feat: price calculator

src/database/migrations/1726045820711-add-tax-item-transaction.ts

@@ -16,15 +16,27 @@ export class AddTaxItemTransaction1726045820711 implements MigrationInterface {
     await queryRunner.query(
       `ALTER TABLE "transaction_item_breakdowns" ADD "total_profit_share" numeric`,
     );
-    await queryRunner.query(
-      `ALTER TABLE "price_formulas" ADD "value_for" character varying NOT NULL DEFAULT 'dpp'`,
-    );
     await queryRunner.query(
       `ALTER TABLE "transaction_item_taxes" ADD CONSTRAINT "FK_f5c4966a381d903899cafb4b5ba" FOREIGN KEY ("transaction_id") REFERENCES "transaction_items"("id") ON DELETE CASCADE ON UPDATE CASCADE`,
     );
     await queryRunner.query(
       `ALTER TABLE "t_breakdown_item_taxes" ADD CONSTRAINT "FK_74bedce7e94f6707ddf26ef0c0f" FOREIGN KEY ("transaction_id") REFERENCES "transaction_item_breakdowns"("id") ON DELETE CASCADE ON UPDATE CASCADE`,
     );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_items" ADD "payment_total_dpp" numeric`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" ADD "payment_total_dpp" numeric`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_items" ADD "payment_total_tax" numeric`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" ADD "payment_total_tax" numeric`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" ADD "total_share_tenant" numeric`,
+    );
   }
 
   public async down(queryRunner: QueryRunner): Promise<void> {
@@ -34,9 +46,6 @@ export class AddTaxItemTransaction1726045820711 implements MigrationInterface {
     await queryRunner.query(
       `ALTER TABLE "transaction_item_taxes" DROP CONSTRAINT "FK_f5c4966a381d903899cafb4b5ba"`,
     );
-    await queryRunner.query(
-      `ALTER TABLE "price_formulas" DROP COLUMN "value_for"`,
-    );
     await queryRunner.query(
       `ALTER TABLE "transaction_item_breakdowns" DROP COLUMN "total_profit_share"`,
     );
@@ -45,5 +54,20 @@ export class AddTaxItemTransaction1726045820711 implements MigrationInterface {
     );
     await queryRunner.query(`DROP TABLE "t_breakdown_item_taxes"`);
     await queryRunner.query(`DROP TABLE "transaction_item_taxes"`);
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" DROP COLUMN "payment_total_dpp"`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_items" DROP COLUMN "payment_total_dpp"`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" DROP COLUMN "payment_total_tax"`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_items" DROP COLUMN "payment_total_tax"`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "transaction_item_breakdowns" DROP COLUMN "total_share_tenant"`,
+    );
   }
 }

src/database/migrations/1726365023179-add-formula-to-tax.ts

@@ -0,0 +1,17 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class AddFormulaToTax1726365023179 implements MigrationInterface {
+  name = 'AddFormulaToTax1726365023179';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`ALTER TABLE "taxes" ADD "formula_render" json`);
+    await queryRunner.query(
+      `ALTER TABLE "taxes" ADD "formula_string" character varying`,
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`ALTER TABLE "taxes" DROP COLUMN "formula_string"`);
+    await queryRunner.query(`ALTER TABLE "taxes" DROP COLUMN "formula_render"`);
+  }
+}

src/modules/transaction/sales-price-formula/data/services/sales-price-formula-data.service.ts

@@ -6,12 +6,15 @@ import { SalesPriceFormulaModel } from '../models/sales-price-formula.model';
 import { CONNECTION_NAME } from 'src/core/strings/constants/base.constants';
 import { Repository } from 'typeorm';
 import { FormulaType } from '../../constants';
+import { TaxModel } from 'src/modules/transaction/tax/data/models/tax.model';
 
 @Injectable()
 export class SalesPriceFormulaDataService extends BaseDataService<SalesPriceFormulaEntity> {
   constructor(
     @InjectRepository(SalesPriceFormulaModel, CONNECTION_NAME.DEFAULT)
     private repo: Repository<SalesPriceFormulaModel>,
+    @InjectRepository(TaxModel, CONNECTION_NAME.DEFAULT)
+    private tax: Repository<TaxModel>,
   ) {
     super(repo);
   }
@@ -23,4 +26,23 @@ export class SalesPriceFormulaDataService extends BaseDataService<SalesPriceForm
       },
     });
   }
+
+  async salesPriceFormula() {
+    const salesFormula = await this.repo.findOne({
+      where: {
+        type: FormulaType.SALES_PRICE,
+      },
+    });
+
+    const taxes = await this.tax.find();
+
+    for (const tax of taxes) {
+      salesFormula.formula_string = salesFormula.formula_string.replace(
+        tax.name,
+        `(${tax.formula_string})`,
+      );
+    }
+
+    return salesFormula;
+  }
 }

src/modules/transaction/sales-price-formula/domain/usecases/managers/helpers/calculation-formula.helper.ts

@@ -9,22 +9,23 @@ import { apm } from 'src/core/apm';
 
 export function calculateFormula(
   formula: string,
-  variable: object[],
+  variable: object,
   total: number,
+  solveFor = 'dpp',
 ) {
   try {
     const x1 = math.simplify(formula, variable).toString();
-    console.log('Formula ', x1);
+    // console.log('Formula ', x1);
     const dppFormula = parse(x1);
     const totalFormula = parse(total.toString());
     const equation = new Equation(totalFormula, dppFormula);
 
-    console.log(equation.toString());
-    const result = equation.solveFor('dpp').toString();
-    console.log(result, 'formula');
+    // console.log(equation.toString());
+    const result = equation.solveFor(solveFor).toString();
+    // console.log(result, 'formula');
 
     const value = math.evaluate(result);
-    console.log(value, 'value');
+    // console.log(value, 'value');
 
     return value;
   } catch (e) {

src/modules/transaction/tax/data/models/tax.model.ts

@@ -10,4 +10,10 @@ export class TaxModel extends BaseStatusModel<TaxEntity> implements TaxEntity {
 
   @Column('float', { name: 'value', default: 0 })
   value: number;
+
+  @Column('json', { name: 'formula_render', nullable: true })
+  formula_render: any;
+
+  @Column('varchar', { name: 'formula_string', nullable: true })
+  formula_string: string;
 }

src/modules/transaction/tax/data/services/tax-data.service.ts

@@ -29,7 +29,7 @@ export class TaxDataService extends BaseDataService<TaxEntity> {
 
     for (const tax of taxes) {
       const { name, value } = tax;
-      keyVal[name] = value;
+      keyVal[name] = value / 100;
     }
 
     return keyVal;

src/modules/transaction/tax/domain/entities/tax.entity.ts

@@ -3,4 +3,5 @@ import { BaseStatusEntity } from 'src/core/modules/domain/entities/base-status.e
 export interface TaxEntity extends BaseStatusEntity {
   name: string;
   value: number;
+  formula_string?: string;
 }

src/modules/transaction/transaction/data/models/transaction-item.model.ts

@@ -68,6 +68,12 @@ export class TransactionItemModel
   @Column('decimal', { name: 'total_profit_share', nullable: true })
   total_profit_share: number;
 
+  @Column('decimal', { nullable: true })
+  payment_total_dpp: number;
+
+  @Column('decimal', { nullable: true })
+  payment_total_tax: number;
+
   @Column('int', { name: 'qty', nullable: true })
   qty: number;
 
@@ -129,6 +135,15 @@ export class TransactionItemBreakdownModel extends BaseCoreModel<TransactionBund
   @Column('decimal', { nullable: true })
   total_profit_share: number;
 
+  @Column('decimal', { nullable: true })
+  total_share_tenant: number;
+
+  @Column('decimal', { nullable: true })
+  payment_total_dpp: number;
+
+  @Column('decimal', { nullable: true })
+  payment_total_tax: number;
+
   @ManyToOne(() => TransactionItemModel, (model) => model.bundling_items, {
     onDelete: 'CASCADE',
     onUpdate: 'CASCADE',

src/modules/transaction/transaction/domain/entities/transaction-item.entity.ts

@@ -34,4 +34,5 @@ export interface TransactionBundlingItemEntity extends BaseCoreEntity {
   hpp: number;
   base_price: number;
   item_rates: number;
+  total_price?: number;
 }

src/modules/transaction/transaction/domain/usecases/calculator/price.calculator.ts

@@ -3,6 +3,11 @@ import { SalesPriceFormulaDataService } from 'src/modules/transaction/sales-pric
 import { TaxDataService } from 'src/modules/transaction/tax/data/services/tax-data.service';
 import { TransactionEntity } from '../../entities/transaction.entity';
 import { calculateFormula } from 'src/modules/transaction/sales-price-formula/domain/usecases/managers/helpers/calculation-formula.helper';
+import * as math from 'mathjs';
+import {
+  TransactionBundlingItemEntity,
+  TransactionItemEntity,
+} from '../../entities/transaction-item.entity';
 
 @Injectable()
 export class PriceCalculator {
@@ -11,56 +16,159 @@ export class PriceCalculator {
     private taxService: TaxDataService,
   ) {}
 
-  private initialValue(tax: any) {
-    if (typeof tax !== 'object' || tax === null) {
-      return null; // Return null for non-object values
+  private initialValue(formulas: any[]) {
+    const tax = {};
+    for (const formula of formulas) {
+      tax[`${formula.name}_value`] = null;
     }
 
-    for (const key in tax) {
-      if (tax.hasOwnProperty(key)) {
-        tax[key] = null;
-      }
-    }
-
-    tax['dpp'] = null;
-
     return tax;
   }
 
   async calculate(transaction: TransactionEntity) {
-    const taxes = await this.taxService.taxKeyValue();
-    const formulas = await this.formulaService.profitShareFormula();
-    const values = this.initialValue(taxes);
+    const prices = [];
+    // for (const item of transaction.items) {
+    //   const price = await this.calculateItem(item);
+    //   const priceValues = this.calculatePrice(price);
+
+    //   prices.push(priceValues);
+    // }
+
+    for (let i = 0; i < transaction.items.length; i++) {
+      const item = transaction.items[i];
+      const price = await this.calculateItem(item);
+      const priceValues = this.calculatePrice(price);
+      prices.push(priceValues);
+
+      if (item.bundling_items) {
+        for (let b = 0; b < item.bundling_items.length; b++) {
+          const bundling = item.bundling_items[b];
+          bundling.total_price = bundling.item_rates ?? bundling.base_price;
+
+          const bundlingPrice = await this.calculateItem(bundling);
+          const bundlingValues = this.calculatePrice(bundlingPrice);
+
+          Object.assign(bundling, bundlingValues);
+          item.bundling_items[b] = bundling;
+        }
+      }
+
+      Object.assign(item, priceValues);
+      transaction.items[i] = item;
+    }
+
+    const { payment_total_dpp, ...otherValue } =
+      this.sumArrayBasedOnObjectKey(prices);
+
+    return { dpp_value: payment_total_dpp, other: otherValue, tax_datas: [] };
+  }
+
+  async calculateItem(
+    transaction: TransactionItemEntity | TransactionBundlingItemEntity,
+  ) {
+    const itemShare = 20 / 100;
+    const profitShare = 10 / 100;
+
+    const tax = await this.taxService.taxKeyValue();
+    const taxes = { ...tax, item_share: itemShare, profit_share: profitShare };
+    const formulas = await this.formulaService.salesPriceFormula();
+    const taxFormula = await this.taxService.getManyByOptions({});
+    const shareFormulas = await this.formulaService.profitShareFormula();
+    const values = {
+      total: transaction.total_price,
+      ...this.initialValue(taxFormula),
+      ...taxes,
+    };
+
+    // const dpp = formulas.find((formula) => formula.value_for == 'dpp');
+    const dpp = formulas;
 
-    const dpp = formulas.find((formula) => formula.value_for == 'dpp');
     const dppValue = calculateFormula(
       dpp.formula_string,
       taxes,
-      transaction.payment_total_net_profit,
+      transaction.total_price,
     );
 
     values['dpp'] = dppValue;
+    values['dpp_value'] = dppValue;
 
+    let calledVariable = [];
     do {
-      const valueFor = this.withNullValue(values);
-      const formula = formulas[valueFor];
-      let result;
+      const valueFor = this.withNullValue(values, calledVariable);
+      const formula = taxFormula.find(
+        (formula) => `${formula.name}_value` == valueFor,
+      );
+      let result = null;
 
       try {
-        result = calculateFormula(
-          formula.formula_string,
-          values,
-          transaction.payment_total_net_profit,
-        );
-      } catch (error) {}
+        result = math.evaluate(formula.formula_string, values);
+        calledVariable = [];
+      } catch (error) {
+        calledVariable.push(valueFor);
+        console.log(error);
+      }
 
       values[valueFor] = result;
-      values[`${valueFor}_value`] = result;
+      // values[`${valueFor}_value`] = result;
     } while (this.containsNullValue(values));
 
+    const itemShareFormula = shareFormulas.find(
+      (f) => f.value_for == 'item_share',
+    );
+    values['item_share_value'] = math.evaluate(
+      itemShareFormula.formula_string,
+      values,
+    );
+
+    const profitShareFormula = shareFormulas.find(
+      (f) => f.value_for == 'profit_share',
+    );
+    values['profit_share_value'] = math.evaluate(
+      profitShareFormula.formula_string,
+      values,
+    );
+
     return { dpp_value: dppValue, tax_datas: values };
   }
 
+  calculatePrice(prices: any) {
+    const data = prices.tax_datas;
+    const filteredObject: any = Object.keys(data)
+      .filter((key) => key.endsWith('_value'))
+      .reduce((acc, key) => ({ ...acc, [key]: data[key] }), {});
+
+    const { dpp_value, item_share_value, profit_share_value, ...tax } =
+      filteredObject;
+    const taxes = this.sumPriceObject(tax);
+    return {
+      total_profit_share: item_share_value,
+      total_share_tenant: profit_share_value,
+      payment_total_tax: taxes,
+      payment_total_dpp: dpp_value,
+    };
+  }
+
+  sumArrayBasedOnObjectKey(arr) {
+    return arr.reduce((acc, cur) => {
+      Object.keys(cur).forEach((key) => {
+        if (!acc[key]) {
+          acc[key] = 0;
+        }
+        acc[key] += cur[key];
+      });
+      return acc;
+    }, {});
+  }
+
+  sumPriceObject(taxes: any): number {
+    let total = 0;
+    for (const tax in taxes) {
+      total += taxes[tax] ?? 0;
+    }
+
+    return total;
+  }
+
   containsNullValue(obj) {
     if (typeof obj !== 'object' || obj === null) {
       return obj === null; // Return true if the value itself is null
@@ -77,7 +185,11 @@ export class PriceCalculator {
     return false; // If no null values are found, return false
   }
 
-  withNullValue(obj) {
+  withNullValue(mainObj, called = []) {
+    const obj = { ...mainObj };
+    for (const variable of called) {
+      delete obj[variable];
+    }
     if (typeof obj !== 'object' || obj === null) {
       return null; // Return null for non-object values
     }

src/modules/transaction/transaction/domain/usecases/transaction-read.orchestrator.ts

@@ -6,6 +6,7 @@ import { PaginationResponse } from 'src/core/response/domain/ok-response.interfa
 import { BaseReadOrchestrator } from 'src/core/modules/domain/usecase/orchestrators/base-read.orchestrator';
 import { DetailTransactionManager } from './managers/detail-transaction.manager';
 import { TABLE_NAME } from 'src/core/strings/constants/table.constants';
+import { PriceCalculator } from './calculator/price.calculator';
 
 @Injectable()
 export class TransactionReadOrchestrator extends BaseReadOrchestrator<TransactionEntity> {
@@ -13,6 +14,7 @@ export class TransactionReadOrchestrator extends BaseReadOrchestrator<Transactio
     private indexManager: IndexTransactionManager,
     private detailManager: DetailTransactionManager,
     private serviceData: TransactionReadService,
+    private calculator: PriceCalculator,
   ) {
     super();
   }
@@ -30,4 +32,53 @@ export class TransactionReadOrchestrator extends BaseReadOrchestrator<Transactio
     await this.detailManager.execute();
     return this.detailManager.getResult();
   }
+
+  async dummyCalculate(id: string): Promise<void> {
+    const transaction = await this.serviceData.getOneByOptions({
+      where: {
+        id,
+      },
+      relations: ['items', 'items.bundling_items'],
+    });
+
+    const price = await this.calculator.calculate(transaction);
+    transaction.payment_total_profit =
+      transaction.payment_total -
+      price.other.total_profit_share -
+      price.other.payment_total_tax -
+      price.other.total_share_tenant;
+    transaction.payment_total_dpp = price.dpp_value;
+    transaction.payment_total_share = price.other.total_profit_share;
+    transaction.payment_total_tax = price.other.payment_total_tax;
+    console.log({ price }, transaction.payment_total);
+  }
+
+  async calculatePrice(): Promise<void> {
+    const transactions = await this.serviceData.getManyByOptions({
+      where: {
+        is_recap_transaction: false,
+      },
+      relations: ['items', 'items.bundling_items'],
+    });
+
+    for (const transaction of transactions) {
+      try {
+        const price = await this.calculator.calculate(transaction);
+        transaction.payment_total_profit =
+          transaction.payment_total -
+          price.other.total_profit_share -
+          price.other.payment_total_tax -
+          price.other.total_share_tenant;
+        transaction.payment_total_dpp = price.dpp_value;
+        transaction.payment_total_share = price.other.total_profit_share;
+        transaction.payment_total_tax = price.other.payment_total_tax;
+        console.log(transaction.id);
+        await this.serviceData.getRepository().save(transaction);
+
+        // break;
+      } catch (error) {
+        console.log(error);
+      }
+    }
+  }
 }

src/modules/transaction/transaction/infrastructure/transaction-read.controller.ts

@@ -27,4 +27,18 @@ export class TransactionReadController {
   async detail(@Param('id') id: string): Promise<TransactionEntity> {
     return await this.orchestrator.detail(id);
   }
+
+  @Public(true)
+  @Get('dummy/:id')
+  async calculate(@Param('id') id: string): Promise<string> {
+    this.orchestrator.dummyCalculate(id);
+    return 'OK';
+  }
+
+  @Public(true)
+  @Get('dummy2/calculate')
+  async calculateAll(): Promise<string> {
+    this.orchestrator.calculatePrice();
+    return 'OK';
+  }
 }

src/modules/transaction/transaction/transaction.module.ts

@@ -39,6 +39,7 @@ import { PdfMakeManager } from 'src/modules/configuration/export/domain/managers
 import { PaymentMethodDataService } from '../payment-method/data/services/payment-method-data.service';
 import { PaymentMethodModel } from '../payment-method/data/models/payment-method.model';
 import { TransactionDemographyModel } from './data/models/transaction-demography.model';
+import { PriceCalculator } from './domain/usecases/calculator/price.calculator';
 
 @Module({
   exports: [TransactionReadService],
@@ -61,6 +62,7 @@ import { TransactionDemographyModel } from './data/models/transaction-demography
   ],
   controllers: [TransactionDataController, TransactionReadController],
   providers: [
+    PriceCalculator,
     RefundUpdatedHandler,
     PosTransactionHandler,
     MidtransCallbackHandler,