#
#     Sam Hadow - Huffman-py
#     Copyright (C) 2023
#
#     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 3 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, see <http://www.gnu.org/licenses/>.
#
import graphviz

def generate_node(graph, sommet, father = None):
    if sommet.left and sommet.right:
        #pas une feuille
        graph.node(str(sommet.identifiant), label = str(sommet.occurrence) , style = "filled", fillcolor = "red", shape="circle")
    else:
        #une feuille
        graph.node(str(sommet.identifiant), label = graphviz.escape(str(sommet.occurrence)+'\n'+str(sommet.lettres)), style = "filled", fillcolor = "green")
        # https://graphviz.readthedocs.io/en/stable/api.html#graphviz.escape

    if father != None:
        graph.edge(str(father), str(sommet.identifiant), label=str(sommet.code))

    if sommet.left:
        generate_node(graph, sommet.left, sommet.identifiant)
    if sommet.right:
        generate_node(graph, sommet.right, sommet.identifiant)