'use server'

import { redirect } from 'next/navigation'
import { z } from 'zod'
import { requireUser } from '@/lib/auth/current'
import { AccessError } from '@/lib/errors'
import { createChannel } from '@/lib/chat/service'
import { de } from '@/lib/i18n/de'

export type ActionResult = { ok: true } | { ok: false; error: string }

const schema = z.object({
  key: z.string().min(2).max(40),
  name: z.string().min(2).max(120),
  description: z.string().max(500).optional(),
  minClearance: z.coerce.number().int().min(0).max(5),
})

export async function createChannelAction(
  _prev: ActionResult | null,
  formData: FormData,
): Promise<ActionResult> {
  const user = await requireUser()
  const parsed = schema.safeParse(Object.fromEntries(formData))
  if (!parsed.success) return { ok: false, error: de.actionErrors.default! }

  let key: string
  try {
    const kanal = await createChannel(user.permissions, parsed.data)
    key = kanal.key
  } catch (error) {
    if (error instanceof AccessError) {
      return { ok: false, error: de.actionErrors[error.code] ?? de.actionErrors.default! }
    }
    console.error('[kanaele] unerwartet', error)
    return { ok: false, error: de.actionErrors.default! }
  }

  redirect(`/kanaele/${key}`)
}