using System.Net.Http.Headers;
using System.Text;
using Dlhis.Middle.Entities;
using Dlhis.Middle.Response;
using Kurisu.AspNetCore.DataAccess.SqlSugar.Services;
using Kurisu.AspNetCore.UnifyResultAndValidation;
using Kurisu.AspNetCore.Utils.Extensions;
using Microsoft.Extensions.Caching.Memory;
using Newtonsoft.Json;

namespace Dlhis.Middle.Services.Implements;

public class BalanceRecordCheckBackgroundService : BackgroundService
{
    private readonly IServiceProvider _serviceProvider;
    private readonly ILogger<BalanceRecordCheckBackgroundService> _logger;
    private readonly IMemoryCache _memoryCache;
    private readonly IHttpClientFactory _httpClientFactory;

    private readonly IHealthCheckService _healthCheckService;

    private readonly string _factory;
    private readonly string _hostName;

    public BalanceRecordCheckBackgroundService(IServiceProvider serviceProvider,
        ILogger<BalanceRecordCheckBackgroundService> logger,
        IMemoryCache memoryCache,
        IHttpClientFactory httpClientFactory,
        IHealthCheckService healthCheckService,
        IConfiguration configuration)
    {
        _serviceProvider = serviceProvider;
        _logger = logger;
        _memoryCache = memoryCache;
        _httpClientFactory = httpClientFactory;
        _healthCheckService = healthCheckService;
        _factory = configuration.GetSection("Factory").Value;
        _hostName = configuration.GetSection("HostName").Value;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        while (!stoppingToken.IsCancellationRequested)
        {
            if (!_healthCheckService.GetIsOffline())
            {
                var now = DateTime.Now;

                using var scope = _serviceProvider.CreateScope();
                var db = scope.ServiceProvider.GetService<IDbContext>();
                var ds = scope.ServiceProvider.GetService<IDataDownloadService>();

                foreach (var factory in _factory.Split(','))
                {
                    try
                    {
                        var balanceRecords = await db.Queryable<LocalBalanceRecordEntity>().Where(x => x.TenantId == factory).Where(x => !x.IsSync).ToListAsync(stoppingToken);
                        if (balanceRecords.Any())
                        {
                            _logger.LogInformation("上传离线订单");
                            foreach (var balanceRecord in balanceRecords)
                            {
                                //事务
                                await db.Client.Ado.BeginTranAsync();
                                try
                                {
                                    //设置为已同步
                                    balanceRecord.IsSync = true;
                                    await db.UpdateAsync(balanceRecord);
                                    var r = await UploadAsync(balanceRecord);
                                    if (r.Code != ApiStateCode.Success)
                                    {
                                        throw new Exception(r.Msg);
                                    }
                                    
                                    var d = r.Data;
                                    //更新本地余额表
                                    await db.Updateable<LocalGainfoMealEntity>()
                                        .SetColumns(x => x.Balance == d.Balance)
                                        .Where(x => x.UserCode == d.UserCode)
                                        .ExecuteCommandAsync(stoppingToken);

                                    await db.Client.Ado.CommitTranAsync();
                                }
                                catch (Exception e)
                                {
                                    _logger.LogError(e, "{factory}上传离线消费失败:{message}", factory, e.Message);
                                    await db.Client.Ado.RollbackTranAsync();
                                }
                            }
                        }
                    }
                    catch (Exception e)
                    {
                        _logger.LogError(e, "{factory}同步离线数据失败:{message}", factory, e.Message);
                    }
                }


                if (now is { Hour: 4, Minute: 1 }
                    && !_healthCheckService.GetIsOffline()
                    && !await db.Queryable<LocalBalanceRecordEntity>().Where(x => !x.IsSync).AnyAsync())
                {
                    await ds.InitAsync(_factory);
                }
                else if (now is { Hour: 15, Minute: 1 }
                         && !_healthCheckService.GetIsOffline()
                         && !await db.Queryable<LocalBalanceRecordEntity>().Where(x => !x.IsSync).AnyAsync())
                {
                    await ds.InitAsync(_factory);
                }
                else if (now is { Hour: 20, Minute: 1 }
                         && !_healthCheckService.GetIsOffline()
                         && !await db.Queryable<LocalBalanceRecordEntity>().Where(x => !x.IsSync).AnyAsync())
                {
                    await ds.InitAsync(_factory);
                }
            }

            await Task.Delay(60 * 1000, stoppingToken);
        }
    }

    public async Task<DefaultApiResult<OrderResultResponse>> UploadAsync(LocalBalanceRecordEntity entity)
    {
        var token = await AuthAsync();

        var httpClient = _httpClientFactory.CreateClient("face");
        httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);

        var url = $"https://{_hostName}/api/canteen/middle/upload";

        var json = entity.ToJson();
        var content = new StringContent(json, Encoding.UTF8, "application/json");

        var response = await httpClient.PostAsync(url, content);
        var responseJson = await response.Content.ReadAsStringAsync();
        return responseJson.ToObject<DefaultApiResult<OrderResultResponse>>();
    }

    private async Task<string> AuthAsync()
    {
        var httpClient = _httpClientFactory.CreateClient("face");

        if (_memoryCache.TryGetValue("token", out string token)) return token;

        var tokenResponse = await httpClient.PostAsync($"https://{_hostName}/api/User/OAuth2/clientgrant", new StringContent(JsonConvert.SerializeObject(new
        {
            ClientId = "e509c2aaa98e300c",
            ClientSecret = "6184d8979fc48105"
        }), Encoding.UTF8, "application/json"));

        var tokenJson = await tokenResponse.Content.ReadAsStringAsync();
        var tokenInfo = JsonConvert.DeserializeObject<DefaultApiResult<TokenResponse>>(tokenJson);

        token = tokenInfo.Data.AccessToken;

        _memoryCache.Set("token", token, TimeSpan.FromSeconds(tokenInfo.Data.Expires));

        return token;
    }
}