Implement medicine library and cabinet

packages/api/src/modules/medicines/medicines.repository.ts

@@ -0,0 +1,81 @@
+import { MedicineModel } from '../../schemas/medicine.schema.js';
+import type {
+  CreateMedicineInput,
+  UpdateMedicineInput,
+  MedicineQueryInput,
+} from '@meshitrack/shared';
+
+export class MedicinesRepository {
+  public async findByHousehold(householdId: string, query: MedicineQueryInput) {
+    const filter: Record<string, unknown> = { householdId, isDeleted: false };
+
+    if (query.category) filter['category'] = query.category;
+    if (query.form) filter['form'] = query.form;
+    if (query.q) filter['name'] = { $regex: query.q, $options: 'i' };
+
+    if (query.cursor) {
+      const id = Buffer.from(query.cursor, 'base64').toString();
+      filter['_id'] = { $gt: id };
+    }
+
+    const limit = query.limit;
+    const items = await MedicineModel.find(filter)
+      .sort({ _id: 1 })
+      .limit(limit + 1)
+      .lean()
+      .exec();
+
+    const hasMore = items.length > limit;
+    const data = hasMore ? items.slice(0, limit) : items;
+    const cursor =
+      data.length > 0 ? Buffer.from(data[data.length - 1]._id.toString()).toString('base64') : null;
+
+    return { data, pagination: { cursor: hasMore ? cursor : null, hasMore } };
+  }
+
+  public async findById(id: string, householdId: string) {
+    return MedicineModel.findOne({ _id: id, householdId, isDeleted: false }).lean().exec();
+  }
+
+  public async findDuplicate(
+    householdId: string,
+    name: string,
+    strength: number,
+    strengthUnit: string,
+    form: string,
+    excludeId?: string,
+  ) {
+    const filter: Record<string, unknown> = {
+      householdId,
+      name,
+      strength,
+      strengthUnit,
+      form,
+      isDeleted: false,
+    };
+    if (excludeId) filter['_id'] = { $ne: excludeId };
+    return MedicineModel.findOne(filter).lean().exec();
+  }
+
+  public async create(data: CreateMedicineInput, householdId: string, createdBy: string) {
+    const medicine = new MedicineModel({ ...data, householdId, createdBy });
+    const saved = await medicine.save();
+    return saved.toObject();
+  }
+
+  public async update(id: string, householdId: string, data: UpdateMedicineInput) {
+    return MedicineModel.findOneAndUpdate(
+      { _id: id, householdId, isDeleted: false },
+      { $set: data },
+      { new: true, lean: true },
+    ).exec();
+  }
+
+  public async softDelete(id: string, householdId: string) {
+    return MedicineModel.findOneAndUpdate(
+      { _id: id, householdId, isDeleted: false },
+      { $set: { isDeleted: true } },
+      { new: true, lean: true },
+    ).exec();
+  }
+}