WearPartTracker/app/page.tsx

'use client'

import { useEffect, useState } from 'react'
import { BikeWithParts } from '@/types'
import BikeCard from '@/app/components/BikeCard'
import BikeForm from '@/app/components/BikeForm'
import StatsCard from '@/app/components/StatsCard'

export default function Home() {
  const [bikes, setBikes] = useState<BikeWithParts[]>([])
  const [loading, setLoading] = useState(true)
  const [showForm, setShowForm] = useState(false)

  useEffect(() => {
    fetchBikes()
  }, [])

  const fetchBikes = async () => {
    try {
      const response = await fetch('/api/bikes')
      if (response.ok) {
        const data = await response.json()
        setBikes(data)
      }
    } catch (error) {
      console.error('Error fetching bikes:', error)
    } finally {
      setLoading(false)
    }
  }

  const handleBikeCreated = () => {
    setShowForm(false)
    fetchBikes()
  }

  const handleBikeDeleted = () => {
    fetchBikes()
  }

  if (loading) {
    return (
      <div className="min-h-screen flex items-center justify-center">
        <div className="text-lg">Lade...</div>
      </div>
    )
  }

  return (
    <main className="min-h-screen p-8 bg-gray-50">
      <div className="max-w-7xl mx-auto">
        <div className="mb-8 flex justify-between items-center">
          <h1 className="text-4xl font-bold text-gray-900">
            Fahrrad Verschleißteile Tracker
          </h1>
          <button
            onClick={() => setShowForm(!showForm)}
            className="px-6 py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors"
          >
            {showForm ? 'Abbrechen' : '+ Neues Fahrrad'}
          </button>
        </div>

        {showForm && (
          <div className="mb-8">
            <BikeForm onSuccess={handleBikeCreated} onCancel={() => setShowForm(false)} />
          </div>
        )}

        <StatsCard bikes={bikes} />

        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 mt-8">
          {bikes.length === 0 ? (
            <div className="col-span-full text-center py-12 text-gray-500">
              <p className="text-lg">Noch keine Fahrräder erfasst.</p>
              <p className="mt-2">Klicken Sie auf &quot;Neues Fahrrad&quot; um zu beginnen.</p>
            </div>
          ) : (
            bikes.map((bike) => (
              <BikeCard
                key={bike.id}
                bike={bike}
                onDelete={handleBikeDeleted}
              />
            ))
          )}
        </div>
      </div>
    </main>
  )
}