opencode/packages/gui-extensions/src/terminal/title.ts

const template = "Terminal {{number}}"

const numbered = [
  template,
  "محطة طرفية {{number}}",
  "Терминал {{number}}",
  "ターミナル {{number}}",
  "터미널 {{number}}",
  "เทอร์มินัล {{number}}",
  "终端 {{number}}",
  "終端機 {{number}}",
]

export function defaultTitle(number: number) {
  return template.replace("{{number}}", String(number))
}

export function isDefaultTitle(title: string, number: number) {
  return numbered.some((text) => title === text.replace("{{number}}", String(number)))
}

export function titleNumber(title: string, max: number) {
  return Array.from({ length: max }, (_, idx) => idx + 1).find((number) => isDefaultTitle(title, number))
}

export const terminalTabLabel = (input: {
  title?: string
  titleNumber?: number
  t: (key: string, vars?: Record<string, string | number | boolean>) => string
}) => {
  const title = input.title ?? ""
  const number = input.titleNumber ?? 0
  const defaultTitle = Number.isFinite(number) && number > 0 && isDefaultTitle(title, number)

  if (title && !defaultTitle) return title
  if (number > 0) return input.t("title.numbered", { number })
  if (title) return title
  return input.t("tab.title")
}