# Authors: see git history
#
# Copyright (c) 2010 Authors
# Licensed under the GNU GPL version 3.0 or later.  See the file LICENSE for details.

from flask import Blueprint, g, jsonify

from ..exceptions import InkstitchException, format_uncaught_exception
from ..stitch_plan import stitch_groups_to_stitch_plan

stitch_plan = Blueprint('stitch_plan', __name__)


@stitch_plan.route('')
def get_stitch_plan():
    if not g.extension.get_elements():
        return dict(colors=[], stitch_blocks=[], commands=[])

    try:
        metadata = g.extension.get_inkstitch_metadata()
        collapse_len = metadata['collapse_len_mm']
        min_stitch_len = metadata['min_stitch_len_mm']
        stitch_groups = g.extension.elements_to_stitch_groups(g.extension.elements)
        stitch_plan = stitch_groups_to_stitch_plan(stitch_groups, collapse_len=collapse_len, min_stitch_len=min_stitch_len)
        return jsonify(stitch_plan)
    except InkstitchException as exc:
        return jsonify({"error_message": str(exc)}), 500
    except Exception:
        return jsonify({"error_message": format_uncaught_exception()}), 500