using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Developpez.Dotnet.Security.Cryptography
{
    /// <summary>Encrypt or decrypt a file or content</summary>
    public interface ICrypting
    {
        // Properties
        /// <summary>Secret key</summary>
        byte[] RgbKey { set; }
        /// <summary>Initialisation vector</summary>
        byte[] RgbIV { set; }

        // Encrypting
        /// <summary>Encrypt an object by using DES encrypting</summary>
        /// <param name="objectToEncrypt">Object to encrypt</param>
        /// <returns>Encrypted text</returns>
        string EncryptContent(object objectToEncrypt);
        /// <summary>Encrypt a file and replace its content</summary>
        /// <param name="path">Path of the file</param>
        void Encrypt(string path);
        /// <summary>Encrypt an non-crypted file into a new one</summary>
        /// <param name="pathInput">Path of the input file</param>
        /// <param name="pathOutput">Path of the output file</param>
        void Encrypt(string pathInput, string pathOutput);

        // Decrypting
        /// <summary>
        /// Decrypt a text.
        /// Example:
        /// <code>
        /// var decrypter = new DESCrypting("abcd", "efgh");
        /// var xdocument = XDocument.Parse(decrypter.DecryptContent(File.OpenText("FilePath").ReadToEnd));
        /// </code>
        /// </summary>
        /// <param name="encryptedtext">Encrypted text</param>
        /// <returns>Decrypted text</returns>
        string DecryptContent(string encryptedtext);
        /// <summary>Decrypt a file and replace its content</summary>
        /// <param name="path">Path of the file</param>
        void Decrypt(string path);
        /// <summary>Decrypt an encrypted file into a new one</summary>
        /// <param name="pathInput">Path of the input file</param>
        /// <param name="pathOutput">Path of the output file</param>
        void Decrypt(string pathInput, string pathOutput);
    }
}