Warranty search finds a machine number; the collector can no longer set a printer assignment

plugins/warranty/frontend/views/warrantySearch.js

@@ -0,0 +1,44 @@
+// What the warranty list's search box matches against.
+//
+// Pulled out of WarrantiesList.vue so the field list is somewhere a test can
+// see it. It went wrong the way a field list usually does: silently, by a
+// column being added to the table and not to the filter.
+//
+// THE MACHINE NUMBER IS THE POINT. _related_machine in the warranty API exists
+// precisely because "a shopfloor PC is bought, warranted and replaced as a PC,
+// but it is FOUND by the machine it drives - nobody walks the floor looking for
+// an asset number". The payload carries it, the table renders it in a chip, and
+// the filter did not look at it - so the one identifier the feature was built
+// around was the one thing the search box could not find.
+
+/**
+ * Does this warranty match the search term?
+ *
+ * @param {object} warranty - a row from GET /api/warranties
+ * @param {string} term - the raw search box contents
+ * @returns {boolean} true when the term is empty or any searched field contains it
+ */
+export function matchesWarrantySearch(warranty, term) {
+  const needle = (term || '').trim().toLowerCase()
+  if (!needle) return true
+  if (!warranty) return false
+
+  const has = (value) => String(value ?? '').toLowerCase().includes(needle)
+
+  if (has(warranty.vendor) || has(warranty.servicelevel) || has(warranty.servicetag)) {
+    return true
+  }
+
+  return (warranty.assets || []).some((asset) => {
+    if (has(asset?.assetnumber)) return true
+    // The related machine is optional: a warranty on something that drives no
+    // machine has none, and a machine that was never linked leaves it null.
+    const machine = asset?.machine
+    return !!machine && (has(machine.machinenumber) || has(machine.name))
+  })
+}
+
+/** The fields above, in the order the placeholder should name them. */
+export const WARRANTY_SEARCH_FIELDS = [
+  'vendor', 'service level', 'tag', 'asset number', 'machine',
+]