#!/usr/bin/env python3

import os
import sys

import requests
import semver


def start_pre_release_build():
    gitlab_project_id = os.environ["CI_PROJECT_ID"]
    api_token = os.environ["CISCRIPT_API_TOKEN"]
    branch = os.environ["CI_COMMIT_BRANCH"]
    print(f"branch '{branch}'")
    major_version = minor_version = 0
    patch_version = int(os.environ["CI_PIPELINE_ID"])
    commit_short_sha = os.environ["CI_COMMIT_SHORT_SHA"]
    future_version = str(
        semver.VersionInfo(
            major=major_version,
            minor=minor_version,
            patch=patch_version,
            prerelease="beta",
            build=commit_short_sha,
        )
    )
    future_tag_name = f"v{future_version}"
    print(f"future tag name '{future_tag_name}'")
    response = requests.post(
        (
            f"https://gitlab.princip.cz/"
            f"api/v4/projects/{gitlab_project_id}/repository/tags"
        ),
        headers={"PRIVATE-TOKEN": api_token},
        params={"tag_name": future_tag_name, "ref": branch},
    )
    if response.status_code == 201:
        print(f"tag '{future_tag_name}' created")
    else:
        sys.exit(
            f"error creating tag '{future_tag_name}', "
            f"status code '{response.status_code}', json '{response.json()}'"
        )


if __name__ == "__main__":
    start_pre_release_build()