fix: added energy-management

energy-management/backend/src/env.ts

@@ -0,0 +1,37 @@
+import { config as loadDotenv } from "dotenv";
+import { fileURLToPath } from "node:url";
+import { dirname, join } from "node:path";
+import { z } from "zod";
+
+// In production (docker-compose) env vars are already injected via env_file;
+// this only fills gaps for local `npm run dev`, and is a no-op if the file is absent.
+loadDotenv({ path: join(dirname(fileURLToPath(import.meta.url)), "../../.env") });
+
+const envSchema = z.object({
+  PORT: z.coerce.number().default(3000),
+  INFLUX_URL: z.string().url(),
+  INFLUX_TOKEN: z.string().min(1),
+  INFLUX_ORG: z.string().min(1),
+  INFLUX_BUCKET: z.string().min(1),
+  INFLUX_MEASUREMENT: z.string().default("power"),
+  INFLUX_DOMAIN: z.string(),
+  INFLUX_ENTITY_ID: z.string(),
+  INFLUX_FIELD: z.string().default("value"),
+  INFLUX_FIELD_UNIT: z.enum(["W", "kW"]).default("W"),
+  HA_URL: z.string().url(),
+  HA_TOKEN: z.string().min(1),
+  TARGET_KW: z.coerce.number().positive(),
+  DB_PATH: z.string().default("./data/energy.db"),
+  CONTROL_LOOP_INTERVAL_MS: z.coerce.number().default(10_000),
+});
+
+export type Env = z.infer<typeof envSchema>;
+
+export function loadEnv(): Env {
+  const parsed = envSchema.safeParse(process.env);
+  if (!parsed.success) {
+    console.error("Invalid environment configuration:", parsed.error.flatten().fieldErrors);
+    process.exit(1);
+  }
+  return parsed.data;
+}