Tariffs: add outdoor temperature type and OpenMeteo (#27780)

Co-authored-by: Michael Geers <michael@geers.tv>

tests/config-tariffs.spec.ts

@@ -104,6 +104,9 @@ grid:
         "-10.0 öre",
         "Grid CO₂",
         "300 g",
+        "Solar forecast",
+        "Outdoor temperature",
+        "15.5°C",
       ].join("")
     );
   });
@@ -117,6 +120,7 @@ grid:
     const tariffFeedin = page.getByTestId("tariff-feedIn");
     const tariffCo2 = page.getByTestId("tariff-co2");
     const tariffSolar = page.getByTestId("tariff-solar");
+    const tariffTemperature = page.getByTestId("tariff-temperature");
     const tariffPlanner = page.getByTestId("tariff-planner");
     const addTariff = page.getByRole("button", { name: "Add tariff" });
     const addForecast = page.getByRole("button", { name: "Add forecast" });
@@ -126,6 +130,9 @@ grid:
     const addGridExport = modal.getByRole("button", { name: "Add grid export tariff" });
     const addCo2Forecast = modal.getByRole("button", { name: "Add CO₂ forecast" });
     const addSolarForecast = modal.getByRole("button", { name: "Add solar forecast" });
+    const addTemperatureForecast = modal.getByRole("button", {
+      name: "Add temperature forecast",
+    });
     const addPlannerForecast = modal.getByRole("button", { name: "Add planner forecast" });
     const save = modal.getByRole("button", { name: "Validate & save" });
 
@@ -184,11 +191,22 @@ grid:
     await expectModalHidden(modal);
     await expect(tariffSolar.nth(1)).toContainText("Roof West");
 
+    // create temperature forecast
+    await addForecast.click();
+    await expectModalVisible(modal);
+    await addTemperatureForecast.click();
+    await modal.getByLabel("Provider").selectOption("Demo Temperature Forecast");
+    await save.click();
+    await expectModalHidden(modal);
+    await expect(tariffTemperature).toContainText("Outdoor temperature");
+    await expect(tariffTemperature).toContainText(["Forecast", "10.0°C – 20.0°C"].join(""));
+
     // create planner forecast
     await addForecast.click();
     await expectModalVisible(modal);
-    // co2 already exists, should not be offered
+    // co2 and temperature already exist, should not be offered
     await expect(addCo2Forecast).not.toBeVisible();
+    await expect(addTemperatureForecast).not.toBeVisible();
     await expect(addSolarForecast).toBeVisible();
     await expect(addPlannerForecast).toBeVisible();
     await addPlannerForecast.click();
@@ -214,12 +232,16 @@ grid:
     await expect(tariffSolar).toHaveCount(2);
     await expect(tariffSolar.nth(0)).toContainText("Roof South");
     await expect(tariffSolar.nth(1)).toContainText("Roof West");
+    await expect(tariffTemperature).toBeVisible();
+    await expect(tariffTemperature).toContainText("Outdoor temperature");
     await expect(tariffPlanner).toBeVisible();
     await expect(tariffPlanner).toContainText("Price");
 
     // delete all in reverse order
     await deleteTariff(modal, tariffPlanner);
     await expect(tariffPlanner).toHaveCount(0);
+    await deleteTariff(modal, tariffTemperature);
+    await expect(tariffTemperature).toHaveCount(0);
     await deleteTariff(modal, tariffSolar, 1);
     await expect(tariffSolar).toHaveCount(1);
     await deleteTariff(modal, tariffSolar, 0);
@@ -235,6 +257,12 @@ grid:
     // final state: both add buttons visible again
     await expect(addTariff).toBeVisible();
     await expect(addForecast).toBeVisible();
+
+    // deletes must not leave stale refs behind that break the next start
+    await restart();
+    await page.reload();
+    await expect(addTariff).toBeVisible();
+    await expect(addForecast).toBeVisible();
   });
 
   test("currency change", async ({ page }) => {

tests/config-with-tariffs.evcc.yaml

@@ -51,3 +51,19 @@ tariffs:
   co2:
     type: fixed
     price: 300
+  temperature:
+    type: custom
+    tariff: temperature
+    forecast:
+      source: js
+      script: |
+        var now = Date.now();
+        var rates = [];
+        for (var i = 0; i < 48; i++) {
+          rates.push({
+            start: new Date(now + i * 3600000).toISOString(),
+            end: new Date(now + (i + 1) * 3600000).toISOString(),
+            value: 15.5
+          });
+        }
+        JSON.stringify(rates);