#region KotikoBlog Header License

// // Solution: Curriculum
// // Project: Curriculum.CoreUtils
// //
// // This file is included in the Curriculum solution.
// //
// // File created on 16/01/2016   23:10
// //
// // File Modified on 16/01/2016/   23:10
// 
// // Permission is hereby granted, free of charge, to any person obtaining a copy
// // of this software and associated documentation files (the "Software"), to deal
// // in the Software without restriction, including without limitation the rights
// // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// // copies of the Software, and to permit persons to whom the Software is
// // furnished to do so, subject to the following conditions:
// //
// // The above copyright notice and this permission notice shall be included in all
// // copies or substantial portions of the Software.
// //
// // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// // SOFTWARE.

#endregion

#region

using System;

#endregion

namespace Curriculum.CoreUtils.Security
{
    /// <summary>
    /// </summary>
    public class PassGenerator
    {
        /// <summary>
        /// </summary>
        private static readonly Random Random = new Random();

        /// <summary>
        /// </summary>
        /// <param name="passwordLength"></param>
        /// <param name="strongPassword"></param>
        /// <returns></returns>
        public static string PasswordGenerator(int passwordLength, bool strongPassword)
        {
            var seed = Random.Next(1, int.MaxValue);
            //const string allowedChars = "ABCDEFGHJKLMNOPQRSTUVWXYZ0123456789";
            const string allowedChars = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ0123456789";
            const string specialCharacters = @"!#$%&'()*+,-./:;<=>?@[\]_";

            var chars = new char[passwordLength];
            var datata = "";
            var rd = new Random(seed);

            for (var i = 0; i < passwordLength; i++)
            {
                // If we are to use special characters
                if (strongPassword && i%Random.Next(3, passwordLength) == 0)
                {
                    chars[i] = specialCharacters[rd.Next(0, specialCharacters.Length)];
                }
                else
                {
                    chars[i] = allowedChars[rd.Next(0, allowedChars.Length)];
                }
            }

            return new string(chars);
        }
    }
}