hanzo.ai/components/shell/prompt.ts

import { CHAT } from '@/components/home/nav-data'

/**
 * What a visitor typed, held across the trip to Hanzo IAM.
 *
 * sessionStorage, so it dies with the tab and never rides a URL past the
 * issuer. Read once: the composer takes it the moment there is a session.
 */
const KEY = 'hz_prompt'

export function keep(text: string): void {
  try {
    window.sessionStorage.setItem(KEY, text)
  } catch {
    /* private mode — the visitor lands in chat with an empty field */
  }
}

export function take(): string {
  try {
    const text = window.sessionStorage.getItem(KEY) ?? ''
    window.sessionStorage.removeItem(KEY)
    return text
  } catch {
    return ''
  }
}

/** Chat reads its opening line off `q` — the name every Hanzo chat takes. */
export const chat = (prompt: string): string => {
  const q = prompt.trim()
  return q ? `${CHAT}?q=${encodeURIComponent(q)}` : CHAT
}