module Eco
  module API
    class MicroCases
      # Detects who in the `entries` is new in the organization and `yield` s them one by one to the given block.
      # @note
      #   - it also links to `person.entry` the input data `entry`.
      # @param entries [Eco::API::Common::People::Entries] the input entries with the data.
      # @param people [Eco::API::Organization::People] target existing _People_ of the current update.
      # @param options [Hash] the options.
      # @param log_present [Boolean] log error message if an `entry` has match in `people`.
      # @param append_created [Boolean] whether or not a new person will be added to the `people` object.
      # @yield [entry, person] gives each **new** `person` of `entries` that is not present in `people`.
      # @yieldparam entry [PersonEntry] the input entry with the data we should set on person.
      # @yieldparam person [Ecoportal::API::V1::Person] the **new** person.
      # @return [Eco::API::Organization::People] the starters.
      def with_each_starter(entries, people, options, log_present: false, append_created: true)
        starters = []
        micro.with_each(entries, people, options, append_created: append_created) do |entry, person|
          unless person.new?
            if log_present
              log(:error) {
                "This person (id: '#{person.id}') already exists: #{entry.to_s(:identify)}"
              }
            end

            next
          end

          starters << person
          yield(entry, person) if block_given?
        end

        people.newFrom starters
      end
    end
  end
end