file(GLOB icon_files "${CMAKE_CURRENT_SOURCE_DIR}/*.svg")

set(formats
	pdf
	svg
	png
	ico
)

find_program(imagemagick magick convert)

foreach(icon_file ${icon_files})
	get_filename_component(icon ${icon_file} NAME_WE)
	foreach(format ${formats})
		set(source "${CMAKE_CURRENT_SOURCE_DIR}/${icon}.svg")
		set(sink "${CMAKE_CURRENT_BINARY_DIR}/${format}/${icon}.${format}")
		if(format STREQUAL ico)
			set(intermediate "${CMAKE_CURRENT_BINARY_DIR}/png/${icon}.png")
			add_custom_command(
				OUTPUT
					${sink}
				COMMAND
					${imagemagick}
					${intermediate}
					${sink}
				DEPENDS
					${intermediate}
			)
		else()
			add_custom_command(
				OUTPUT
					${sink}
				COMMAND
					SELF_CALL=xxx # https://gitlab.com/inkscape/inkscape/-/issues/4716
					inkscape
					--export-type=${format}
					--export-filename=${sink}
					${source}
				DEPENDS
					${source}
			)
		endif()
		add_custom_target(
			"icon-${format}-${icon}"
			ALL
			DEPENDS
				${sink}
		)
	endforeach()
endforeach()