using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net.Http;
using System.Net.NetworkInformation;
using System.Net;
using System.Runtime.InteropServices;
using System.Security.Policy;
using System.Text;
using System.Text.Json.Nodes;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Text.Json;
using Microsoft.Extensions.Logging;
using System.IO;
using Microsoft.Extensions.Configuration;
using System.Management;
using System.Net.Http.Json;
namespace TEAMModelOS.SDK
{
    public static class DeviceHelper
    {
        public static async Task<ClientDevice> GetClientInfo(IHttpClientFactory _httpClientFactory, ILogger _logger, IEnumerable<string>? _url)
        {
            string hostName = $"{Environment.UserName}-{Dns.GetHostName()}";
            string os = RuntimeInformation.OSDescription;
            //获取当前客户端的服务端口
            var _httpClient = _httpClientFactory.CreateClient();
            ClientDevice device = new ClientDevice { name =hostName, os= os };
            HttpResponseMessage message = await _httpClient.PostAsJsonAsync("https://www.teammodel.cn/core/system-info", new { });
            if (message.IsSuccessStatusCode)
            {
                JsonNode? json = JsonSerializer.Deserialize<JsonNode>(await message.Content.ReadAsStringAsync());
                var ip = json?["ip"];
                var region = json?["region"];
                _logger.LogInformation($"远程地址：{ip}");
                _logger.LogInformation($"所属地区：{region}");
                device.remote=ip?.ToString();
                device.region=region?.ToString();
            }
            _logger.LogInformation($"计算机名：{hostName}");
            _logger.LogInformation($"系统名称：{RuntimeInformation.OSDescription}");
            int CpuCoreCount = 0;
            long MenemorySize = 0;
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                // 获取CPU核心数
                //int processorCount = Environment.ProcessorCount;
                //Console.WriteLine("CPU 核心数: " + processorCount);
                using (ManagementClass managementClass = new ManagementClass("Win32_Processor"))
                {
                    using (ManagementObjectCollection managementObjectCollection = managementClass.GetInstances())
                    {
                        foreach (ManagementObject managementObject in managementObjectCollection)
                        {
                            CpuCoreCount += Convert.ToInt32(managementObject.Properties["NumberOfLogicalProcessors"].Value);
                        }
                    }
                }
                using (ManagementClass mc = new ManagementClass("Win32_ComputerSystem"))
                {
                    using (ManagementObjectCollection moc = mc.GetInstances())
                    {
                        foreach (ManagementObject mo in moc)
                        {
                            if (mo["TotalPhysicalMemory"]!= null)
                            {
                                MenemorySize = Convert.ToInt64(mo["TotalPhysicalMemory"]);
                            }
                        }
                    }
                }
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                //int processorCount = Environment.ProcessorCount;
                // Console.WriteLine("CPU 核心数: " + processorCount);
                string[] cpu_lines = File.ReadAllLines("/proc/cpuinfo");
                CpuCoreCount= cpu_lines.Count(line => line.StartsWith("processor", StringComparison.OrdinalIgnoreCase));
                string[] mem_lines = File.ReadAllLines("/proc/meminfo");
                var match = mem_lines.FirstOrDefault(line => line.StartsWith("MemTotal:"));
                if (match != null)
                {
                    var matchResult = Regex.Match(match, @"\d+");
                    if (matchResult.Success)
                    {
                        MenemorySize=  long.Parse(matchResult.Value);
                    }
                }
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                using (var process = new Process())
                {
                    process.StartInfo.FileName = "/usr/sbin/sysctl";
                    process.StartInfo.Arguments = "-n hw.ncpu";
                    process.StartInfo.RedirectStandardOutput = true;
                    process.StartInfo.UseShellExecute = false;
                    process.Start();
                    string output = process.StandardOutput.ReadToEnd().Trim();
                    int coreCount;
                    if (int.TryParse(output, out coreCount))
                    {
                        CpuCoreCount= coreCount;
                    }
                }
                using (var process = new Process())
                {
                    process.StartInfo.FileName = "/usr/sbin/sysctl";
                    process.StartInfo.Arguments = "-n hw.memsize";
                    process.StartInfo.RedirectStandardOutput = true;
                    process.StartInfo.UseShellExecute = false;
                    process.Start();
                    string output = process.StandardOutput.ReadToEnd().Trim();
                    long memorySize;
                    if (long.TryParse(output, out memorySize))
                    {
                        MenemorySize=  memorySize;
                    }
                }
            }

            //Console.WriteLine("CPU 核心数: " + CpuCoreCount+",RAM 大小："+MenemorySize);
            _logger.LogInformation($"内存大小：{MenemorySize}");
            _logger.LogInformation($"核心数量：{CpuCoreCount}");
            device.cpu=CpuCoreCount;
            device.ram=MenemorySize;
            var nics = NetworkInterface.GetAllNetworkInterfaces();
            foreach (var nic in nics)
            {
                if (nic.OperationalStatus == OperationalStatus.Up)
                {
                    var name = $"{nic.Name}-{nic.Description}";
                    var mac = nic.GetPhysicalAddress().ToString();
                    var properties = nic.GetIPProperties();
                    var unicastAddresses = properties.UnicastAddresses;
                    foreach (var unicast in unicastAddresses)
                    {
                        if (unicast.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
                        {
                            var ip = unicast.Address.ToString();
                            Network network = new Network() { mac=mac, ip=ip, name= name };
                            if (!string.IsNullOrWhiteSpace(mac.ToString())  && !mac.Equals("000000000000"))
                            {
                                device.networks.Add(network);
                                _logger.LogInformation($"网卡名称: {name}");
                                _logger.LogInformation($"网卡地址: {mac}");
                                _logger.LogInformation($"内网地址: {ip}");
                            }
                        }
                    }
                }
            }
            if (_url!.IsNotEmpty())
            {
                List<int> ports = new List<int>();
                foreach (var url in _url)
                {
                    Uri uri = new Uri(url);
                    ports.Add(uri.Port);
                }
                device.port= string.Join(",", ports);
                _logger.LogInformation($"占用端口: {device.port}");
            }
            else {
                throw new Exception("未获取到端口信息！");
            }
            string hashData = ShaHashHelper.GetSHA1($"{device.name}-{device.remote}-{device.port}-{device.os}-{string.Join(",", device.networks.Select(x => $"{x.mac}-{x.ip}"))}");
            device.deviceId=hashData;
            return device;
        }
    }
}