'use server';

import { MetricsService, WeeklyMetricsOverview, VelocityTrend } from '@/services/analytics/metrics';
import { getToday } from '@/lib/date-utils';

/**
 * Récupère les métriques hebdomadaires pour une date donnée
 */
export async function getWeeklyMetrics(date?: Date): Promise<{
  success: boolean;
  data?: WeeklyMetricsOverview;
  error?: string;
}> {
  try {
    const targetDate = date || getToday();
    const metrics = await MetricsService.getWeeklyMetrics(targetDate);
    
    return {
      success: true,
      data: metrics
    };
  } catch (error) {
    console.error('Error fetching weekly metrics:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : 'Failed to fetch weekly metrics'
    };
  }
}

/**
 * Récupère les tendances de vélocité sur plusieurs semaines
 */
export async function getVelocityTrends(weeksBack: number = 4): Promise<{
  success: boolean;
  data?: VelocityTrend[];
  error?: string;
}> {
  try {
    if (weeksBack < 1 || weeksBack > 12) {
      return {
        success: false,
        error: 'Invalid weeksBack parameter (must be 1-12)'
      };
    }
    
    const trends = await MetricsService.getVelocityTrends(weeksBack);
    
    return {
      success: true,
      data: trends
    };
  } catch (error) {
    console.error('Error fetching velocity trends:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : 'Failed to fetch velocity trends'
    };
  }
}