using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using WIDESEA_Core.Helper;
using WIDESEA_Core.Seed;

namespace WIDESEA_Core
{
    public sealed class SeedDataHostedService : IHostedService
    {
        private readonly DBContext _dbContext;
        private readonly ILogger<SeedDataHostedService> _logger;
        private readonly string _webRootPath;
        private readonly IServiceProvider _serviceProvider;

        public SeedDataHostedService(
            IServiceProvider serviceProvider,
            IWebHostEnvironment webHostEnvironment,
            ILogger<SeedDataHostedService> logger)
        {
            _serviceProvider = serviceProvider;
            _logger = logger;
            _webRootPath = webHostEnvironment.WebRootPath;

            using var scope = _serviceProvider.CreateScope();

            var dbContext = scope.ServiceProvider.GetService<DBContext>();
            //dbContext.Db.Aop.DataExecuting = SqlSugarAop.DataExecuting;
            _dbContext = dbContext;
        }

        public async Task StartAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Start Initialization Db Seed Service!");
            await DoWork();
        }

        private async Task DoWork()
        {
            try
            {
                if (AppSettings.GetValue("DBSeedEnable").ObjToBool())
                {

                    await DBSeed.SeedAsync(_dbContext, _webRootPath);

                    //多租户 同步
                    //await DBSeed.TenantSeedAsync(_dbContext);
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error occured seeding the Database.");
                throw;
            }
        }

        public Task StopAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Stop Initialization Db Seed Service!");
            return Task.CompletedTask;
        }

    }
}