using SanAndreasUnity.Behaviours;
using SanAndreasUnity.Net;
using SanAndreasUnity.Utilities;
using UnityEngine;

namespace SanAndreasUnity.Commands
{
    public class CoreCommands : MonoBehaviour
    {
        void Start()
        {
            var commands = new CommandManager.CommandInfo[]
            {
                new CommandManager.CommandInfo("uptime", true),
                new CommandManager.CommandInfo("players", true),
                new CommandManager.CommandInfo("kick", false),
                new CommandManager.CommandInfo("startserver", false),
                new CommandManager.CommandInfo("starthost", false),
                new CommandManager.CommandInfo("connect", false),
                new CommandManager.CommandInfo("exit", false),
                new CommandManager.CommandInfo("camera_disable", false),
            };

            foreach (var immutableCmd in commands)
            {
                var cmd = immutableCmd;
                cmd.commandHandler = ProcessCommand;
                CommandManager.Singleton.RegisterCommand(cmd);
            }
        }

        CommandManager.ProcessCommandResult ProcessCommand(CommandManager.ProcessCommandContext context)
        {
            string command = context.command;
            string[] words = CommandManager.SplitCommandIntoArguments(command);
            int numWords = words.Length;
            string restOfTheCommand = CommandManager.GetRestOfTheCommand(command, 0);

            string response = "";


            if (2 == numWords && words[0] == "camera_disable")
            {
                int cameraDisable = int.Parse(words[1]);

                var cam = F.FindMainCameraEvenIfDisabled();

                if (cam != null)
                {
                    if (0 == cameraDisable)
                    {
                        cam.enabled = true;
                    }
                    else if (1 == cameraDisable)
                    {
                        cam.enabled = false;
                    }
                    else
                    {
                        response += "Invalid value. Use 0 or 1.";
                    }
                }
            }
            else if (words[0] == "uptime")
            {
                response += F.FormatElapsedTime(Time.realtimeSinceStartup);
            }
            else if (words[0] == "players")
            {
                // list all players

                response += "net id";
                if (NetUtils.IsServer && context.hasServerPermissions)
                    response += " | ip";
                response += "\n";

                foreach (var player in Player.AllPlayersEnumerable)
                {
                    response += player.netId;
                    if (NetUtils.IsServer && context.hasServerPermissions)
                        response += " | " + player.connectionToClient.address;
                    response += "\n";
                }
            }
            else if (words[0] == "kick")
            {
                if (NetUtils.IsServer)
                {
                    uint netId = uint.Parse(words[1]);
                    var p = Player.GetByNetId(netId);
                    if (null == p)
                    {
                        response += "There is no such player connected.";
                    }
                    else
                    {
                        p.Disconnect();
                    }
                }
            }
            else if (words[0] == "startserver" || words[0] == "starthost")
            {
                ushort portNumber = (ushort) NetManager.defaultListenPortNumber;

                if (numWords > 1)
                    portNumber = ushort.Parse(words[1]);

                if (words[0] == "startserver")
                    NetManager.StartServer(portNumber);
                else
                    NetManager.StartHost(portNumber);
            }
            else if (words[0] == "connect")
            {
                if (numWords != 3)
                {
                    response += CommandManager.invalidSyntaxText;
                }
                else
                {
                    string ip = words[1];
                    int port = int.Parse(words[2]);

                    NetManager.StartClient(ip, port);
                }
            }
            else if (words[0] == "exit")
            {
                GameManager.ExitApplication();
            }

            return new CommandManager.ProcessCommandResult {response = response};
        }
    }
}