbers(string number1, string number2, string number3)
	  {
		List<string> numbers = new List<string>(3);
		if (number1 != null)
		{
		  numbers.Add(number1);
		}
		if (number2 != null)
		{
		  numbers.Add(number2);
		}
		if (number3 != null)
		{
		  numbers.Add(number3);
		}
		int size = numbers.Count;
		if (size == 0)
		{
		  return null;
		}
		return numbers.ToArray();
	  }

	  private static string buildName(string firstName, string lastName)
	  {
		if (firstName == null)
		{
		  return lastName;
		}
		else
		{
		  return lastName == null ? firstName : firstName + ' ' + lastName;
		}
	  }

	}

}