Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/piaulizaportal.py (Python)

Code before:
            video_id, headers={'Referer': 'https://ulizaportal.jp/'},
            note='Fetching player data', errnote='Unable to fetch player data')

        formats = self._extract_m3u8_formats(
            self._search_regex(
                r'["\'](https://vms-api\.p\.uliza\.jp/v1/prog-index\.m3u8[^"\']+)', player_data,
                'm3u8 url', default=None),
            video_id, fatal=False)

        m3u8_type = self._search_regex(
            r'/hls/(dvr|video)/', traverse_obj(formats, (0, 'url')), 'm3u8 type', default=None)
        if m3u8_type == 'video':
            live_status = 'is_live'
        elif m3u8_type == 'dvr':
            # short-term archives.
            live_status = 'was_live'
        else:
            # VoD or long-term archives.
            live_status = 'not_live'

        return {
            'id': video_id,
            'title': self._html_extract_title(webpage),
            'formats': formats,
            'live_status': live_status,
        }


Review comment (refactor):
```suggestion
        m3u8_type = self._search_regex(
            r'/hls/(dvr|video)/', traverse_obj(formats, (0, 'url')), 'm3u8 type', default=None)

        return {
            'id': video_id,
            'title': self._html_extract_title(webpage),
            'formats': formats,
            'live_status': {
                'video': 'is_live',
                'dvr': 'was_live',  # short-term archives
            }.get(m3u8_type, 'not_live'),  # VOD or long-term archives,
        }
```

Code after:
from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    int_or_none,
    parse_qs,
    time_seconds,
    traverse_obj,
)


class PIAULIZAPortalIE(InfoExtractor):
    IE_DESC = 'ulizaportal.jp - PIA LIVE STREAM'
    _VALID_URL = r'https?://(?:www\.)?ulizaportal\.jp/pages/(?P<id>[\da-f]{8}-(?:[\da-f]{4}-){3}[\da-f]{12})'
    _TESTS = [{
        'url': 'https://ulizaportal.jp/pages/005f18b7-e810-5618-cb82-0987c5755d44',
        'info_dict': {
            'id': '005f18b7-e810-5618-cb82-0987c5755d44',
            'title': 'プレゼンテーションプレイヤーのサンプル',
            'live_status': 'not_live',
        },
        'params': {
            'skip_download': True,
            'ignore_no_formats_error': True,
        },
    }, {
        'url': 'https://ulizaportal.jp/pages/005e1b23-fe93-5780-19a0-98e917cc4b7d?expires=4102412400&signature=f422a993b683e1068f946caf406d211c17d1ef17da8bef3df4a519502155aa91&version=1',
        'info_dict': {
            'id': '005e1b23-fe93-5780-19a0-98e917cc4b7d',
            'title': '【確認用】視聴サンプルページ（ULIZA）',
            'live_status': 'not_live',
        },
        'params': {
            'skip_download': True,
            'ignore_no_formats_error': True,
        },
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)

        expires = int_or_none(traverse_obj(parse_qs(url), ('expires', 0)))
        if expires and expires <= time_seconds():
            raise ExtractorError('The link is expired.', video_id=video_id, expected=True)

        webpage = self._download_webpage(url, video_id)

        player_data = self._download_webpage(
            self._search_regex(
                r'<script [^>]*\bsrc="(https://player-api\.p\.uliza\.jp/v1/players/[^"]+)"',
                webpage, 'player data url'),
            video_id, headers={'Referer': 'https://ulizaportal.jp/'},
            note='Fetching player data', errnote='Unable to fetch player data')

        formats = self._extract_m3u8_formats(
            self._search_regex(
                r'["\'](https://vms-api\.p\.uliza\.jp/v1/prog-index\.m3u8[^"\']+)', player_data,
                'm3u8 url', default=None),
            video_id, fatal=False)
        m3u8_type = self._search_regex(
            r'/hls/(dvr|video)/', traverse_obj(formats, (0, 'url')), 'm3u8 type', default=None)

        return {
            'id': video_id,
            'title': self._html_extract_title(webpage),
            'formats': formats,
            'live_status': {
                'video': 'is_live',
                'dvr': 'was_live',  # short-term archives
            }.get(m3u8_type, 'not_live'),  # VOD or long-term archives
        }