import { NextRequest, NextResponse } from 'next/server'

const EMDASH_URL = process.env.EMDASH_URL || 'http://localhost:4321'
const EMDASH_TOKEN = process.env.EMDASH_API_TOKEN || ''

export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ collection: string }> }
) {
  const { collection } = await params
  if (!EMDASH_TOKEN) return NextResponse.json({ items: [] })
  try {
    const url = new URL(`/_emdash/api/content/${collection}`, EMDASH_URL)
    const { searchParams } = request.nextUrl
    url.searchParams.set('status', searchParams.get('status') || 'published')
    url.searchParams.set('limit', searchParams.get('limit') || '20')
    const res = await fetch(url.toString(), {
      headers: { Authorization: `Bearer ${EMDASH_TOKEN}` },
      next: { revalidate: 60 },
    })
    if (!res.ok) return NextResponse.json({ items: [] })
    const json = await res.json() as { data?: { items?: unknown[] }; items?: unknown[] }
    const raw = json.data?.items ?? json.items ?? []
    // emDash stores image fields as { provider, id, src } — flatten to plain URL strings.
    const items = raw.map((item: unknown) => {
      if (!item || typeof item !== 'object') return item
      const r = item as Record<string, unknown>
      const data = r.data as Record<string, unknown> | undefined
      if (!data) return item
      const normalized: Record<string, unknown> = {}
      for (const [k, v] of Object.entries(data)) {
        normalized[k] = v && typeof v === 'object' && 'src' in v ? (v as { src: unknown }).src ?? v : v
      }
      return { ...r, data: normalized }
    })
    return NextResponse.json({ items })
  } catch {
    return NextResponse.json({ items: [] })
  }
}