module GeoScript
  module Geom
    java_import java.awt.geom.AffineTransform
    java_import com.vividsolutions.jts.geom.GeometryFactory
    java_import com.vividsolutions.jts.geom.Geometry
    java_import com.vividsolutions.jts.geom.prep.PreparedGeometryFactory
    java_import com.vividsolutions.jts.simplify.DouglasPeuckerSimplifier
    java_import com.vividsolutions.jts.triangulate.DelaunayTriangulationBuilder
    java_import com.vividsolutions.jts.triangulate.VoronoiDiagramBuilder
    java_import com.vividsolutions.jts.operation.buffer.BufferParameters
    java_import com.vividsolutions.jts.operation.buffer.BufferOp
    java_import org.geotools.geometry.jts.JTS
    java_import org.geotools.referencing.operation.transform.AffineTransform2D

    GEOM_FACTORY = GeometryFactory.new
    PREP_FACTORY = PreparedGeometryFactory.new

    def self.prepare(geom)
      PREP_FACTORY.create(geom)
    end

    def self.simplify(geom, tolerance)
      DouglasPeuckerSimplifier.simplify(geom, tolerance)
    end

    def self.buffer(geom, distance, single_sided = false)
      buffer_params = BufferParameters.new
      buffer_params.set_single_sided(single_sided)
      BufferOp.buffer_op(geom, distance, buffer_params)
    end

    def self.get_bounds(geom)
      Bounds.new geom.get_envelope_internal
    end

    def self.enhance(geom)
      geom.bounds = get_bounds(geom)
    end

    def self.to_geoscript_geom(geom)
      const_get(geom.geometry_type).new(geom)
    end

    def self.from_json(json)
      to_geoscript_geom(GeoScript::IO::Geom.read_json(json))
    end

    def self.from_wkt(wkt)
      to_geoscript_geom(GeoScript::IO::Geom.read_wkt(wkt))
    end

    def self.from_wkb(wkb)
      to_geoscript_geom(GeoScript::IO::Geom.read_wkb(wkb))
    end
  end
end