import argparse
import json
import urllib.request
import re

def main() -> None:
    parser = argparse.ArgumentParser(
        description="List undocumented PRs"
    )
    parser.add_argument("-m", "--milestone", type=int, required=True)
    args = parser.parse_args()
    
    milestone = args.milestone
    
    with urllib.request.urlopen("https://egit.irs.uni-stuttgart.de/api/v1/repos/fsfw/fsfw/milestones/" + str(milestone)) as milestone_json:
        milestone_title = json.load(milestone_json)['title']
    
    match = re.search("(v[0-9]+\.[0-9]+\.[0-9]+)", milestone_title)
    
    if not match:
        print("invalid Milestone name")
        exit(1)
    
    version = match.group(0)
    
    print("detected Version " + version)
    
    milestone_prs = []
    
    page = 1
    last_count = 1;
    while last_count != 0:
        with urllib.request.urlopen("https://egit.irs.uni-stuttgart.de/api/v1/repos/fsfw/fsfw/pulls?state=closed&milestone=" + str(milestone) + "&limit=100&page=" + str(page)) as pull_requests_json:
            pull_requests = json.load(pull_requests_json)
            for pr in pull_requests:
                milestone_prs.append(pr['number'])
            page += 1
            last_count = len(pull_requests)
    
    print("Found " + str(len(milestone_prs)) + " closed PRs in Milestone")


main()