Wiki Notify for Google Chat

@@ -172,11 +172,21 @@ def gapi(url, method=None, body=None, params=None): def webhook_post(cfg, payload):     """POST a message through the incoming webhook; returns the message name."""     import urllib.request+    import urllib.error     req = urllib.request.Request(         cfg["webhook"], data=json.dumps(payload).encode(),         headers={"Content-Type": "application/json; charset=UTF-8"}, method="POST")-    with urllib.request.urlopen(req, timeout=30) as r:-        resp = json.loads(r.read().decode())+    try:+        with urllib.request.urlopen(req, timeout=30) as r:+            resp = json.loads(r.read().decode())+    except urllib.error.HTTPError as e:+        # surface Chat's explanation (e.g. "message size is too large"), not just the status line+        detail = ""+        try:+            detail = e.read().decode()[:200]+        except Exception:+            pass+        raise RuntimeError(f"webhook post failed: HTTP {e.code}: {detail}")     if resp.get("error"):         raise RuntimeError(f"webhook post failed: {resp['error'].get('message')}")     return resp.get("name", "")@@ -519,20 +529,22 @@ EVENT_LABEL = {"opened": "opened", "comment": "new comment", "mention": "mention                "closed": "closed", "reopened": "reopened", "activity": "activity"}  -def render_card(items, cfg):+def render_card(items, cfg, max_rows=None, max_comments=None):     tz = tzinfo_of(cfg)     # NEEDS YOU floats to the top, then WAITING, then CLOSED; newest-first within each.     rows = sorted(items.values(), key=lambda it: (TRIAGE_RANK[triage(it)], -it["lastAt"]))     n_needs = sum(1 for it in rows if triage(it) == "needs_you")     n_wait = sum(1 for it in rows if triage(it) == "waiting")     n_closed = sum(1 for it in rows if triage(it) == "closed")-    max_rows = int(cfg.get("maxRows", 40))+    if max_rows is None:+        max_rows = int(cfg.get("maxRows", 40))     shown, overflow = rows[:max_rows], max(0, len(rows) - max_rows)     style = cfg.get("style", "table")     if style == "blocks":         widgets = render_block_widgets(shown, tz)     else:-        widgets = render_table_widgets(shown, tz, me=cfg.get("meName", "You"))+        widgets = render_table_widgets(shown, tz, me=cfg.get("meName", "You"),+                                       max_comments=max_comments)     if overflow:         widgets.append({"textParagraph": {"text": f"<i>+{overflow} older item(s) not shown</i>"}})     if not shown:@@ -550,7 +562,7 @@ EVENT_CAP = {"opened": "Opened", "comment": "Commented", "mention": "Mentioned",              "closed": "Closed", "reopened": "Reopened", "activity": "Activity"}  -def render_table_widgets(shown, tz, me="You"):+def render_table_widgets(shown, tz, me="You", max_comments=None):     """Wiki-digest-style rows (the same skeleton the wiki digest posts use):     left column = the page's hero image (clickable, opens the page); right     column = a decoratedText with the colored OPEN/CLOSED status in the@@ -607,7 +619,8 @@ def render_table_widgets(shown, tz, me="You"):         if inv:             body.append(dim(f"{me} {inv}"))         comments = it.get("comments", [])-        shown_c = comments[-8:]+        n_c = 8 if max_comments is None else max_comments+        shown_c = comments[-n_c:] if n_c > 0 else []         if len(comments) > len(shown_c):             body.append(dim(f"<i>+{len(comments) - len(shown_c)} earlier comment(s)</i>"))         for c in shown_c:@@ -669,12 +682,25 @@ def items_hash(items):     return hashlib.sha256(key.encode()).hexdigest()  +CARD_BYTE_BUDGET = 30000  # Chat 400s "message size too large" well above this; leave margin++ def push_board(cfg, state, dry_run=False, force=False):-    """Re-render the board; post + swap the card if content changed."""+    """Re-render the board; post + swap the card if content changed. If the+    render exceeds Chat's message size cap (hit live at 38 items / 46KB:+    'the total message size is too large'), degrade stepwise - fewer+    comments, then fewer rows - until it fits, and say so in the log."""     h = items_hash(state["items"])     if h == state.get("lastRenderHash") and not force:         return False-    card = render_card(state["items"], cfg)+    ladder = [(None, None), (None, 1), (30, 1), (20, 1), (12, 0), (8, 0), (5, 0)]+    card = None+    for max_rows, max_comments in ladder:+        card = render_card(state["items"], cfg, max_rows=max_rows, max_comments=max_comments)+        if len(json.dumps(card)) <= CARD_BYTE_BUDGET:+            break+    if (max_rows, max_comments) != (None, None):+        log_line(f"WARN board trimmed to fit Chat size cap (rows<={max_rows}, comments<={max_comments})")     if dry_run:         return True     old = state.get("boardMsg", "")