#!/usr/bin/env python
# coding=utf-8
#
# Copyright (C) 2013 Public Domain
#               2018 Martin Owens <doctormo@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#

import sys
import hpgl_decoder
import inkex
from inkex.localization import inkex_gettext as _


class HpglInput(inkex.InputExtension):
    def add_arguments(self, pars):
        pars.add_argument(
            "--resolutionX", type=float, default=1016.0, help="Resolution X (dpi)"
        )
        pars.add_argument(
            "--resolutionY", type=float, default=1016.0, help="Resolution Y (dpi)"
        )
        pars.add_argument(
            "--showMovements",
            type=inkex.Boolean,
            default=False,
            help="Show Movements between paths",
        )

    def load(self, stream):
        return b";".join(line.strip() for line in stream).decode()

    def effect(self):
        # interpret HPGL data
        myHpglDecoder = hpgl_decoder.hpglDecoder(self.document, self.options)
        self.document = None

        try:
            doc, warnings = myHpglDecoder.get_svg()
        except Exception as inst:
            if inst.args[0] == "NO_HPGL_DATA":
                # issue error if no hpgl data found
                inkex.errormsg(_("No HPGL data found."))
                exit(1)
            else:
                type, value, traceback = sys.exc_info()
                raise ValueError("", type, value).with_traceback(traceback)

        # issue warning if unknown commands where found
        if "UNKNOWN_COMMANDS" in warnings:
            inkex.errormsg(
                _(
                    "The HPGL data contained unknown (unsupported) commands, "
                    "there is a possibility that the drawing is missing some content."
                )
            )

        # deliver document to inkscape
        self.document = doc


if __name__ == "__main__":
    HpglInput().run()