using System.Linq;

namespace EnVisage.Code.BLL
{
    public class SystemSettingsManager
    {
        private readonly EnVisageEntities _dbContext;

        public SystemSettingsManager(EnVisageEntities dbContext = null)
        {
            if (dbContext == null)
            {
                _dbContext = new EnVisageEntities();
            }
            else
            {
                _dbContext = dbContext;
            }
        }

        public string GetSystemSettingsValue(int type, bool exceptionOnSettingsNotFound = true)
        {
			var result = string.Empty;
			var systemSetting = _dbContext.SystemSettings.FirstOrDefault(q => q.Type == type);

			if (systemSetting == null)
			{
				if (exceptionOnSettingsNotFound)
				{
					string message = string.Format("System Setting not found in the settings store (Type = {0})", type);
					throw new BLLException(message);
				}
			}
			else
			{
				result = systemSetting.Value;
			}

			return result;
        }

        public int OptiMUSEThreshold()
        {
            var systemSetting = _dbContext.SystemSettings.FirstOrDefault(q => q.Type == (int)SystemSettingType.OptiMUSEThreshold);
            var optiMUSEThreshold = 0;
            if (systemSetting != null && int.TryParse(systemSetting.Value, out optiMUSEThreshold))
            {
                return optiMUSEThreshold;
            }
            return optiMUSEThreshold;
        }
    }
}