require 'spec_helper'

describe SimpleDeploy do
  let(:config_data) do
    { 'environments' => {
        'test_env' => {
          'secret_key' => 'secret',
          'access_key' => 'access',
          'region'     => 'us-west-1'
      } },
      'notifications' => {
        'campfire' => {
          'token' => 'my_token'
      } } }
  end

  describe 'new' do
    it 'should accept config data as an argument' do
      YAML.should_not_receive(:load)

      @config = SimpleDeploy::Config.new :config => config_data
      @config.config.should == config_data
    end

    it 'should load the config from ~/.simple_deploy.yml by default' do
      File.should_receive(:open).with("#{ENV['HOME']}/.simple_deploy.yml").
                                 and_return(config_data.to_yaml)
      @config = SimpleDeploy::Config.new
      @config.config.should == config_data
    end

    it 'should load the config from SIMPLE_DEPLOY_CONFIG_FILE if supplied' do
      File.should_receive(:open).with("/my/config/file").
                                 and_return(config_data.to_yaml)
      env_mock = mock 'env'
      SimpleDeploy::Env.stub :new => env_mock
      env_mock.should_receive(:load).
               with('SIMPLE_DEPLOY_CONFIG_FILE').
               and_return "/my/config/file"
      @config = SimpleDeploy::Config.new
      @config.config.should == config_data
    end

  end

  describe "after creating a configuration" do
    before do
      @config = SimpleDeploy::Config.new :config => config_data
    end

    it "should return the default artifacts to deploy" do
      @config.artifacts.should == ['chef_repo', 'cookbooks', 'app']
    end

    it "should return the APP_URL for app" do
      @config.artifact_deploy_variable('app').should == 'APP_URL'
    end

    it "should return the Cloud Formation camel case variables" do
      @config.artifact_cloud_formation_url('app').should == 'AppArtifactURL'
    end

    it "should return the environment requested" do
      @config.environment('test_env').should == ({ 'secret_key' => 'secret', 'access_key' => 'access', 'region' => 'us-west-1' })
    end

    it "should return the notifications available" do
      @config.notifications.should == ( { 'campfire' => { 'token' => 'my_token' } } )
    end

    it "should return the region for the environment" do
      @config.region('test_env').should == 'us-west-1'
    end

    it "should return the deploy script" do
      @config.deploy_script.should == '/opt/intu/admin/bin/configure.sh'
    end

  end

  describe "gracefully handling yaml file errors" do
    before do
      if File.exists? "#{ENV['HOME']}/.simple_deploy.yml"
        FileUtils.mv("#{ENV['HOME']}/.simple_deploy.yml",
                     "#{ENV['HOME']}/.simple_deploy.yml.bak")
      end
    end

    after do
      if File.exists? "#{ENV['HOME']}/.simple_deploy.yml.bak"
        FileUtils.mv("#{ENV['HOME']}/.simple_deploy.yml.bak",
                     "#{ENV['HOME']}/.simple_deploy.yml")
      end
    end

    it "should handle a missing file gracefully" do
      expect {
        config = SimpleDeploy::Config.new
      }.to raise_error(RuntimeError, "#{ENV['HOME']}/.simple_deploy.yml not found")
    end

    it "should handle a corrupt file gracefully" do
      s = "--\nport:\t80\t80"
      File.open("#{ENV['HOME']}/.simple_deploy.yml", 'w') do |out|
        out.write(s)
      end

      expect {
        config = SimpleDeploy::Config.new
      }.to raise_error(RuntimeError, "#{ENV['HOME']}/.simple_deploy.yml is corrupt")
      FileUtils.rm "#{ENV['HOME']}/.simple_deploy.yml"
    end
  end
end