# -*- coding: utf-8 -*-
import io, re, sys

def find_oj_section(html, start):
    n = len(html)
    depth = 1
    i = start + len('<div class="oj-section"')
    while depth > 0 and i < n:
        o = html.find('<div', i)
        c = html.find('</div>', i)
        if c == -1:
            return -1
        if o != -1 and o < c:
            depth += 1
            i = o + 4
        else:
            depth -= 1
            i = c + 6
    return i

for f in sys.argv[1:]:
    c = io.open(f, encoding='utf-8').read()
    pat = re.compile(r'<div class="oj-section" data-oj-section="([^"]+)">')
    print('===', f.replace('\\', '/').split('/')[-1])
    for m in pat.finditer(c):
        name = m.group(1)
        end = find_oj_section(c, m.start())
        blk = c[m.start():end]
        expl = blk.count('class="oj-explains"')
        full = blk.count('class="prob-detail" onclick')
        hw = blk.count('class="prob-detail homework"')
        mark = 'OK' if (expl == 1 and full + hw == 5) else 'BAD'
        print('  %-4s expl=%d full=%d homework=%d %s' % (name, expl, full, hw, mark))
    print('  total homework-note count:', c.count('未提交 · 课后作业'))
    print('  div balance:', c.count('<div'), '/', c.count('</div>'),
          'OK' if c.count('<div') == c.count('</div>') else 'MISMATCH')