import { kpis, kpi } from 'business-as-code'

// Create multiple KPIs
const kpiList = kpis([
  {
    name: 'Monthly Recurring Revenue',
    description: 'Total predictable revenue per month',
    category: 'financial',
    unit: 'USD',
    target: 100000,
    current: 85000,
    frequency: 'monthly',
    dataSource: 'Billing System',
    formula: 'SUM(active_subscriptions.price)',
  },
  {
    name: 'Customer Churn Rate',
    category: 'customer',
    unit: 'percent',
    target: 5,
    current: 3.2,
    frequency: 'monthly',
  },
])

// Create a single KPI
const nps = kpi({
  name: 'Net Promoter Score',
  category: 'customer',
  unit: 'score',
  target: 50,
  current: 48,
})

import { calculateAchievement, kpiMeetsTarget, calculateVariance } from 'business-as-code'

// Calculate achievement percentage
const achievement = calculateAchievement(kpiList[0])
// 85 (85000 / 100000 * 100)

// Check if KPI meets target
const onTarget = kpiMeetsTarget(kpiList[1])
// true (3.2 <= 5 for churn - lower is better)

// Calculate variance from target
const variance = calculateVariance(kpiList[0])
// -15000 (85000 - 100000)

const variancePct = calculateVariancePercentage(kpiList[0])
// -15 (-15%)

import {
  getKPIsByCategory,
  getKPIsByFrequency,
  getKPIsOnTarget,
  getKPIsOffTarget,
  groupByCategory,
} from 'business-as-code'

// Filter by category
const financial = getKPIsByCategory(kpiList, 'financial')
const customer = getKPIsByCategory(kpiList, 'customer')

// Filter by frequency
const monthly = getKPIsByFrequency(kpiList, 'monthly')

// Get KPIs on/off target
const onTarget = getKPIsOnTarget(kpiList)
const offTarget = getKPIsOffTarget(kpiList)

// Group by category
const grouped = groupByCategory(kpiList)
// { financial: [...], customer: [...] }

import { calculateHealthScore } from 'business-as-code'

const healthScore = calculateHealthScore(kpiList)
// 0-100 score based on target achievement

import { updateCurrent, updateTarget } from 'business-as-code'

// Update current value
const updated = updateCurrent(kpiList[0], 90000)

// Update target
const newTarget = updateTarget(kpiList[0], 120000)

import { formatValue } from 'business-as-code'

const formatted = formatValue(kpiList[0])
// "$85,000" or "85000 USD"

import { comparePerformance } from 'business-as-code'

const comparison = comparePerformance(currentKPIs, previousKPIs)
// { improved: [...], declined: [...], unchanged: [...] }

import { validateKPIs } from 'business-as-code'

const errors = validateKPIs(kpiList)
if (errors.length > 0) {
  console.error('Invalid KPIs:', errors)
}

interface KPIDefinition {
  name: string
  description?: string
  category?: 'financial' | 'customer' | 'operations' | 'people' | 'growth'
  unit?: string
  target?: number
  current?: number
  frequency?: TimePeriod
  dataSource?: string
  formula?: string
  metadata?: Record<string, unknown>
}