import glob, json, os, re
import pyarrow.parquet as pq

TERMINALS = set('.?!')

def is_eligible(s):
    s = s.strip()
    if not s or s[-1] not in TERMINALS:
        return False
    if any(c in s for c in ':;"“”‘’!—–()[]'):
        return False
    words = s.split()
    if not (6 <= len(words) <= 24):
        return False
    if not words[0][0].isalpha() or not words[0][0].isupper():
        return False
    return True

gutenberg_count = 0
for f in glob.glob('/opt/vox/temp/downloads/clean_corpora/gutenberg_books/*.txt'):
    for line in open(f, errors='ignore'):
        line = line.strip()
        if is_eligible(line):
            gutenberg_count += 1

ubuntu_count = 0
if os.path.exists('/opt/vox/temp/downloads/clean_corpora/ubuntu_dialogue_qa/train.parquet'):
    t = pq.read_table('/opt/vox/temp/downloads/clean_corpora/ubuntu_dialogue_qa/train.parquet')
    for row in t.to_pylist():
        txt = (row.get('question') or '') + ' ' + (row.get('answer') or '')
        for part in txt.split('.'):
            p = part.strip() + '.'
            if is_eligible(p):
                ubuntu_count += 1

print(f'Gutenberg eligible sentences: {gutenberg_count}')
print(f'Ubuntu eligible sentences: {ubuntu_count}')