first commit

src/db/repositories/consumer.repository.ts

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+import crypto from "node:crypto";
+import { eq } from "drizzle-orm";
+import { db } from "../client.js";
+import { consumers } from "../schema/consumers.js";
+import type { CreateConsumerInput } from "../../shared/validation/consumer.schemas.js";
+
+export class ConsumerRepository {
+  async listByProject(projectId: string) {
+    return db.select().from(consumers).where(eq(consumers.projectId, projectId));
+  }
+
+  async create(input: CreateConsumerInput) {
+    const id = crypto.randomUUID();
+    await db.insert(consumers).values({
+      id,
+      projectId: input.projectId,
+      distributionBoardId: input.distributionBoardId ?? null,
+      name: input.name,
+      category: input.category ?? null,
+      quantity: input.quantity,
+      installedPowerPerUnitKw: input.installedPowerPerUnitKw,
+      demandFactor: input.demandFactor,
+      voltageV: input.voltageV ?? null,
+      phaseCount: input.phaseCount ?? null,
+      powerFactor: input.powerFactor ?? null,
+      note: input.note ?? null,
+    });
+    return { id, ...input };
+  }
+}
+