import { NextRequest, NextResponse } from 'next/server'
import { requireAuth } from '@/lib/auth'
import { indexEntity, reindexAll } from '@/lib/search'

export async function POST(request: NextRequest) {
  try {
    const user = await requireAuth()
    const body = await request.json()
    const { action, entityType, entityId, title, content, metadata } = body

    // Only allow admins or content owners to index entities
    if (user.role !== 'admin') {
      return NextResponse.json(
        { error: 'Admin access required' },
        { status: 403 }
      )
    }

    if (action === 'reindex-all') {
      // Reindex all entities - admin only operation
      await reindexAll()
      return NextResponse.json(
        { message: 'Search index rebuilt successfully' },
        { status: 200 }
      )
    }

    if (action === 'index-entity') {
      // Index a single entity
      if (!entityType || !entityId || !title) {
        return NextResponse.json(
          { error: 'entityType, entityId, and title are required' },
          { status: 400 }
        )
      }

      const validTypes = ['song', 'album', 'artist', 'playlist']
      if (!validTypes.includes(entityType)) {
        return NextResponse.json(
          { error: 'Invalid entityType. Must be one of: song, album, artist, playlist' },
          { status: 400 }
        )
      }

      const indexedEntity = await indexEntity(
        entityType,
        entityId,
        title,
        content,
        metadata
      )

      return NextResponse.json(
        {
          message: 'Entity indexed successfully',
          entity: indexedEntity,
        },
        { status: 201 }
      )
    }

    return NextResponse.json(
      { error: 'Invalid action. Must be "reindex-all" or "index-entity"' },
      { status: 400 }
    )
  } catch (error) {
    console.error('Search index error:', error)
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json(
        { error: 'Unauthorized' },
        { status: 401 }
      )
    }
    return NextResponse.json(
      { error: 'Failed to update search index' },
      { status: 500 }
    )
  }
}