import { desc, eq, like, or, sql } from 'drizzle-orm'
import { useDB, schema } from '../../utils/db.js'
import { requireAdmin } from '../../utils/auth.js'
import { parsePagination } from '../../utils/pagination.js'

export default defineEventHandler(async (event) => {
  requireAdmin(event)

  const db = useDB()
  const query = getQuery(event)
  const { page, limit, offset, search } = parsePagination(event)
  const type = query.type || ''

  const conditions = []
  if (type) conditions.push(eq(schema.submissions.type, type))
  if (search) conditions.push(like(schema.submissions.data, `%${search}%`))

  const whereClause = conditions.length
    ? conditions.reduce((a, b) => sql`${a} AND ${b}`)
    : sql`1=1`

  const [{ count: total }] = db
    .select({ count: sql`count(*)` })
    .from(schema.submissions)
    .where(whereClause)
    .all()

  const list = db
    .select()
    .from(schema.submissions)
    .where(whereClause)
    .orderBy(desc(schema.submissions.createdAt))
    .limit(limit)
    .offset(offset)
    .all()

  const items = list.map(item => ({
    ...item,
    data: JSON.parse(item.data),
  }))

  return { items, total, page, limit, totalPages: Math.ceil(total / limit) }
})