using Microsoft.Data.SqlClient;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using Npgsql;
using Oracle.ManagedDataAccess.Client;
using Shentun.Utilities;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Linq.Dynamic.Core.Tokenizer;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;

namespace Shentun.WebPeis.PlugIns
{
    public class PlugInsBase
    {
        protected IConfiguration? AppConfig;
        protected IConfiguration? InterfaceConfig;
        protected string? AppConnctionStr;
        private string? _appBaseAddress;
        private static string? _accesToken;
        protected string? AppUser;
        protected string? AppPassword;

        protected string? InterfaceSql;
        protected string? InterfaceSqlKeyColumn;
        protected string? InterfaceDbType;
        protected string? InterfaceConnctionStr;

        protected string? InterfaceWebApiUrl;

        protected Guid ItemColumnReferenceId;
        protected Guid AsbitemColumnReferenceId;
        protected Guid DepartmentColumnReferenceId;
        protected Guid UserColumnReferenceId;
        protected ILogger<PlugInsBase> Logger;
        static PlugInsBase()
        {
            Dapper.DefaultTypeMap.MatchNamesWithUnderscores = true;
        }
        public PlugInsBase()
        {
            Init();
        }
        
        public PlugInsBase(string parmValue)
        {
            Init();

            Init(parmValue);

        }
        public void Init()
        {
            AppConfig = new ConfigurationBuilder()
           .SetBasePath(DirectoryHelper.GetAppDirectory()) // 设置基础路径为当前目录
           .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
           .Build();
            AppConnctionStr = AppConfig.GetSection("ConnectionStrings")
                .GetSection("Default").Value;
            _appBaseAddress = AppConfig.GetSection("App")
                .GetSection("SelfUrl").Value;
            AppUser = AppConfig.GetSection("App")
               .GetSection("SelfUser").Value;
            AppPassword = AppConfig.GetSection("App")
               .GetSection("SelfPassword").Value;

            using var loggerFactory = LoggerFactory.Create(builder =>
            {

            });
            Logger = loggerFactory.CreateLogger<PlugInsBase>();
        }
        public void Init(string parmValue)
        {
            var configurationBuilder = new ConfigurationBuilder()
              .AddJsonStream(new MemoryStream(System.Text.Encoding.UTF8.GetBytes(parmValue)));
            InterfaceConfig = configurationBuilder.Build();
            //如果接口配置里面配置了用户名密码，则用接口中的覆盖本地配置
            var appUser = InterfaceConfig.GetSection("App").GetSection("User").Value;
            if(!string.IsNullOrWhiteSpace(appUser))
            {
                AppUser = appUser;
            }
            var appPassword = InterfaceConfig.GetSection("App").GetSection("Password").Value;
            if (!string.IsNullOrWhiteSpace(appPassword))
            {
                AppPassword = appPassword;
            }
            //设置接口有关配置
            InterfaceSql = InterfaceConfig.GetSection("Interface").GetSection("Sql").Value;
            InterfaceSqlKeyColumn = InterfaceConfig.GetSection("Interface").GetSection("SqlKeyColumn").Value;
            InterfaceDbType = InterfaceConfig.GetSection("Interface").GetSection("DbType").Value;
            InterfaceWebApiUrl = InterfaceConfig.GetSection("Interface").GetSection("WebApiUrl").Value;

            InterfaceConnctionStr = InterfaceConfig.GetSection("Interface").GetSection("ConnectionStrings").Value;

            var itemColumnReferenceIdStr = InterfaceConfig.GetSection("Interface")
                 .GetSection("ItemColumnReferenceId").Value;
            if (!string.IsNullOrWhiteSpace(itemColumnReferenceIdStr))
            {
                ItemColumnReferenceId = new Guid(itemColumnReferenceIdStr);
            }

            var asbItemColumnReferenceIdStr = InterfaceConfig.GetSection("Interface")
                .GetSection("AsbitemColumnReferenceId").Value;
            if (!string.IsNullOrWhiteSpace(asbItemColumnReferenceIdStr))
            {
                AsbitemColumnReferenceId = new Guid(asbItemColumnReferenceIdStr);
            }

            var departmentColumnReferenceIdStr = InterfaceConfig.GetSection("Interface")
                 .GetSection("DepartmentColumnReferenceId").Value;
            if (!string.IsNullOrWhiteSpace(departmentColumnReferenceIdStr))
            {
                DepartmentColumnReferenceId = new Guid(departmentColumnReferenceIdStr);
            }

            var userColumnReferenceIdStr = InterfaceConfig.GetSection("Interface")
                 .GetSection("UserColumnReferenceId").Value;
            if (!string.IsNullOrWhiteSpace(userColumnReferenceIdStr))
            {
                UserColumnReferenceId = new Guid(userColumnReferenceIdStr);
            }
        }
        protected DbConnection CreateInterfaceDbConnect()
        {
            DbConnection conn;
            if (string.IsNullOrWhiteSpace(InterfaceConnctionStr))
            {
                throw new ArgumentException("数据连接设置中的DbType不能为空");
            }
            InterfaceDbType = InterfaceDbType.ToLower();
            //Logger.LogInformation("数据库类型:" + InterfaceDbType);
            if (InterfaceDbType == "sqlserver")
            {
                //Logger.LogInformation("调用sqlserver:" + InterfaceDbType);
                conn = new SqlConnection(InterfaceConnctionStr);
            }
            else if (InterfaceDbType == "postgres")
            {
                //Logger.LogInformation("调用postgres:" + InterfaceDbType);
                conn = new NpgsqlConnection(InterfaceConnctionStr);
            }
            else if (InterfaceDbType == "oracle")
            {
                //Logger.LogInformation("调用oracle:" + InterfaceDbType);
                conn = new OracleConnection(InterfaceConnctionStr);
            }
            else
            {
                throw new ArgumentException("数据连接设置中的DbType不支持");
            }
            return conn;
        }

        public async Task<TOut> CallAppServiceAsync<TInput, TOut>(string url, TInput data, string method = "post")
        {
            if(string.IsNullOrWhiteSpace(_appBaseAddress))
            {
                throw new Exception("_appBaseAddress不能为空");
            }
            string baseAddress = _appBaseAddress;
            await CheckLoginAsync();
            using (var httpClientHandler = new HttpClientHandler())
            {
                using (var httpClient = new HttpClient(httpClientHandler))
                {
                    httpClient.BaseAddress = new Uri(baseAddress);

                    httpClient.DefaultRequestHeaders.Accept.Add(
                      new MediaTypeWithQualityHeaderValue("application/json"));//设置accept标头，告诉JSON是可接受的响应类型
                    httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", _accesToken);
                    IsoDateTimeConverter timeFormat = new IsoDateTimeConverter();
                    timeFormat.DateTimeFormat = "yyyy-MM-dd HH:mm:ss";
                    var sendData = JsonConvert.SerializeObject(data, Newtonsoft.Json.Formatting.Indented, timeFormat);
                    using (HttpContent httpContent = new StringContent(sendData))
                    {
                        httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                        HttpResponseMessage response = null;
                        if (method == "post")
                        {
                            response = await httpClient.PostAsync(url, httpContent);
                        }
                        else
                        {
                            response = await httpClient.GetAsync(url);
                        }

                        string result;
                        if (!response.IsSuccessStatusCode)
                        {
                            result = response.Content.ReadAsStringAsync().Result;
                            throw new Exception("http通信错误:" + response.StatusCode + ",结果:" + result);
                        }
                        result = await response.Content.ReadAsStringAsync();

                        var resultDto = JsonConvert.DeserializeObject< WebApiOutDto<TOut>>(result);

                        if (resultDto.Code == -1)
                        {
                            throw new Exception($"调用WebApi失败，返回-1,消息:" + resultDto.Message);
                        }
                        return resultDto.Data;

                    }

                }
            }
        }

        public virtual async Task DoWorkAsync()
        {

        }

        public virtual Task DoWork()
        {
            return Task.CompletedTask;
        }

        public async virtual Task<WebApiOutDto<LoginOutDataDto>> LoginAsync()
        {
            if(string.IsNullOrWhiteSpace(AppUser))
            {
                throw new Exception("SelfUser不能为空");
            }
            if (string.IsNullOrWhiteSpace(AppPassword))
            {
                throw new Exception("SelfPassword不能为空");
            }
            var relult = await LoginAsync(AppUser, AppPassword);
            return relult;
        }
        public async Task<WebApiOutDto<LoginOutDataDto>> LoginAsync(string userId, string password)
        {
            if (string.IsNullOrWhiteSpace(userId))
            {
                throw new Exception("用户ID不能为空");
            }
            if (string.IsNullOrWhiteSpace(password))
            {
                throw new Exception("密码不能为空");
            }
            using (var httpClientHandler = new HttpClientHandler())
            {
                using (var httpClient = new HttpClient(httpClientHandler))
                {
                    httpClient.BaseAddress = new Uri(_appBaseAddress);

                    httpClient.DefaultRequestHeaders.Accept.Add(
                      new MediaTypeWithQualityHeaderValue("application/json"));//设置accept标头，告诉JSON是可接受的响应类型
                    var url = "api/identity/users/login";
                    var loginUser = new LoginInputDto()
                    {
                        UserName = userId,
                        Password = password
                    };
                    var sendData = JsonConvert.SerializeObject(loginUser);
                    using (HttpContent httpContent = new StringContent(sendData))
                    {
                        httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                        HttpResponseMessage response = await httpClient.PostAsync(url, httpContent);
                        string result;
                        if (!response.IsSuccessStatusCode)
                        {
                            result = response.Content.ReadAsStringAsync().Result;
                            throw new Exception("http通信错误:" + response.StatusCode + ",结果:" + result);
                        }
                        result = await response.Content.ReadAsStringAsync();
                        var restultDto = JsonConvert.DeserializeObject<WebApiOutDto<LoginOutDataDto>>(result);
                        if (restultDto == null)
                        {
                            throw new Exception("返回结果是空");
                        }
                        if (restultDto.Code != 1)
                        {
                            throw new Exception($"登录失败{restultDto.Message}");
                        }
                        _accesToken = restultDto.Data.access_token;
                        return restultDto;
                    }

                }
            }
        }

        private async Task CheckLoginAsync()
        {
            if (string.IsNullOrWhiteSpace(_accesToken))
            {
                await LoginAsync();
            }
            else
            {
                var handler = new JwtSecurityTokenHandler();
                var payload = handler.ReadJwtToken(_accesToken).Payload;
                var claims = payload.Claims;
                var exp = claims.First(claim => claim.Type == "exp").Value;
                if (exp == null)
                {
                    await LoginAsync();
                }
                else
                {
                    if (long.TryParse(exp, out var expires))
                    {
                        var expireTime = DateTimeOffset.FromUnixTimeSeconds(expires).LocalDateTime;
                        if (expireTime <= DateTime.Now)
                        {
                            await LoginAsync();
                        }
                    }
                    else
                    {
                        await LoginAsync();
                    }

                }

            }
        }
    }
}