require 'bundler/inline'

gemfile(true) do
  source 'https://rubygems.org'

  gem 'activeadmin', ENV['ACTIVE_ADMIN_PATH'] ? {path: ENV['ACTIVE_ADMIN_PATH'], require: false} : {github: 'activeadmin/activeadmin', require: false}
  gem 'rails', '~> 5.1.0'
  gem 'sass-rails'
  gem 'sqlite3', platform: :mri
  gem 'activerecord-jdbcsqlite3-adapter', "~> 51.0", platform: :jruby
end

require 'active_record'

ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :agents, force: true do |t|
    t.string :full_name
  end

  create_table :agents_clients, force: true do |t|
    t.bigint :agent_id, null: false
    t.bigint :client_id, null: false
  end

  create_table :clients, force: true do |t|
    t.string :name
  end
end

require 'action_controller/railtie'
require 'action_view/railtie'
require 'active_admin'

class TestApp < Rails::Application
  config.root = __dir__
  secrets.secret_token = 'secret_token'
  secrets.secret_key_base = 'secret_key_base'

  config.eager_load = false
  Rails.logger = config.logger = Logger.new($stdout)
end

class ApplicationController < ActionController::Base
  include Rails.application.routes.url_helpers
end

class Client < ActiveRecord::Base
  has_and_belongs_to_many :agents
  validates :agents, presence: true
end

class Agent < ActiveRecord::Base
  has_and_belongs_to_many :clients
end

ActiveAdmin.setup do |config|
  config.authentication_method = false
  config.current_user_method = false
end

Rails.application.initialize!

ActiveAdmin.register Client do
  permit_params agent_ids: []
  
  form do |f|
    f.input :agents, as: :check_boxes
  end
end

Rails.application.routes.draw do
  ActiveAdmin.routes(self)
end

require 'minitest/autorun'
require 'rack/test'

class HabtmTest < ActionDispatch::IntegrationTest
  def test_clients
    Agent.create! full_name: 'John Doe'
    Client.create! name: 'ACME', agents: [Agent.first]

    patch admin_client_url(Client.first), params: {client: {agent_ids: []}}
    assert_response :success
    assert_select "p.inline-errors", "can't be blank"
    assert_equal 1, Client.first.agents.count
  end

  private

  def app
    Rails.application
  end
end