import { readBody, getRouterParam, createError } from 'h3'
import { prisma } from '../../utils/db'
import { requireUser } from '../../utils/auth'

export default defineEventHandler(async (event) => {
  const user = await requireUser(event)
  const body = await readBody<{ name?: string; balanceType?: 'cumulative' | 'monthly_reset'; initialBalance?: number; active?: boolean }>(event)
  const id = getRouterParam(event, 'id')!

  const asset = await prisma.asset.findFirst({ where: { id, userId: user.id } })
  if (!asset) throw createError({ statusCode: 404, statusMessage: 'Asset not found' })
  if (body.name !== undefined && !body.name.trim()) {
    throw createError({ statusCode: 400, statusMessage: 'Asset name is required' })
  }

  return prisma.asset.update({
    where: { id },
    data: {
      ...(body.name !== undefined ? { name: body.name.trim() } : {}),
      ...(body.balanceType !== undefined ? { balanceType: body.balanceType } : {}),
      ...(body.initialBalance !== undefined ? { initialBalance: Number(body.initialBalance) } : {}),
      ...(body.active !== undefined ? { active: body.active } : {})
    }
  })
})