require 'ffi'
require_relative 'gdal_rpc_info'
require_relative '../ogr/api_h'

module FFI
  module GDAL
    extend FFI::Library

    #------------------------------------------------------------------------
    # Enums
    #------------------------------------------------------------------------
    GDALGridAlgorithm = enum :GCA_InverseDistanceToAPower,
      :GCA_MovingAverage,
      :GCA_NearestNeighbor,
      :GCA_MetricMinimum,
      :GCA_MetricMaximum,
      :GCA_MetricRange,
      :GCA_MetricCount,
      :GCA_MetricAverageDistance,
      :GCA_MetricAverageDistancePts

    #------------------------------------------------------------------------
    # Typedefs
    #------------------------------------------------------------------------
    callback :GDALTransformerFunc,
      %i[pointer int int pointer pointer pointer pointer],
      :int

    #------------------------------------------------------------------------
    # Functions
    #------------------------------------------------------------------------
    attach_function :GDALApproxTransform,
      %i[pointer int int pointer pointer pointer pointer],
      :int
    attach_function :GDALChecksumImage,
      %i[GDALRasterBandH int int int int],
      :int
    attach_function :GDALComputeMedianCutPCT,
      %i[GDALRasterBandH GDALRasterBandH GDALRasterBandH pointer
        int GDALColorTableH GDALProgressFunc pointer],
      :int
    attach_function :GDALComputeProximity,
      %i[GDALRasterBandH GDALRasterBandH pointer GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALContourGenerate,
      %i[GDALRasterBandH double double int pointer int double pointer
        int int GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALCreateApproxTransformer,
      %i[GDALTransformerFunc pointer double],
      :pointer
    attach_function :GDALCreateGCPTransformer, %i[int pointer int int], :pointer
    attach_function :GDALCreateGenImgProjTransformer,
      %i[GDALDatasetH string GDALDatasetH string bool double int],
      :pointer
    attach_function :GDALCreateGenImgProjTransformer2,
      %i[GDALDatasetH GDALDatasetH pointer],
      :pointer
    attach_function :GDALCreateReprojectionTransformer,
      %i[string string],
      :pointer
    attach_function :GDALCreateRPCTransformer,
      [GDALRPCInfo.ptr, :int, :double, :pointer],
      :pointer
    attach_function :GDALCreateTPSTransformer, %i[int pointer int], :pointer

    attach_function :GDALDestroyApproxTransformer, %i[pointer], :void
    attach_function :GDALDestroyGCPTransformer, %i[pointer], :pointer
    attach_function :GDALDestroyGenImgProjTransformer, %i[pointer], :pointer
    attach_function :GDALDestroyReprojectionTransformer, %i[pointer], :pointer
    attach_function :GDALDestroyTPSTransformer, %i[pointer], :pointer

    attach_function :GDALDitherRGB2PCT,
      %i[GDALRasterBandH GDALRasterBandH GDALRasterBandH GDALRasterBandH
        GDALColorTableH GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALPolygonize,
      %i[GDALRasterBandH GDALRasterBandH OGRLayerH int pointer GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALFPolygonize,
      %i[GDALRasterBandH GDALRasterBandH OGRLayerH int pointer
        GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALGCPTransform,
      %i[pointer int int pointer pointer pointer pointer],
      :bool
    attach_function :GDALGenImgProjTransform,
      %i[pointer int int pointer pointer pointer pointer],
      :bool

    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    # Dataset-related
    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    attach_function :GDALGridCreate,
      [GDALGridAlgorithm, :pointer, :GUInt32, :pointer, :pointer, :pointer,
        :double, :double, :double, :double, :GUInt32, :GUInt32, GDALDataType,
        :pointer, :GDALProgressFunc, :pointer],
      CPLErr
    attach_function :GDALRasterizeGeometries,
      %i[GDALDatasetH int pointer int pointer GDALTransformerFunc
        pointer pointer pointer GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALRasterizeLayers,
      %i[GDALDatasetH int pointer int pointer GDALTransformerFunc
        pointer pointer pointer GDALProgressFunc pointer],
      CPLErr
    attach_function :GDALRasterizeLayersBuf,
      [:pointer, :int, :int, GDALDataType, :int, :int, :int, :pointer, :string,
       :pointer, :GDALTransformerFunc, :pointer, :double, :pointer,
       :GDALProgressFunc, :pointer],
      CPLErr

    attach_function :GDALReprojectionTransform,
      %i[pointer int int pointer pointer pointer pointer],
      :int
    attach_function :GDALSetGenImgProjTransformerDstGeoTransform,
      %i[pointer pointer],
      :void
    attach_function :GDALSimpleImageWarp,
      %i[GDALDatasetH GDALDatasetH int pointer GDALTransformerFunc pointer
        GDALProgressFunc pointer pointer],
      :bool
    attach_function :GDALSuggestedWarpOutput,
      %i[GDALDatasetH GDALTransformerFunc pointer pointer pointer pointer],
      CPLErr
  end
end