using Microsoft.Extensions.Logging;
using PARR.DAL.DomainModels;
using PARR.DAL.Services.Interfaces;

namespace PARR.DAL.TransformServices
{
    internal class EsppScheduleTransformService : IEsppScheduleTransformService
    {
        private readonly IEsppSchTypeConfigService esppSchTypeConfigService;
        private readonly ILogger<EsppScheduleTransformService> logger;

        public EsppScheduleTransformService(IEsppSchTypeConfigService esppSchTypeConfigService, ILogger<EsppScheduleTransformService> logger)
        {
            this.esppSchTypeConfigService = esppSchTypeConfigService;
            this.logger = logger;
        }


        public DateTimeOffset GetNextDate(EsppScheduleDto esppSchedule, DateTimeOffset lastRun)
        {
            //todo:

            return lastRun;
        }


        public List<DateTimeOffset> GetNextSchedule(EsppScheduleDto esppSchedule, DateTimeOffset lastRun)
        {
            var schedules = new List<DateTimeOffset>();

            //todo:
            schedules.Add(lastRun);



            return schedules.OrderBy(t => t).ToList();
        }


        public async Task<DateTimeOffset> GetNextDateAsync(Guid applicationInWorkId, DateTimeOffset lastRun)
        {
            return GetNextDate(await GetEsppSchedule(applicationInWorkId), lastRun);
        }


        public async Task<List<DateTimeOffset>> GetNextScheduleAsync(Guid applicationInWorkId, DateTimeOffset lastRun)
        {
            return GetNextSchedule(await GetEsppSchedule(applicationInWorkId), lastRun);
        }


        private async Task<EsppScheduleDto> GetEsppSchedule(Guid applicationInWorkId)
        {
            var esppSchedule = await esppSchTypeConfigService.GetEsppScheduleDtoAsync(applicationInWorkId);
            if (esppSchedule == null)
            {
                logger.LogError($"Не найдено расписание в БД, applicationInWorkId: {applicationInWorkId}");
                throw new Exception($"Не найдено расписание в БД, applicationInWorkId: {applicationInWorkId}");
            }

            return esppSchedule;
        }
    }
}