import logging

from common import dates, http
from common.releasedata import ProductData, config_from_argv

config = config_from_argv()
with ProductData(config.product) as product_data:
    html = http.fetch_html(config.url)
    table_selector = config.data.get("table_selector", "#previous-releases + table").strip()
    date_column = config.data.get("date_column", "Date").strip().lower()
    versions_column = config.data.get("versions_column").strip().lower()

    table = html.select_one(table_selector)
    headers = [th.get_text().strip().lower() for th in table.select("thead th")]
    date_index = headers.index(date_column)
    versions_index = headers.index(versions_column)

    for row in table.select("tbody tr"):
        cells = row.select("td")
        if len(cells) <= max(date_index, versions_index):
            logging.warning(f"Skipping row {cells}: not enough cells")
            continue

        date_text = cells[date_index].get_text().strip()
        date = dates.parse_date(date_text)
        if date > dates.today_at_midnight():
            logging.info(f"Skipping future version {cells}")
            continue

        versions = cells[versions_index].get_text().strip()
        for version in versions.split(", "):
            if config.first_match(version):
                product_data.declare_version(version.strip(), date)