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spjall
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import glob,json,unicodedata,re

# basic search helper:
# download transcript data, run searcher.py on it,
# open output html file in a browser,
# it contains quick links to listen to the results.

# notes:
# linked segment times are very approximate.
# audio loading can be delayed, click segments again until they play.
# transcripts aren't tagged or parsed, DIY morphosyntax by regex.



def get_segs(tx_path):
    with open(tx_path,'r') as handle:
        tx = json.load(handle)
    tx = tx['segments']

    return [get_sent(sent) for sent in tx]


def get_sent(sent):
    def ms(t): # time in ms
        return int(float(t.replace('s',''))*1000)
    # keys of sent are 'startTime', 'endTime', 'words', 'speakerId'
    st = sent['startTime']
    et = sent['endTime']
    ws = ''.join([wd['word'] for wd in sent['words']])
    if st is None:
        st=sent['words'][0]['startTime']
    if et is None:
        et=sent['words'][-1]['endTime']
    return(ms(st),ms(et),ws)


def html_line(match_line,url):
    w,sk,ix = match_line
    h = f'<p>({sk}) [{ix}] <a href="{url}#{ix}">{w}</a></p>'
    return h


def snorm(s):
    s = ''.join([c.lower() for c in s if not unicodedata.category(c).startswith("P") ])
    while '  ' in s:
        s = s.replace('  ', ' ')
    return s


# the search function must operate on the conversation
# and return the results in expected format
def search_convos(corpus_dir, base_url, output_path, search_func, search_string=None):
    convos = glob.glob(corpus_dir+'*/')
    convos = [c.split(corpus_dir)[1].split('/')[0] for c in convos]
    convos = sorted(convos)
    
    result_html = ''

    for i, convo in enumerate(convos):
        
        convo_url = f'{base_url}{convo}.html'
        txa = f'{corpus_dir}{convo}/speaker_a_convo_{convo}_transcript.json'
        txb = f'{corpus_dir}{convo}/speaker_b_convo_{convo}_transcript.json'

        sega = [(s,e,w,'a') for s,e,w in get_segs(txa)]
        segb = [(s,e,w,'b') for s,e,w in get_segs(txb)]
        segs = sega + segb
        segs.sort(key=lambda s: s[0])

        # discard timestamps but add turn number
        segs = [(segs[i][2], segs[i][3], i) for i in range(len(segs))]

        matches = search_func(segs,search_string)

        if matches:
            result_html += f'<h4>{convo}</h4>'
            result_html += '\n'.join([html_line(m,convo_url) for m in matches])
            result_html += f'<hr />'
        
    with open(output_path,'w') as handle:
        handle.write(result_html)


def simple_search1(convo,search_string):
    search_string = snorm(search_string)
    norm = [(snorm(w),sk,ln) for w,sk,ln in convo]
    matches = [(w,sk,ln) for w,sk,ln in norm if search_string in w]
    return matches


def regex_search1(convo,search_rx):
    matches = [(w,sk,ln) for w,sk,ln in convo if re.findall(search_rx,snorm(w))]
    return matches

        
if __name__ == "__main__":
    corpus_dir = './full_conversations/'
    base_url = 'https://clr-spjall.static.hf.space/pages/'
    
    output_path = './tmp.html'

    #search_func = simple_search1
    search_func = regex_search1
    #search_string = 'kannski'
    #search_string = 'eða'
    #search_string = r'\Wá \w+ eða \w+'
    #search_string = r'\Wí \w+ eða \w+'
    #search_string = r'nei\S? \w+ \w+ (ekki|aldrei|ekkert)'#|enga|engu|eng\w\w)'
    #search_string = r'hvor\S* .* eða'
    #search_string = r'\Wef .* þá'
    search_string = r'^\w+ sem'

    
    search_convos(corpus_dir, base_url, output_path, search_func, search_string)