/*
 * 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;
using System.IO;
using Newtonsoft.Json;
using ShiftOS.Objects;
using static ShiftOS.Server.Program;
using NetSockets;

namespace ShiftOS.Server
{
    public static class LegionManager
    {
        [MudRequest("legion_createnew", typeof(Legion))]
        public static void CreateLegion(string guid, object contents)
        {
            List<Legion> legions = new List<Legion>();
            if (File.Exists("legions.json"))
                legions = JsonConvert.DeserializeObject<List<Legion>>(File.ReadAllText("legions.json"));

            var l = contents as Legion;
            bool legionExists = false;

            foreach (var legion in legions)
            {
                if (legion.ShortName == l.ShortName)
                    legionExists = true;
            }

            if (legionExists == false)
            {
                legions.Add(l);
                server.DispatchTo(new Guid(guid), new NetObject("test", new ServerMessage
                {
                    Name = "legion_create_ok",
                    GUID = "server"
                }));

            }
            else
            {
                server.DispatchTo(new Guid(guid), new NetObject("test", new ServerMessage
                {
                    Name = "legion_alreadyexists",
                    GUID = "server"
                }));
            }

            File.WriteAllText("legions.json", JsonConvert.SerializeObject(legions, Formatting.Indented));

        }

        [MudRequest("legion_get_all", null)]
        public static void GetAllLegions(string guid, object contents)
        {
            List<Legion> allLegions = new List<Legion>();

            if (File.Exists("legions.json"))
                allLegions = JsonConvert.DeserializeObject<List<Legion>>(File.ReadAllText("legions.json"));

            server.DispatchTo(new Guid(guid), new NetObject("alllegions", new ServerMessage
            {
                Name = "legion_all",
                GUID = "server",
                Contents = JsonConvert.SerializeObject(allLegions)
            }));

        }
        
        [MudRequest("legion_get_users", typeof(Legion))]
        public static void GetLegionUsers(string guid, object contents)
        {
            var lgn = contents as Legion;

            List<string> userIDs = new List<string>();

            foreach (var savfile in Directory.GetFiles("saves"))
            {
                try
                {
                    var savefilecontents = JsonConvert.DeserializeObject<Save>(File.ReadAllText(savfile));
                    if (savefilecontents.CurrentLegions.Contains(lgn.ShortName))
                    {
                        userIDs.Add($"{savefilecontents.Username}@{savefilecontents.SystemName}");
                    }
                }
                catch { }
            }

            server.DispatchTo(new Guid(guid), new NetObject("userlist", new ServerMessage
            {
                Name = "legion_users_found",
                GUID = "server",
                Contents = JsonConvert.SerializeObject(userIDs)
            }));

        }

        [MudRequest("user_get_legion", typeof(Save))]
        public static void GetUserLegion(string guid, object contents)
        {
            var userSave = contents as Save;

            if (File.Exists("legions.json"))
            {
                var legionList = JsonConvert.DeserializeObject<List<Legion>>(File.ReadAllText("legions.json"));
                foreach (var legion in legionList)
                {
                    if (userSave.CurrentLegions.Contains(legion.ShortName))
                    {
                        server.DispatchTo(new Guid(guid), new NetObject("reply", new ServerMessage
                        {
                            Name = "user_legion",
                            GUID = "server",
                            Contents = JsonConvert.SerializeObject(legion)
                        }));
                        return;
                    }
                }
            }

            server.DispatchTo(new Guid(guid), new NetObject("Sandwich", new ServerMessage //I don't like sandwiches. Have you ever seen me with a sandwich? Why would you think I'd want a sandwich?
            {
                Name = "user_not_found_in_legion",
                GUID = "server"
            }));

        }
    }
}