de193bc783
- Next.js SPA mit Bun Runtime - Prisma mit SQLite Datenbank - Vollständige CRUD-Operationen für Fahrräder, Verschleißteile und Wartungshistorie - Warnsystem für bevorstehende Wartungen - Statistik-Features (Gesamtkosten, durchschnittliche Lebensdauer) - Zod-Validierung für alle API-Requests - Umfassende Test-Suite (41 Tests)
86 lines
2.4 KiB
TypeScript
86 lines
2.4 KiB
TypeScript
import { WearPart, MaintenanceHistory } from '@prisma/client'
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export function calculateServiceStatus(
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part: WearPart & { maintenanceHistory: MaintenanceHistory[] }
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): {
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status: 'OK' | 'WARNING' | 'CRITICAL'
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remainingKm: number
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percentageUsed: number
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} {
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const latestMaintenance = part.maintenanceHistory[0]
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const currentMileage = latestMaintenance?.mileage ?? part.installMileage
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const kmSinceInstall = currentMileage - part.installMileage
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const remainingKm = part.serviceInterval - kmSinceInstall
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const percentageUsed = (kmSinceInstall / part.serviceInterval) * 100
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let status: 'OK' | 'WARNING' | 'CRITICAL' = 'OK'
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if (percentageUsed >= 90) {
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status = 'CRITICAL'
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} else if (percentageUsed >= 75) {
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status = 'WARNING'
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}
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return {
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status,
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remainingKm: Math.max(0, remainingKm),
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percentageUsed: Math.min(100, percentageUsed),
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}
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}
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export function calculateTotalCosts(
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parts: (WearPart & { maintenanceHistory: MaintenanceHistory[] })[]
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): number {
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return parts.reduce((total, part) => {
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const partCost = part.cost ?? 0
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const maintenanceCost = part.maintenanceHistory.reduce(
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(sum, m) => sum + (m.cost ?? 0),
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0
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)
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return total + partCost + maintenanceCost
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}, 0)
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}
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export function calculateAverageLifespan(
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parts: (WearPart & { maintenanceHistory: MaintenanceHistory[] })[]
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): number | null {
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const replacedParts = parts.filter(
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(p) => p.status === 'REPLACED' && p.maintenanceHistory.length > 0
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)
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if (replacedParts.length === 0) return null
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const totalKm = replacedParts.reduce((sum, part) => {
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const installHistory = part.maintenanceHistory.find(
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(h) => h.action === 'INSTALL'
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)
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const replaceHistory = part.maintenanceHistory.find(
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(h) => h.action === 'REPLACE'
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)
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if (installHistory && replaceHistory) {
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return sum + (replaceHistory.mileage - installHistory.mileage)
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}
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return sum
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}, 0)
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return totalKm / replacedParts.length
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}
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export function formatDate(date: Date | string): string {
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const d = typeof date === 'string' ? new Date(date) : date
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return d.toLocaleDateString('de-DE', {
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year: 'numeric',
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month: '2-digit',
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day: '2-digit',
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})
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}
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export function formatCurrency(amount: number | null | undefined): string {
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if (amount === null || amount === undefined) return '0,00 €'
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return new Intl.NumberFormat('de-DE', {
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style: 'currency',
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currency: 'EUR',
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}).format(amount)
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}
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