fix: bill calc

database/seeders/README-TEST-COMPANIES.md

@@ -1,38 +0,0 @@
-# Test companies seed (production-safe)
-
-Add about **1000 test companies** for a specific business, then remove them in one go.
-
-- **Business ID:** `e5e760b9-46a5-4194-bb3d-00a46c24d72a`
-- All test rows use the prefix **`TEST_SEED_`** (company name, emails, etc.) so they are easy to identify and delete without touching real data.
-
-## 1. Seed test companies
-
-From project root:
-
-```bash
-pnpm run build
-pnpm run seed:test-companies
-```
-
-Requirements:
-
-- Business `e5e760b9-46a5-4194-bb3d-00a46c24d72a` must exist.
-- At least one **Industry** must exist for that business (create one in the app if needed).
-- **Role** `USER` must exist (run `pnpm run seed:run` once if you haven’t).
-
-## 2. After testing: remove test data
-
-Same DB, same business:
-
-```bash
-pnpm run seed:cleanup-test-companies
-```
-
-This **soft-deletes** all companies whose name starts with `TEST_SEED_` and their linked users for that business. No schema changes, no hard deletes.
-
-## Changing business ID or count
-
-Edit the constants at the top of:
-
-- `database/seeders/test-companies.seeder.ts` — `TEST_BUSINESS_ID`, `TEST_COMPANIES_COUNT`
-- `database/seeders/cleanup-test-companies.seeder.ts` — `TEST_BUSINESS_ID` (must match).

database/seeders/cleanup-test-companies.seeder.ts

@@ -1,44 +0,0 @@
-import { EntityManager } from "@mikro-orm/postgresql";
-import { Seeder } from "@mikro-orm/seeder";
-import { Logger } from "@nestjs/common";
-import dayjs from "dayjs";
-
-import { TEST_SEED_PREFIX } from "./test-companies.seeder";
-import { Company } from "../../src/modules/companies/entities/company.entity";
-
-/** Must match the business ID used in TestCompaniesSeeder. */
-const TEST_BUSINESS_ID = "e5e760b9-46a5-4194-bb3d-00a46c24d72a";
-
-export class CleanupTestCompaniesSeeder extends Seeder {
-  private readonly logger = new Logger(CleanupTestCompaniesSeeder.name);
-
-  async run(em: EntityManager): Promise<void> {
-    this.logger.log(`Cleaning up test companies (name like '${TEST_SEED_PREFIX}%') for business ${TEST_BUSINESS_ID}...`);
-
-    const companies = await em.find(
-      Company,
-      {
-        name: { $like: `${TEST_SEED_PREFIX}%` },
-        business: { id: TEST_BUSINESS_ID },
-        deletedAt: null,
-      },
-      { populate: ["user"] },
-    );
-
-    if (companies.length === 0) {
-      this.logger.log("No test companies found. Nothing to delete.");
-      return;
-    }
-
-    const now = dayjs().toDate();
-    for (const company of companies) {
-      company.deletedAt = now;
-      if (company.user?.deletedAt == null) {
-        company.user.deletedAt = now;
-      }
-    }
-
-    await em.flush();
-    this.logger.log(`Soft-deleted ${companies.length} test companies and their users.`);
-  }
-}

database/seeders/test-companies.seeder.ts

@@ -1,120 +0,0 @@
-import { EntityManager } from "@mikro-orm/postgresql";
-import { Seeder } from "@mikro-orm/seeder";
-import { Logger } from "@nestjs/common";
-import { genSalt, hash } from "bcrypt";
-
-import { Business } from "../../src/modules/businesses/entities/business.entity";
-import { CompanyProduct } from "../../src/modules/companies/entities/company-product.entity";
-import { CompanyService } from "../../src/modules/companies/entities/company-service.entity";
-import { Company } from "../../src/modules/companies/entities/company.entity";
-import { CompanyStatus } from "../../src/modules/companies/enums/company-status.enum";
-import { Industry } from "../../src/modules/industries/entities/industry.entity";
-import { Role } from "../../src/modules/users/entities/role.entity";
-import { User } from "../../src/modules/users/entities/user.entity";
-import { RoleEnum } from "../../src/modules/users/enums/role.enum";
-
-/** Business ID to seed test companies for. Change or use env if needed. */
-const TEST_BUSINESS_ID = "e5e760b9-46a5-4194-bb3d-00a46c24d72a";
-
-/** All test companies/users use this prefix so they can be safely deleted later. */
-export const TEST_SEED_PREFIX = "TEST_SEED_";
-
-const TEST_COMPANIES_COUNT = 1000;
-const BATCH_SIZE = 50;
-const TEST_PASSWORD = "TestPassword1!";
-
-export class TestCompaniesSeeder extends Seeder {
-  private readonly logger = new Logger(TestCompaniesSeeder.name);
-
-  async run(em: EntityManager): Promise<void> {
-    const business = await em.findOne(Business, { id: TEST_BUSINESS_ID, deletedAt: null });
-    if (!business) {
-      this.logger.error(`Business not found: ${TEST_BUSINESS_ID}. Aborting.`);
-      throw new Error(`Business not found: ${TEST_BUSINESS_ID}`);
-    }
-
-    const industry = await em.findOne(Industry, { business: { id: TEST_BUSINESS_ID }, deletedAt: null });
-    if (!industry) {
-      this.logger.error(`No industry found for business ${TEST_BUSINESS_ID}. Create an industry first.`);
-      throw new Error("No industry found for business");
-    }
-
-    const role = await em.findOne(Role, { name: RoleEnum.USER });
-    if (!role) {
-      this.logger.error("USER role not found. Run default seed first (RoleSeeder).");
-      throw new Error("USER role not found");
-    }
-
-    const hashedPassword = await hash(TEST_PASSWORD, await genSalt(10));
-    const baseDate = "2020-01-01";
-    const baseUrl = "https://example.com";
-
-    this.logger.log(`Seeding ${TEST_COMPANIES_COUNT} test companies for business ${TEST_BUSINESS_ID}...`);
-
-    for (let i = 1; i <= TEST_COMPANIES_COUNT; i++) {
-      const pad4 = String(i).padStart(4, "0");
-      const pad5 = String(i).padStart(5, "0");
-      const pad7 = String(i).padStart(7, "0");
-      const phone = `0912${pad7}`;
-      const email = `test.seed.${i}@test.local`;
-      const nationalCode = `0000${pad5}`;
-      const userName = `testseed${i}`;
-
-      const user = em.create(User, {
-        firstName: "Test",
-        lastName: `User${i}`,
-        email,
-        phone,
-        userName,
-        nationalCode,
-        password: hashedPassword,
-        role,
-        business,
-      });
-      await em.persist(user);
-
-      const company = em.create(Company, {
-        name: `${TEST_SEED_PREFIX}Company_${pad4}`,
-        chiefExecutiveOfficer: `Test CEO ${i}`,
-        email,
-        phone,
-        identificationNumber: `TESTSEEDID${pad5}`,
-        dateOfEstablishment: new Date(baseDate),
-        address: `${TEST_SEED_PREFIX} Address ${i}`,
-        mapAddressLink: `${baseUrl}/map`,
-        description: `${TEST_SEED_PREFIX} Description ${i}`,
-        websiteUrl: `${baseUrl}`,
-        profileImageUrl: `${baseUrl}/profile.png`,
-        coverImageUrl: `${baseUrl}/cover.png`,
-        metrage: 100,
-        isActive: true,
-        status: CompanyStatus.APPROVED,
-        industry,
-        business,
-        user,
-      });
-      const product = em.create(CompanyProduct, {
-        title: `${TEST_SEED_PREFIX}Product_${i}`,
-        imageUrl: `${baseUrl}/product.png`,
-        company,
-      });
-      const service = em.create(CompanyService, {
-        title: `${TEST_SEED_PREFIX}Service_${i}`,
-        imageUrl: `${baseUrl}/service.png`,
-        company,
-      });
-      company.products.add(product);
-      company.services.add(service);
-      await em.persist(company);
-
-      if (i % BATCH_SIZE === 0) {
-        await em.flush();
-        this.logger.log(`  ... ${i}/${TEST_COMPANIES_COUNT}`);
-      }
-    }
-
-    await em.flush();
-    this.logger.log(`Done. Created ${TEST_COMPANIES_COUNT} test companies (name like '${TEST_SEED_PREFIX}%').`);
-    this.logger.warn(`To remove them later, run: pnpm run seed:cleanup-test-companies`);
-  }
-}

package.json

@@ -28,8 +28,6 @@
     "orm:drop": "mikro-orm schema:drop --run --drop-migrations-table --drop-db --config=database/mikro-orm.config.ts",
     "orm:seed": "mikro-orm seeder:create --config=database/mikro-orm.config.ts",
     "seed:run": "mikro-orm seeder:run --config=database/mikro-orm.config.ts",
-    "seed:test-companies": "mikro-orm seeder:run --config=database/mikro-orm.config.ts -- --class=TestCompaniesSeeder",
-    "seed:cleanup-test-companies": "mikro-orm seeder:run --config=database/mikro-orm.config.ts -- --class=CleanupTestCompaniesSeeder",
     "db:dump": "node scripts/db-dump.js",
     "db:restore": "node scripts/db-restore.js"
   },
@@ -74,7 +72,6 @@
     "decimal.js": "^10.5.0",
     "exceljs": "^4.4.0",
     "dotenv": "^16.5.0",
-    "exceljs": "^4.4.0",
     "fastify": "^5.3.3",
     "langchain": "^0.3.27",
     "nodemailer": "^7.0.3",

src/modules/bills/bills.service.ts

@@ -50,11 +50,11 @@ export class BillsService {
 
       for (const value of values) {
         const waterCost = new Decimal(waterRate).mul(value.waterUsage);
-        const sewageCost = waterCost.mul(waterCost);
+        const sewageCost = waterCost.mul(0.3);
-        const subtotal = waterCost.add(sewageCost);
+        const subtotal = waterCost.plus(sewageCost);
 
         const tax = subtotal.mul(0.1);
-        const totalPrice = subtotal.add(tax);
+        const totalPrice = subtotal.plus(tax);
         const company = companyMap.get(value.companyId);
         if (!company) {
           throw new BadRequestException(CompanyMessage.COMPANY_NOT_FOUND);
@@ -73,7 +73,7 @@ export class BillsService {
         const invoiceItem = em.create(InvoiceItem, {
           name: "قبض آب",
           count: value.waterUsage,
-          unitPrice: new Decimal(waterRate),
+          unitPrice: totalPrice,
           discount: new Decimal(0),
           totalPrice,
           invoice,
@@ -167,15 +167,14 @@ export class BillsService {
 
       for (const company of companies) {
         const subtotal = new Decimal(chargeRate).mul(company.metrage);
-        const tax = subtotal.mul(0.1);
+        const totalPrice = subtotal;
-        const totalPrice = subtotal.add(tax);
 
         const invoice = em.create(Invoice, {
           company,
           totalPrice,
           originalPrice: totalPrice,
           dueDate,
-          tax,
+          tax: new Decimal(0),
           business,
           bill,
         });