// Abstract Handler
//
// Douglas Thrift
//
// AbstractHandler.cs

/*  Copyright 2013 Douglas Thrift
 *
 *  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 System.IO;

public abstract class AbstractHandler
{
    protected string FindInPath(string program)
    {
        foreach (string location in Environment.GetEnvironmentVariable("PATH").Split(Path.PathSeparator))
        {
            string path = Path.Combine(location, program);
            if (File.Exists(path))
                return path;
        }

        return null;
    }

    protected void SetYesNoValue(string input, out AutoYesNoOption option, out string value)
    {
        value = null;

        switch (input.ToLowerInvariant())
        {
        case "yes":
            option = AutoYesNoOption.Yes;
            break;
        case "no":
            option = AutoYesNoOption.No;
            break;
        default:
            value = input;
            goto case "yes";
        }
    }
}