import logging
import os
import re
import subprocess
from typing import Optional

def upload_file(base_dir: str, file: str):
    """
    Uploads artifact to buildkite and returns URL to it
    """
    r = subprocess.run(f'buildkite-agent artifact upload "{file}"', shell=True, capture_output=True, cwd=base_dir)
    logging.debug(f'upload-artifact {r}')
    match = re.search('Uploading artifact ([^ ]*) ', r.stderr.decode())
    logging.debug(f'match {match}')
    if match:
        url = f'https://buildkite.com/organizations/llvm-project/pipelines/premerge-checks/builds/{os.getenv("BUILDKITE_BUILD_NUMBER")}/jobs/{os.getenv("BUILDKITE_JOB_ID")}/artifacts/{match.group(1)}'
        logging.info(f'uploaded {file} to {url}')
        return url
    else:
        logging.warning(f'could not find artifact {base_dir}/{file}')
        return None


def format_url(url: str, name: Optional[str] = None):
    if name is None:
        name = url
    return f"\033]1339;url='{url}';content='{name}'\a\n"