# pip install PyGithub
# Get github issues / PR for a release
# Exec with "python github_release_notes.py YOUR_GITHUB_API_ACCESS_TOKEN 4.1"

from github import Github
from collections import Counter
import sys

TOKEN=sys.argv[1]
MILESTONE=sys.argv[2]
g = Github(login_or_token=TOKEN)

# Then play with your Github objects:
org = g.get_organization("antlr")
repo = org.get_repo("stringtemplate4")
milestone = [x for x in repo.get_milestones() if x.title==MILESTONE]
milestone = milestone[0]

issues = repo.get_issues(state="closed", milestone=milestone, sort="created", direction="desc")

# dump bugs fixed
print()
print("## Issues fixed")
for x in issues:
    labels = [l.name for l in x.labels]
    if x.pull_request is None and not ("type:improvement" in labels or "type:feature" in labels):
        print("* [%s](%s) (%s)" % (x.title, x.html_url, ", ".join([l.name for l in x.labels])))


print()
# dump improvements closed for this release (issues or pulls)
print("## Improvements, features")
for x in issues:
    labels = [l.name for l in x.labels]
    if ("type:improvement" in labels or "type:feature" in labels):
        print("* [%s](%s) (%s)" % (x.title, x.html_url, ", ".join(labels)))

print()


# dump PRs closed for this release
print("## Pull requests")
for x in issues:
    labels = [l.name for l in x.labels]
    print("* [%s](%s) (%s)" % (x.title, x.html_url, ", ".join(labels)))


# dump contributors
print()
print("## Contributors")
user_counts = Counter([x.user.login for x in issues])
users = {x.user.login:x.user for x in issues}
for login,count in user_counts.most_common(10000):
    name = users[login].name
    logins = f" ({users[login].login})"
    if name is None:
        name = users[login].login
        logins = ""
    print(f"* {count:3d} items: [{name}]({users[login].html_url}){logins}")