import { getGameDb } from '@/lib/db/client'
import { ExploreError, explorePlanet } from '@/lib/game/save'

// Scan one body of the current system. Body: { "planetId": number }. Returns the fresh
// system state plus what this scan found. Costs a turn; each body can only be scanned once.
export async function POST(req: Request) {
  let body: unknown
  try {
    body = await req.json()
  } catch {
    return Response.json({ error: 'Invalid JSON body' }, { status: 400 })
  }

  const planetId = (body as { planetId?: unknown }).planetId
  if (typeof planetId !== 'number' || !Number.isInteger(planetId)) {
    return Response.json({ error: 'planetId must be an integer' }, { status: 400 })
  }

  try {
    const db = await getGameDb()
    return Response.json(await explorePlanet(db, planetId))
  } catch (err) {
    if (err instanceof ExploreError) {
      return Response.json({ error: err.message }, { status: err.status })
    }
    throw err
  }
}