Fix: TrueNAS Core support for pool stats (#3206)

---------

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

docs/widgets/services/truenas.md

@@ -11,6 +11,8 @@ To create an API Key, follow [the official TrueNAS documentation](https://www.tr
 
 A detailed pool listing is disabled by default, but can be enabled with the `enablePools` option.
 
+To use the `enablePools` option with TrueNAS Core, the `nasType` parameter is required.
+
 ```yaml
 widget:
   type: truenas
@@ -19,4 +21,5 @@ widget:
   password: pass # not required if using api key
   key: yourtruenasapikey # not required if using username / password
   enablePools: true # optional, defaults to false
+  nasType: scale # defaults to scale, must be set to 'core' if using enablePools with TrueNAS Core
 ```

src/utils/config/service-helpers.js

@@ -450,6 +450,7 @@ export function cleanServiceGroups(groups) {
 
           // truenas
           enablePools,
+          nasType,
 
           // unifi
           site,
@@ -522,6 +523,7 @@ export function cleanServiceGroups(groups) {
         }
         if (type === "truenas") {
           if (enablePools !== undefined) cleanedService.widget.enablePools = JSON.parse(enablePools);
+          if (nasType !== undefined) cleanedService.widget.nasType = nasType;
         }
         if (["diskstation", "qnap"].includes(type)) {
           if (volume) cleanedService.widget.volume = volume;

src/widgets/truenas/component.jsx

@@ -40,7 +40,15 @@ export default function Component({ service }) {
       </Container>
       {enablePools &&
         poolsData.map((pool) => (
-          <Pool key={pool.id} name={pool.name} healthy={pool.healthy} allocated={pool.allocated} free={pool.free} />
+          <Pool
+            key={pool.id}
+            name={pool.name}
+            healthy={pool.healthy}
+            allocated={pool.allocated}
+            free={pool.free}
+            data={pool.data}
+            nasType={widget?.nasType ?? "scale"}
+          />
         ))}
     </>
   );

src/widgets/truenas/pool.jsx

@@ -1,8 +1,18 @@
 import classNames from "classnames";
 import prettyBytes from "pretty-bytes";
 
-export default function Pool({ name, free, allocated, healthy }) {
+export default function Pool({ name, free, allocated, healthy, data, nasType }) {
-  const total = free + allocated;
+  let total = 0;
+  if (nasType === "scale") {
+    total = free + allocated;
+  } else {
+    allocated = 0; // eslint-disable-line no-param-reassign
+    for (let i = 0; i < data.length; i += 1) {
+      total += data[i].stats.size;
+      allocated += data[i].stats.allocated; // eslint-disable-line no-param-reassign
+    }
+  }
+
   const usedPercent = Math.round((allocated / total) * 100);
   const statusColor = healthy ? "bg-green-500" : "bg-yellow-500";
 

src/widgets/truenas/widget.js

@@ -25,6 +25,7 @@ const widget = {
           healthy: entry.healthy,
           allocated: entry.allocated,
           free: entry.free,
+          data: entry.topology.data,
         })),
     },
   },