// Author: Simon Gockner
// Created: 2020-02-08
// Copyright(c) 2020 SimonG. All Rights Reserved.

using System;

namespace GBase.Api.Communication
{
    /// <summary>
    /// The protocol used for the connection between client and server
    /// </summary>
    public enum ServerProtocol //TODO: Decide which protocols should be usable
    {
        /// <summary>
        /// Http connection
        /// </summary>
        Http,

        /// <summary>
        /// Https connection
        /// </summary>
        Https,

        /// <summary>
        /// net.tcp connection
        /// </summary>
        Tcp
    }

    /// <summary>
    /// Extension methods for the <see cref="ServerProtocol"/> enum
    /// </summary>
    public static class ServerProtocolExtensions
    {
        /// <summary>
        /// Get a protocol string for a <see cref="ServerProtocol"/>
        /// </summary>
        /// <param name="protocol">The <see cref="ServerProtocol"/></param>
        /// <returns>A protocol string for the <see cref="ServerProtocol"/></returns>
        /// <exception cref="ArgumentOutOfRangeException">Invalid protocol passed.</exception>
        public static string GetProtocolString(this ServerProtocol protocol)
        {
            switch (protocol)
            {
                case ServerProtocol.Http:
                    return @"http://";
                case ServerProtocol.Https:
                    return @"https://";
                case ServerProtocol.Tcp:
                    return @"net.tcp://";
                default:
                    throw new ArgumentOutOfRangeException(nameof(protocol), protocol, "Invalid Protocol");
            }
        }

        /// <summary>
        /// Get the <see cref="ServerProtocol"/> for a given <see cref="string"/>
        /// </summary>
        /// <param name="string">The given <see cref="string"/></param>
        /// <returns>The <see cref="ServerProtocol"/> for the given <see cref="string"/></returns>
        /// <exception cref="ArgumentOutOfRangeException">Invalid string passed.</exception>
        public static ServerProtocol GetServerProtocolFromString(string @string)
        {
            if (@string.Equals(@"http://") || @string.Equals("http"))
                return ServerProtocol.Http;
            else if (@string.Equals(@"https://") || @string.Equals("https"))
                return ServerProtocol.Https;
            else if (@string.Equals(@"net.tcp://") || @string.Equals("net.tcp") || @string.Equals("tcp"))
                return ServerProtocol.Tcp;
            else
                throw new ArgumentOutOfRangeException(nameof(@string), @string, "Invalid string.");
        }
    }
}