dashboard: tighten the printer, warranty and notification cards

PRINTER CARD is now supplies at or below 5 percent, a new
printers_dashboardpercent setting. The report and the card want different
scopes: the report lists anything the thresholds call low, which is right for
planning an order, while the dashboard is asking what to walk out and change
today - and a cartridge at 18 percent is not that. Lowest first.

PRINTER LOCATION WAS ALWAYS EMPTY. The lookup went through db.session.get on
locationid and produced nothing even where a location is set; the printers list
has always read it through the asset relationship, so the card does too now.

WARRANTY ROWS are identified the way the floor identifies them: the PC's
hostname and the MACHINE it drives, reusing the same lookup behind the warranty
page's machine column so the board and the report cannot disagree about which
bay a PC belongs to. No dates - expired or expiring is the whole decision when
scanning a board, and the exact day belongs on the report you order from.

NOTIFICATIONS are stacked: the type in full on one line, the message beneath,
trimmed to 100 characters with the rest on hover. Inline, the type was
truncated to make room for prose that was then truncated anyway, and neither
read. A tooltip is omitted when the text was not trimmed, because one repeating
what is already on screen is noise.

Two general additions: layout: 'stacked' on a card, and map.detailtooltip.

plugins/warranty/api/routes.py

@@ -399,13 +399,16 @@ def warranty_report():
 def dashboard_expiring():
     """Warranties running out, and ones that already have.
 
-    Already-expired first, then soonest. Expired stays on the list rather than
-    dropping off: a machine out of warranty is a purchasing decision someone
-    still has to make, and silently removing it the day it lapses is how it gets
-    missed entirely.
+    Identified the way the floor identifies them: the PC's hostname and the
+    MACHINE it drives. Nobody walks out looking for an asset number, and a
+    warranty row for a bay PC is only actionable if you know which bay.
 
-    Horizon is a setting because 90 days suits a site that budgets quarterly and
-    nobody else (ADR-015).
+    No dates. "Expired" or "expiring" is the whole decision - the exact day
+    matters when you are placing the order, which is what the warranty report
+    is for, not when you are scanning a board.
+
+    Already-expired stays listed rather than dropping off the day it lapses,
+    which is how one gets missed entirely.
     """
     from shopdb.api import Setting
 
@@ -421,7 +424,7 @@ def dashboard_expiring():
     horizon = today + timedelta(days=days)
 
     rows = []
-    query = (db.session.query(Warranty, WarrantyAsset, Asset)
+    query = (db.session.query(Warranty, Asset)
              .join(WarrantyAsset, WarrantyAsset.warrantyid == Warranty.warrantyid)
              .join(Asset, Asset.assetid == WarrantyAsset.assetid)
              .filter(Warranty.isactive.is_(True),
@@ -429,16 +432,33 @@ def dashboard_expiring():
                      Warranty.enddate <= horizon,
                      Asset.isactive.is_(True)))
 
-    for warranty, _link, asset in query.all():
+    for warranty, asset in query.all():
         remaining = (warranty.enddate - today).days
+        # Reuses the machine lookup behind the warranty page's machine column,
+        # so the board and the report agree about which bay a PC belongs to.
+        machine = _related_machine(asset)
         rows.append({
             'assetid': asset.assetid,
-            'assetnumber': asset.assetnumber or asset.name or str(asset.assetid),
-            'enddate': warranty.enddate.isoformat(),
-            'provider': warranty.provider,
-            'daysleft': remaining,
+            'hostname': _hostname(asset) or asset.assetnumber or asset.name,
+            'machinenumber': machine['machinenumber'] if machine else None,
             'state': 'expired' if remaining < 0 else 'expiring',
+            'daysleft': remaining,
         })
 
     rows.sort(key=lambda r: r['daysleft'])
     return success_response(rows[:50])
+
+
+def _hostname(asset):
+    """The PC's hostname, when the covered asset is a PC.
+
+    Optional import: a lean site may not install the computers plugin, and a
+    warranty on a printer or a machine has no hostname at all. Falls back to
+    the asset number, which is what the row shows either way.
+    """
+    try:
+        from plugins.computers.models import Computer
+    except ImportError:
+        return None
+    computer = Computer.query.filter_by(assetid=asset.assetid).first()
+    return computer.hostname if computer else None

plugins/warranty/plugin.py

@@ -133,12 +133,13 @@ class WarrantyPlugin(BasePlugin):
                 'empty': 'hide',
                 'position': 50,
                 'map': {
-                    'title': 'assetnumber',
+                    'title': 'hostname',
                     'detail': 'state',
-                    'meta': [
-                        {'key': 'enddate', 'label': 'ends', 'format': 'date'},
-                        {'key': 'provider'},
-                    ],
+                    # The bay, which is how the floor identifies the PC. No
+                    # date: expired or expiring is the whole decision when
+                    # scanning a board, and the exact day belongs on the report
+                    # you order from.
+                    'meta': [{'key': 'machinenumber', 'label': 'machine'}],
                     'link': '/assets/{assetid}',
                 },
             },