#!/usr/bin/env python3

"""
This script creates the data.js file containing the list of nodes end edges for
the vis.js graph. Just place data.js in the same folder with index.html.
"""

import json
from pathlib import Path

data = '../dokk/data'

nodes = []
edges = []

for path in Path(data).glob('**/*.json',):
    with open(path, 'r') as f:
        n = json.loads(f.read())

        nodes.append({
            'title': n['node_name'] + ('\n' + n['node_description'] if 'node_description' in n else ''),
            #'color': { 'background': '', 'border': ''},
            'label': n['node_name'],
            'id': n['node_id']
        })

        for p in n.keys():
            if not p.startswith('*'):
                continue

            if not type(n[p]) == list:
                n[p] = [ n[p] ]

            for target in n[p]:
                edges.append({
                    'title': p[1:],
                    'from': n['node_id'],
                    #'label': p,
                    'to': target,
                })

with open('data.js', 'w') as f:
    f.write('var nodes={};\nvar edges={}'.format(json.dumps(nodes), json.dumps(edges)))