Fix typo in energy calculation (#25259)

* New energy calculation

* more tests and stricter tests. change priority order

* more test and fix error

src/data/energy.ts

@@ -1062,7 +1062,7 @@ export const computeConsumptionSingle = (data: {
   // Grid_In -> Battery_In
   grid_to_battery = Math.min(from_grid, to_battery);
   from_grid -= grid_to_battery;
-  to_battery -= to_battery;
+  to_battery -= grid_to_battery;
 
   // Solar -> Consumption
   used_solar = Math.min(used_total_remaining, solar);

test/data/energy.test.ts

@@ -462,6 +462,8 @@ describe("Energy Usage Calculation Tests", () => {
         used_total: 9,
       }
     );
+  });
+  it("Solar -> Battery -> Grid", () => {
     assert.deepEqual(
       checkConsumptionResult({
         from_grid: 0,
@@ -482,4 +484,25 @@ describe("Energy Usage Calculation Tests", () => {
       }
     );
   });
+  it("Solar -> Grid && Grid -> Battery", () => {
+    assert.deepEqual(
+      checkConsumptionResult({
+        from_grid: 1,
+        to_grid: 1,
+        solar: 1,
+        to_battery: 1,
+        from_battery: 0,
+      }),
+      {
+        grid_to_battery: 1,
+        battery_to_grid: 0,
+        used_solar: 0,
+        used_grid: 0,
+        used_battery: 0,
+        solar_to_battery: 0,
+        solar_to_grid: 1,
+        used_total: 0,
+      }
+    );
+  });
 });