import os

outdir = os.path.join(os.path.dirname(__file__), 'chapters')
for fname in sorted(os.listdir(outdir)):
    if not fname.endswith('.tex'):
        continue
    fpath = os.path.join(outdir, fname)
    with open(fpath, 'r', encoding='utf-8') as fh:
        content = fh.read()
    lines = content.split('\n')
    prev_cmd = ''
    prev_title = ''
    for i, line in enumerate(lines):
        s = line.strip()
        matched = None
        for cmd in ['\\chapter{', '\\section{', '\\subsection{', '\\subsubsection{']:
            if s.startswith(cmd):
                matched = cmd
                break
        if matched:
            # Check for level jumps (skip of 1 or more intermediate levels)
            levels = {'\\chapter{': 0, '\\section{': 1, '\\subsection{': 2, '\\subsubsection{': 3}
            if prev_cmd and matched in levels and prev_cmd in levels:
                jump = levels[matched] - levels[prev_cmd]
                if jump > 1:
                    title = s[len(matched):-1]
                    print(f'{fname}:{i+1}: {prev_cmd.replace("{","")} -> {matched.replace("{","")} ({jump} levels): {title[:60]}')
            prev_cmd = matched