import { EventEmitter, OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { GstSummary } from '../../../models/loan-summary.model';
import { GstQuickSummary } from '../../../models/api-response.model';
import { UcLineChartDataset } from '../../shared/charts/line-chart/line-chart.component';
import { UcChartDataset } from '../../shared/charts/bar-chart/bar-chart.component';
import * as i0 from "@angular/core";
export declare class GstSummaryComponent implements OnInit, OnChanges {
    /** Falls back to demo data only when no gstQuickSummary response is bound */
    gstSummary: GstSummary;
    gstViewMode: 'overview' | 'detailed';
    gstDetailedMarkdown: string;
    isLoadingGstDetails: boolean;
    /** Quick summary data from backend API for overview cards */
    gstQuickSummary: GstQuickSummary | null;
    gstViewModeChange: EventEmitter<"overview" | "detailed">;
    monthlyReturnsPageIndex: number;
    filingHistoryPageIndex: number;
    readonly itemsPerPage = 5;
    turnoverChartLabels: string[];
    turnoverChartDatasets: UcLineChartDataset[];
    monthlyReturnsChartLabels: string[];
    monthlyReturnsChartDatasets: UcChartDataset[];
    private loanSummaryService;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    private computeChartData;
    /** Keeps the Monthly Returns chart in sync with whatever page the table is showing. */
    private updateMonthlyReturnsChart;
    onGstViewModeChange(mode: 'overview' | 'detailed'): void;
    formatLakhs(amount: number): string;
    /** True when the backend quick-summary actually returned a usable value (not missing/"-"). */
    hasQuickValue(value: string | number | undefined | null): boolean;
    /** Appends "%" unless the value (e.g. from a pre-formatted backend response) already has one. */
    withPercent(value: string | number): string;
    getFilingStatusClass(status: string): string;
    getCombinedMonthlyReturnsData(): Array<{
        month: string;
        turnover: number;
        totalSales: number;
        totalPurchases: number;
        totalTaxPaid: number;
    }>;
    getCombinedFilingHistoryData(): Array<{
        period: string;
        returnType: string;
        filedDate: string;
        status: 'Filed' | 'Pending' | 'Delayed';
    }>;
    private generateFilingDate;
    private getRandomFilingStatus;
    getPaginatedMonthlyReturns(): Array<{
        month: string;
        turnover: number;
        totalSales: number;
        totalPurchases: number;
        totalTaxPaid: number;
    }>;
    canGoPrevMonthlyReturns(): boolean;
    canGoNextMonthlyReturns(): boolean;
    prevMonthlyReturnsPage(): void;
    nextMonthlyReturnsPage(): void;
    getMonthlyReturnsPaginationInfo(): string;
    getPaginatedFilingHistory(): Array<{
        period: string;
        returnType: string;
        filedDate: string;
        status: 'Filed' | 'Pending' | 'Delayed';
    }>;
    canGoPrevFilingHistory(): boolean;
    canGoNextFilingHistory(): boolean;
    prevFilingHistoryPage(): void;
    nextFilingHistoryPage(): void;
    getFilingHistoryPaginationInfo(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<GstSummaryComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<GstSummaryComponent, "uc-gst-summary", never, { "gstSummary": { "alias": "gstSummary"; "required": false; }; "gstViewMode": { "alias": "gstViewMode"; "required": false; }; "gstDetailedMarkdown": { "alias": "gstDetailedMarkdown"; "required": false; }; "isLoadingGstDetails": { "alias": "isLoadingGstDetails"; "required": false; }; "gstQuickSummary": { "alias": "gstQuickSummary"; "required": false; }; }, { "gstViewModeChange": "gstViewModeChange"; }, never, never, true, never>;
}