import { NextRequest, NextResponse } from 'next/server'
import { prisma } from '@/lib/prisma'
import { bikeSchema } from '@/lib/validations'

export async function GET(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    const bike = await prisma.bike.findUnique({
      where: { id: params.id },
      include: {
        wearParts: {
          include: {
            maintenanceHistory: {
              orderBy: {
                date: 'desc',
              },
            },
          },
          orderBy: {
            createdAt: 'desc',
          },
        },
      },
    })

    if (!bike) {
      return NextResponse.json(
        { error: 'Fahrrad nicht gefunden' },
        { status: 404 }
      )
    }

    return NextResponse.json(bike)
  } catch (error) {
    console.error('Error fetching bike:', error)
    return NextResponse.json(
      { error: 'Fehler beim Laden des Fahrrads' },
      { status: 500 }
    )
  }
}

export async function PUT(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    const body = await request.json()
    const validatedData = bikeSchema.parse(body)

    const bike = await prisma.bike.update({
      where: { id: params.id },
      data: {
        name: validatedData.name,
        brand: validatedData.brand,
        model: validatedData.model,
        purchaseDate: validatedData.purchaseDate || null,
        currentMileage: validatedData.currentMileage ?? 0,
        notes: validatedData.notes,
      },
    })

    return NextResponse.json(bike)
  } catch (error) {
    console.error('Error updating bike:', error)
    if (error instanceof Error && error.name === 'ZodError') {
      return NextResponse.json(
        { error: 'Ungültige Daten', details: error },
        { status: 400 }
      )
    }
    if (
      error instanceof Error &&
      error.message.includes('Record to update does not exist')
    ) {
      return NextResponse.json(
        { error: 'Fahrrad nicht gefunden' },
        { status: 404 }
      )
    }
    return NextResponse.json(
      { error: 'Fehler beim Aktualisieren des Fahrrads' },
      { status: 500 }
    )
  }
}

export async function DELETE(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    await prisma.bike.delete({
      where: { id: params.id },
    })

    return NextResponse.json({ message: 'Fahrrad gelöscht' })
  } catch (error) {
    console.error('Error deleting bike:', error)
    if (
      error instanceof Error &&
      error.message.includes('Record to delete does not exist')
    ) {
      return NextResponse.json(
        { error: 'Fahrrad nicht gefunden' },
        { status: 404 }
      )
    }
    return NextResponse.json(
      { error: 'Fehler beim Löschen des Fahrrads' },
      { status: 500 }
    )
  }
}