using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

namespace Swan.Mappers {
  /// <summary>
  /// Represents an object map.
  /// </summary>
  /// <typeparam name="TSource">The type of the source.</typeparam>
  /// <typeparam name="TDestination">The type of the destination.</typeparam>
  /// <seealso cref="IObjectMap" />
  public class ObjectMap<TSource, TDestination> : IObjectMap {
    internal ObjectMap(IEnumerable<PropertyInfo> intersect) {
      this.SourceType = typeof(TSource);
      this.DestinationType = typeof(TDestination);
      this.Map = intersect.ToDictionary(property => this.DestinationType.GetProperty(property.Name), property => new List<PropertyInfo> { this.SourceType.GetProperty(property.Name) });
    }

    /// <inheritdoc/>
    public Dictionary<PropertyInfo, List<PropertyInfo>> Map {
      get;
    }

    /// <inheritdoc/>
    public Type SourceType {
      get;
    }

    /// <inheritdoc/>
    public Type DestinationType {
      get;
    }
  }
}