import { addedUser, getUserById, updatedUser, usersWithThisService, usersWithoutThisService, addServiceIdToUser, deleteServiceIdFromUser } from "./helpers"

class UsersOfServices {
  constructor(adapter, store) {
    this.adapter = adapter
    this.store = store
  }

  /**
   *
   * @param {String} mode
   * @returns {Promise<void>}
   */
  async getUsers(mode) {
    const users = await this.adapter.getUsers({mode})
    this.store.dispatch('users/updateUsers', users)
    return users
  }

  /**
   *
   * @param {Number} serviceId
   * @param {String} mode
   * @returns {Promise<void>}
   */
  async getUsersByService(serviceId, mode) {
    const users = await this.adapter.getUsers({mode})
    const usersWithService = await this.adapter.getUsersByServiceId(serviceId, mode)
    const usersWithoutService = usersWithoutThisService(serviceId, users)
    this.store.dispatch('users/updateUsers', users)
    this.store.dispatch('users/updateUsersWithService', usersWithService)
    this.store.dispatch('users/updateUsersWithoutService', usersWithoutService)
    return usersWithService
  }

  /**
   *
   * @param {Number} serviceId
   * @returns {Promise<void>}
   */
  async getUsersWithoutService(serviceId) {
    const users = this.store.getters['users/users']
    const filteredUsers = usersWithoutThisService(serviceId, users)
    this.store.dispatch('users/updateUsersWithoutService', filteredUsers)
    return filteredUsers
  }
  

  /**
   *
   * @returns {Promise<Object>}
   */
  async addNewUser() {
    const newUser = {id: -1, firstName: '',lastName: '', role: '', email: '', password: '', serviceId: []}
    this.store.dispatch('users/updateSelectedUser', newUser)
    return newUser
  }
  
  /**
   *
   * @returns {Promise<Object>}
   */
  async getSelectedUser() {
    const selectedUser = this.store.getters['users/selectedUser']
    return selectedUser
  }

  /**
   *
   * @param {Number} selectedUserId
   * @returns {Promise<Object>}
   */
  async setSelectedUser(selectedUserId) {
    const selectedUser = getUserById(selectedUserId, this.store.getters['users/users'])
    this.store.dispatch('users/updateSelectedUser', selectedUser)
    return selectedUser
  }

  /**
   *
   * @param {String} status
   * @returns {Promise<String>}
   */
  async setStatusUser(status) {
    this.store.dispatch('users/updateUserStatus', status)
    return status
  }

  /**
   *
   * @param {Number} selectedUserId
   * @param {Number} serviceId
   * @returns {Promise<Object>}
   */
  async addUserToService(selectedUserId, serviceId) {
    // const addedUser = await this.adapter.addUser(selectedUserId, serviceId) // Запрос на обновление пользователя с новым service_id
    const users = this.store.getters['users/users']
    const updatedUsers = addServiceIdToUser(selectedUserId, serviceId, users)
    const usersWithService = usersWithThisService(serviceId, updatedUsers)
    const usersWithoutService = usersWithoutThisService(serviceId, updatedUsers)
    this.store.dispatch('users/updateUsers', updatedUsers)
    this.store.dispatch('users/updateUsersWithService', usersWithService)
    this.store.dispatch('users/updateUsersWithoutService', usersWithoutService)
  }

  /**
   *
   * @param {String} key - field name
   * @param {Any} value - updated data for selected user, send to server
   * @returns {Promise<Object>}
   */
  async setUserFields(key, value) {
    const selectedUser = this.store.getters['users/selectedUser']
    if (selectedUser) {
      selectedUser[key] = value
      this.store.dispatch('users/updateSelectedUser', selectedUser)
      return selectedUser
    }
  }

  /**
   *
   * @param {Number} serviceId - updated data for selected user, send to server
   * @returns {Promise<Object>}
   */
  async createUser(serviceId) {
    const selectedUser = this.store.getters['users/selectedUser']
    if (selectedUser && selectedUser.id && selectedUser.id === -1) {
      const users = this.store.getters['users/users']
      const userData = {...selectedUser,
        id: users.length + 1, // временно пока нет данных с сервера
        serviceId: [serviceId],
      }
      // const createdUser = await this.adapter.createUser(userData) // Запрос на создание нового пользователя
      // const updatedUsers = addedUser(createdUser, users)
      const updatedUsers = addedUser(userData, users)
      const usersWithService = usersWithThisService(serviceId, updatedUsers)
      const usersWithoutService = usersWithoutThisService(serviceId, updatedUsers)
      this.store.dispatch('users/updateUsers', updatedUsers)
      this.store.dispatch('users/updateUsersWithService', usersWithService)
      this.store.dispatch('users/updateUsersWithoutService', usersWithoutService)
    }
  }

  /**
   *
   * @returns {Promise<Object>}
   */
  async updateUser() {
    const selectedUser = this.store.getters['users/selectedUser']
    if (selectedUser && selectedUser.id) {
      // const updatedUser = await this.adapter.updateUser(selectedUser) // Запрос на обновление пользователя с новыми данными
      const users = this.store.getters['users/usersWithService']
      const updatedUsers = updatedUser(selectedUser, users)
      this.store.dispatch('users/updateUsersWithService', updatedUsers)
    }
  }

  /**
   *
   * @param {Number} selectedUserId
   * @param {Number} serviceId
   * @returns {Promise<Object>}
   */
  async deleteUserFromService(selectedUserId, serviceId) {
    // const deletedUser = await this.adapter.addUser(selectedUserId, serviceId) // Запрос на обновление пользователя с новым service_id???
    const users = this.store.getters['users/users']
    const updatedUsers = deleteServiceIdFromUser(selectedUserId, serviceId, users)
    const usersWithService = usersWithThisService(serviceId, updatedUsers)
    const usersWithoutService = usersWithoutThisService(serviceId, updatedUsers)
    this.store.dispatch('users/updateUsers', updatedUsers)
    this.store.dispatch('users/updateUsersWithService', usersWithService)
    this.store.dispatch('users/updateUsersWithoutService', usersWithoutService)
  }

  async resetStore() {
    this.store.dispatch('users/resetStore')
  }

}

export default UsersOfServices