/**
 * 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/.
 */

/**
 * Sample DEAF data — schema and totals match the actual CIBIL/RBI return template.
 * Bank/customer/officer/auditor names are dummy placeholders.
 *
 * Three RBI-prescribed reports:
 *   Form I       — Monthly Return of unclaimed deposits transferred to DEAF (filed online by 15th)
 *   Form II      — Same return submitted as original hardcopy
 *   Annex 4      — Refund Claim Form (when bank claims back from DEAF for paid-out customer refunds)
 */

export interface DeafFormRow {
  /** 1=Opening, 2=Wrongly reported earlier, 3=Transferred this month, 4=Claims settled, 5=Net, 6=Total at end */
  sl: number;
  particulars: string;
  /** (a) Interest Bearing Deposits */
  ibdAccounts: number;
  ibdAmount: number;
  /** (b) Non-Interest Bearing Deposits */
  nibdAccounts: number;
  nibdAmount: number;
  /** (c) Other Credits (Non-Interest bearing) */
  ocAccounts: number;
  ocAmount: number;
  /** (d) Total = (a) + (b) + (c) */
  totalAccounts: number;
  totalAmount: number;
}

export interface DeafForm {
  bankName: string;
  bankDeafCode: string;
  remittedThroughSponsor: 'Y' | 'N';
  sponsorBankName: string;
  monthYear: string;
  dateOfTransfer: string;
  rows: DeafFormRow[];
  /** Authorized officer + auditor (signature block) */
  officer: string;
  officerDesignation: string;
  auditor: string;
  auditorAddress: string;
}

export interface DeafClaim {
  slNo: number;
  ibdPrincipal: number;
  ibdInterest: number;
  ibdTotal: number;
  nibdAccounts: number;
  nibdAmount: number;
  ocAccounts: number;
  ocAmount: number;
  grandTotalAccounts: number;
  grandTotalAmount: number;
}

export interface DeafEligibleAccount {
  acNo: string;
  customerName: string;
  acType: 'SB' | 'CA' | 'FD' | 'RD' | 'BG' | 'DD' | 'PO';
  branch: string;
  openedDate: string;
  lastTxnDate: string;
  inactiveYears: number;
  /** IBD = Interest Bearing Deposit; NIBD = Non-Interest Bearing; OC = Other Credit */
  bucket: 'IBD' | 'NIBD' | 'OC';
  principal: number;
  interest: number;
  total: number;
  status: 'eligible-this-month' | 'transferred' | 'claim-pending' | 'refunded';
  transferredOn?: string;
}

/** Form I — Dec 2025 cycle */
export const FORM_I: DeafForm = {
  bankName: 'Bharat Urban Bank Ltd, Mumbai Main Branch',
  bankDeafCode: '1100',
  remittedThroughSponsor: 'Y',
  sponsorBankName: 'State Bank of India',
  monthYear: '12/2025',
  dateOfTransfer: '29-12-2025',
  officer: 'Anjali Mehta',
  officerDesignation: 'Chief Executive Officer',
  auditor: 'Karthik Kamath',
  auditorAddress: '12 MG Road, Worli, Mumbai 400018',
  rows: [
    {
      sl: 1,
      particulars: 'Opening balance of accounts transferred to the Fund at the beginning of the month',
      ibdAccounts: 1208,
      ibdAmount: 2571461.6,
      nibdAccounts: 138,
      nibdAmount: 177338.98,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 1346,
      totalAmount: 2748800.58
    },
    {
      sl: 2,
      particulars: 'Accounts if any wrongly reported in past and rectified during this month',
      ibdAccounts: 10,
      ibdAmount: 7582.7,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 10,
      totalAmount: 7582.7
    },
    {
      sl: 3,
      particulars:
        'Accounts transferred to the DEA Fund during this month (incl. inadvertently omitted in previous month)',
      ibdAccounts: 0,
      ibdAmount: 0,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 0,
      totalAmount: 0
    },
    {
      sl: 4,
      particulars: 'Claims settled and refund received from the DEA Fund during this month (only the principal)',
      ibdAccounts: 2,
      ibdAmount: 9177.0,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 2,
      totalAmount: 9177.0
    },
    {
      sl: 5,
      particulars: 'Net amount transferred to the Fund during the month (2 + 3 − 4)',
      ibdAccounts: 8,
      ibdAmount: -1594.3,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 8,
      totalAmount: -1594.3
    },
    {
      sl: 6,
      particulars: 'Total amount with the Fund at the end of the month (1 + 5)',
      ibdAccounts: 1216,
      ibdAmount: 2569867.3,
      nibdAccounts: 138,
      nibdAmount: 177338.98,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 1354,
      totalAmount: 2747206.28
    }
  ]
};

/** Form II — Jan 2026 (head office consolidated) */
export const FORM_II: DeafForm = {
  bankName: 'Bharat Urban Bank Ltd, Head Office',
  bankDeafCode: '1100',
  remittedThroughSponsor: 'Y',
  sponsorBankName: 'State Bank of India',
  monthYear: '01/2026',
  dateOfTransfer: '15-01-2026',
  officer: 'Anjali Mehta',
  officerDesignation: 'Chief Executive Officer',
  auditor: 'Karthik Kamath',
  auditorAddress: '12 MG Road, Worli, Mumbai 400018',
  rows: [
    {
      sl: 1,
      particulars: 'Opening balance at the beginning of the month',
      ibdAccounts: 699,
      ibdAmount: 2040493.18,
      nibdAccounts: 140,
      nibdAmount: 187649.0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 839,
      totalAmount: 2228142.18
    },
    {
      sl: 2,
      particulars: 'Accounts and amount inadvertently omitted in previous month return and transferred this month',
      ibdAccounts: 0,
      ibdAmount: 0,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 0,
      totalAmount: 0
    },
    {
      sl: 3,
      particulars: 'Accounts and amount due and transferred to the Fund during this month',
      ibdAccounts: 5,
      ibdAmount: 19956.75,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 5,
      totalAmount: 19956.75
    },
    {
      sl: 4,
      particulars: 'Accounts and amount claimed during the previous month and paid from the Fund during this month',
      ibdAccounts: 0,
      ibdAmount: 0,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 0,
      totalAmount: 0
    },
    {
      sl: 5,
      particulars: 'Total amount transferred less amount paid from the Fund during the month (2 + 3 − 4)',
      ibdAccounts: 5,
      ibdAmount: 19956.75,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 5,
      totalAmount: 19956.75
    },
    {
      sl: 6,
      particulars: 'Total amount with the Fund at the end of the month (1 + 5)',
      ibdAccounts: 704,
      ibdAmount: 2060449.93,
      nibdAccounts: 140,
      nibdAmount: 187649.0,
      ocAccounts: 0,
      ocAmount: 0,
      totalAccounts: 844,
      totalAmount: 2248098.93
    }
  ]
};

/** Annex 4 — Refund claim form (Jan 2026) */
export const REFUND_CLAIMS: {
  bankName: string;
  bankDeafCode: string;
  currentAcWithRbi: string;
  sponsorBank: string;
  month: string;
  year: string;
  firstSignatory: string;
  firstDesignation: string;
  secondSignatory: string;
  secondDesignation: string;
  auditor: string;
  rows: DeafClaim[];
} = {
  bankName: 'Bharat Urban Bank Ltd',
  bankDeafCode: '1100',
  currentAcWithRbi: '03010200099001',
  sponsorBank: 'State Bank of India',
  month: 'January',
  year: '2026',
  firstSignatory: 'Vikram Singh',
  firstDesignation: 'IT Manager',
  secondSignatory: 'Rohan Malhotra',
  secondDesignation: 'Clerk / Cashier',
  auditor: 'Karthik Kamath',
  rows: [
    {
      slNo: 4,
      ibdPrincipal: 5754.0,
      ibdInterest: 457,
      ibdTotal: 6211.0,
      nibdAccounts: 0,
      nibdAmount: 0,
      ocAccounts: 0,
      ocAmount: 0,
      grandTotalAccounts: 4,
      grandTotalAmount: 6211.0
    }
  ]
};

/** Eligible / transferred / claimed accounts list (dummy customers across multiple branches) */
export const ELIGIBLE_ACCOUNTS: DeafEligibleAccount[] = [
  {
    acNo: '110001301002013',
    customerName: 'RAVI KUMAR SHARMA',
    acType: 'SB',
    branch: 'Mumbai Main',
    openedDate: '12-04-2010',
    lastTxnDate: '15-03-2016',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 4250.0,
    interest: 312.5,
    total: 4562.5,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001301004221',
    customerName: 'PRIYA PATEL',
    acType: 'SB',
    branch: 'Pune FC Road',
    openedDate: '08-09-2009',
    lastTxnDate: '20-01-2016',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 1850.75,
    interest: 132.0,
    total: 1982.75,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001302001145',
    customerName: 'ARJUN DESHMUKH',
    acType: 'FD',
    branch: 'Nagpur Dharampeth',
    openedDate: '01-01-2011',
    lastTxnDate: '01-01-2016',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 25000.0,
    interest: 4180.0,
    total: 29180.0,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001301005612',
    customerName: 'VIKRAM REDDY',
    acType: 'SB',
    branch: 'Bengaluru Jayanagar',
    openedDate: '25-07-2008',
    lastTxnDate: '12-12-2015',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 8350.5,
    interest: 654.0,
    total: 9004.5,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001303002284',
    customerName: 'LAKSHMI IYER',
    acType: 'RD',
    branch: 'Bengaluru Indiranagar',
    openedDate: '15-06-2010',
    lastTxnDate: '15-06-2015',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 12500.0,
    interest: 1850.0,
    total: 14350.0,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001305000412',
    customerName: 'NIRAV SHAH',
    acType: 'DD',
    branch: 'Ahmedabad Satellite',
    openedDate: '03-10-2014',
    lastTxnDate: '03-10-2014',
    inactiveYears: 11,
    bucket: 'NIBD',
    principal: 3450.0,
    interest: 0,
    total: 3450.0,
    status: 'eligible-this-month'
  },
  {
    acNo: '110001301001780',
    customerName: 'KAVITA VERMA',
    acType: 'SB',
    branch: 'Lucknow Gomti Nagar',
    openedDate: '11-02-2008',
    lastTxnDate: '11-09-2014',
    inactiveYears: 11,
    bucket: 'IBD',
    principal: 6240.0,
    interest: 478.0,
    total: 6718.0,
    status: 'transferred',
    transferredOn: '15-12-2025'
  },
  {
    acNo: '110001302002091',
    customerName: 'KARTHIK SUBRAMANIAN',
    acType: 'FD',
    branch: 'Chennai Valasaravakkam',
    openedDate: '04-08-2009',
    lastTxnDate: '04-08-2014',
    inactiveYears: 11,
    bucket: 'IBD',
    principal: 18500.0,
    interest: 2725.0,
    total: 21225.0,
    status: 'transferred',
    transferredOn: '15-11-2025'
  },
  {
    acNo: '110001301008764',
    customerName: 'SAMEER KAPOOR',
    acType: 'SB',
    branch: 'Delhi Greater Kailash',
    openedDate: '17-05-2009',
    lastTxnDate: '17-05-2014',
    inactiveYears: 11,
    bucket: 'IBD',
    principal: 4587.0,
    interest: 290.0,
    total: 4877.0,
    status: 'transferred',
    transferredOn: '15-09-2024'
  },
  {
    acNo: '110001302003145',
    customerName: 'ABHISHEK BANERJEE',
    acType: 'FD',
    branch: 'Kolkata Salt Lake',
    openedDate: '22-03-2010',
    lastTxnDate: '22-03-2015',
    inactiveYears: 10,
    bucket: 'IBD',
    principal: 15000.0,
    interest: 2150.0,
    total: 17150.0,
    status: 'claim-pending'
  },
  {
    acNo: '110001301010224',
    customerName: 'GAURAV THAKUR',
    acType: 'SB',
    branch: 'Shimla Sector 4',
    openedDate: '08-12-2008',
    lastTxnDate: '08-06-2014',
    inactiveYears: 11,
    bucket: 'IBD',
    principal: 3275.0,
    interest: 195.0,
    total: 3470.0,
    status: 'claim-pending'
  },
  {
    acNo: '110001302004088',
    customerName: 'MANMOHAN SINGH GILL',
    acType: 'FD',
    branch: 'Amritsar Model Town',
    openedDate: '19-09-2009',
    lastTxnDate: '19-09-2014',
    inactiveYears: 11,
    bucket: 'IBD',
    principal: 8500.0,
    interest: 1124.0,
    total: 9624.0,
    status: 'refunded',
    transferredOn: '15-04-2024'
  }
];