# -*- encoding: utf-8 -*-
#
# Author:: Fletcher Nichol (<fnichol@nichol.ca>)
#
# Copyright (C) 2012, Fletcher Nichol
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

require_relative "../spec_helper"

require "kitchen"
require "kitchen/logging"
require "kitchen/collection"
require "kitchen/config"
require "kitchen/driver"
require "kitchen/instance"
require "kitchen/platform"
require "kitchen/provisioner"
require "kitchen/suite"
require "kitchen/transport"
require "kitchen/util"
require "kitchen/verifier"

module Kitchen
  class DummyLoader
    attr_writer :data

    def read
      @data || {}
    end
  end
end

describe Kitchen::Config do
  # Explicitly enable tty to test colorize default option later
  before do
    Kitchen.stubs(:tty?).returns(true)
  end

  let(:loader)  { Kitchen::DummyLoader.new }
  let(:config)  { Kitchen::Config.new(opts) }

  let(:opts) do
    {
      loader: loader,
      kitchen_root: "/tmp/that/place",
      log_root: "/tmp/logs",
      test_base_path: "/testing/yo",
      log_level: :debug,
      log_overwrite: false,
      colorize: false,
    }
  end

  let(:default_kitchen_config) do
    {
      defaults: {
        driver: "dummy",
        provisioner: "chef_solo",
        transport: "ssh",
        verifier: "busser",
      },
      kitchen_root: "/tmp/that/place",
      test_base_path: "/testing/yo",
      log_level: :debug,
      log_overwrite: false,
      colorize: false,
    }
  end

  describe "#loader" do
    it "returns its loader" do
      config.loader.must_equal loader
    end

    it "creates a Kitchen::Loader::YAML loader by default" do
      opts.delete(:loader)

      config.loader.must_be_kind_of Kitchen::Loader::YAML
    end
  end

  describe "#kitchen_root" do
    it "returns its kitchen root" do
      config.kitchen_root.must_equal "/tmp/that/place"
    end

    it "uses Dir.pwd by default" do
      opts.delete(:kitchen_root)

      config.kitchen_root.must_equal Dir.pwd
    end
  end

  describe "#log_root" do
    it "returns its log root" do
      config.log_root.must_equal "/tmp/logs"
    end

    it "calculates a default log root using kitchen_root" do
      opts.delete(:log_root)

      config.log_root.must_equal "/tmp/that/place/.kitchen/logs"
    end
  end

  describe "#test_base_path" do
    it "returns its base test path" do
      config.test_base_path.must_equal "/testing/yo"
    end

    it "calculates a default base using kitchen_root" do
      opts.delete(:test_base_path)

      config.test_base_path.must_equal "/tmp/that/place/test/integration"
    end
  end

  describe "#log_level" do
    it "returns its log level" do
      config.log_level.must_equal :debug
    end

    it "uses :info by default" do
      opts.delete(:log_level)

      config.log_level.must_equal :info
    end
  end

  describe "#log_overwrite" do
    it "returns its log level" do
      config.log_overwrite.must_equal false
    end

    it "uses :info by default" do
      opts.delete(:log_overwrite)

      config.log_overwrite.must_equal true
    end
  end

  describe "#colorize" do
    it "returns its colorize" do
      config.colorize.must_equal false
    end

    it "uses true by default" do
      opts.delete(:colorize)

      config.colorize.must_equal true
    end
  end

  describe "#platforms" do
    before do
      Kitchen::DataMunger.stubs(:new).returns(munger)
      Kitchen::Platform.stubs(:new).returns("platform")
    end

    let(:munger) do
      stub(
        platform_data: [{ one: "a" }, { two: "b" }]
      )
    end

    it "loader loads data" do
      loader.expects(:read).returns({})

      config.platforms
    end

    it "constructs a munger with loader data and defaults" do
      loader.stubs(:read).returns("datum")

      Kitchen::DataMunger.expects(:new).with do |data, kitchen_config|
        data.must_equal "datum"
        kitchen_config.is_a?(Hash).must_equal true
      end.returns(munger)

      config.platforms
    end

    it "platform_data is called on munger" do
      munger.expects(:platform_data).returns([])

      config.platforms
    end

    it "contructs Platform objects" do
      Kitchen::Platform.expects(:new).with(one: "a")
      Kitchen::Platform.expects(:new).with(two: "b")

      config.platforms
    end

    it "returns a Collection of platforms" do
      Kitchen::Platform.stubs(:new)
                       .with(one: "a").returns(stub(name: "one"))
      Kitchen::Platform.stubs(:new)
                       .with(two: "b").returns(stub(name: "two"))

      config.platforms.as_names.must_equal %w{one two}
    end
  end

  describe "#suites" do
    before do
      Kitchen::DataMunger.stubs(:new).returns(munger)
      Kitchen::Suite.stubs(:new).returns("suite")
    end

    let(:munger) do
      stub(
        suite_data: [{ one: "a" }, { two: "b" }]
      )
    end

    it "loader loads data" do
      loader.expects(:read).returns({})

      config.suites
    end

    it "constucts a munger with loader data and defaults" do
      loader.stubs(:read).returns("datum")

      Kitchen::DataMunger.expects(:new).with do |data, kitchen_config|
        data.must_equal "datum"
        kitchen_config.is_a?(Hash).must_equal true
      end.returns(munger)

      config.suites
    end

    it "platform_data is called on munger" do
      munger.expects(:suite_data).returns([])

      config.suites
    end

    it "contructs Suite objects" do
      Kitchen::Suite.expects(:new).with(one: "a")
      Kitchen::Suite.expects(:new).with(two: "b")

      config.suites
    end

    it "returns a Collection of suites" do
      Kitchen::Suite.stubs(:new)
                    .with(one: "a").returns(stub(name: "one"))
      Kitchen::Suite.stubs(:new)
                    .with(two: "b").returns(stub(name: "two"))

      config.suites.as_names.must_equal %w{one two}
    end
  end

  describe "#instances" do
    let(:platforms) do
      [stub(name: "unax")]
    end

    let(:suites) do
      [stub(name: "tiny", includes: [], excludes: [])]
    end

    let(:munger) do
      stub(
        driver_data_for: { "junk" => true },
        provisioner_data_for: { "junk" => true },
        transport_data_for: { "junk" => true },
        verifier_data_for: { "junk" => true }
      )
    end

    before do
      Kitchen::Instance.stubs(:new).returns("instance")
      Kitchen::Driver.stubs(:for_plugin).returns("driver")
      Kitchen::Provisioner.stubs(:for_plugin).returns("provisioner")
      Kitchen::Transport.stubs(:for_plugin).returns("transport")
      Kitchen::Verifier.stubs(:for_plugin).returns("verifier")
      Kitchen::Logger.stubs(:new).returns("logger")
      Kitchen::StateFile.stubs(:new).returns("state_file")

      Kitchen::DataMunger.stubs(:new).returns(munger)
      config.stubs(:platforms).returns(platforms)
      config.stubs(:suites).returns(suites)
    end

    it "constructs a Driver object" do
      munger.expects(:driver_data_for).with("tiny", "unax")
            .returns(name: "drivey", datum: "lots")
      Kitchen::Driver.unstub(:for_plugin)
      Kitchen::Driver.expects(:for_plugin)
                     .with("drivey", name: "drivey", datum: "lots")

      config.instances
    end

    it "constructs a Provisioner object" do
      munger.expects(:provisioner_data_for).with("tiny", "unax")
            .returns(name: "provey", datum: "lots")
      Kitchen::Provisioner.unstub(:for_plugin)
      Kitchen::Provisioner.expects(:for_plugin)
                          .with("provey", name: "provey", datum: "lots")

      config.instances
    end

    it "constructs a Transport object" do
      munger.expects(:transport_data_for).with("tiny", "unax")
            .returns(name: "transey", datum: "lots")
      Kitchen::Transport.unstub(:for_plugin)
      Kitchen::Transport.expects(:for_plugin)
                        .with("transey", name: "transey", datum: "lots")

      config.instances
    end

    it "constructs a Verifier object" do
      munger.expects(:verifier_data_for).with("tiny", "unax")
            .returns(name: "vervey", datum: "lots")
      Kitchen::Verifier.unstub(:for_plugin)
      Kitchen::Verifier.expects(:for_plugin)
                       .with("vervey", name: "vervey", datum: "lots")

      config.instances
    end

    it "constructs a Logger object" do
      Kitchen::Logger.unstub(:new)
      Kitchen::Logger.expects(:new).with(
        stdout: STDOUT,
        color: :cyan,
        logdev: "/tmp/logs/tiny-unax.log",
        log_overwrite: false,
        level: 0,
        progname: "tiny-unax",
        colorize: false
      )

      config.instances
    end

    it "constructs a StateFile object" do
      Kitchen::StateFile.unstub(:new)
      Kitchen::StateFile.expects(:new).with("/tmp/that/place", "tiny-unax")

      config.instances
    end

    it "constructs an Instance object from all built objects" do
      Kitchen::Instance.unstub(:new)

      Kitchen::Instance.expects(:new).with(
        driver: "driver",
        logger: "logger",
        suite: suites.first,
        platform: platforms.first,
        provisioner: "provisioner",
        transport: "transport",
        verifier: "verifier",
        state_file: "state_file"
      )

      config.instances
    end
  end

  describe "using Suite#includes" do
    it "selects only platforms in a suite's includes array" do
      config.stubs(:platforms).returns([
                                         stub(name: "good"),
                                         stub(name: "nope"),
                                         stub(name: "one"),
                                       ])
      config.stubs(:suites).returns([
                                      stub(name: "selecta", includes: %w{good one}, excludes: []),
                                      stub(name: "allem", includes: [], excludes: []),
                                    ])

      config.instances.as_names.must_equal [
        "selecta-good", "selecta-one", "allem-good", "allem-nope", "allem-one"]
    end
  end

  describe "using Suite#excludes" do
    it "selects only platforms in a suite's includes array" do
      config.stubs(:platforms).returns([
                                         stub(name: "good"),
                                         stub(name: "nope"),
                                         stub(name: "one"),
                                       ])
      config.stubs(:suites).returns([
                                      stub(name: "selecta", includes: [], excludes: ["nope"]),
                                      stub(name: "allem", includes: [], excludes: []),
                                    ])

      config.instances.as_names.must_equal [
        "selecta-good", "selecta-one", "allem-good", "allem-nope", "allem-one"]
    end
  end
end