using System;
using System.Threading;
using System.Threading.Tasks;
using EntrustSettle.Common;
using EntrustSettle.Common.Seed;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace EntrustSettle.Extensions;

public sealed class SeedDataHostedService : IHostedService
{
    private readonly SeedContext _myContext;
    private readonly ILogger<SeedDataHostedService> _logger;

    public SeedDataHostedService(SeedContext myContext, ILogger<SeedDataHostedService> logger)
    {
        _myContext = myContext;
        _logger = logger;
    }

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

    private async Task DoWork()
    {
        try
        {
            await Task.CompletedTask;
            // 初始化Main数据库结构
            DBSeed.Seed(_myContext);

            // 初始化日志数据库结构
            if (AppSettings.app("AppSettings", "LogToDb").ObjToBool())
            {
                DBSeed.MigrationLogs(_myContext);
            }
        }
        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;
    }
}