using System;

namespace Deltares.Maps
{
    public class FeatureImporter : IFeatureImporter
    {
        private readonly IFeatureRepository repository;
        private IReader<IFeature> reader;

        public FeatureImporter(IFeatureRepository repository, IReader<IFeature> reader)
        {
            if (repository == null)
            {
                throw new ArgumentNullException("repository");
            }
            if (reader == null)
            {
                throw new ArgumentNullException("reader");
            }

            this.repository = repository;
            this.reader = reader;
        }

        #region Implementation of IGeometryRepositoryImporter

        public IFeatureRepository Repository
        {
            get { return repository; }
        }

        public IReader<IFeature> Reader
        {
            set { reader = value; }
        }

        public void Import()
        {
            repository.Add(reader.Read());
        }

        #endregion

        public static void ImportFromShapeFile(ShapeFileLocation shapeFileLocation, IFeatureRepository featureRepository,
            bool ignoreAttributeData = false)
        {
            if (shapeFileLocation == null)
            {
                throw new ArgumentNullException("shapeFileLocation");
            }
            if (featureRepository == null)
            {
                throw new ArgumentNullException("featureRepository");
            }

            try
            {
                IReader<IFeature> reader = new ShapeFileReader(shapeFileLocation)
                {
                    IgnoreAttributeData = ignoreAttributeData
                };

                IFeatureImporter importer = new FeatureImporter(featureRepository, reader);
                importer.Import();
            }
            catch (Exception e)
            {
                throw new FeatureImportException(shapeFileLocation.FullPath, e);
            }
        }
    }
}