require 'spec_helper'

describe Deplomat::Node do

  before(:each) do
    @fixtures_dir = Dir.pwd + "/spec/fixtures"
    @node = Deplomat::Node.new(logfile: "#{@fixtures_dir}/deplomat.log", log_to: [:file, :stdout])
  end

  it "checks if file exists" do
    expect(@node.file_exists?("#{@fixtures_dir}/existing_file.txt")).to be_falsey
    expect(@node.file_exists?("/non-existent-path")).to be_falsey
    FileUtils.touch("#{@fixtures_dir}/existing_file.txt")
    expect(@node.file_exists?("#{@fixtures_dir}/existing_file.txt")).to be_truthy
    FileUtils.rm("#{@fixtures_dir}/existing_file.txt")
  end

  describe "logging" do

    after(:each) do
      @node.log_to = []
      @node.remove("#{@fixtures_dir}/deplomat.log")
    end

    it "logs to the stdout" do
      expect($stdout).to receive(:print).exactly(4).times
      @node.execute("ls #{@fixtures_dir}/dir1")
    end

    it "logs to a log file" do
      @node.log_to = [:file]
      @node.execute("ls #{@fixtures_dir}/dir1")
      log = File.readlines("#{@fixtures_dir}/deplomat.log")
      expect(log.size).to eq(4)
    end

    it "puts additional messages into the terminal when required" do
      expect($stdout).to receive(:print).once.with("hello\n".white)
      expect($stdout).to receive(:print).once.with("--> ls #{@fixtures_dir}/dir1\n".white)
      expect($stdout).to receive(:print).once.with("  file1\n".light_black)
      expect($stdout).to receive(:print).once.with("  file2\n".light_black)
      expect($stdout).to receive(:print).once.with("  subdir1\n".light_black)
      expect($stdout).to receive(:print).once.with("bye\n".white)
      @node.execute("ls #{@fixtures_dir}/dir1", message: ["hello", "bye"])
    end

    it "updates requisite counter" do

      requisites_counter_fn = "#{Dir.pwd}/spec/.deployment_requisites_counter"
      @node.cd Dir.pwd + "/spec"

      File.open(requisites_counter_fn, "w") { |f| f.puts 1 }
      @node.update_requisite_number!(2)
      expect(File.readlines(requisites_counter_fn).first.to_i).to eq(2)

      expect(-> { @node.update_requisite_number!(1) }).to raise_exception(Deplomat::RequisitesNumberError)

      File.unlink(requisites_counter_fn)
      expect(-> { @node.update_requisite_number!(3) }).to raise_exception(Deplomat::RequisitesNumberError)
    end

  end

end