import type { RouteLocationNormalizedLoaded, RouteLocationResolved } from 'vue-router'
import type { WorkspaceTabCandidate } from './types'

type WorkspaceRoute = RouteLocationNormalizedLoaded | RouteLocationResolved

export function workspaceRouteId(route: WorkspaceRoute) {
  return route.name === undefined || route.name === null ? null : String(route.name)
}

export function isWorkspaceRoute(route: WorkspaceRoute) {
  return Boolean(
    workspaceRouteId(route)
    && route.meta.workspaceTab !== false
    && route.matched.some((record) => record.meta.requiresAuth),
  )
}

export function canAccessWorkspaceRoute(route: WorkspaceRoute, permissions: ReadonlySet<string>) {
  if (!isWorkspaceRoute(route)) return false
  const permission = typeof route.meta.permission === 'string' ? route.meta.permission : undefined
  const alternatives = route.meta.permissionAnyOf ?? []
  if (!permission && alternatives.length === 0) return true
  return Boolean(
    (permission && permissions.has(permission))
    || alternatives.some((code) => permissions.has(code)),
  )
}

export function workspaceTabCandidate(route: WorkspaceRoute): WorkspaceTabCandidate | null {
  const id = workspaceRouteId(route)
  if (!id || !isWorkspaceRoute(route)) return null
  return {
    id,
    title: typeof route.meta.title === 'string' && route.meta.title.trim() ? route.meta.title.trim() : '未命名页面',
    path: route.fullPath,
  }
}