Update Jira and post release notes to Slack when you tag a release

import re
from clickruntime import on_event, credentials, http, notify, ai

JIRA, SITE = "https://api.atlassian.com/ex/jira/your-cloud-id", "https://acme.atlassian.net/browse/"
adf = lambda text: {"type": "doc", "version": 1, "content": [{"type": "paragraph", "content": [{"type": "text", "text": text}]}]}

def jira(method, path, **kw):
    resp = http.request(method, JIRA + path, headers={"Authorization": f"Bearer {credentials.connection('jira', 'work')}", "Accept": "application/json"}, **kw)
    return resp.raise_for_status() or (resp.json() if resp.content else None)

PROJECT, DONE = "ENG", "Done"

@on_event
def handle(event):
    rel = (event.json or {}).get("release") or {}
    keys = sorted(set(re.findall(rf"{PROJECT}-\d+", rel.get("body") or "")))
    if not keys:
        return {"tickets": 0}
    project_id = jira("GET", f"/rest/api/3/project/{PROJECT}")["id"]
    version = jira("POST", "/rest/api/3/version", json={"name": rel["tag_name"], "projectId": project_id, "released": True})
    titles = []
    for key in keys:
        jira("PUT", f"/rest/api/3/issue/{key}", json={"update": {"fixVersions": [{"add": {"id": version["id"]}}]}})
        moves = jira("GET", f"/rest/api/3/issue/{key}/transitions")["transitions"]
        done = next((t for t in moves if t["to"]["name"] == DONE), None)
        if done:
            jira("POST", f"/rest/api/3/issue/{key}/transitions", json={"transition": {"id": done["id"]}})
        titles.append(f"• <{SITE}{key}|{key}> {jira('GET', f'/rest/api/3/issue/{key}?fields=summary')['fields']['summary']}")
    notes = "\n".join(titles)
    try:
        notes = ai.generate(notes, system="Rewrite as short plain-language release notes, keeping the ticket links.", max_output_tokens=500).text
    except (ai.AINotIncluded, ai.AILimitReached):
        pass
    notify.slack(f"Released {rel['tag_name']}\n{notes}", channel="#releases")
    return {"version": rel["tag_name"], "tickets": keys}