module Maestrano::Connector::Rails::Concerns::Organization
  extend ActiveSupport::Concern

  included do
    # Enable Maestrano for this group
    maestrano_group_via :provider, :uid, :tenant do |group, maestrano|
      group.name = (maestrano.name.blank? ? 'Default Group name' : maestrano.name)
      group.tenant = 'default' # To be set from SSO parameter
      group.org_uid = maestrano.org_uid # Maestrano organization UID

      # group.country_alpha2 = maestrano.country
      # group.free_trial_end_at = maestrano.free_trial_end_at
      # group.some_required_field = 'some-appropriate-default-value'
    end

    # Callbacks
    before_save :update_metadata

    #===================================
    # Encryptions
    #===================================
    attr_encrypted_options[:mode] = :per_attribute_iv_and_salt
    attr_encrypted :oauth_token, key: ::Settings.encryption_key1
    attr_encrypted :refresh_token, key: ::Settings.encryption_key2

    #===================================
    # Associations
    #===================================
    has_many :user_organization_rels
    has_many :users, through: :user_organization_rels
    has_many :id_maps, dependent: :destroy
    has_many :synchronizations, dependent: :destroy

    #===================================
    # Validation
    #===================================
    validates :name, presence: true
    validates :tenant, presence: true
    validates :uid, uniqueness: {scope: :tenant}
    validates :oauth_uid, uniqueness: {allow_blank: true, message: 'This account has already been linked'}

    #===================================
    # Serialized field
    #===================================
    serialize :synchronized_entities
  end

  module ClassMethods
  end

  def initialize
    super
    self.synchronized_entities = {}
    Maestrano::Connector::Rails::External.entities_list.each do |entity|
      synchronized_entities[entity.to_sym] = {can_push_to_connec: !pull_disabled, can_push_to_external: !push_disabled}
    end
  end

  def displayable_synchronized_entities
    result = {}
    synchronized_entities.each do |entity, hash|
      begin
        clazz = "Entities::#{entity.to_s.titleize.split.join}".constantize
      rescue
        next
      end
      result[entity] = {connec_name: clazz.public_connec_entity_name, external_name: clazz.public_external_entity_name}.merge(hash)
    end
    result
  end

  def add_member(user)
    user_organization_rels.create(user: user) if tenant == user.tenant && !member?(user)
  end

  def member?(user)
    user_organization_rels.where(user_id: user.id).count.positive?
  end

  def remove_member(user)
    user_organization_rels.where(user_id: user.id).delete_all
  end

  def from_omniauth(auth)
    self.oauth_provider = auth.provider
    self.oauth_uid = auth.uid
    self.oauth_token = auth.credentials.token
    self.refresh_token = auth.credentials.refresh_token
    self.instance_url = auth.credentials.instance_url
    save
  end

  def clear_omniauth
    self.oauth_uid = nil
    self.oauth_token = nil
    self.refresh_token = nil
    self.sync_enabled = false
    save
  end

  # Enable historical data sharing (prior to account linking)
  def enable_historical_data(enabled)
    # Historical data sharing cannot be unset
    return if historical_data
    if enabled
      self.date_filtering_limit = nil
      self.historical_data = true
    else
      self.date_filtering_limit ||= Time.now.getlocal
    end
  end

  def last_three_synchronizations_failed?
    arr = synchronizations.last(3).map(&:error?)
    arr.count == 3 && arr.uniq == [true]
  end

  def last_successful_synchronization
    synchronizations.where(status: 'SUCCESS', partial: false).order(updated_at: :desc).first
  end

  def last_synchronization_date
    last_successful_synchronization&.updated_at || date_filtering_limit
  end

  def reset_synchronized_entities(default = false)
    synchronized_entities.slice!(*Maestrano::Connector::Rails::External.entities_list.map(&:to_sym))
    Maestrano::Connector::Rails::External.entities_list.each do |entity|
      if synchronized_entities[entity.to_sym].is_a?(Hash)
        can_push_to_external = synchronized_entities[entity.to_sym][:can_push_to_external]
        can_push_to_connec = synchronized_entities[entity.to_sym][:can_push_to_connec]
      else
        can_push_to_external = synchronized_entities[entity.to_sym]
        can_push_to_connec = synchronized_entities[entity.to_sym]
      end
      synchronized_entities[entity.to_sym] = {can_push_to_connec: (can_push_to_connec || default) && !pull_disabled, can_push_to_external: (can_push_to_external || default) && !push_disabled}
    end
    save
  end

  def push_to_connec_enabled?(entity)
    synchronized_entities.dig(Maestrano::Connector::Rails::EntityHelper.snake_name(entity), :can_push_to_connec) && entity&.class&.can_write_connec?
  end

  def push_to_external_enabled?(entity)
    synchronized_entities.dig(Maestrano::Connector::Rails::EntityHelper.snake_name(entity), :can_push_to_external) && entity&.class&.can_write_external?
  end

  def set_instance_metadata
    auth = {username: Maestrano[tenant].param('api.id'), password: Maestrano[tenant].param('api.key')}
    res = HTTParty.get("#{Maestrano[tenant].param('api.host')}/api/v1/account/groups/#{uid}", basic_auth: auth)
    response = JSON.parse(res.body)
    self.push_disabled = response.dig('data', 'metadata', 'push_disabled')
    self.pull_disabled = response.dig('data', 'metadata', 'pull_disabled')
  end

  def update_metadata
    set_instance_metadata
    enable_historical_data(true) if push_disabled
  end
end