#!/usr/bin/env python3
import json
import subprocess
import os.path
from glob import glob
import difflib

for dash in glob('*.dashboard.py'):
    base = dash.split('.', 1)[0]
    json_filename = '{}-dashboard.json'.format(base)
    subprocess.check_call([
        'generate-dashboard', dash, '-o', json_filename,
    ])
    with open(json_filename, 'rt') as f:
        got_dashboard = json.load(f)

    got_dashboard_json = json.dumps(got_dashboard, sort_keys=True, indent=2)

    with open(os.path.join('jsons', json_filename)) as f:
        ref_dashboard = json.load(f)
    ref_dashboard_json = json.dumps(ref_dashboard, indent=2, sort_keys=True)

    differ = difflib.HtmlDiff(tabsize=2, wrapcolumn=80)
    html = differ.make_file(
        ref_dashboard_json.splitlines(), got_dashboard_json.splitlines()
    )
    with open('{}.diff.html'.format(base), 'wt') as f:
        f.write(html)