module Eco
  module API
    class UseCases
      class DefaultCases
        class ChangeEMailCase < DefaultCase

          def process
            @cases.define("change-email", type: :sync) do |entries, people, session, options, usecase|
              remove      = session.job_group("main").new("remove account", usecase: usecase, type: :update, sets: :account)
              change      = session.job_group("main").new("change email", usecase: usecase, type: :update, sets: :core)
              add_account = session.job_group("post").new("add account", usecase: usecase, type: :update, sets: :account)

              strict_search = session.config.people.strict_search? && (!options[:search]&.key?(:strict) || options.dig(:search, :strict))

              entries.each.with_index do |entry, i|
                person = people.find(entry, strict: strict_search)

                if !person
                  session.logger.error("Entry(#{i}) - this person does not exist: #{entry.to_s(:identify)}")
                else
                  unless entry.email.downcase == person.email
                    account = person.account
                    person.account = nil
                    remove.add(person)

                    new_email = entry.email
                    change.add(person) do |person|
                      person.email = new_email
                    end

                    add_account.add(person) do |person|
                      person.account = account
                    end
                  end

                end
              end
            end
          end

        end
      end
    end
  end
end