import os
import sys

gi.require_version('Gegl', '0.4')
from gi.repository import Gegl

input_path  = '@SRCDIR@/gimp-logo.svg'
output_path = '@SRCDIR@/gimp.ico'
# List of sizes come from these links:
# https://learn.microsoft.com/en-us/windows/apps/design/style/iconography/app-icon-construction
# https://learn.microsoft.com/en-us/windows/win32/uxguide/vis-icons
# Application icons and control panel items:
sizes       = [ 16, 32, 48, 256 ]
# Quick Launch area:
sizes      += [ 40 ]
# Additional sizes: we don't generate sizes: 8, 10 and 14 because we don't have
# pixel-perfect raster for these and it's so small that I wonder if it's worth
# it.
sizes      += [ 22, 24, 64, 96, 128 ]
# A bit of prettifying for the order of generated layers.
sizes.sort()

image_size = max(sizes)
image = Gimp.Image.new(image_size, image_size, Gimp.ImageBaseType.RGB)
image.undo_disable()

for size in sizes:
  procedure   = Gimp.get_pdb().lookup_procedure("file-svg-load")
  config      = procedure.create_config()
  config.set_property("file", Gio.file_new_for_path(input_path))

  config.set_property("width",  size)
  config.set_property("height", size)
  v = Gimp.Procedure.run(procedure, config)
  if v.index(0) != Gimp.PDBStatusType.SUCCESS:
    sys.exit(70)

  tmp_image = v.index(1)
  drawables = tmp_image.get_selected_drawables()
  layer = Gimp.Layer.new_from_drawable (drawables[0], image)
  image.insert_layer(layer, None, 0)
  tmp_image.delete()

procedure = Gimp.get_pdb().lookup_procedure("file-ico-export")
config    = procedure.create_config()
drawables = image.get_selected_drawables()
config.set_property("image", image)
config.set_property("num-drawables", len(drawables))
config.set_property("drawables", Gimp.ObjectArray.new(Gimp.Drawable, drawables, False))
config.set_property("file", Gio.file_new_for_path(output_path))
v = Gimp.Procedure.run(procedure, config)
if v.index(0) != Gimp.PDBStatusType.SUCCESS:
  sys.exit(70)