feat: add investment reports, bond components, dashboard, and service implementation

src/app/investment/bond-investment/bond-investment.component.ts

@@ -74,7 +74,11 @@ import {
   InvestmentNonSlrLimitDto,
   InvestmentService,
   apiErrorMessage,
-  toHolding
+  toHolding,
+  toInterestTxn,
+  toPurchaseTxn,
+  toSaleTxn,
+  toTransferTxn
 } from '../investment.service';
 
 type BondType = 'GOVT_SECURITY' | 'NON_SLR' | 'BOND' | 'MUTUAL_FUND';
@@ -222,7 +226,7 @@ export class BondInvestmentComponent implements OnInit {
     this.investmentService.getPurchases().subscribe({
       next: (purchases) => {
         this.holdings = purchases.map(toHolding);
-        this.txns = purchases.map((d) => this.purchaseTxn(d));
+        this.txns = purchases.map(toPurchaseTxn);
         this.purchaseForm = this.blankPurchaseForm();
         this.loadNonSlrLimit();
         this.loadInterestLog();
@@ -253,115 +257,13 @@ export class BondInvestmentComponent implements OnInit {
       );
       this.txns = [
         ...others,
-        ...postings.map((x) => this.interestTxn(x)),
-        ...sales.map((x) => this.saleTxn(x)),
-        ...transfers.map((x) => this.transferTxn(x))
+        ...postings.map(toInterestTxn),
+        ...sales.map(toSaleTxn),
+        ...transfers.map(toTransferTxn)
       ].sort((a, b) => parseDDMMYYYY(b.txnDate).getTime() - parseDDMMYYYY(a.txnDate).getTime());
     });
   }
 
-  /** A security transfer shows the book value carried to the new security. */
-  private transferTxn(x: InvestmentSecurityTransferDto): InvestmentTxn {
-    return {
-      certNo: x.certNo,
-      instrumentType: x.bondType as InstrumentType,
-      txnType: 'TRANSFER',
-      voucherNo: x.voucherNo ?? `TRF/${x.dealNo}/${x.id}`,
-      txnDate: x.transferDate,
-      amount: x.bookValue,
-      particulars: `GOI category transfer - Deal ${x.dealNo}: ${x.fromScriptCode} ${x.fromScriptDesc} → ${x.toScriptCode} ${x.toScriptDesc}`,
-      glCode: x.toGlCode,
-      glName: x.glTransactionId
-        ? `${x.toGlName} / Cr ${x.fromGlCode} (txn ${x.glTransactionId})`
-        : `${x.toGlName} (same GL, no entry)`
-    };
-  }
-
-  /** A sale or redemption shows the money into the bank; a pending sale is not in the GL yet. */
-  private saleTxn(x: InvestmentSaleDto): InvestmentTxn {
-    if (x.saleType === 'AMORTISE') {
-      return {
-        certNo: x.certNo,
-        instrumentType: x.bondType as InstrumentType,
-        txnType: 'AMORTIZE',
-        voucherNo: x.voucherNo ?? `AMZ/${x.dealNo}/${x.id}`,
-        txnDate: x.settlementDate,
-        amount: x.bookValueSold,
-        particulars: `${x.remarks ?? 'Premium amortisation'} - Deal ${x.dealNo} - ${x.scriptDesc} (${x.accruedDays} days)`,
-        glCode: '500604',
-        glName: `Amortisation of Premium / Cr Premium on Investments (txn ${x.glTransactionId})`
-      };
-    }
-    if (x.saleType === 'WRITEOFF') {
-      return {
-        certNo: x.certNo,
-        instrumentType: x.bondType as InstrumentType,
-        txnType: 'WRITE_OFF',
-        voucherNo: x.voucherNo ?? `WOF/${x.dealNo}/${x.id}`,
-        txnDate: x.settlementDate,
-        amount: x.bookValueSold,
-        particulars: `Written off - Deal ${x.dealNo} - ${x.scriptDesc}${x.remarks ? ' - ' + x.remarks : ''}`,
-        glCode: '500605',
-        glName: `Loss on Investments / Cr ${x.investmentGlCode} (txn ${x.glTransactionId})`
-      };
-    }
-    const redeem = x.saleType === 'REDEEM';
-    const pl =
-      x.profitLoss >= 0
-        ? `profit ₹${x.profitLoss}`
-        : redeem
-          ? `premium written off ₹${-x.profitLoss}`
-          : `loss ₹${-x.profitLoss}`;
-    return {
-      certNo: x.certNo,
-      instrumentType: x.bondType as InstrumentType,
-      txnType: x.saleType,
-      voucherNo: x.voucherNo ?? `SALE/${x.dealNo}/${x.id}`,
-      txnDate: x.settlementDate,
-      amount: x.netAmount,
-      particulars: redeem
-        ? `Redeemed at maturity - Deal ${x.dealNo} - ${x.scriptDesc} (${pl})`
-        : `Sold ${x.units} units @ ${x.saleRate} to ${x.partyName ?? ''} - Deal ${x.dealNo} - ${x.scriptDesc} (${pl})`,
-      glCode: x.status === 'SETTLED' ? x.bankGlCode : '',
-      glName:
-        x.status === 'SETTLED'
-          ? `${x.bankGlName} / Cr ${x.investmentGlCode} (txn ${x.glTransactionId})`
-          : 'Not posted (pending settlement)'
-    };
-  }
-
-  /** A coupon shows the cash received into the bank; a provision the interest booked as receivable. */
-  private interestTxn(x: InvestmentInterestPostingDto): InvestmentTxn {
-    const coupon = x.lineType === 'COUPON';
-    return {
-      certNo: x.certNo,
-      instrumentType: x.bondType as InstrumentType,
-      txnType: 'INTEREST',
-      voucherNo: x.voucherNo,
-      txnDate: x.intDate,
-      amount: coupon ? x.grossInterest : x.amount,
-      particulars: `${coupon ? 'Coupon' : 'Provision'} ${x.fromDate} to ${x.toDate} - Deal ${x.dealNo} - ${x.scriptDesc}`,
-      glCode: x.drGlCode,
-      glName: `${x.drGlName} / Cr ${x.incomeGlCode} (txn ${x.glTransactionId})`
-    };
-  }
-
-  /** A purchase reaches the GL only when it is settled, dated the settlement date. */
-  private purchaseTxn(d: InvestmentPurchaseDto): InvestmentTxn {
-    const posted = !!d.glTransactionId;
-    return {
-      certNo: d.certNo,
-      instrumentType: d.bondType,
-      txnType: 'PURCHASE',
-      voucherNo: `INV/PUR/${d.dealNo}`,
-      txnDate: d.settlementDate,
-      amount: d.settlementAmount,
-      particulars: `Purchase Deal ${d.dealNo} - ${d.scriptDesc} - ${d.partyName} [${d.category}]`,
-      glCode: posted ? d.investmentGlCode : '',
-      glName: posted ? `${d.investmentGlName} (txn ${d.glTransactionId})` : 'Not posted (pending settlement)'
-    };
-  }
-
   activeTab: BondTab = 'holdings';
   /** Purchase Entry shows only the mandatory fields; the rest sit under "More Details". */
   showMoreDetails = false;