feat: add relay composables

src/types/mappers/relayDtoMapper.ts

@@ -0,0 +1,13 @@
+import { isNil } from '../../utils/isNil';
+import { RelayState, Relay, type RelayDto } from '../relay';
+
+const relayStateToDomain = (dto: string | null): RelayState => {
+  if (isNil(dto) || dto.trim() === '') {
+    return RelayState.Off;
+  }
+  return dto.trim().toLowerCase() === 'on' ? RelayState.On : RelayState.Off;
+};
+
+export const relayDtoToDomain = (dto: RelayDto): Relay => {
+  return new Relay(dto.id, relayStateToDomain(dto.state), dto.label);
+};

src/types/relay.ts

@@ -0,0 +1,20 @@
+import type { components } from '../api/schema';
+
+export type RelayDto = components['schemas']['RelayDto'];
+
+export enum RelayState {
+  On = 'on',
+  Off = 'off',
+}
+
+export class Relay {
+  id: number;
+  state: RelayState;
+  label: string;
+
+  constructor(id: number, state: RelayState, label: string) {
+    this.id = id;
+    this.state = state;
+    this.label = label;
+  }
+}