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

// GET /api/labels - Get all unique labels
export async function GET(request: NextRequest) {
  try {
    const notes = await prisma.note.findMany({
      select: { labels: true }
    })

    const labelsSet = new Set<string>()
    notes.forEach(note => {
      const labels = note.labels ? JSON.parse(note.labels) : null
      if (labels) {
        labels.forEach((label: string) => labelsSet.add(label))
      }
    })

    return NextResponse.json({
      success: true,
      data: Array.from(labelsSet).sort()
    })
  } catch (error) {
    console.error('GET /api/labels error:', error)
    return NextResponse.json(
      { success: false, error: 'Failed to fetch labels' },
      { status: 500 }
    )
  }
}