hanzo.ai/app/(app)/home/_workspace.tsx

'use client'

// /home, as the app. The route's client half.
//
// The same shape as /chat and /board, because it is the same shell: the rail,
// the destination it is lit on, and one pane — and, as on /chat, the open room
// rides the address.

import { useEffect, useRef } from 'react'
import { Room } from '@hanzo/app/Room'
import { Home } from '@hanzo/app/Home'
import { useOpen, openRoom } from '@hanzo/app/open'

/**
 * The open room rides the address, both directions, so a reload keeps your
 * place and a link opens the same room.
 *
 * ONE effect owns the URL, the way `/chat` carries `?thread=`. On arrival the
 * param opens the room — Home then resolves the key against the org's rooms,
 * which answer only a validated principal, so a shared link degrades to "not
 * here" rather than leaking anything. The open room mirrors back out: pressing
 * a room in the rail writes its key, and leaving it strips the param. The
 * mirror is idempotent, so the mount open re-runs the effect, finds the param
 * it just read, and writes nothing.
 */
export default function HomeRoom() {
  const { room } = useOpen()
  const seeded = useRef(false)
  useEffect(() => {
    const isDesktop = typeof window !== 'undefined' && Boolean((window as unknown as { __TAURI__?: unknown; __TAURI_INTERNALS__?: unknown }).__TAURI__ || (window as unknown as { __TAURI__?: unknown; __TAURI_INTERNALS__?: unknown }).__TAURI_INTERNALS__)
    if (isDesktop) {
      window.location.replace('/chat')
      return
    }
    const url = new URL(window.location.href)
    if (!seeded.current) {
      seeded.current = true
      const asked = url.searchParams.get('room')
      if (asked) {
        openRoom(asked)
        return
      }
    }
    const has = url.searchParams.get('room')
    if ((room ?? null) === (has ?? null)) return
    if (room) url.searchParams.set('room', room)
    else url.searchParams.delete('room')
    window.history.replaceState(null, '', `${url.pathname}${url.search}${url.hash}`)
  }, [room])

  return (
    <Room mode="home">
      <Home />
    </Room>
  )
}