Use MWC components for ha-form (#10120)

src/components/ha-form/compute-initial-ha-form-data.ts

@@ -0,0 +1,37 @@
+import { HaFormSchema } from "./types";
+
+export const computeInitialHaFormData = (
+  schema: HaFormSchema[]
+): Record<string, any> => {
+  const data = {};
+  schema.forEach((field) => {
+    if (field.description?.suggested_value) {
+      data[field.name] = field.description.suggested_value;
+    } else if ("default" in field) {
+      data[field.name] = field.default;
+    } else if (!field.required) {
+      // Do nothing.
+    } else if (field.type === "boolean") {
+      data[field.name] = false;
+    } else if (field.type === "string") {
+      data[field.name] = "";
+    } else if (field.type === "integer") {
+      data[field.name] = "valueMin" in field ? field.valueMin : 0;
+    } else if (field.type === "constant") {
+      data[field.name] = field.value;
+    } else if (field.type === "float") {
+      data[field.name] = 0.0;
+    } else if (field.type === "select") {
+      if (field.options.length) {
+        data[field.name] = field.options[0][0];
+      }
+    } else if (field.type === "positive_time_period_dict") {
+      data[field.name] = {
+        hours: 0,
+        minutes: 0,
+        seconds: 0,
+      };
+    }
+  });
+  return data;
+};