feat(nestjs): migrate to NestJS

packages/server/src/modules/BankingAccounts/queries/GetBankAccountSummary.ts

@@ -0,0 +1,128 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Account } from '@/modules/Accounts/models/Account.model';
+import { UncategorizedBankTransaction } from '@/modules/BankingTransactions/models/UncategorizedBankTransaction';
+import { BaseModel } from '@/models/Model';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+
+@Injectable()
+export class GetBankAccountSummary {
+  constructor(
+    @Inject(Account.name)
+    private readonly accountModel: TenantModelProxy<typeof Account>,
+
+    @Inject(UncategorizedBankTransaction.name)
+    private readonly uncategorizedBankTransactionModel: TenantModelProxy<
+      typeof UncategorizedBankTransaction
+    >,
+  ) {}
+
+  /**
+   * Retrieves the bank account meta summary
+   * @param {number} bankAccountId - The bank account id.
+   * @returns {Promise<IBankAccountSummary>}
+   */
+  public async getBankAccountSummary(bankAccountId: number) {
+    const bankAccount = await this.accountModel()
+      .query()
+      .findById(bankAccountId)
+      .throwIfNotFound();
+
+    const commonQuery = (q) => {
+      // Include just the given account.
+      q.where('accountId', bankAccountId);
+
+      // Only the not excluded.
+      q.modify('notExcluded');
+
+      // Only the not categorized.
+      q.modify('notCategorized');
+    };
+
+    interface UncategorizedTransactionsCount {
+      total: number;
+    }
+
+    // Retrieves the uncategorized transactions count of the given bank account.
+    const uncategorizedTranasctionsCount =
+      await this.uncategorizedBankTransactionModel()
+        .query()
+        .onBuild((q) => {
+          commonQuery(q);
+
+          // Only the not matched bank transactions.
+          q.withGraphJoined('matchedBankTransactions');
+          q.whereNull('matchedBankTransactions.id');
+
+          // Exclude the pending transactions.
+          q.modify('notPending');
+
+          // Count the results.
+          q.count('uncategorized_cashflow_transactions.id as total');
+          q.first();
+        });
+
+    // Retrives the recognized transactions count.
+    const recognizedTransactionsCount =
+      await this.uncategorizedBankTransactionModel()
+        .query()
+        .onBuild((q) => {
+          commonQuery(q);
+
+          q.withGraphJoined('recognizedTransaction');
+          q.whereNotNull('recognizedTransaction.id');
+
+          // Exclude the pending transactions.
+          q.modify('notPending');
+
+          // Count the results.
+          q.count('uncategorized_cashflow_transactions.id as total');
+          q.first();
+        });
+    // Retrieves excluded transactions count.
+    const excludedTransactionsCount =
+      await this.uncategorizedBankTransactionModel()
+        .query()
+        .onBuild((q) => {
+          q.where('accountId', bankAccountId);
+          q.modify('excluded');
+
+          // Exclude the pending transactions.
+          q.modify('notPending');
+
+          // Count the results.
+          q.count('uncategorized_cashflow_transactions.id as total');
+          q.first();
+        });
+
+    // Retrieves the pending transactions count.
+    const pendingTransactionsCount =
+      await this.uncategorizedBankTransactionModel()
+        .query()
+        .onBuild((q) => {
+          q.where('accountId', bankAccountId);
+          q.modify('pending');
+
+          // Count the results.
+          q.count('uncategorized_cashflow_transactions.id as total');
+          q.first();
+        });
+
+    const totalUncategorizedTransactions =
+      // @ts-ignore
+      uncategorizedTranasctionsCount?.total || 0;
+    // @ts-ignore
+    const totalRecognizedTransactions = recognizedTransactionsCount?.total || 0;
+    // @ts-ignore
+    const totalExcludedTransactions = excludedTransactionsCount?.total || 0;
+    // @ts-ignore
+    const totalPendingTransactions = pendingTransactionsCount?.total || 0;
+
+    return {
+      name: bankAccount.name,
+      totalUncategorizedTransactions,
+      totalRecognizedTransactions,
+      totalExcludedTransactions,
+      totalPendingTransactions,
+    };
+  }
+}