feat: interest posting

2026-10-05 12:39:14 +05:30
parent 1ffac4b1e5
commit 4fc6784695
10 changed files with 915 additions and 189 deletions
@@ -11,11 +11,14 @@ import { FormsModule } from '@angular/forms';
 import { FaIconComponent } from '@fortawesome/angular-fontawesome';
 import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
 import { SettingsService } from 'app/settings/settings.service';
+import { exportWorkbook } from '../cashier/cashier-export';
 import {
  InterestPostingDue,
  InterestPostingReport,
  InterestPostingReportDetail,
-  InterestPostingReportService
+  InterestPostingReportService,
+  InterestPreviewRow,
+  ReportScope
 } from './interest-posting-report.service';

 /**
@@ -51,15 +54,48 @@ export class InterestPostingReportComponent implements OnInit {
  /** Products with interest due and no report yet — the noon job ran before they had anything due, or failed. */
  due: InterestPostingDue[] = [];

+  /** 'own' — the user's own branch; 'others' — every other branch, a head-office-only tab. */
+  tab: ReportScope = 'own';
+  isHeadOffice = false;
+  myBranch = '';
+
  ngOnInit(): void {
    this.postingDate = this.businessDateIso();
+    this.reportService.context().subscribe({
+      next: (ctx) => {
+        this.isHeadOffice = !!ctx?.headOffice;
+        this.myBranch = ctx?.officeName ?? '';
+      },
+      error: () => (this.isHeadOffice = false)
+    });
    this.load();
  }

+  switchTab(tab: ReportScope): void {
+    if (this.tab === tab) {
+      return;
+    }
+    this.tab = tab;
+    this.selected = null;
+    this.notice = '';
+    this.load();
+  }
+
+  /** Acting for another branch is the head office's exception, so it is spelt out before it happens. */
+  private confirmOnBehalf(officeName: string, action: string): boolean {
+    if (this.tab !== 'others') {
+      return true;
+    }
+    return confirm(
+      `${officeName} has not opened today. You are about to ${action} its interest posting report on its behalf, ` +
+        'from the head office. Continue?'
+    );
+  }
+
  load(): void {
    this.loading = true;
    this.errorMessage = '';
-    this.reportService.list(this.postingDate || undefined).subscribe({
+    this.reportService.list(this.postingDate || undefined, undefined, undefined, this.tab).subscribe({
      next: (reports) => {
        this.reports = reports ?? [];
        this.loading = false;
@@ -75,13 +111,16 @@ export class InterestPostingReportComponent implements OnInit {
        this.errorMessage = this.messageOf(err, 'Could not load the interest posting reports.');
      }
    });
-    this.reportService.dueWithoutReport(this.postingDate || undefined).subscribe({
+    this.reportService.dueWithoutReport(this.postingDate || undefined, this.tab).subscribe({
      next: (due) => (this.due = due ?? []),
      error: () => (this.due = [])
    });
  }

  generate(item: InterestPostingDue): void {
+    if (!this.confirmOnBehalf(item.officeName, 'generate')) {
+      return;
+    }
    this.busy = true;
    this.notice = '';
    this.errorMessage = '';
@@ -111,7 +150,8 @@ export class InterestPostingReportComponent implements OnInit {
    if (
      !confirm(
        `Regenerate the interest posting report for ${report.productName} — ${report.officeName}? It will need approving again.`
-      )
+      ) ||
+      !this.confirmOnBehalf(report.officeName, 'regenerate')
    ) {
      return;
    }
@@ -138,7 +178,8 @@ export class InterestPostingReportComponent implements OnInit {
      !confirm(
        `Approve interest of ₹${report.totalInterest} across ${report.accountCount} account(s) for ${report.productName}? ` +
          'It will be posted when the branch closes the day.'
-      )
+      ) ||
+      !this.confirmOnBehalf(report.officeName, 'approve')
    ) {
      return;
    }
@@ -177,8 +218,165 @@ export class InterestPostingReportComponent implements OnInit {
    );
  }

+  /** Pending reports that block this user's own day close; another branch's pending reports block only that branch. */
  get pendingCount(): number {
-    return this.reports.filter((r) => r.status === 'GENERATED').length;
+    return this.tab === 'own' ? this.reports.filter((r) => r.status === 'GENERATED').length : 0;
+  }
+
+  // ── Preview: what each account has earned so far, as if posted today. View only. ──
+
+  showPreview = false;
+  previewLoading = false;
+  previewRows: InterestPreviewRow[] = [];
+  previewAsOf = '';
+
+  openPreview(): void {
+    this.showPreview = true;
+    this.previewLoading = true;
+    this.errorMessage = '';
+    this.reportService.preview().subscribe({
+      next: (rows) => {
+        this.previewRows = rows ?? [];
+        this.previewAsOf = this.previewRows[0]?.asOf ?? this.businessDateIso();
+        this.previewLoading = false;
+      },
+      error: (err) => {
+        this.previewLoading = false;
+        this.previewRows = [];
+        this.errorMessage = this.messageOf(err, 'Could not load the interest preview.');
+      }
+    });
+  }
+
+  closePreview(): void {
+    this.showPreview = false;
+  }
+
+  get previewTotal(): number {
+    return this.previewRows.reduce((sum, r) => sum + Number(r.interest || 0), 0);
+  }
+
+  /** Totals by branch and product, for the summary above the account list and the export. */
+  get previewGroups(): {
+    officeName: string;
+    productName: string;
+    postingDate: string;
+    accounts: number;
+    interest: number;
+  }[] {
+    const map = new Map<
+      string,
+      { officeName: string; productName: string; postingDate: string; accounts: number; interest: number }
+    >();
+    this.previewRows.forEach((r) => {
+      const key = `${r.officeName}|${r.productName}`;
+      const g = map.get(key) ?? {
+        officeName: r.officeName,
+        productName: r.productName,
+        postingDate: r.postingDate,
+        accounts: 0,
+        interest: 0
+      };
+      g.accounts += 1;
+      g.interest += Number(r.interest || 0);
+      map.set(key, g);
+    });
+    return [...map.values()];
+  }
+
+  exportPreview(): void {
+    const stamp = `Interest earned to ${this.previewAsOf} — preview, not posted`;
+    exportWorkbook(
+      [
+        {
+          sheetName: 'By account',
+          title: 'Savings Interest Preview',
+          subtitle: stamp,
+          headers: [
+            'Branch',
+            'Product',
+            'Account No',
+            'Customer',
+            'Balance',
+            'Rate %',
+            'Cycle Start',
+            'Posting Date',
+            'Interest So Far'
+          ],
+          widths: [
+            18,
+            22,
+            20,
+            26,
+            16,
+            8,
+            12,
+            12,
+            16
+          ],
+          rows: [
+            ...this.previewRows.map((r) => [
+              r.officeName,
+              r.productName,
+              r.accountNo,
+              r.clientName,
+              Number(r.balance || 0),
+              Number(r.rate || 0),
+              r.cycleStart,
+              r.postingDate,
+              Number(r.interest || 0)
+            ]),
+            [
+              'TOTAL',
+              '',
+              '',
+              '',
+              '',
+              '',
+              '',
+              '',
+              this.previewTotal
+            ]
+          ]
+        },
+        {
+          sheetName: 'By branch & product',
+          title: 'Savings Interest Preview — Totals',
+          subtitle: stamp,
+          headers: [
+            'Branch',
+            'Product',
+            'Posting Date',
+            'Accounts',
+            'Interest So Far'
+          ],
+          widths: [
+            18,
+            22,
+            12,
+            10,
+            16
+          ],
+          rows: [
+            ...this.previewGroups.map((g) => [
+              g.officeName,
+              g.productName,
+              g.postingDate,
+              g.accounts,
+              g.interest
+            ]),
+            [
+              'TOTAL',
+              '',
+              '',
+              this.previewRows.length,
+              this.previewTotal
+            ]
+          ]
+        }
+      ],
+      `savings-interest-preview-${this.previewAsOf}`
+    );
  }

  private businessDateIso(): string {