feat(harfanglab): version bounds on endpoint_count (1.9.0)

version_lt, version_lte, version_gt and version_gte count the agents below or
above a build. The API matches a version only exactly, so the script pages
through the agents the other filters keep and compares number by number;
unreadable versions are reported apart.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TgjV26rz6VcP262dX4vBrD

integrations/harfanglab/scripts/endpoint_count.py

@@ -1,4 +1,4 @@
-import json, os, sys, time, urllib.request, urllib.parse, urllib.error
+import json, os, re, sys, time, urllib.request, urllib.parse, urllib.error
 
 
 RETRIES = 3
@@ -70,6 +70,28 @@ RANGE_FILTERS = {
 }
 
 
+# Version bounds. The API matches a version only exactly, and a range lookup it
+# does not support would be dropped without a word — so these are compared here,
+# number by number (4.10 is above 4.9, which a string comparison denies).
+VERSION_BOUNDS = {
+    "version_lt": lambda v, t: v < t,
+    "version_lte": lambda v, t: v <= t,
+    "version_gt": lambda v, t: v > t,
+    "version_gte": lambda v, t: v >= t,
+}
+PAGE = 500
+
+
+def parse_version(v):
+    parts = re.findall(r"\d+", str(v or ""))
+    return tuple(int(x) for x in parts) if parts else None
+
+
+def pad(a, b):
+    n = max(len(a), len(b))
+    return a + (0,) * (n - len(a)), b + (0,) * (n - len(b))
+
+
 def to_bool(v):
     if isinstance(v, bool):
         return v
@@ -109,16 +131,47 @@ def main():
         if len(kv) == 2 and kv[0].strip():
             filters[kv[0].strip()] = kv[1]
 
+    bounds = {}
+    for field in VERSION_BOUNDS:
+        value = str(inputs.get(field) or "").strip()
+        if value:
+            target = parse_version(value)
+            if target is None:
+                raise ValueError(field + " must be a version such as 4.10.2, got: " + repr(value))
+            bounds[field] = target
+
     # The agent list is a DRF paginated collection: `count` is the total number
     # of matches, independent of the page size. limit=1 keeps the payload tiny.
     agents = base + "/api/data/endpoint/Agent/"
+    if bounds:
+        # A version bound reads every agent the other filters keep and counts
+        # here. An agent with no readable version is left out and counted apart,
+        # rather than guessed above or below the bound.
+        count, scanned, unreadable, offset = 0, 0, 0, 0
+        while True:
+            page = request("GET", agents + qs(dict(filters, limit=PAGE, offset=offset)), headers)
+            rows = page.get("results") or []
+            for agent in rows:
+                scanned += 1
+                version = parse_version(agent.get("version"))
+                if version is None:
+                    unreadable += 1
+                    continue
+                if all(VERSION_BOUNDS[f](*pad(version, t)) for f, t in bounds.items()):
+                    count += 1
+            offset += len(rows)
+            if not rows or offset >= page.get("count", 0):
+                break
+        result = {"count": count, "filters": dict(filters, **{f: inputs[f] for f in bounds}),
+                  "scanned": scanned, "unreadable_version": unreadable}
+    else:
         matched = request("GET", agents + qs(dict(filters, limit=1, offset=0)), headers)
         result = {"count": matched.get("count", 0), "filters": filters}
 
     # The API silently drops a query parameter it does not recognise as a
     # filter, which yields the unfiltered total dressed up as a filtered count.
     # Returning the fleet total alongside makes that failure visible.
-    if filters != scope:
+    if filters != scope or bounds:
         everything = request("GET", agents + qs(dict(scope, limit=1, offset=0)), headers)
         result["total"] = everything.get("count", 0)
     else: