refactoring: balance sheet report.

refactoring: trial balance sheet report.
refactoring: general ledger report.
refactoring: journal report.
refactoring: P&L report.

server/src/api/controllers/FinancialStatements/BalanceSheet.ts

@@ -0,0 +1,93 @@
+import { Inject, Service } from 'typedi';
+import { Router, Request, Response, NextFunction  } from 'express';
+import { query, ValidationChain } from 'express-validator';
+import { castArray } from 'lodash';
+import asyncMiddleware from 'api/middleware/asyncMiddleware';
+import BaseController from '../BaseController';
+import BalanceSheetStatementService from 'services/FinancialStatements/BalanceSheet/BalanceSheetService';
+
+@Service()
+export default class BalanceSheetStatementController extends BaseController{
+  @Inject()
+  balanceSheetService: BalanceSheetStatementService;
+
+  /**
+   * Router constructor.
+   */
+  router() {
+    const router = Router();
+
+    router.get(
+      '/',
+      this.balanceSheetValidationSchema,
+      this.validationResult,
+      asyncMiddleware(this.balanceSheet.bind(this))
+    );
+    return router;
+  }
+
+  /**
+   * Balance sheet validation schecma.
+   * @returns {ValidationChain[]}
+   */
+  get balanceSheetValidationSchema(): ValidationChain[] {
+    return [
+      query('accounting_method')
+        .optional()
+        .isIn(['cash', 'accural']),
+      query('from_date').optional(),
+      query('to_date').optional(),
+      query('display_columns_type')
+        .optional()
+        .isIn(['date_periods', 'total']),
+      query('display_columns_by')
+        .optional({ nullable: true, checkFalsy: true })
+        .isIn(['year', 'month', 'week', 'day', 'quarter']),
+      query('number_format.no_cents')
+        .optional()
+        .isBoolean()
+        .toBoolean(),
+      query('number_format.divide_1000')
+        .optional()
+        .isBoolean()
+        .toBoolean(),
+      query('account_ids').isArray().optional(),
+      query('account_ids.*').isNumeric().toInt(),
+      query('none_zero').optional().isBoolean().toBoolean(),
+      query('none_transactions').optional().isBoolean().toBoolean(),
+    ];
+  }
+
+  /**
+   * Retrieve the balance sheet.
+   */
+  async balanceSheet(req: Request, res: Response, next: NextFunction) {
+    const { tenantId, settings } = req;
+    let filter = this.matchedQueryData(req);
+
+    filter = {
+      ...filter,
+      accountsIds: castArray(filter.accountsIds),
+    };
+    const organizationName = settings.get({ group: 'organization', key: 'name' });
+    const baseCurrency = settings.get({ group: 'organization', key: 'base_currency' });
+
+    try {
+      const {
+        data,
+        columns,
+        query
+      } = await this.balanceSheetService.balanceSheet(tenantId, filter);
+
+      return res.status(200).send({
+        organization_name: organizationName,
+        base_currency: baseCurrency,
+        data: this.transfromToResponse(data),
+        columns: this.transfromToResponse(columns),
+        query: this.transfromToResponse(query),
+      })
+    } catch (error) {
+      next(error);
+    }
+  }
+};