/**
 * 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/.
 */

/** Angular Imports */
import { Component, OnInit, inject } from '@angular/core';
import { ActivatedRoute, Router, RouterLinkActive, RouterLink, RouterOutlet } from '@angular/router';
import { MatDialog } from '@angular/material/dialog';

import { DeleteDialogComponent } from 'app/shared/delete-dialog/delete-dialog.component';
import { ConfirmationDialogComponent } from 'app/shared/confirmation-dialog/confirmation-dialog.component';
import { CalculateInterestDialogComponent } from './custom-dialogs/calculate-interest-dialog/calculate-interest-dialog.component';
import { PostInterestDialogComponent } from './custom-dialogs/post-interest-dialog/post-interest-dialog.component';
import { ToggleWithholdTaxDialogComponent } from './custom-dialogs/toggle-withhold-tax-dialog/toggle-withhold-tax-dialog.component';
import { PaymentDialogComponent } from './custom-dialogs/payment-dialog/payment-dialog.component';
import { PrematureCloseDialogComponent } from './custom-dialogs/premature-close-dialog/premature-close-dialog.component';
import { DepositCertificateDialogComponent } from 'app/shared/deposit-certificate-dialog/deposit-certificate-dialog.component';

/** Custom Button Config. */
import { FixedDepositsButtonsConfiguration } from './fixed-deposits-buttons.config';

/** Custom Services */
import { FixedDepositsService } from '../fixed-deposits.service';
import { SavingsService } from 'app/savings/savings.service';
import { AccountsService } from 'app/accounts/accounts.service';
import { Currency } from 'app/shared/models/general.model';
import { SettingsService } from 'app/settings/settings.service';
import { Dates } from 'app/core/utils/dates';
import { AlertService } from 'app/core/alert/alert.service';
import { AuthenticationService } from '../../../core/authentication/authentication.service';
import { MatTooltip } from '@angular/material/tooltip';
import { NgClass, CurrencyPipe } from '@angular/common';
import { AccountNumberComponent } from '../../../shared/account-number/account-number.component';
import { LongTextComponent } from '../../../shared/long-text/long-text.component';
import { MatIconButton } from '@angular/material/button';
import { MatMenuTrigger, MatMenu, MatMenuItem } from '@angular/material/menu';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { MatTabNav, MatTabLink, MatTabNavPanel } from '@angular/material/tabs';
import { StatusLookupPipe } from '../../../pipes/status-lookup.pipe';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
import { DormancyAlertPanelComponent } from 'app/shared/dormancy-alert-panel/dormancy-alert-panel.component';

/**
 * Fixed Deposits Account View Component
 */
@Component({
  selector: 'mifosx-fixed-deposit-account-view',
  templateUrl: './fixed-deposit-account-view.component.html',
  styleUrls: ['./fixed-deposit-account-view.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    MatTooltip,
    NgClass,
    LongTextComponent,
    AccountNumberComponent,
    MatIconButton,
    MatMenuTrigger,
    FaIconComponent,
    MatMenu,
    MatMenuItem,
    MatTabNav,
    MatTabLink,
    RouterLinkActive,
    MatTabNavPanel,
    RouterOutlet,
    CurrencyPipe,
    StatusLookupPipe,
    DormancyAlertPanelComponent
  ]
})
export class FixedDepositAccountViewComponent implements OnInit {
  private route = inject(ActivatedRoute);
  private router = inject(Router);
  private alertService = inject(AlertService);
  private fixedDepositsService = inject(FixedDepositsService);
  private savingsService = inject(SavingsService);
  private accountsService = inject(AccountsService);
  private settingsService = inject(SettingsService);
  private dateUtils = inject(Dates);
  private authenticationService = inject(AuthenticationService);
  dialog = inject(MatDialog);

  /** Fixed Deposits Account Data */
  fixedDepositsAccountData: any;
  /** Savings Data Tables */
  savingsDatatables: any;
  /** Button Configurations */
  buttonConfig: FixedDepositsButtonsConfiguration;
  /** Entity Type */
  entityType: string;
  currency: Currency;
  showTransactions = false;

  private readonly ACTION_KIND: Record<string, 'transact' | 'block' | 'interest' | 'admin' | 'danger'> = {
    Deposit: 'transact',
    Withdrawal: 'transact',
    'Transfer Funds': 'transact',
    'Calculate Interest': 'interest',
    'Post Interest': 'interest',
    'Enable Withhold Tax': 'interest',
    'Disable Withhold Tax': 'interest',
    Payment: 'transact',
    'Premature Close': 'danger',
    'Undo Activation': 'admin',
    Close: 'danger',
    'Modify Application': 'admin',
    Approve: 'admin',
    'Undo Approval': 'admin',
    Activate: 'admin',
    'Add Charge': 'admin',
    'Apply Annual Fees': 'admin',
    Reject: 'danger',
    'Withdrawn by Client': 'danger',
    Delete: 'danger',
    Terminate: 'danger'
  };

  private readonly ACTION_ICON: Record<string, string> = {
    Deposit: 'arrow-down',
    Withdrawal: 'arrow-up',
    'Transfer Funds': 'exchange-alt',
    'Calculate Interest': 'calculator',
    'Post Interest': 'percentage',
    'Enable Withhold Tax': 'percentage',
    'Disable Withhold Tax': 'percentage',
    Payment: 'sync-alt',
    'Premature Close': 'times-circle',
    'Undo Activation': 'undo',
    Close: 'times-circle',
    'Modify Application': 'edit',
    Approve: 'check-circle',
    'Undo Approval': 'undo',
    Activate: 'check',
    'Add Charge': 'plus-circle',
    'Apply Annual Fees': 'receipt',
    Reject: 'ban',
    'Withdrawn by Client': 'user-slash',
    Delete: 'trash',
    Terminate: 'times-circle'
  };

  kindOf(name: string): 'transact' | 'block' | 'interest' | 'admin' | 'danger' {
    return this.ACTION_KIND[name] ?? 'admin';
  }

  iconOf(name: string, fallback?: string): string {
    return this.ACTION_ICON[name] ?? fallback ?? 'circle';
  }

  hasKind(kind: 'transact' | 'block' | 'interest' | 'admin' | 'danger'): boolean {
    const all = [
      ...(this.buttonConfig?.singleButtons ?? []),
      ...(this.buttonConfig?.options ?? [])
    ];
    return all.some((item) => this.kindOf(item.name) === kind);
  }

  /**
   * Fetches fixed deposits account data from `resolve`
   * @param {ActivatedRoute} route Activated Route
   * @param {Router} router Router
   * @param {FixedDepositsService} fixedDepositsService Fixed Deposits Service
   * @param {SavingsService} savingsService Savings Service
   * @param {MatDialog} dialog Mat Dialog
   */
  constructor() {
    this.route.data.subscribe((data: { fixedDepositsAccountData: any; savingsDatatables: any }) => {
      this.fixedDepositsAccountData = data.fixedDepositsAccountData;
      this.savingsDatatables = data.savingsDatatables;
      this.currency = this.fixedDepositsAccountData.currency;
      const status: any = data.fixedDepositsAccountData.status;
      this.showTransactions = status.id >= 300;
    });
    if (this.router.url.includes('clients')) {
      this.entityType = 'Client';
    } else if (this.router.url.includes('groups')) {
      this.entityType = 'Group';
    } else if (this.router.url.includes('centers')) {
      this.entityType = 'Center';
    }
  }

  ngOnInit() {
    this.setConditionalButtons();
  }

  /**
   * Adds options to button config. conditionaly.
   */
  setConditionalButtons() {
    const status = this.fixedDepositsAccountData.status.value;
    this.buttonConfig = new FixedDepositsButtonsConfiguration(status);
    if (this.fixedDepositsAccountData.taxGroup && status === 'Active') {
      if (this.fixedDepositsAccountData.withHoldTax) {
        this.buttonConfig.addOption({
          name: 'Disable Withhold Tax'
        });
      } else {
        this.buttonConfig.addOption({
          name: 'Enable Withhold Tax'
        });
      }
    }
    if (!this.authenticationService.hasCashierRole()) {
      this.buttonConfig.buttonsArray = this.buttonConfig.buttonsArray.filter(
        (btn) => btn.name !== 'Deposit' && btn.name !== 'Withdrawal'
      );
      this.buttonConfig.optionArray = this.buttonConfig.optionArray.filter(
        (opt) => opt.name !== 'Deposit' && opt.name !== 'Withdrawal'
      );
    }
  }

  /**
   * Refetches data fot the component
   * TODO: Replace by a custom reload component instead of hard-coded back-routing.
   */
  reload() {
    const clientId = this.fixedDepositsAccountData.clientId;
    const url: string = this.router.url;
    this.router
      .navigateByUrl(`/clients/${clientId}/fixed-deposits-accounts`, { skipLocationChange: true })
      .then(() => this.router.navigate([url]));
  }

  /**
   * Performs action button/option action.
   * @param {string} name action name.
   */
  doAction(name: string) {
    switch (name) {
      case 'Approve':
      case 'Reject':
      case 'Activate':
      case 'Close':
      case 'Undo Approval':
      case 'Undo Activation':
      case 'Add Charge':
      case 'Withdrawn by Client':
      case 'Deposit':
      case 'Withdrawal':
        this.router.navigate([`actions/${name}`], { relativeTo: this.route });
        break;
      case 'Modify Application':
        this.router.navigate(['edit'], { relativeTo: this.route });
        break;
      case 'Delete':
        this.deleteFixedDepositsAccount();
        break;
      case 'Calculate Interest':
        this.calculateInterest();
        break;
      case 'Post Interest':
        this.postInterest();
        break;
      case 'Enable Withhold Tax':
        this.enableWithHoldTax();
        break;
      case 'Disable Withhold Tax':
        this.disableWithHoldTax();
        break;
      case 'Terminate':
        this.terminateFixedDepositsAccount();
        break;
      case 'Payment':
        this.openPaymentDialog();
        break;
      case 'Premature Close':
        this.openPrematureCloseDialog();
        break;
    }
  }

  /**
   * Opens the Payment action -- only offered once the FD has actually Matured (see
   * FixedDepositsButtonsConfiguration), and the only place a Partial Reinvest can be done. Also the
   * exact same dialog the FD Dashboard's Renew action opens (see fd-dashboard.component.ts's
   * openRenewDialog), just without dashboardRenewal data, so its date picker stays visible.
   */
  private openPaymentDialog(): void {
    const paymentDialogRef = this.dialog.open(PaymentDialogComponent, {
      width: '720px',
      maxWidth: '95vw',
      data: {
        accountId: this.fixedDepositsAccountData.id,
        // The server bounds a partial reinvest by the balance AFTER it posts interest to the chosen date,
        // so the dialog needs both figures plus the maturity date to know which one that will be.
        accountBalance: this.fixedDepositsAccountData.summary?.accountBalance,
        maturityDate: this.fixedDepositsAccountData.maturityDate
      }
    });
    paymentDialogRef.afterClosed().subscribe((response: any) => {
      if (response?.confirm) {
        this.reload();
      }
    });
  }

  /**
   * The start date of the term currently running -- the last entry in renewalHistory, which is ordered
   * oldest-first (see RenewalHistoryTabComponent). Falls back to the account's own activation date for
   * an FD that has never been renewed (or whose renewalHistory hasn't loaded), which is the same date
   * in that case anyway.
   */
  private get currentTermStartDate(): any {
    const history = this.fixedDepositsAccountData?.renewalHistory;
    const latestTerm = Array.isArray(history) && history.length > 0 ? history[history.length - 1] : null;
    return latestTerm?.activatedondate ?? this.fixedDepositsAccountData?.timeline?.activatedOnDate;
  }

  /**
   * Opens the Premature Close action -- Active-only, no reinvest option, since the deposit hasn't
   * matured yet.
   */
  private openPrematureCloseDialog(): void {
    const prematureCloseDialogRef = this.dialog.open(PrematureCloseDialogComponent, {
      width: '720px',
      maxWidth: '95vw',
      data: {
        accountId: this.fixedDepositsAccountData.id,
        accountNo: this.fixedDepositsAccountData.fdAccountNumber || this.fixedDepositsAccountData.accountNo,
        // calculatePrematureAmount only ever returns the final maturityAmount, not how it was reached --
        // these come from the account's own data (already loaded for this page) so the dialog can show
        // the breakdown (deposit, contracted rate, penalty, interest earned) behind that one number.
        depositAmount: this.fixedDepositsAccountData.depositAmount,
        nominalAnnualInterestRate: this.fixedDepositsAccountData.nominalAnnualInterestRate,
        preClosurePenalApplicable: this.fixedDepositsAccountData.preClosurePenalApplicable,
        preClosurePenalInterest: this.fixedDepositsAccountData.preClosurePenalInterest,
        preClosurePenalInterestOnType: this.fixedDepositsAccountData.preClosurePenalInterestOnType,
        // Gate which RBI-mandated waiver reasons the dialog offers -- these two are the product's own
        // facility toggles (Deceased Settlement / No Penalty Nominee-Heir Closure), off by default, so
        // a product that never enabled them shouldn't offer a reason implying it did.
        deceasedSettlement: this.fixedDepositsAccountData.deceasedSettlement,
        noPenaltyNomineeHeirClosure: this.fixedDepositsAccountData.noPenaltyNomineeHeirClosure,
        // Tenure context (current term's start date, maturity date, current balance) so the dialog can
        // show how far into THIS term the account is and how much is actually sitting in it today, not
        // just the penalty-adjusted amount calculatePrematureAmount returns. Deliberately the current
        // term's own start (see currentTermStartDate), not the account's original activation -- a
        // renewed FD's interest/tenure runs from the renewal, and showing the original activation date
        // here would make an account renewed days ago look like it has been running for months.
        activatedOnDate: this.currentTermStartDate,
        maturityDate: this.fixedDepositsAccountData.maturityDate,
        currentBalance: this.fixedDepositsAccountData.summary?.accountBalance
      }
    });
    prematureCloseDialogRef.afterClosed().subscribe((response: any) => {
      if (response?.confirm) {
        this.reload();
      }
    });
  }

  /**
   * Deletes Fixed Deposits Account.
   */
  private deleteFixedDepositsAccount() {
    const deleteFixedDepositsAccountDialogRef = this.dialog.open(DeleteDialogComponent, {
      data: { deleteContext: `fixed deposit account with id: ${this.fixedDepositsAccountData.id}` }
    });
    deleteFixedDepositsAccountDialogRef.afterClosed().subscribe((response: any) => {
      if (response.delete) {
        this.fixedDepositsService.deleteFixedDepositsAccount(this.fixedDepositsAccountData.id).subscribe(() => {
          this.router.navigate(['../../'], { relativeTo: this.route });
        });
      }
    });
  }

  private terminateFixedDepositsAccount() {
    const terminateFixedDepositAccountDialogRef = this.dialog.open(ConfirmationDialogComponent, {
      data: {
        heading: 'Terminate Account',
        dialogContext: 'Are you sure you want to terminate this account?',
        type: 'Strong'
      }
    });
    terminateFixedDepositAccountDialogRef.afterClosed().subscribe((response: any) => {
      if (response && response.confirm) {
        const locale = this.settingsService.language.code;
        const dateFormat = this.settingsService.dateFormat;
        const terminatedOnDate = this.dateUtils.formatDate(new Date(), dateFormat);
        const data = {
          accountType: 'FD',
          terminatedOnDate,
          dateFormat,
          locale
        };
        this.accountsService.terminateAccount(this.fixedDepositsAccountData.id, data).subscribe(() => {
          this.reload();
        });
      }
    });
  }

  /**
   * Calculates fixed deposit account's interest
   */
  private calculateInterest() {
    const calculateInterestAccountDialogRef = this.dialog.open(CalculateInterestDialogComponent);
    calculateInterestAccountDialogRef.afterClosed().subscribe((response: any) => {
      if (response.confirm) {
        this.fixedDepositsService
          .executeFixedDepositsAccountCommand(this.fixedDepositsAccountData.id, 'calculateInterest', {})
          .subscribe(() => {
            this.reload();
          });
      }
    });
  }

  /**
   * Posts fixed deposit account's interest
   */
  private postInterest() {
    const postInterestAccountDialogRef = this.dialog.open(PostInterestDialogComponent);
    postInterestAccountDialogRef.afterClosed().subscribe((response: any) => {
      if (response.confirm) {
        this.fixedDepositsService
          .executeFixedDepositsAccountCommand(this.fixedDepositsAccountData.id, 'postInterest', {})
          .subscribe((commandResponse: any) => {
            // Parked in the Checker Inbox rather than executed (HTTP 200 with
            // rollbackTransaction: true), so the reload below shows no new interest posting.
            if (commandResponse?.rollbackTransaction) {
              this.alertService.alert({
                type: 'Success',
                message:
                  'Interest posting has been sent for checker approval. No interest is posted until a checker approves it.'
              });
            }
            this.reload();
          });
      }
    });
  }

  /**
   * Enables withhold tax for fixed deposits account.
   * Fixed deposits endpoint is not supported so using Savings endpoint.
   */
  private enableWithHoldTax() {
    const deleteSavingsAccountDialogRef = this.dialog.open(ToggleWithholdTaxDialogComponent, {
      data: { isEnable: true }
    });
    deleteSavingsAccountDialogRef.afterClosed().subscribe((response: any) => {
      if (response.confirm) {
        this.savingsService
          .executeSavingsAccountUpdateCommand(this.fixedDepositsAccountData.id, 'updateWithHoldTax', {
            withHoldTax: true
          })
          .subscribe(() => {
            this.reload();
          });
      }
    });
  }

  /**
   * Opens a printable deposit certificate for this account.
   */
  printCertificate() {
    this.dialog.open(DepositCertificateDialogComponent, {
      width: '900px',
      data: {
        accountType: 'FD',
        accountData: this.fixedDepositsAccountData,
        clientId: this.fixedDepositsAccountData.clientId
      }
    });
  }

  /**
   * Disables withhold tax for fixed deposits account
   * Fixed deposits endpoint is not supported so using Savings endpoint.
   */
  private disableWithHoldTax() {
    const disableWithHoldTaxDialogRef = this.dialog.open(ToggleWithholdTaxDialogComponent, {
      data: { isEnable: false }
    });
    disableWithHoldTaxDialogRef.afterClosed().subscribe((response: any) => {
      if (response.confirm) {
        this.savingsService
          .executeSavingsAccountUpdateCommand(this.fixedDepositsAccountData.id, 'updateWithHoldTax', {
            withHoldTax: false
          })
          .subscribe(() => {
            this.reload();
          });
      }
    });
  }
}