using System;
using System.Collections.Generic;
using System.Text.Json;
using System.Diagnostics;
using System.Linq;
using RainOpsMini.Helpers;

namespace RainOpsMini.Plugins
{
    public class TicketQueryConfig
    {
        /// <summary>
        /// 开启此插件
        /// </summary>
        public bool Enabled { get; set; } = false;

        /// <summary>
        /// 基础偏移量 
        /// </summary>
        public int BaseOffset { get; set; } = 0x0BE67B48;

        /// <summary>
        /// 阵营1基址偏移 (十进制)
        /// </summary>
        public List<int> Team1Offsets { get; set; } = new List<int> { 0x158, 0x408, 0x8, 0x2C0, 0x2B0 };

        /// <summary>
        /// 阵营2基址偏移 (十进制)
        /// </summary>
        public List<int> Team2Offsets { get; set; } = new List<int> { 0x158, 0x408, 0x10, 0x2C0, 0x2B0 };

        /// <summary>
        /// 游戏主程序路径  
        /// </summary>
        public string GameExePath { get; set; } = "./SquadGame/Binaries/Win64/SquadGameServer.exe";

        /// <summary>
        /// 自动发现的候选路径列表
        /// </summary>
        public List<string> CandidateGameExePaths { get; set; } = new List<string>();
    }

    public class TicketQueryPlugin : IPlugin, IDisposable
    {
        public string Name => "阵营票数查询";
        public string Description => "读取阵营票数，并支持动态修改内存偏移量配置";
        public PluginCategory Category => PluginCategory.BasicFunction;
        public bool IsEnabled => _config.Enabled;

        private TicketQueryConfig _config = new TicketQueryConfig();
        private Timer? _timer;
        private int _cachedTeam1Tickets;
        private int _cachedTeam2Tickets;

        public TicketQueryPlugin()
        {
            ApplyConfig();
        }

        public object GetConfig() => _config;

        public void UpdateConfig(JsonElement config)
        {
            var options = new JsonSerializerOptions
            {
                PropertyNameCaseInsensitive = true
            };
            _config = JsonSerializer.Deserialize<TicketQueryConfig>(config.GetRawText(), options) ?? new TicketQueryConfig();
            ApplyConfig();
        }

        public void ResetConfig()
        {
            _config = new TicketQueryConfig();
            ApplyConfig();
        }

        public void Dispose()
        {
            _timer?.Dispose();
        }

        private void ApplyConfig()
        {
            // 自动发现路径逻辑
            var candidates = DetectGameProcesses();
            _config.CandidateGameExePaths = candidates;

            // 如果当前配置为空，尝试自动填充
            if (string.IsNullOrEmpty(_config.GameExePath))
            {
                if (candidates.Count == 1)
                {
                    _config.GameExePath = candidates[0];
                }
                // 如果有多个，保留为空让用户选择（通过CandidateGameExePaths查看）
            }


            
            //检测是否相对路径
            if (_config.GameExePath.StartsWith("."))
            {
                _config.GameExePath = Path.GetFullPath(_config.GameExePath, Environment.CurrentDirectory);
            }
            MemoryExtraction.path = _config.GameExePath;

            if (_config.Team1Offsets != null && _config.Team2Offsets != null)
            {
                MemoryExtraction.UpdateOffsets(_config.BaseOffset, _config.Team1Offsets, _config.Team2Offsets);
            }

            // Manage timer based on Enabled state
            if (_config.Enabled)
            {
                StartTimer();
            }
            else
            {
                StopTimer();
            }
        }

        private void StartTimer()
        {
            if (_timer == null)
            {
                // Execute immediately, then every 10 seconds
                _timer = new Timer(OnTimerTick, null, 0, 10000);
            }
            else
            {
                _timer.Change(0, 10000);
            }
        }

        private void StopTimer()
        {
            _timer?.Change(Timeout.Infinite, Timeout.Infinite);
        }

        private void OnTimerTick(object? state)
        {
            try
            {
                if (!IsEnabled) return;
                
                // Read tickets and cache
                _cachedTeam1Tickets = MemoryExtraction.TickChange(1);
                _cachedTeam2Tickets = MemoryExtraction.TickChange(2);
            }
            catch (Exception ex)
            {
                RainOpsLog.Log($"[TicketQuery] 自动读取票数失败: {ex.Message}");
            }
        }

        private List<string> DetectGameProcesses()
        {
            var list = new List<string>();
            try
            {
                var currentDir = Environment.CurrentDirectory;
                // Normalize current directory path (ensure it ends with separator for proper check)
                if (!currentDir.EndsWith(Path.DirectorySeparatorChar.ToString()) && 
                    !currentDir.EndsWith(Path.AltDirectorySeparatorChar.ToString()))
                {
                    currentDir += Path.DirectorySeparatorChar;
                }

                var processes = Process.GetProcesses();
                foreach (var p in processes)
                {
                    try
                    {
                        if (p.MainModule != null && 
                            !string.IsNullOrEmpty(p.MainModule.FileName) && 
                            p.MainModule.FileName.StartsWith(currentDir, StringComparison.OrdinalIgnoreCase) &&
                            p.MainModule.FileName.IndexOf("SquadGame\\Binaries\\Win64", StringComparison.OrdinalIgnoreCase) >= 0)
                        {
                            list.Add(p.MainModule.FileName);
                        }
                    }
                    catch { }
                }
            }
            catch { }
            return list.Distinct().ToList();
        }

        public int GetTickets(int teamId)
        {
            if (!IsEnabled) return 0;
            // Return cached value instead of reading from memory every time
            return teamId == 1 ? _cachedTeam1Tickets : _cachedTeam2Tickets;
        }

        public int SetTickets(int teamId, int tickets)
        {
             if (!IsEnabled) return 0;
             int result = MemoryExtraction.TickChange(teamId, tickets);
             // Update cache immediately
             if (teamId == 1) _cachedTeam1Tickets = result;
             if (teamId == 2) _cachedTeam2Tickets = result;
             return result;
        }
    }
}