using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NLog;
using NzbDrone.Core.Lifecycle;

namespace NzbDrone.Core.Qualities
{
    public interface IQualitySizeService
    {
        void Update(QualitySize qualitySize);
        void UpdateAll(List<QualitySize> qualitySizes);
        List<QualitySize> All();
        QualitySize Get(int qualityId);
    }

    public class QualitySizeService : IQualitySizeService, IInitializable
    {
        private readonly IQualitySizeRepository _qualitySizeRepository;
        private readonly Logger _logger;

        public QualitySizeService(IQualitySizeRepository qualitySizeRepository, Logger logger)
        {
            _qualitySizeRepository = qualitySizeRepository;
            _logger = logger;
        }

        public virtual void Update(QualitySize qualitySize)
        {
            _qualitySizeRepository.Update(qualitySize);
        }

        public virtual void UpdateAll(List<QualitySize> qualitySizes)
        {
            _qualitySizeRepository.UpdateMany(qualitySizes);
        }

        public virtual List<QualitySize> All()
        {
            return _qualitySizeRepository.All().ToList();
        }

        public virtual QualitySize Get(int qualityId)
        {
            return _qualitySizeRepository.GetByQualityId(qualityId);
        }

        public void Init()
        {
            var inDb = All();

            _logger.Debug("Setting up default quality sizes");

            foreach (var quality in Quality.All())
            {
                //Skip UNKNOWN
                if (quality.Id == 0) continue;

                var db = inDb.SingleOrDefault(s => s.QualityId == quality.Id);

                if(db == null)
                    _qualitySizeRepository.Insert(new QualitySize
                        {
                                QualityId = quality.Id,
                                Name = quality.Name,
                                MinSize = 0,
                                MaxSize = 100
                        });
            }
        }
    }
}