import re

from common import dates, releasedata
from common.git import Git

"""Fetches Apache HTTP Server versions and release date from its git repository
by looking at the STATUS file of each <major>.<minor>.x branch."""

VERSION_AND_DATE_PATTERNS = [
    # for most versions
    re.compile(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*(?:Released|Announced|Released and Retired)\s(?:on\s)?(?P<date>\w+\s\d\d?,\s\d{4})"),
    # for older 2.0.x versions (only GA versions are considered)
    re.compile(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*released\s(?P<date>\w+\s\d\d?,\s\d{4}) as GA"),
    # for older 1.3.x versions, we take the date of the tag and not the date of the release (too difficult to parse)
    re.compile(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*Tagged and [rR]olled\s(?:on\s)?(?P<date>\w+\.?\s\d\d?,\s\d{4})"),
]

with releasedata.ProductData("apache-http-server") as product_data:
    git = Git("https://github.com/apache/httpd.git")
    git.setup()

    for branch in git.list_branches("refs/heads/?.?.x"):
        git.checkout(branch, file_list=["STATUS"])

        release_notes_file = git.repo_dir / "STATUS"
        if not release_notes_file.exists():
            continue

        with release_notes_file.open("rb") as f:
            release_notes = f.read().decode("utf-8", errors="ignore")

        for pattern in VERSION_AND_DATE_PATTERNS:
            for (version, date_str) in pattern.findall(release_notes):
                product_data.declare_version(version, dates.parse_date(date_str))