using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using PARR.DAL.Services.Interfaces;

namespace PARR.TemplateDistributor.Services
{
    internal class ValidatorService : IValidatorService
    {
        private readonly IServiceProvider serviceProvider;
        private readonly ILogger<ValidatorService> logger;

        public ValidatorService(IServiceProvider serviceProvider,
            ILogger<ValidatorService> logger
            )
        {
            this.serviceProvider = serviceProvider;
            this.logger = logger;
        }
        public async Task<bool> IsValidApplicationAndWorksAsync(Guid applicationInWorkId)
        {
            using (var scope = serviceProvider.CreateScope())
            {
                var service = scope.ServiceProvider.GetService<IApplicationsInWorkService>();

                if (service == null)
                    throw new Exception($"Не найден сервис: {nameof(IApplicationsInWorkService)}");

                var appInWork = await service.Get()
                                                .Include(aiw => aiw.EsppSchValues)
                                                .FirstOrDefaultAsync(t => t.Id == applicationInWorkId);

                if (appInWork == null)
                {
                    logger.LogError($"Не найдена регалментная работа {nameof(applicationInWorkId)}: {applicationInWorkId}");
                    return false;
                }

                if (appInWork.IsAutoDistributionEnabled && appInWork.EsppSchValues.Count !=1)
                {
                    logger.LogError($"Регалментная работа {nameof(applicationInWorkId)}: {applicationInWorkId} должна иметь только одно значение EsppSchTypeValue" +
                        $", соответствующее режиму равномерного распределения по периоду");
                    return false;
                }

                return true;
            }
        }
    }
}