require 'rails_helper'
require 'webmock/rspec'
require 'json'

RSpec.describe CreateAccount, type: :model do
  let(:ldap_client_mock) { instance_double(Net::LDAP) }

  before do
    allow(service).to receive(:ldap_client).and_return(ldap_client_mock)
  end

  describe "#create_user_in_database" do
    let(:service) { CreateAccount.new(
      username: 'isaacnewton',
      email: 'isaacnewton@example.com',
      password: 'bright-ideas-in-autumn'
    )}

    it "creates a new user record in the akkounts database" do
      expect(User.count).to eq(0)
      service.send(:create_user_in_database)
      expect(User.count).to eq(1)
      expect(User.last.cn).to eq("isaacnewton")
      expect(User.last.email).to eq("isaacnewton@example.com")
    end
  end

  describe "#update_invitation" do
    let(:invitation) { create :invitation }
    let(:service) { CreateAccount.new(
      username: 'isaacnewton',
      email: 'isaacnewton@example.com',
      password: 'bright-ideas-in-autumn',
      invitation: invitation
    )}

    before(:each) do
      service.send(:update_invitation, 23)
    end

    it "marks the invitation as used" do
      expect(invitation.used_at).not_to be_nil
    end

    it "saves the invited user's ID" do
      expect(invitation.invited_user_id).to eq(23)
    end
  end

  describe "#add_ldap_document" do
    let(:service) { CreateAccount.new(
      username: 'halfinney',
      email: 'halfinney@example.com',
      password: 'remember-remember-the-5th-of-november'
    )}

    it "creates a new document with the correct attributes" do
      expect(ldap_client_mock).to receive(:add).with(
        dn: "cn=halfinney,ou=kosmos.org,cn=users,dc=kosmos,dc=org",
        attributes: {
          objectclass: ["top", "account", "person", "extensibleObject"],
          cn: "halfinney",
          sn: "halfinney",
          uid: "halfinney",
          mail: "halfinney@example.com",
          userPassword: /^{SSHA512}.{171}=/
        }
      )

      service.send(:add_ldap_document)
    end
  end

  describe "#exchange_xmpp_contacts" do
    let(:inviter) { create :user, cn: "willherschel", ou: "kosmos.org" }
    let(:invitation) { create :invitation, user: inviter }
    let(:service) { CreateAccount.new(
      username: 'isaacnewton',
      email: 'isaacnewton@example.com',
      password: 'bright-ideas-in-autumn',
      invitation: invitation
    )}

    before do
      stub_request(:post, "http://xmpp.example.com/api/add_rosteritem")
        .to_return(status: 200, body: "", headers: {})
    end

    it "posts add_rosteritem commands to the ejabberd API" do
      service.send(:exchange_xmpp_contacts)

      expect(WebMock).to have_requested(:post, "http://xmpp.example.com/api/add_rosteritem")
        .with { |req| req.body == {
          localuser: "isaacnewton", localhost: "kosmos.org",
          user: "willherschel", host: "kosmos.org",
          nick: "willherschel", group: "Friends", subs: "both"
        }}
      expect(WebMock).to have_requested(:post, "http://xmpp.example.com/api/add_rosteritem")
        .with { |req| req.body == {
          localuser: "willherschel", localhost: "kosmos.org",
          user: "isaacnewton", host: "kosmos.org",
          nick: "isaacnewton", group: "Friends", subs: "both"
        }}
    end
  end
end