/*
 * MIT License
 * 
 * Copyright (c) 2017 Michael VanOverbeek and ShiftOS devs
 * 
 * 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.
 */

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

namespace ShiftOS.Engine
{
    public class Command : Attribute
    {
        public string name;
        public string description = "";
        public string usage = "";
        public bool hide = false;

        public Command(string name)
        {
            this.name = name;
        }
        public Command(string name, bool hide)
        {
            this.name = name;
            this.hide = hide;
        }
        public Command(string name, string usage, string description)
        {
            this.name = name;
            this.description = description;
            this.usage = usage;
        }
    }

    public class RequiresUpgradeAttribute : Attribute
    {
        public string Upgrade { get; set; }
        public bool Installed
        {
            get
            {
                if (Upgrade.Contains(";"))
                {
                    string[] split = Upgrade.Split(';');
                    foreach (var upg in split)
                    {
                        if (!Shiftorium.UpgradeInstalled(upg))
                            return false;
                    }
                    return true;
                }
                else
                {
                    return Shiftorium.UpgradeInstalled(Upgrade);
                }
            }
        }

        /// <summary>
        /// Marks this Form or Command as dependant on this upgrade.
        /// </summary>
        /// <param name="upg">Upgrade ID - See 'shiftorium.json' in resources for all IDs and their metadata.</param>
        public RequiresUpgradeAttribute(string upg)
        {
            Upgrade = upg;
        }
    }

    public class Namespace : Attribute
    {
        public string name;
        public bool hide;
        public Namespace(string n)
        {
            name = n;
        }
        public Namespace(string n, bool hide)
        {
            name = n;
            this.hide = hide;
        }
    }

    [AttributeUsage(AttributeTargets.Method)]
    public class CommandObsolete : Attribute
    {
        public string reason;
        public string newcommand;
        public bool warn;

        public CommandObsolete(string reason, string newcommand, bool warn)
        {
            this.reason = reason; // %n for newcommand
            this.newcommand = newcommand;
            this.warn = warn;
        }
    }

    [AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
    public class RequiresArgument : Attribute
    {
        public string argument;

        public RequiresArgument(string argument)
        {
            this.argument = argument;
        }

        public override object TypeId
        {
            get
            {
                return this;
            }
        }
    }

    [AttributeUsage(AttributeTargets.Method, AllowMultiple = false)]
    public class RemoteLockAttribute : Attribute
    {
        /// <summary>
        /// When used on a terminal command, it will prevent that command from being invoked by a remote user (over MUD terminal forwarding).
        /// </summary>
        public RemoteLockAttribute() { }
    }
}