import { NextRequest, NextResponse } from 'next/server'
import { auth } from '@/auth'
import { getAISettings } from '@/app/actions/ai-settings'
import { describeImages } from '@/lib/ai/services/image-description.service'

export async function POST(req: NextRequest) {
  try {
    const session = await auth()
    if (!session?.user?.id) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
    }

    const userSettings = await getAISettings(session.user.id)
    if (userSettings.paragraphRefactor === false) {
      return NextResponse.json({ error: 'Feature disabled' }, { status: 403 })
    }

    const { imageUrls, mode, language } = await req.json()

    if (!Array.isArray(imageUrls) || imageUrls.length === 0) {
      return NextResponse.json({ error: 'imageUrls must be a non-empty array' }, { status: 400 })
    }

    const result = await describeImages(
      imageUrls,
      mode === 'title' ? 'title' : 'description',
      language || 'fr'
    )

    // For title mode, return suggestions in same format as /api/ai/title-suggestions
    if (mode === 'title' && result.suggestions) {
      return NextResponse.json({ suggestions: result.suggestions })
    }

    return NextResponse.json(result)
  } catch (error: any) {
    console.error('[describe-image] Error:', error)
    return NextResponse.json(
      { error: error.message || 'Failed to describe image' },
      { status: 500 }
    )
  }
}