import { z } from 'zod'

export const recentGroupsSchema = z.array(
  z.object({
    id: z.string().min(1),
    name: z.string(),
  }),
)

export const starredGroupsSchema = z.array(z.string())

export type RecentGroups = z.infer<typeof recentGroupsSchema>
export type RecentGroup = RecentGroups[number]

const STORAGE_KEY = 'recentGroups'
const STARRED_GROUPS_STORAGE_KEY = 'starredGroups'

export function getRecentGroups() {
  const groupsInStorageJson = localStorage.getItem(STORAGE_KEY)
  const groupsInStorageRaw = groupsInStorageJson
    ? JSON.parse(groupsInStorageJson)
    : []
  const parseResult = recentGroupsSchema.safeParse(groupsInStorageRaw)
  return parseResult.success ? parseResult.data : []
}

export function saveRecentGroup(group: RecentGroup) {
  const recentGroups = getRecentGroups()
  localStorage.setItem(
    STORAGE_KEY,
    JSON.stringify([group, ...recentGroups.filter((rg) => rg.id !== group.id)]),
  )
}

export function deleteRecentGroup(group: RecentGroup) {
  const recentGroups = getRecentGroups()
  localStorage.setItem(
    STORAGE_KEY,
    JSON.stringify(recentGroups.filter((rg) => rg.id !== group.id)),
  )
}

export function getStarredGroups() {
  const starredGroupsJson = localStorage.getItem(STARRED_GROUPS_STORAGE_KEY)
  const starredGroupsRaw = starredGroupsJson
    ? JSON.parse(starredGroupsJson)
    : []
  const parseResult = starredGroupsSchema.safeParse(starredGroupsRaw)
  return parseResult.success ? parseResult.data : []
}

export function starGroup(groupId: string) {
  const starredGroups = getStarredGroups()
  localStorage.setItem(
    STARRED_GROUPS_STORAGE_KEY,
    JSON.stringify([...starredGroups, groupId]),
  )
}

export function unstarGroup(groupId: string) {
  const starredGroups = getStarredGroups()
  localStorage.setItem(
    STARRED_GROUPS_STORAGE_KEY,
    JSON.stringify(starredGroups.filter((g) => g !== groupId)),
  )
}