import { DeepReadonly, InjectionKey, Ref } from 'vue'
import DialogBox from '@/components/ui/DialogBox.vue'
import MessageToaster from '@/components/ui/MessageToaster.vue'
import Router from '@/router'

export interface ReadonlyInjectionKey<T> extends InjectionKey<[Readonly<T> | DeepReadonly<T>, Closure]> {
}

export const RouterKey: InjectionKey<Router> = Symbol('Router')
export const ScreenNameKey: ReadonlyInjectionKey<ScreenName> = Symbol('ScreenName')

export const DialogBoxKey: InjectionKey<Ref<InstanceType<typeof DialogBox>>> = Symbol('DialogBox')
export const MessageToasterKey: InjectionKey<Ref<InstanceType<typeof MessageToaster>>> = Symbol('MessageToaster')

export const SongsKey: ReadonlyInjectionKey<Ref<Song[]>> | InjectionKey<Ref<Song[]>> = Symbol('Songs')
export const CurrentSongKey: InjectionKey<Ref<Song | null>> = Symbol('CurrentSong')
export const SelectedSongsKey: ReadonlyInjectionKey<Ref<Song[]>> = Symbol('SelectedSongs')
export const SongListConfigKey: ReadonlyInjectionKey<Partial<SongListConfig>> = Symbol('SongListConfig')
export const SongListSortFieldKey: ReadonlyInjectionKey<Ref<SongListSortField>> = Symbol('SongListSortField')
export const SongListSortOrderKey: ReadonlyInjectionKey<Ref<SortOrder>> = Symbol('SongListSortOrder')

export const EditSongFormInitialTabKey: ReadonlyInjectionKey<Ref<EditSongFormTabName>> = Symbol('EditSongFormInitialTab')

export const PlaylistKey: ReadonlyInjectionKey<Ref<Playlist>> = Symbol('Playlist')
export const PlaylistFolderKey: ReadonlyInjectionKey<Ref<PlaylistFolder>> = Symbol('PlaylistFolder')
export const UserKey: ReadonlyInjectionKey<Ref<User>> = Symbol('User')