# frozen_string_literal: true

require "json"
require "terminal-table"

require_relative "base"

module Neetob
  class CLI
    module Heroku
      module ConfigVars
        class Audit < Base
          attr_accessor :apps, :expected_config_vars_json_file_path, :sandbox

          def initialize(apps, expected_config_vars_json_file_path = "", sandbox = false)
            super()
            @apps = apps
            @expected_config_vars_json_file_path = expected_config_vars_json_file_path
            @sandbox = sandbox
          end

          def run
            matching_apps = find_all_matching_apps_or_repos(apps, :heroku, sandbox)
            table_rows = []
            expected_config = read_json_file(expected_config_vars_json_file_path || default_config_vars_json_file_path)
            return unless expected_config

            matching_apps.each do |app|
              actual_config = `heroku config -a #{app} --json`
              unless $?.success?
                ui.error("There is a problem in accessing the app with name \"#{app}\" in your account.")
                ui.error("Please check the specified app name and ensure you're authorized to view that app.")
                next
              end

              actual_config_json = JSON.parse(actual_config)
              table_rows.concat(compare_config_and_build_rows(app, expected_config, actual_config_json))
            end
            table = Terminal::Table.new headings: ["App", "Config var", "Expected", "Result"], rows: table_rows
            ui.success(table)
          end

          private

            def compare_config_and_build_rows(app, expected_config, actual_config)
              expected_config.map do |key, val|
                row = [app, key.to_s]
                row << (value_set_dynamically_by_heroku?(val) ? "Heroku has dynamically set the value" : val.to_s)
                row << (actual_config[key] == val ? "✅" : (actual_config[key] || "No such key"))
              end
            end

            def value_set_dynamically_by_heroku?(value)
              value == { "isDynamic" => true }
            end

            def default_config_vars_json_file_path
              File.expand_path("../../../../../data/config-vars-audit.json", __dir__)
            end
        end
      end
    end
  end
end