/**
 * Copyright since 2025 Mifos Initiative
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

import { Component, inject } from '@angular/core';
import { CommonModule, DecimalPipe } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { MAT_DIALOG_DATA, MatDialogRef, MatDialogModule } from '@angular/material/dialog';
import { MatButtonModule } from '@angular/material/button';
import { MatTooltipModule } from '@angular/material/tooltip';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';

export type CimsFormCode = 'OSS-2' | 'PSA' | 'RAL' | 'RCP-UCB' | 'OSS-4' | 'OSS-5' | 'OSS-6' | 'OSS-7';

export interface CimsXbrlDialogData {
  initialForm?: CimsFormCode;
}

interface CimsField {
  ref: string;
  label: string;
  section: string;
  value: number | string;
  unit?: 'INR-Lakh' | 'INR-Cr' | 'Pure' | 'Percent' | 'Number';
  type?: 'monetary' | 'numeric' | 'string' | 'percent';
}

interface CimsForm {
  code: CimsFormCode;
  name: string;
  fullName: string;
  description: string;
  cimsCode: string;
  taxonomy: string;
  periodicity: 'Daily' | 'Monthly' | 'Quarterly' | 'Half-Yearly' | 'Annual';
  lastFiled: string;
  nextDue: string;
  fields: CimsField[];
}

@Component({
  selector: 'mifosx-cims-xbrl-dialog',
  standalone: true,
  templateUrl: './cims-xbrl-dialog.component.html',
  styleUrls: ['./cims-xbrl-dialog.component.scss'],
  imports: [
    CommonModule,
    DecimalPipe,
    FormsModule,
    MatDialogModule,
    MatButtonModule,
    MatTooltipModule,
    FaIconComponent
  ]
})
export class CimsXbrlDialogComponent {
  private dialogRef = inject(MatDialogRef<CimsXbrlDialogComponent>);

  activeForm: CimsFormCode;
  activeTab: 'filing' | 'data' | 'preview' = 'filing';

  bank = {
    name: 'CBSNexora Bank Ltd',
    branch: 'Head Office',
    bsrCode: 'CBSN0000123',
    ifsc: 'CBSN0000123',
    legalEntityId: 'CBSN-LEI-2025',
    pan: 'AAACB1234L',
    asOnDate: '31-03-2026',
    quarter: 'Q4 FY 2025-26',
    fiscalYear: '2025-26',
    principalOfficer: 'Karthik Kamath',
    poDesignation: 'Chief Compliance Officer',
    poEmail: 'compliance@cbsnexorabank.in',
    poMobile: '+91-9988002211',
    cimsUserId: 'CBSN_CIMS_001',
    cimsPortal: 'https://cims.rbi.org.in/'
  };

  forms: Record<CimsFormCode, CimsForm> = {
    'OSS-2': {
      code: 'OSS-2',
      name: 'OSS-2',
      fullName: 'Off-site Surveillance — Statement of Asset Quality &amp; Capital Adequacy',
      description: 'Quarterly return on asset classification, NPA, capital adequacy and profitability indicators.',
      cimsCode: 'CIMS_OSS_002',
      taxonomy: 'rbi-cims-oss-2024-04-01',
      periodicity: 'Quarterly',
      lastFiled: '15-01-2026',
      nextDue: '15-04-2026',
      fields: [
        {
          ref: 'oss2:CapAdq.CRAR',
          section: 'Capital Adequacy',
          label: 'CRAR (Total)',
          value: 21.82,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:CapAdq.Tier1',
          section: 'Capital Adequacy',
          label: 'Tier-I CRAR',
          value: 20.51,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:CapAdq.Tier2',
          section: 'Capital Adequacy',
          label: 'Tier-II CRAR',
          value: 1.31,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Asset.Total',
          section: 'Asset Classification',
          label: 'Total Advances (₹ Lakh)',
          value: 4112.04,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.Standard',
          section: 'Asset Classification',
          label: 'Standard Assets (₹ Lakh)',
          value: 3845.88,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.SubStd',
          section: 'Asset Classification',
          label: 'Sub-Standard (₹ Lakh)',
          value: 102.41,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.Doubtful',
          section: 'Asset Classification',
          label: 'Doubtful (₹ Lakh)',
          value: 163.75,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.Loss',
          section: 'Asset Classification',
          label: 'Loss (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.GNPA',
          section: 'NPA Position',
          label: 'Gross NPA (₹ Lakh)',
          value: 266.16,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.NNPA',
          section: 'NPA Position',
          label: 'Net NPA (₹ Lakh)',
          value: -96.33,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss2:Asset.GNPAPct',
          section: 'NPA Position',
          label: 'GNPA %',
          value: 6.47,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Asset.NNPAPct',
          section: 'NPA Position',
          label: 'NNPA %',
          value: -2.6,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Asset.PCR',
          section: 'NPA Position',
          label: 'Provision Coverage Ratio',
          value: 136.24,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Profit.NIM',
          section: 'Profitability',
          label: 'Net Interest Margin',
          value: 0.51,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Profit.ROA',
          section: 'Profitability',
          label: 'Return on Assets',
          value: 0.67,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Profit.ROE',
          section: 'Profitability',
          label: 'Return on Equity',
          value: 5.38,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Liq.CRR',
          section: 'Liquidity',
          label: 'CRR Maintained',
          value: 4.52,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss2:Liq.SLR',
          section: 'Liquidity',
          label: 'SLR Maintained',
          value: 19.24,
          unit: 'Percent',
          type: 'percent'
        }
      ]
    },
    PSA: {
      code: 'PSA',
      name: 'PSA',
      fullName: 'Priority Sector Advances — Annual Achievement Statement',
      description: 'Annual return on priority sector lending, sub-targets and weaker section coverage.',
      cimsCode: 'CIMS_PSA_001',
      taxonomy: 'rbi-cims-psa-2024-04-01',
      periodicity: 'Annual',
      lastFiled: '30-04-2025',
      nextDue: '30-04-2026',
      fields: [
        {
          ref: 'psa:Reference.ANBC',
          section: 'Reference',
          label: 'Adjusted Net Bank Credit (₹ Lakh)',
          value: 3274.83,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:Reference.OBE',
          section: 'Reference',
          label: 'Credit Equivalent of OBE (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.Total',
          section: 'PSL Achievement',
          label: 'Total PSL Outstanding (₹ Lakh)',
          value: 2485.67,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.TotalPct',
          section: 'PSL Achievement',
          label: 'Total PSL % of ANBC',
          value: 75.9,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'psa:PSL.Agri',
          section: 'Sub-targets',
          label: 'Agriculture (₹ Lakh)',
          value: 39.0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.AgriPct',
          section: 'Sub-targets',
          label: 'Agriculture % of ANBC',
          value: 1.19,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'psa:PSL.SMF',
          section: 'Sub-targets',
          label: 'Small &amp; Marginal Farmers (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.SMFPct',
          section: 'Sub-targets',
          label: 'SMF % of ANBC',
          value: 0,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'psa:PSL.MicroEnt',
          section: 'Sub-targets',
          label: 'MSME Enterprises (₹ Lakh)',
          value: 2313.83,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.MicroPct',
          section: 'Sub-targets',
          label: 'MSME Enterprises % of ANBC',
          value: 70.65,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'psa:PSL.Weaker',
          section: 'Sub-targets',
          label: 'Weaker Sections (₹ Lakh)',
          value: 990.28,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.WeakerPct',
          section: 'Sub-targets',
          label: 'Weaker Sections % of ANBC',
          value: 30.22,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'psa:PSL.Housing',
          section: 'Other Categories',
          label: 'Housing (₹ Lakh)',
          value: 115.12,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.Education',
          section: 'Other Categories',
          label: 'Education (₹ Lakh)',
          value: 17.32,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.Export',
          section: 'Other Categories',
          label: 'Export Credit (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'psa:PSL.RenEnergy',
          section: 'Other Categories',
          label: 'Renewable Energy (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        }
      ]
    },
    RAL: {
      code: 'RAL',
      name: 'RAL',
      fullName: 'Return on Assets &amp; Liabilities (Half-Yearly)',
      description: 'Half-yearly statement of bank-wide assets and liabilities composition for cooperative banks.',
      cimsCode: 'CIMS_RAL_004',
      taxonomy: 'rbi-cims-ral-2024-04-01',
      periodicity: 'Half-Yearly',
      lastFiled: '30-10-2025',
      nextDue: '30-04-2026',
      fields: [
        {
          ref: 'ral:Liab.Capital',
          section: 'Liabilities',
          label: 'Capital (₹ Lakh)',
          value: 272.78,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.Reserves',
          section: 'Liabilities',
          label: 'Reserves, Surplus &amp; Profit (₹ Lakh)',
          value: 712.6,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.DepDemand',
          section: 'Liabilities',
          label: 'Demand Deposits (₹ Lakh)',
          value: 195.92,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.DepSavings',
          section: 'Liabilities',
          label: 'Savings Deposits (₹ Lakh)',
          value: 2081.16,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.DepTerm',
          section: 'Liabilities',
          label: 'Term Deposits (₹ Lakh)',
          value: 4066.01,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.Borrow',
          section: 'Liabilities',
          label: 'Borrowings (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Liab.Other',
          section: 'Liabilities',
          label: 'Other Liabilities &amp; Provisions (₹ Lakh)',
          value: 780.73,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Cash',
          section: 'Assets',
          label: 'Cash on Hand (₹ Lakh)',
          value: 99.96,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.RBI',
          section: 'Assets',
          label: 'Balances with RBI (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Banks',
          section: 'Assets',
          label: 'Balances with Banks &amp; Other Institutions (₹ Lakh)',
          value: 1349.53,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Money',
          section: 'Assets',
          label: 'Money at Call &amp; Short Notice (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Invest',
          section: 'Assets',
          label: 'Investments (₹ Lakh)',
          value: 2342.97,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Adv',
          section: 'Assets',
          label: 'Advances (₹ Lakh)',
          value: 3912.88,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Fixed',
          section: 'Assets',
          label: 'Fixed Assets (₹ Lakh)',
          value: 49.48,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:Asset.Other',
          section: 'Assets',
          label: 'Other Assets &amp; Interest Receivable (₹ Lakh)',
          value: 354.38,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:OBE.Guar',
          section: 'Off-Balance Sheet',
          label: 'Contingent Liabilities (₹ Lakh)',
          value: 26.38,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'ral:OBE.LC',
          section: 'Off-Balance Sheet',
          label: 'Letters of Credit (₹ Lakh)',
          value: 0,
          unit: 'INR-Lakh',
          type: 'monetary'
        }
      ]
    },
    'RCP-UCB': {
      code: 'RCP-UCB',
      name: 'RCP (UCB)',
      fullName: 'Return on Cash Position — Urban Cooperative Banks',
      description: 'Fortnightly statement of CRR/SLR maintenance, NDTL composition and reserve position.',
      cimsCode: 'CIMS_RCP_UCB_007',
      taxonomy: 'rbi-cims-rcp-ucb-2024-04-01',
      periodicity: 'Monthly',
      lastFiled: '14-04-2026',
      nextDue: '28-04-2026',
      fields: [
        {
          ref: 'rcp:Liab.DemandDep',
          section: 'NDTL Composition',
          label: 'Demand Liabilities (₹ Lakh)',
          value: 84200,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:Liab.TimeDep',
          section: 'NDTL Composition',
          label: 'Time Liabilities (₹ Lakh)',
          value: 681400,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:Liab.NDTL',
          section: 'NDTL Composition',
          label: 'Net Demand &amp; Time Liabilities (NDTL)',
          value: 740000,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:CRR.Required',
          section: 'CRR Maintenance',
          label: 'CRR Required (4.5%)',
          value: 33300,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:CRR.Maintained',
          section: 'CRR Maintenance',
          label: 'CRR Maintained (avg)',
          value: 33448,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:CRR.MaintainedPct',
          section: 'CRR Maintenance',
          label: 'CRR % Maintained',
          value: 4.52,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'rcp:CRR.Surplus',
          section: 'CRR Maintenance',
          label: 'CRR Surplus / Shortfall (₹ Lakh)',
          value: 148,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:SLR.Required',
          section: 'SLR Maintenance',
          label: 'SLR Required (18%)',
          value: 133200,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:SLR.Maintained',
          section: 'SLR Maintenance',
          label: 'SLR Maintained (avg)',
          value: 142376,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:SLR.MaintainedPct',
          section: 'SLR Maintenance',
          label: 'SLR % Maintained',
          value: 19.24,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'rcp:SLR.Surplus',
          section: 'SLR Maintenance',
          label: 'SLR Surplus / Shortfall (₹ Lakh)',
          value: 9176,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:Cash.OnHand',
          section: 'Cash Position',
          label: 'Cash on Hand (₹ Lakh)',
          value: 8420,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:Cash.AtRBI',
          section: 'Cash Position',
          label: 'Cash at RBI (₹ Lakh)',
          value: 33448,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'rcp:Cash.AtBanks',
          section: 'Cash Position',
          label: 'Cash at other Banks (₹ Lakh)',
          value: 24800,
          unit: 'INR-Lakh',
          type: 'monetary'
        }
      ]
    },
    'OSS-4': {
      code: 'OSS-4',
      name: 'OSS-4',
      fullName: 'Connected Lending &amp; Large Exposure Statement',
      description:
        'Quarterly statement of loans to directors/relatives, senior officers, and exposures exceeding prudential thresholds. Illustrative figures — no source filing was provided for this return; values are modelled on this bank\'s own capital/advances scale for consistency.',
      cimsCode: 'CIMS_OSS_004',
      taxonomy: 'rbi-cims-oss4-2024-04-01',
      periodicity: 'Quarterly',
      lastFiled: '15-01-2026',
      nextDue: '15-04-2026',
      fields: [
        {
          ref: 'oss4:Connected.Directors',
          section: 'Connected Lending',
          label: 'Loans to Directors &amp; Relatives (₹ Lakh)',
          value: 42.5,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss4:Connected.SrOfficers',
          section: 'Connected Lending',
          label: 'Loans to Senior Officers (₹ Lakh)',
          value: 18.75,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss4:Connected.Accounts',
          section: 'Connected Lending',
          label: 'Number of Connected Lending Accounts',
          value: 12,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss4:LargeExp.Amount',
          section: 'Large Exposures',
          label: 'Exposures &gt; 10% of Capital Funds (₹ Lakh)',
          value: 285.0,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss4:LargeExp.Pct',
          section: 'Large Exposures',
          label: 'Large Exposures as % of Capital Funds',
          value: 30.58,
          unit: 'Percent',
          type: 'percent'
        },
        {
          ref: 'oss4:LargeExp.SingleBreach',
          section: 'Large Exposures',
          label: 'Single Borrower Limit Breaches',
          value: 0,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss4:LargeExp.GroupBreach',
          section: 'Large Exposures',
          label: 'Group Borrower Limit Breaches',
          value: 0,
          unit: 'Number',
          type: 'numeric'
        }
      ]
    },
    'OSS-5': {
      code: 'OSS-5',
      name: 'OSS-5',
      fullName: 'Institutional &amp; Membership Profile',
      description:
        'Annual statement of branch network, staff strength, membership and depositor/borrower base. Illustrative figures — no source filing was provided for this return; membership share capital is aligned to this bank\'s real paid-up capital figure.',
      cimsCode: 'CIMS_OSS_005',
      taxonomy: 'rbi-cims-oss5-2024-04-01',
      periodicity: 'Annual',
      lastFiled: '30-04-2025',
      nextDue: '30-04-2026',
      fields: [
        {
          ref: 'oss5:Profile.Branches',
          section: 'Network',
          label: 'Number of Branches',
          value: 8,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss5:Profile.Employees',
          section: 'Network',
          label: 'Number of Employees',
          value: 64,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss5:Profile.AreaOfOperation',
          section: 'Network',
          label: 'Area of Operation',
          value: 'Single District',
          type: 'string'
        },
        {
          ref: 'oss5:Profile.Members',
          section: 'Membership',
          label: 'Number of Regular Members',
          value: 18450,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss5:Profile.ShareCapital',
          section: 'Membership',
          label: 'Membership Share Capital (₹ Lakh)',
          value: 272.78,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss5:Profile.Depositors',
          section: 'Customer Base',
          label: 'Number of Depositors',
          value: 42180,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss5:Profile.Borrowers',
          section: 'Customer Base',
          label: 'Number of Borrowers',
          value: 3860,
          unit: 'Number',
          type: 'numeric'
        }
      ]
    },
    'OSS-6': {
      code: 'OSS-6',
      name: 'OSS-6',
      fullName: 'Structural Liquidity &amp; Interest Rate Sensitivity Statement',
      description:
        'Fortnightly maturity-bucket gap analysis of rate-sensitive assets and liabilities. Illustrative figures — no source filing was provided for this return.',
      cimsCode: 'CIMS_OSS_006',
      taxonomy: 'rbi-cims-oss6-2024-04-01',
      periodicity: 'Monthly',
      lastFiled: '14-04-2026',
      nextDue: '28-04-2026',
      fields: [
        {
          ref: 'oss6:Gap.1to14Days',
          section: 'Maturity Gap (₹ Lakh)',
          label: '1-14 Days',
          value: -45.2,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.15to28Days',
          section: 'Maturity Gap (₹ Lakh)',
          label: '15-28 Days',
          value: -12.8,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.29DaysTo3M',
          section: 'Maturity Gap (₹ Lakh)',
          label: '29 Days to 3 Months',
          value: 88.4,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.Over3To6M',
          section: 'Maturity Gap (₹ Lakh)',
          label: 'Over 3 Months to 6 Months',
          value: 62.15,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.Over6MTo1Y',
          section: 'Maturity Gap (₹ Lakh)',
          label: 'Over 6 Months to 1 Year',
          value: -28.9,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.Over1To3Y',
          section: 'Maturity Gap (₹ Lakh)',
          label: 'Over 1 Year to 3 Years',
          value: 210.6,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.Over3To5Y',
          section: 'Maturity Gap (₹ Lakh)',
          label: 'Over 3 Years to 5 Years',
          value: 95.3,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Gap.Over5Y',
          section: 'Maturity Gap (₹ Lakh)',
          label: 'Over 5 Years',
          value: -18.75,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss6:Liq.CumNegGapPct',
          section: 'Liquidity Ratios',
          label: 'Cumulative Negative Gap (14-Day) as % of Cumulative Outflows',
          value: 4.85,
          unit: 'Percent',
          type: 'percent'
        }
      ]
    },
    'OSS-7': {
      code: 'OSS-7',
      name: 'OSS-7',
      fullName: 'Statement of Frauds &amp; Customer Complaints',
      description:
        'Quarterly statement of frauds reported and customer-complaint disposal. Illustrative figures — no source filing was provided for this return.',
      cimsCode: 'CIMS_OSS_007',
      taxonomy: 'rbi-cims-oss7-2024-04-01',
      periodicity: 'Quarterly',
      lastFiled: '15-01-2026',
      nextDue: '15-04-2026',
      fields: [
        {
          ref: 'oss7:Fraud.Count',
          section: 'Frauds',
          label: 'Number of Frauds Reported',
          value: 1,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss7:Fraud.Amount',
          section: 'Frauds',
          label: 'Amount Involved in Frauds (₹ Lakh)',
          value: 2.4,
          unit: 'INR-Lakh',
          type: 'monetary'
        },
        {
          ref: 'oss7:Complaints.Received',
          section: 'Customer Complaints',
          label: 'Complaints Received (Quarter)',
          value: 14,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss7:Complaints.Resolved',
          section: 'Customer Complaints',
          label: 'Complaints Resolved',
          value: 12,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss7:Complaints.Pending',
          section: 'Customer Complaints',
          label: 'Complaints Pending',
          value: 2,
          unit: 'Number',
          type: 'numeric'
        },
        {
          ref: 'oss7:Complaints.PendingOver30',
          section: 'Customer Complaints',
          label: 'Complaints Pending &gt; 30 Days',
          value: 0,
          unit: 'Number',
          type: 'numeric'
        }
      ]
    }
  };

  formCodes: CimsFormCode[] = [
    'OSS-2',
    'PSA',
    'RAL',
    'RCP-UCB',
    'OSS-4',
    'OSS-5',
    'OSS-6',
    'OSS-7'
  ];

  data = inject<CimsXbrlDialogData | null>(MAT_DIALOG_DATA, { optional: true });

  constructor() {
    this.activeForm = this.data?.initialForm ?? 'OSS-2';
  }

  get currentForm(): CimsForm {
    return this.forms[this.activeForm];
  }

  get sections(): string[] {
    const s: string[] = [];
    for (const f of this.currentForm.fields) {
      if (!s.includes(f.section)) s.push(f.section);
    }
    return s;
  }
  fieldsBySection(section: string): CimsField[] {
    return this.currentForm.fields.filter((f) => f.section === section);
  }

  setForm(code: CimsFormCode): void {
    this.activeForm = code;
    this.activeTab = 'filing';
  }
  setTab(tab: 'filing' | 'data' | 'preview'): void {
    this.activeTab = tab;
  }
  close(): void {
    this.dialogRef.close();
  }

  /** Format a number for XBRL output (no commas, 2 dp for monetary/percent) */
  private fmtXbrl(f: CimsField): string {
    if (typeof f.value === 'string') return f.value;
    if (f.type === 'monetary' || f.type === 'percent') return f.value.toFixed(2);
    return f.value.toString();
  }

  /** Build XBRL XML document for a form (representative; real CIMS taxonomy differs) */
  generateXbrlXml(): string {
    const f = this.currentForm;
    const period = `${this.bank.fiscalYear} (${this.bank.quarter})`;
    const ctxId = `ctx_${f.code.replace('-', '_')}`;
    const startDate = '2026-01-01';
    const endDate = '2026-03-31';
    const lines: string[] = [];
    lines.push('<?xml version="1.0" encoding="UTF-8"?>');
    lines.push('<xbrl');
    lines.push('  xmlns="http://www.xbrl.org/2003/instance"');
    lines.push('  xmlns:link="http://www.xbrl.org/2003/linkbase"');
    lines.push('  xmlns:xbrli="http://www.xbrl.org/2003/instance"');
    lines.push('  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"');
    lines.push('  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"');
    lines.push(`  xmlns:${f.code.replace('-', '').toLowerCase()}="${f.taxonomy}">`);
    lines.push(`  <link:schemaRef xlink:type="simple" xlink:href="${f.taxonomy}.xsd"/>`);
    lines.push(`  <!-- Period: ${period} -->`);
    lines.push(`  <context id="${ctxId}">`);
    lines.push('    <entity>');
    lines.push(`      <identifier scheme="http://www.rbi.org.in/cims">${this.bank.legalEntityId}</identifier>`);
    lines.push('    </entity>');
    lines.push('    <period>');
    lines.push(`      <startDate>${startDate}</startDate>`);
    lines.push(`      <endDate>${endDate}</endDate>`);
    lines.push('    </period>');
    lines.push('  </context>');
    lines.push('  <unit id="INR_Lakh"><measure>iso4217:INR</measure></unit>');
    lines.push('  <unit id="Pure"><measure>xbrli:pure</measure></unit>');
    lines.push('  <!-- Filing -->');
    lines.push(`  <cims:bankName contextRef="${ctxId}">${this.bank.name}</cims:bankName>`);
    lines.push(`  <cims:bsrCode contextRef="${ctxId}">${this.bank.bsrCode}</cims:bsrCode>`);
    lines.push(`  <cims:cimsFormCode contextRef="${ctxId}">${f.cimsCode}</cims:cimsFormCode>`);
    lines.push('  <!-- Facts -->');
    for (const fld of f.fields) {
      const unitRef = fld.type === 'monetary' ? 'INR_Lakh' : 'Pure';
      const decimals = fld.type === 'monetary' || fld.type === 'percent' ? '2' : '0';
      lines.push(
        `  <${fld.ref} contextRef="${ctxId}" unitRef="${unitRef}" decimals="${decimals}">${this.fmtXbrl(
          fld
        )}</${fld.ref}>`
      );
    }
    lines.push('</xbrl>');
    return lines.join('\n');
  }

  /** Validation summary — counts fields, flags any zero/missing */
  get validation(): { total: number; populated: number; empty: number; status: 'valid' | 'warning' } {
    const fields = this.currentForm.fields;
    const populated = fields.filter((f) => f.value !== '' && f.value !== 0).length;
    const empty = fields.length - populated;
    return {
      total: fields.length,
      populated,
      empty,
      status: empty === 0 ? 'valid' : 'warning'
    };
  }

  // -------------------- Exports --------------------
  exportXbrl(): void {
    const xml = this.generateXbrlXml();
    this.saveBlob(xml, `${this.currentForm.cimsCode}-${this.dateTag()}.xml`, 'application/xml');
  }
  copyXbrl(): void {
    const xml = this.generateXbrlXml();
    if (navigator.clipboard) navigator.clipboard.writeText(xml);
  }
  exportExcel(): void {
    const f = this.currentForm;
    const rows: string[][] = [];
    rows.push([
      this.bank.name,
      this.bank.branch
    ]);
    rows.push([
      f.fullName,
      `As On ${this.bank.asOnDate}`
    ]);
    rows.push([
      `CIMS Code: ${f.cimsCode}`,
      `Taxonomy: ${f.taxonomy}`
    ]);
    rows.push([
      `Periodicity: ${f.periodicity}`,
      `Quarter: ${this.bank.quarter}`
    ]);
    rows.push([
      `Principal Officer: ${this.bank.principalOfficer}`,
      `Email: ${this.bank.poEmail}`
    ]);
    rows.push([]);
    rows.push([
      'Section',
      'Element Ref',
      'Label',
      'Value',
      'Unit'
    ]);
    for (const fld of f.fields) {
      rows.push([
        fld.section,
        fld.ref,
        fld.label.replace(/&amp;/g, '&'),
        this.fmtXbrl(fld),
        fld.unit ?? ''
      ]);
    }
    rows.push([]);
    rows.push([
      'Certified by',
      this.bank.principalOfficer + ' — ' + this.bank.poDesignation
    ]);
    this.saveTsv(rows, `${f.cimsCode}-${this.dateTag()}.xls`);
  }

  // ---- helpers ----
  private dateTag(): string {
    const d = new Date();
    return `${String(d.getDate()).padStart(2, '0')}${String(d.getMonth() + 1).padStart(2, '0')}${d.getFullYear()}`;
  }
  private saveTsv(rows: string[][], filename: string): void {
    const tsv = rows.map((r) => r.map((v) => (v || '').replace(/\t/g, ' ')).join('\t')).join('\n');
    this.saveBlob(tsv, filename, 'application/vnd.ms-excel');
  }
  private saveBlob(content: string, filename: string, mime: string): void {
    const blob = new Blob([content], { type: `${mime};charset=utf-8` });
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = filename;
    a.click();
    URL.revokeObjectURL(url);
  }
}