/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSim Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Reflection;
using System.Text;
using System.Threading;
using log4net;

namespace OpenSim.Framework.Console
{
    public class ConsoleBase
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        protected string prompt = "# ";

        public object ConsoleScene = null;

        /// <summary>
        /// The default prompt text.
        /// </summary>
        public string DefaultPrompt
        {
            set { m_defaultPrompt = value + "# "; }
            get { return m_defaultPrompt; }
        }
        protected string m_defaultPrompt;

        public ConsoleBase(string defaultPrompt)
        {
            DefaultPrompt = defaultPrompt;
        }

        /// <summary>
        /// derive an ansi color from a string, ignoring the darker colors.
        /// This is used to help automatically bin component tags with colors
        /// in various print functions.
        /// </summary>
        /// <param name="input">arbitrary string for input</param>
        /// <returns>an ansii color</returns>
        protected virtual ConsoleColor DeriveColor(string input)
        {
            return ConsoleColor.White;
        }

        /// <summary>
        /// Sends a warning to the current console output
        /// </summary>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Warn(string format, params object[] args)
        {
            WriteNewLine(ConsoleColor.Yellow, format, args);
        }

        /// <summary>
        /// Sends a warning to the current console output
        /// </summary>
        /// <param name="sender">The module that sent this message</param>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Warn(string sender, string format, params object[] args)
        {
            WriteNewLine(DeriveColor(sender), sender, ConsoleColor.Yellow, format, args);
        }

        /// <summary>
        /// Sends a notice to the current console output
        /// </summary>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Notice(string format, params object[] args)
        {
            WriteNewLine(ConsoleColor.White, format, args);
        }

        /// <summary>
        /// Sends a notice to the current console output
        /// </summary>
        /// <param name="sender">The module that sent this message</param>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Notice(string sender, string format, params object[] args)
        {
            WriteNewLine(DeriveColor(sender), sender, ConsoleColor.White, format, args);
        }
        /// <summary>
        /// Sends an error to the current console output
        /// </summary>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Error(string format, params object[] args)
        {
            WriteNewLine(ConsoleColor.Red, format, args);
        }

        /// <summary>
        /// Sends an error to the current console output
        /// </summary>
        /// <param name="sender">The module that sent this message</param>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Error(string sender, string format, params object[] args)
        {
            WriteNewLine(DeriveColor(sender), sender, ConsoleColor.Red, format, args);
        }

        /// <summary>
        /// Sends a status message to the current console output
        /// </summary>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Status(string format, params object[] args)
        {
            WriteNewLine(ConsoleColor.Blue, format, args);
        }

        /// <summary>
        /// Sends a status message to the current console output
        /// </summary>
        /// <param name="sender">The module that sent this message</param>
        /// <param name="format">The message to send</param>
        /// <param name="args">WriteLine-style message arguments</param>
        public void Status(string sender, string format, params object[] args)
        {
            WriteNewLine(DeriveColor(sender), sender, ConsoleColor.Blue, format, args);
        }

        [Conditional("DEBUG")]
        public void Debug(string format, params object[] args)
        {
            WriteNewLine(ConsoleColor.Gray, format, args);
        }

        [Conditional("DEBUG")]
        public void Debug(string sender, string format, params object[] args)
        {
            WriteNewLine(DeriveColor(sender), sender, ConsoleColor.Gray, format, args);
        }

        protected virtual void WriteNewLine(ConsoleColor senderColor, string sender, ConsoleColor color, string format, params object[] args)
        {
            WritePrefixLine(senderColor, sender);
            WriteConsoleLine(color, format, args);
        }

        protected virtual void WriteNewLine(ConsoleColor color, string format, params object[] args)
        {
            WriteConsoleLine(color, format, args);
        }

        protected virtual void WriteConsoleLine(ConsoleColor color, string format, params object[] args)
        {
            try
            {
                System.Console.WriteLine(format, args);
            }
            catch (ObjectDisposedException)
            {
            }
        }

        protected virtual void WritePrefixLine(ConsoleColor color, string sender)
        {
            try
            {
                sender = sender.ToUpper();

                System.Console.WriteLine("[" + sender + "] ");

                System.Console.Write("[");

                System.Console.Write(sender);

                System.Console.Write("] \t");
            }
            catch (ObjectDisposedException)
            {
            }
        }

        public virtual void LockOutput()
        {
        }

        public virtual void UnlockOutput()
        {
        }

        public virtual void Output(string text)
        {
            System.Console.WriteLine(text);
        }

        public string CmdPrompt(string p)
        {
            return ReadLine(String.Format("{0}: ", p), false, true);
        }

        public string CmdPrompt(string p, string def)
        {
            string ret = ReadLine(String.Format("{0} [{1}]: ", p, def), false, true);
            if (ret == String.Empty)
                ret = def;

            return ret;
        }

        // Displays a command prompt and returns a default value, user may only enter 1 of 2 options
        public string CmdPrompt(string prompt, string defaultresponse, List<string> options)
        {
            bool itisdone = false;
            string optstr = String.Empty;
            foreach (string s in options)
                optstr += " " + s;

            string temp = CmdPrompt(prompt, defaultresponse);
            while (itisdone == false)
            {
                if (options.Contains(temp))
                {
                    itisdone = true;
                }
                else
                {
                    System.Console.WriteLine("Valid options are" + optstr);
                    temp = CmdPrompt(prompt, defaultresponse);
                }
            }
            return temp;
        }

        // Displays a prompt and waits for the user to enter a string, then returns that string
        // (Done with no echo and suitable for passwords)
        public string PasswdPrompt(string p)
        {
            return ReadLine(p, false, false);
        }

        public virtual string ReadLine(string p, bool isCommand, bool e)
        {
            System.Console.Write("{0}", prompt);
            string cmdinput = System.Console.ReadLine();

            return cmdinput;
        }
    }
}