Dashboards: Cover the Switch variable in schema transformations - part 2. (#114549)

* feat: add v2alpha_1 conversion for the switch variable

* chore: gofmt fixes

* chore: update comments in tests

* chore: fix gofmt

* Update specs

* tests: update the v2alpha1 openapi snapshot

---------

Co-authored-by: Ivan Ortega <ivanortegaalba@gmail.com>

packages/grafana-schema/src/schema/dashboard/v2alpha1/types.spec.gen.ts

@@ -1050,7 +1050,7 @@ export const defaultTimeRangeOption = (): TimeRangeOption => ({
 	to: "now",
 });
 
-export type VariableKind = QueryVariableKind | TextVariableKind | ConstantVariableKind | DatasourceVariableKind | IntervalVariableKind | CustomVariableKind | GroupByVariableKind | AdhocVariableKind;
+export type VariableKind = QueryVariableKind | TextVariableKind | ConstantVariableKind | DatasourceVariableKind | IntervalVariableKind | CustomVariableKind | GroupByVariableKind | AdhocVariableKind | SwitchVariableKind;
 
 export const defaultVariableKind = (): VariableKind => (defaultQueryVariableKind());
 
@@ -1436,6 +1436,37 @@ export const defaultMetricFindValue = (): MetricFindValue => ({
 	text: "",
 });
 
+export interface SwitchVariableKind {
+	kind: "SwitchVariable";
+	spec: SwitchVariableSpec;
+}
+
+export const defaultSwitchVariableKind = (): SwitchVariableKind => ({
+	kind: "SwitchVariable",
+	spec: defaultSwitchVariableSpec(),
+});
+
+// Switch variable specification
+export interface SwitchVariableSpec {
+	name: string;
+	current: string;
+	enabledValue: string;
+	disabledValue: string;
+	label?: string;
+	hide: VariableHide;
+	skipUrlSync: boolean;
+	description?: string;
+}
+
+export const defaultSwitchVariableSpec = (): SwitchVariableSpec => ({
+	name: "",
+	current: "false",
+	enabledValue: "true",
+	disabledValue: "false",
+	hide: "dontHide",
+	skipUrlSync: false,
+});
+
 export interface Spec {
 	annotations: AnnotationQueryKind[];
 	// Configuration of dashboard cursor sync behavior.