#!/usr/bin/env python3

import argparse
import time

from task import github

def issues_review(api, opts):
    now = time.time()
    treshold = opts.age * 86400
    count = 100
    page = 1
    while count == 100:
        issues = api.get("issues?filter=all&page=%i&per_page=%i" % (page, count))
        page += 1
        count = len(issues)
        for issue in issues:
            age = now - time.mktime(time.strptime(issue["updated_at"], "%Y-%m-%dT%H:%M:%SZ"))
            if age >= treshold:
                print("Labelling #%i last updated at %s" % (issue["number"], issue["updated_at"]))
                api.post("issues/%i/labels" % issue["number"], [opts.label])


def main():
    parser = argparse.ArgumentParser(description='Add review label to stale issues')
    parser.add_argument('-a', '--age', metavar='DAYS', default=90,
                        help='Label issues whose last update is older than given number of days (default: %(default)s)')
    parser.add_argument('-l', '--label', default=time.strftime('review-%Y-%m'),
                        help='Label name (default: %(default)s)')
    parser.add_argument('--repo', help='Work on this GitHub repository (owner/name)')
    opts = parser.parse_args()

    api = github.GitHub(repo=opts.repo)
    issues_review(api, opts)


if __name__ == '__main__':
    main()