export enum FriendshipType {
  Unknown = 0,
  Confirm,
  Receive,
  Verify,
}

/**
 * Huan(202002): Does those numbers are the underlying Wechat Protocol Data Values?
 */
export enum FriendshipSceneType {
  Unknown  = 0,   // Huan(202003) added by myself
  QQ       = 1,    // FIXME: Huan(202002) in Wechat PC, QQ = 12.
  Email    = 2,
  Weixin   = 3,
  QQtbd    = 12,   // FIXME: confirm the two QQ number QQ号搜索
  Room     = 14,
  Phone    = 15,
  Card     = 17,   // 名片分享
  Location = 18,
  Bottle   = 25,
  Shaking  = 29,
  QRCode   = 30,
}

/** @hidden */
export interface FriendshipPayloadBase {
  id        : string,

  contactId : string,
  hello?    : string,
  timestamp : number, // Unix Timestamp, in seconds or milliseconds
}

/** @hidden */
export type FriendshipPayloadConfirm = FriendshipPayloadBase & {
  type      : FriendshipType.Confirm,
}

/** @hidden */
export type FriendshipPayloadReceive = FriendshipPayloadBase & {
  scene?    : FriendshipSceneType,
  stranger? : string,
  ticket    : string,
  type      : FriendshipType.Receive,
}

/** @hidden */
export type FriendshipPayloadVerify = FriendshipPayloadBase & {
  type      : FriendshipType.Verify,
}

export type FriendshipPayload = FriendshipPayloadConfirm
                                  | FriendshipPayloadReceive
                                  | FriendshipPayloadVerify

export interface FriendshipSearchCondition {
  phone: string,
  /**
   * @deprecated: use `handle` instead.
   *  @see https://github.com/wechaty/puppet/issues/181
   */
  weixin?: string,
  handle: string
}

interface FriendshipAddOptionsObject {
  roomId?: string,
  contactId?: string,
  hello?: string,
}

export type FriendshipAddOptions = string | FriendshipAddOptionsObject

// https://stackoverflow.com/a/48244432/1123955
type AtLeastOne<T, U = {[K in keyof T]: Pick<T, K> }> = Partial<T> & U[keyof U]

export type FriendshipSearchQueryFilter = AtLeastOne<FriendshipSearchCondition>