/*
* 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.
*/
using System;
using Result = com.google.zxing.Result;
namespace com.google.zxing.client.result
{
	
	/// <summary> Parses a "tel:" URI result, which specifies a phone number.
	/// 
	/// </summary>
	/// <author>  Sean Owen
	/// </author>
	/// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source 
	/// </author>
	sealed class TelResultParser:ResultParser
	{
		
		private TelResultParser()
		{
		}
		
		public static TelParsedResult parse(Result result)
		{
			System.String rawText = result.Text;
			if (rawText == null || (!rawText.StartsWith("tel:") && !rawText.StartsWith("TEL:")))
			{
				return null;
			}
			// Normalize "TEL:" to "tel:"
			System.String telURI = rawText.StartsWith("TEL:")?"tel:" + rawText.Substring(4):rawText;
			// Drop tel, query portion
			//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
			int queryStart = rawText.IndexOf('?', 4);
			System.String number = queryStart < 0?rawText.Substring(4):rawText.Substring(4, (queryStart) - (4));
			return new TelParsedResult(number, telURI, null);
		}
	}
}