/**
 * Progress Dashboard
 * Displays writing progress, streaks, and motivation metrics
 */
import type { SessionManager } from './session-manager.js';
import type { OutputFormatter } from '../cli/output.js';
export interface DashboardOptions {
    showStreak?: boolean;
    showVelocity?: boolean;
    showRecentSessions?: boolean;
    showMilestones?: boolean;
    compact?: boolean;
}
export declare class ProgressDashboard {
    private sessionManager;
    constructor(sessionManager: SessionManager);
    /**
     * Display full progress dashboard
     */
    display(output: OutputFormatter, options?: DashboardOptions): Promise<void>;
    /**
     * Display streak information with visual flair
     */
    private displayStreak;
    /**
     * Display velocity metrics
     */
    private displayVelocity;
    /**
     * Display recent sessions
     */
    private displayRecentSessions;
    /**
     * Display milestones and celebrations
     */
    private displayMilestones;
    /**
     * Display motivation message
     */
    private displayMotivation;
    /**
     * Get streak emoji based on streak length
     */
    private getStreakEmoji;
    /**
     * Get type emoji
     */
    private getTypeEmoji;
    /**
     * Assess writing pace
     */
    private assessPace;
    /**
     * Calculate achieved milestones
     */
    private calculateMilestones;
    /**
     * Get motivational message
     */
    private getMotivationMessage;
    /**
     * Format duration in human-readable form
     */
    private formatDuration;
    /**
     * Format date as readable string
     */
    private formatDate;
    /**
     * Format relative date (e.g., "3 days ago")
     */
    private formatRelativeDate;
    /**
     * Calculate duration between two ISO datetime strings
     */
    private calculateDuration;
}
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