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

namespace Sog
{
    public enum AppRunMode
    {
        /// <summary>
        /// 初始，错误
        /// </summary>
        None = 0,

        /// <summary>
        /// 非代理模式
        /// 启动
        /// </summary>
        Run = 1,


        /// <summary>
        /// 代理模式
        /// 启动
        /// </summary>
        Start = 2,

        /// <summary>
        /// 代理模式
        /// 停服,注意保存数据
        /// </summary>
        Stop = 3,

        /// <summary>
        /// 代理模式
        /// 重新加载逻辑模块（XXXServer.dll）
        /// </summary>
        Hotfix = 4,

        /// <summary>
        /// 代理模式
        /// 重新加载配置
        /// </summary>
        ReloadConfig = 5,

        /// <summary>
        /// 代理模式
        /// 死亡测试，正式环境别用
        /// </summary>
        //DeadTest = 6,

        /// <summary>
        /// 重新加载cluster.json配置文件
        /// </summary>
        ReloadCluster = 7,

        /// <summary>
        /// 代理模式
        /// Gm指令，主要是GameServer使用
        /// </summary>
        GmCommand = 10,

        /// <summary>
        /// 工具模式
        /// hotfix检查， 检查协议是否有修改，有修改则不能hotfix，免得引起运营事故
        /// </summary>
        HotfixCheck = 12,
    }

    public class AppParam
    {
        public uint ServerID { get; private set; } //服务器inst 拼合id，
        public string ConfigFileName { get; set; } 
        public string ClusterFileName { get; private set; } //args 里面的配置文件名
        public SogServerConfig ServerConfig { get; private set; }
        public AppRunMode RunMode { get; private set; }
        public bool forceHotfix { get; private set; }
        public string CommandAllText { get; private set; }
        public string[] Args { get; private set; }
        public string hotfixcheckDllFileFullName { get; private set; }
        public AppParam(string[] args)
        {
            Args = args;

            //缺省
            //在SogLoader里需要判断
            RunMode = AppRunMode.None;

            Parse(args);

            Check();
        }

        /*
         * 不进行校验，特殊服务器使用，比如ServerManager
         */
        public AppParam(string[] args, bool noCheck)
        {
            Args = args;

            //缺省
            //在SogLoader里需要判断
            RunMode = AppRunMode.None;

            Parse(args);
        }

        public void Parse(string[] args)
        {
            int count = args.Length;

            for(int i=0; i<count; i++)
            {
                ParseOne(args[i]);

                if(RunMode == AppRunMode.GmCommand)
                {
                    ProcessGmCmd(args, i);

                    return;

                }
            }
        }

        private void ParseOne(string arg)
        {
            string command = arg.Trim();

            // 服务器启动模式
            if (command.Contains("=") == false)
            {
                if(RunMode == AppRunMode.ReloadConfig)
                {
                    CommandAllText += " " + command;
                    return;
                }

                if ("run" == command)
                {
                    RunMode = AppRunMode.Run;
                    CommandAllText = command;
                }
                if ("start" == command)
                {
                    RunMode = AppRunMode.Start;
                    CommandAllText = command;
                }
                else if ("stop" == command)
                {
                    RunMode = AppRunMode.Stop;
                    CommandAllText = command;
                }
                else if ("hotfix" == command)
                {
                    RunMode = AppRunMode.Hotfix;
                    CommandAllText = command;
                }
                else if ("reloadconfig" == command)
                {
                    RunMode = AppRunMode.ReloadConfig;
                    CommandAllText = command;
                }
                else if("gmcmd" == command)
                {
                    RunMode = AppRunMode.GmCommand;
                    CommandAllText = command;
                }                
				else if("reloadcluster" == command)
                {
	                RunMode = AppRunMode.ReloadCluster;
	                CommandAllText = command;
                }
                else if ("force" == command)
                {
                    //强制hotfix，防止某些时候不小心搞得没法hotfix，但是可以人工确定是安全的
                    forceHotfix = true;
                    RunMode = AppRunMode.Hotfix;
                }

                return;
            }

            // 服务器启动参数 比如 --id=1.1.1
            // xx=xxx

            string[] pair = command.Split('=');
            string key = pair[0].Trim();
            string value = pair[1].Trim();

            if(String.IsNullOrEmpty(key) || String.IsNullOrEmpty(value))
            {
                return;
            }

            key = key.Trim();
            value = value.Trim();
            if (String.IsNullOrEmpty(key) || String.IsNullOrEmpty(value))
            {
                return;
            }

            if("--id" == key || "id" == key)
            {
                ServerID = ServerIDUtils.IDToNumber(value);
            }          
            else if ("--cluster" == key || "cluster" == key)
            {
                ClusterFileName = value;
            }
            else if ("QuestMethod.Nonetfixcheck" == key || "hotfixcheck" == key)
            {
                hotfixcheckDllFileFullName = value;
                RunMode = AppRunMode.HotfixCheck;
                CommandAllText = command;
            }
        }

        private void Check()
        {
            if(ServerID == 0)
            {
                // no log here
                string message = "invalid appid,please use id=x.x.x when start server";
                Console.WriteLine(message);
                throw new Exception(message);
            }
        }

        private void ProcessGmCmd(string[] args, int index)
        {
            if (args.Length < index + 2)
            {
                string message = "invalid gmcmd,no cmd, use SogLoader --id=1.1.1 --config=xxx.json --cluster=xxx.json gmcmd cmd cmdparam1 cmdparam2";
                Console.WriteLine(message);
                throw new Exception(message);
            }

            if (args[index] != "gmcmd")
            {
                string message = "invalid gmcmd,must be first param,use SogLoader --id=1.1.1 --config=xxx.json --cluster=xxx.json gmcmd cmdparam1 cmdparam2";
                Console.WriteLine(message);
                throw new Exception(message);
            }

            index++;
            string cmd = args[index];

            //string[] gmcmd_params = new string[args.Length - 2];

            CommandAllText = "gmcmd " + cmd;

            index++;
            for (; index < args.Length; index++)
            {
                CommandAllText += " ";
                CommandAllText += args[index];
            }
        }

        public void Reload()
        {
            LoadServerConfig();
        }

        public void LoadServerConfig()
        {
            //读取文件
            SogServerConfig config = null;

            //这里有可能出错,先保存到临时变量
            config = JsonConfig.parseFile<SogServerConfig>(ConfigFileName);
            
            if(config == null)
            {
                Console.WriteLine("SogServerConfig ConfigFileName {0} read failed", ConfigFileName);

            }
            else
            {
                ServerConfig = config;
                //转化格式
                ServerConfig.ReplaceFormatString(ServerID);
            }

        }
    }
}