'''
load your activity log, scroll to the very bottom,
save as html, then run this to export your data.
this works for me; it may or may not work for you.
no copyright 2017 robert luxemburg. public domain.
'''

import datetime
import json
import os
import re

def format_text(text):
    for pair in [
        ('<br> ?', '\n'),
        ('<span class="see_more_link_inner">See More</span>', ''),
        ('<[^<]+?>', ' '),
        ('( +)', ' ')
    ]:
        text = re.sub(pair[0], pair[1], text)
    return text.strip()

dirname = 'in'
filename = os.path.join(dirname, [
    f for f in os.listdir(dirname) if f.endswith('.html')
][0])
username = filename[3:-5]

with open(filename) as f:
    html = f.read()

separator = '<table class="uiGrid '
parts = [separator + part for part in html.split(separator)[1:]]
print(len(parts), 'items')
items = []

for html in parts:
    item = {}
    x = re.split('</td><td.*?>', html)
    meta, data = x[0], x[1]
    item['meta'] = format_text(meta)
    match = re.search('{}</a> (.+?)\.? ?<'.format(username), meta)
    if match:
        item['action'] = match.group(1)
    match = re.search('>(\w{3} \d{1,2}, \d{4} \d{1,2}:\d{2}(am|pm))<', meta)
    if match:
        item['time'] = datetime.datetime.strptime(
            match.group(1), '%b %d, %Y %I:%M%p'
        ).strftime('%Y-%m-%d %H:%M')
    item['text'] = format_text(data)
    items.append(item)

with open('out/{}.json'.format(username), 'w') as f:
    f.write(json.dumps(items, indent=4, sort_keys=True))

html = (
    '<meta charset="utf-8"/>'
    '<style>div { font-family: sans-serif; font-size: 13px; line-height: 18px;'
    'margin: auto; width: 512px; } .time { margin-top: 12px; }</style>'
)
for item in items:
    for key in ['time', 'action', 'text']:
        html += '<div class={}>{}</div>\n'.format(
            key, re.sub('\n', '<br/>', item.get(key, ''))
        )

with open('out/{}.html'.format(username), 'w') as f:
    f.write(html)