# encoding: utf-8

# Attempt to load rails so that we can determine the proper sub-installer to use.
begin
  require "rails"
rescue LoadError
end

require "timber/cli/api"
require "timber/cli/installer"
require "timber/cli/installers/other"
require "timber/cli/installers/rails"
require "timber/cli/io/messages"
require "timber/cli/os_helper"
require "timber/log_devices/http"
require "timber/logger"

module Timber
  class CLI
    module Installers
      # The root installer is the primary installer that is instantiated and
      # run when the installer starts. It is responsible for instantiating
      # the proper sub installers that install Timber in specific frameworks
      # and environments.
      class Root < Installer
        def run(app)
          io.puts IO::Messages.application_details(app)
          io.puts ""

          case io.ask_yes_no("Are the above details correct?", event_prompt: "App details correct?")
          when :yes
            install_platform(app)
            run_sub_installer(app)
            send_test_messages
            confirm_log_delivery
            wrap_up(app)
            api.event(:success)
            collect_feedback
            free_data

          when :no
            io.puts ""
            io.puts "Bummer. Head to this URL to update the details:"
            io.puts ""
            io.puts "    #{IO::Messages.edit_app_url(app)}", :blue
            io.puts ""
            io.puts "exiting..."
          end
        end

        private
          def install_platform(app)
            if app.heroku?
              io.puts ""
              io.puts IO::Messages.separator
              io.puts ""
              io.puts IO::Messages.heroku_install(app)
              io.puts ""
              io.ask_to_proceed
            end

            true
          end

          def run_sub_installer(app)
            sub_installer = get_sub_installer
            sub_installer.run(app)
          end

          def get_sub_installer
            if defined?(::Rails)
              Rails.new(io, api)
            else
              Other.new(io, api)
            end
          end

          def send_test_messages
            task_message = "Sending test logs"
            io.task(task_message) do
              http_device = LogDevices::HTTP.new(api.api_key)
              logger = Logger.new(http_device)
              logger.info("Welcome to Timber!")
              logger.info("This is a test log to ensure the pipes are working")
              logger.info("Be sure to commit and deploy your app to start seeing real logs")
              # Close flushes and waits
              http_device.close
            end
          end

          def confirm_log_delivery
            task_message = "Confirming log delivery"

            io.task(task_message) do
              api.wait_for_logs do |iteration|
                io.write IO::Messages.task_start(task_message), :blue
                io.write IO::Messages.spinner(iteration), :blue
              end
            end
          end

          def wrap_up(app)
            if app.development? || app.test?
              development_note
            else
              assist_with_commit_and_deploy
            end
          end

          def development_note
            io.puts ""
            io.puts IO::Messages.separator
            io.puts ""
            io.puts "All done! Simply run your application locally and you'll see logs"
            io.puts "show up in Timber. Enjoy!"
            io.puts ""
            io.puts "When you're ready to move to production/staging, create a"
            io.puts "production/staging app in Timber and follow the instructions shown."
            io.puts ""
            io.ask_to_proceed
          end

          def assist_with_commit_and_deploy
            io.puts ""
            io.puts IO::Messages.separator
            io.puts ""

            if OSHelper.has_git?
              case io.ask_yes_no("All done! Would you like to commit these changes?", event_prompt: "Run git commands?")
              when :yes
                io.puts ""

                task_message = "Committing changes via git"
                io.task_start(task_message)

                committed = OSHelper.git_commit_changes

                if committed
                  io.task_complete(task_message)
                else
                  io.task_failed(task_message)

                  io.puts ""
                  io.puts "Bummer, it looks like we couldn't access the git command.", :yellow
                  io.puts "No problem though, just run these commands yourself:", :yellow
                  io.puts ""
                  io.puts IO::Messages.git_commands
                end
              when :no
                io.puts ""
                io.puts "No problem. Here's the commands for reference when you're ready:"
                io.puts ""
                io.puts IO::Messages.git_commands
              end
            else
              io.puts ""
              io.puts "All done! Commit your changes:"
              io.puts ""
              io.puts IO::Messages.git_commands
            end

            io.puts ""
            io.puts "=> Reminder: remember to deploy 🚀 to see logs in staging/production", :yellow
          end

          def collect_feedback
            io.puts ""
            io.puts IO::Messages.separator
            io.puts ""

            rating = io.ask("How would rate this install experience? 1 (bad) - 5 (perfect)", ["1", "2", "3", "4", "5"])

            case rating
            when "4", "5"
              api.event(:feedback, rating: rating.to_i)
              io.puts ""
              io.puts IO::Messages.we_love_you_too

            when "1", "2", "3"
              io.puts ""
              io.puts IO::Messages.bad_experience_message
              io.puts ""
              io.puts "Type your comments below (enter sends)"
              io.puts ""

              comments = io.gets

              api.event(:feedback, rating: rating.to_i, comments: comments)

              io.puts ""
              io.puts "Thank you! We take feedback seriously and will work to improve this."
            end
          end

          def free_data
            io.puts ""
            io.puts IO::Messages.separator
            io.puts ""
            io.puts IO::Messages.free_data
            io.puts ""
          end
      end
    end
  end
end