require 'db/mongo/models/deploy_env/deploy_env_ec2'
require_relative 'shared_deploy_env_specs'
require_relative 'shared_cloud_deploy_env_specs'

RSpec.describe Devops::Model::DeployEnvEc2, type: :model do
  let(:env) { build(:deploy_env_ec2) }

  describe 'it inherits from cloud deploy_env', stubbed_connector: true, stubbed_logger: true do
    before do
      provider_double = instance_double('Provider::Ec2',
        flavors: [{'id' => 'flavor'}],
        networks: [{'default' => {'vpcId' => 'foo'}}],
        groups: {'default' => nil},
        images: [{'id' => 'image'}]
      )
      allow(Provider::ProviderFactory).to receive(:providers) { %w(ec2) }
      allow(Provider::ProviderFactory).to receive(:get) { provider_double }
      allow(stubbed_connector).to receive(:users_names) { %w(root) }
      allow(stubbed_connector).to receive(:available_images) { %w(image) }
      allow(stubbed_connector).to receive(:stack_templates) { [build(:stack_template_ec2, id: 'template')] }
    end

    it_behaves_like 'deploy env'
    it_behaves_like 'cloud deploy env'

    it 'raises Devops::NonExistingUser when passing non existing user' do
      env = build(:deploy_env_ec2, users: %w(wrong))
      expect {
        env.validate!
      }.to raise_error Devops::NonExistingUser
    end

    it "isn't valid if provider_account isn't present" do
      allow(stubbed_connector).to receive(:provider_accounts) do |provider|
        if provider == 'ec2'
          account_name = 'ec2_account'
        else
          account_name = 'static_account'
        end
        [Provider::ProviderFactory.get_account_class(provider).new('account_name' => account_name)]
      end
      env.provider_account = 'static_account'
      expect(env).not_to be_valid
      env.provider_account = 'ec2_account'
      expect(env).to be_valid
    end
  end

  describe '#initialize' do
    it 'keep only first subnet in given array' do
      env = described_class.new('subnets' => %w(foo bar))
      expect(env.subnets).to match_array(%w(foo))
    end
  end

  describe '.create' do
    it 'returns instance of DeployEnvEc2' do
      expect(described_class.create({})).to be_an_instance_of(described_class)
    end
  end

  describe '#subnets_filter' do
    before do
      allow_any_instance_of(described_class).to receive_message_chain('provider_instance.networks') {
        [{'name' => 'foo', 'vpcId' => 'bar'}]
      }
    end

    it 'returns nil if #subnets are empty' do
      expect(build(:deploy_env_ec2, subnets: []).subnets_filter).to be_nil
    end

    context "when provider has env's network" do
      it 'returns hash with vpcId of that network' do
        env = build(:deploy_env_ec2, subnets: ['foo'])
        expect(env.subnets_filter).to eq({'vpc-id' => 'bar'})
      end
    end

    context "when provider hasn't env's network" do
      it 'returns nil' do
        env = build(:deploy_env_ec2, subnets: ['wrong'])
        expect(env.subnets_filter).to be nil
      end
    end
  end

end