/**
 * DCF (Discounted Cash Flow) Valuation Service
 *
 * Calculates intrinsic value of a company using DCF methodology
 */
/**
 * DCF valuation inputs
 */
export interface DCFInputs {
    freeCashFlow: number;
    revenue: number;
    revenueGrowthRates: number[];
    terminalGrowthRate: number;
    fcfMargin: number;
    wacc: number;
    sharesOutstanding: number;
    netDebt?: number;
}
/**
 * DCF valuation result
 */
export interface DCFValuation {
    symbol: string;
    companyName: string;
    timestamp: Date;
    inputs: DCFInputs;
    projectedCashFlows: Array<{
        year: number;
        revenue: number;
        fcf: number;
        discountFactor: number;
        presentValue: number;
    }>;
    sumPVCashFlows: number;
    terminalValue: number;
    pvTerminalValue: number;
    enterpriseValue: number;
    equityValue: number;
    valuePerShare: number;
    currentPrice: number;
    upside: number;
    recommendation: 'Strong Buy' | 'Buy' | 'Hold' | 'Sell' | 'Strong Sell';
}
/**
 * DCF Valuation Service
 */
export declare class DCFValuationService {
    private cache;
    constructor();
    /**
     * Calculate DCF valuation for a company
     */
    calculateDCF(symbol: string, customInputs?: Partial<DCFInputs>): Promise<DCFValuation>;
    /**
     * Build default DCF inputs from financial data
     */
    private buildDefaultInputs;
    /**
     * Project cash flows for 5 years
     */
    private projectCashFlows;
    /**
     * Get recommendation based on upside percentage
     */
    private getRecommendation;
    /**
     * Perform sensitivity analysis on key assumptions
     */
    sensitivityAnalysis(symbol: string, baseInputs: Partial<DCFInputs>): Promise<{
        waccSensitivity: Array<{
            wacc: number;
            valuePerShare: number;
        }>;
        terminalGrowthSensitivity: Array<{
            terminalGrowth: number;
            valuePerShare: number;
        }>;
        fcfMarginSensitivity: Array<{
            fcfMargin: number;
            valuePerShare: number;
        }>;
    }>;
}
/**
 * Singleton instance
 */
export declare const dcfValuationService: DCFValuationService;
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