using Infrastructure.Application.Services.Settings;
using Infrastructure.Data;
using Infrastructure.Extensions;
using Application.Domain.Entities;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Security.Claims;
using System.Web;
using System.Xml;
using Microsoft.IdentityModel.Tokens;

namespace Platform.Apis.Controllers
{
    [ApiVersion("1.0")]
    [Route("api/v{version:apiVersion}/[controller]/[action]")]
    [ApiController]
    public class ProjectController : ControllerBase
    {
        private readonly IWebHostEnvironment _env;
        private readonly IHttpClientFactory _httpClientFactory;
        private readonly ILogger<ProjectController> logger;
        private readonly IConfiguration _cfg;
        private readonly ISettingService _settingService;
        private readonly IRepository<Organ> _organRepo;
        private readonly IRepository<User> _userRepo;
        private readonly IRepository<OrganUser> _organUserRepo;
        private readonly IRepository<Role> _roleRepo;
        private readonly IRepository<OrganUserRole> _userRoleRepo;
        private readonly TokenValidationParameters _parameters;

        public ProjectController(
            IWebHostEnvironment env,
            IHttpClientFactory httpClientFactory,
            ILogger<ProjectController> logger,
            IConfiguration cfg,
            ISettingService settingService,
            IRepository<Organ> organRepo,
            IRepository<User> userRepo,
            IRepository<OrganUser> organUserRepo,
            IRepository<Role> roleRepo,
            IRepository<OrganUserRole> userRoleRepo,
            TokenValidationParameters parameters)
        {
            this._env = env;
            this._httpClientFactory = httpClientFactory;
            this.logger = logger;
            this._cfg = cfg;
            this._settingService = settingService;
            this._organRepo = organRepo;
            this._userRepo = userRepo;
            this._organUserRepo = organUserRepo;
            this._roleRepo = roleRepo;
            this._userRoleRepo = userRoleRepo;
            this._parameters = parameters;
        }

        [AllowAnonymous]
        [HttpGet]
        public IActionResult CasLogin(string ticket, string home)
        {
            var sso = this._settingService.GetValue("sso");
            if (_env.IsDevelopment())
            {
                sso = sso ?? "http://kpsso.kpedu.com";//debug
                home = "http://221.194.113.154:8100";//debug
            }
            var url = sso + "/serviceValidate?ticket=" + ticket + "&service=" + HttpUtility.UrlEncode(home);
            var httpClient = this._httpClientFactory.CreateClient();
            var result = httpClient.GetAsync(url).Result.Content.ReadAsStringAsync().Result;
            var doc = new XmlDocument();
            doc.LoadXml(result);
            var userName = doc.GetElementsByTagName("cas:USER_NAME")[0].InnerText.Trim();
            var realName = doc.GetElementsByTagName("cas:REAL_NAME")[0].InnerText.Trim();
            var organNumber = doc.GetElementsByTagName("cas:ORG_ID")[0].InnerText.Trim();
            var organName = doc.GetElementsByTagName("cas:ORG_NAME")[0].InnerText.Trim();
            UpdateOrganUser(userName, realName, organName, organNumber);
            if (_env.IsDevelopment())
            {
                home = "http://localhost:8100";//debug
            }
            home += "?accessToken=" + Request.HttpContext.CreateJwtToken(new List<Claim> { new Claim(this._parameters.NameClaimType, userName) }, DateTime.Now.AddYears(100));
            home += "&refreshToken=" + Request.HttpContext.CreateJwtToken(new List<Claim> { new Claim(this._parameters.NameClaimType, userName) }, DateTime.Now.AddYears(100));
            return Redirect(home);
        }

        [AllowAnonymous]
        [HttpGet]
        public IActionResult Update(string userName, string realName, string organName, string organNumber, long timestamp, string role, string token)
        {
            if (string.IsNullOrEmpty(userName) || string.IsNullOrEmpty(organName))
            {
                var message = "参数不能为空";
                this.logger.LogError(message);
                return Problem(message);
            }
            try
            {
                var query = this.Request.QueryString.ToString().RemoveParam("token").TrimStart('?').Trim();
                var token2 = $"{query},123456".Md5();
                if (token2 != token)
                {
                    var message = "token无效";
                    this.logger.LogError(message);
                    throw new Exception(message);
                }
                var sendTime = DateTimeOffset.FromUnixTimeSeconds(timestamp);
                var seconds = (DateTime.UtcNow - sendTime).TotalSeconds;
                if (seconds > 60)
                {
                    var message = $"timestamp差距{seconds}秒";
                    this.logger.LogError(message);
                    throw new Exception(message);
                }
                User user = UpdateOrganUser(userName, realName, organName, organNumber);
                var roles = role.Split(',');
                var userRoles = this._userRoleRepo.Table().Where(o => o.OrganUser.User.UserName == userName);
                if (roles.Any())
                {
                    foreach (var item in roles)
                    {
                        var role2 = _roleRepo.Table().FirstOrDefault(o => o.Name == item);
                        if (role2 == null)
                        {
                            role2 = new Role { Name = item };
                            _roleRepo.Add(role2);
                            _roleRepo.SaveChanges();
                        }
                        if (!userRoles.Any(o => o.OrganRole.Name == item))
                        {
                            _userRoleRepo.Add(new OrganUserRole { OrganUserId = user.Id, OrganRoleId = role2.Id });
                            _userRoleRepo.SaveChanges();
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                this.logger.LogError(ex.ToString());
                return Problem(ex.Message);
            }

            return Ok(new
            {
                AccessToken = Request.HttpContext.CreateJwtToken(new List<Claim> { new Claim(this._parameters.NameClaimType, userName) }, DateTime.Now.AddYears(100)),
                RefreshToken = Request.HttpContext.CreateJwtToken(new List<Claim> { new Claim(this._parameters.NameClaimType, userName) }, DateTime.Now.AddYears(100)),
            });
        }

        private User UpdateOrganUser(string userName, string realName, string organName, string organNumber)
        {
            var organ = this._organRepo.Table().FirstOrDefault(o => o.Name == organName);
            if (organ == null)
            {
                organ = new Organ { Name = organName, Number = organNumber };
                this._organRepo.Add(organ);
            }
            else
            {
                organ.Number = organNumber;
            }
            this._organRepo.SaveChanges();

            var user = this._userRepo.Table().FirstOrDefault(o => o.UserName == userName);
            if (user == null)
            {
                user = new User
                {
                    UserName = userName,
                    NickName = realName,
                    Email = $"{userName}@test.com"
                };
                this._userRepo.Add(user);
            }
            this._userRepo.SaveChanges();
            var organUser = this._organUserRepo.Table().FirstOrDefault(o => o.UserId == user.Id && o.Organ.Id == organ.Id);
            if (organUser == null)
            {
                organUser = new OrganUser { UserId = user.Id, OrganId = organ.Id };
                this._organUserRepo.SaveChanges();
            }

            return user;
        }
    }
}