module Ecoportal
  module API
    class V1
      # @attr_reader client [Common::Client] a `Common::Client` object that holds the configuration of the api connection.
      class People
        extend Common::BaseClass
        include Enumerable
        include Common::DocHelpers

        class_resolver :person_class,  "Ecoportal::API::V1::Person"

        attr_reader :client

        # @param client [Common::Client] a `Common::Client` object that holds the configuration of the api connection.
        # @return [People] an instance object ready to make people api requests.
        def initialize(client)
          @client = client
        end

        # Iterates all the people of the organization.
        # @note
        #   - it ignores the key `results_from:` of `params:`.
        #   - `each` is called by `to_a`
        # @param params [Hash]
        # @option params [String] :per_page the number of people you get per request.
        # @option params [String] :q some text to search. Omit this parameter to target all the people.
        # @yield [person] does some stuff with the person.
        # @yieldparam person [Person]
        def each(params: {}, &block)
          return to_enum(:each) unless block
          results_from = nil          
          loop do
            params.update(results_from: results_from) if results_from
            response = client.get("/people", params: params)
            raise "Request failed." unless response.success?
            response.body["results"].each do |person|
              yield person_class.new(person)
            end
            break unless (results_from = response.body["next_results_from"])
          end
          self
        end

        # Gets all the people via api requests.
        # @note it ignores the key `:page` in `params:`.
        # @param params [Hash]
        # @option params [Integer] :per_page the number of people you get per request.
        # @option params [String] :q some text to search.
        # @return [Array<Person>] the array of people got via api.
        def get_all(params: {})
          each(params: params).to_a
        end

        # Gets a person via api.
        # @note if the request has `success?` the returned `object.result` gives an object with that `Person`.
        # @param doc [String, Hash, Person] data containing an `id` (internal or external) of the target person.
        # @return [WrappedResponse] an object with the api response.
        def get(doc)
          response = client.get("/people/"+CGI::escape(get_id(doc)))
          Common::WrappedResponse.new(response, person_class)
        end

        # Requests an update of a person via api.
        # @param doc [Person, Hash] data that at least contains an `id` (internal or external) of the target person.
        # @return [Response] an object with the api response.
        def update(doc)
          body = get_body(doc)
          id   = get_id(doc)
          client.patch("/people/"+CGI::escape(id), data: body)
        end

        # Requests to create a person via api.
        # @param doc [Person, Hash] data that at least contains an `id` (internal or external) of the target person.
        # @return [Response] an object with the api response.
        def create(doc)
          body = get_body(doc)
          client.post("/people", data: body)
        end

        # Requests to update an existing person or if it does not exist, to create it, via api.
        # @param doc [Person, Hash] data that at least contains an `id` (internal or external) of the target person.
        # @return [Response] an object with the api response.
        def upsert(doc)
          body = get_body(doc)
          id   = get_id(doc)
          client.post("/people/"+CGI::escape(id), data: body)
        end

        # Requests to completelly remove from an organization an existing person via api.
        # @param doc [Person, Hash] data that at least contains an `id` (internal or external) of the target person.
        # @return [Response] an object with the api response.
        def delete(doc)
          id = get_id(doc)
          client.delete("/people/"+CGI::escape(id))
        end

        # Creates a `BatchOperation` and yields it to the given bock.
        # @yield [batch_op] adds multiple api requests for the current batch.
        # @yieldparam batch_op [BatchOperation]
        def batch
          operation = Common::BatchOperation.new("/people", person_class, logger: client.logger)
          yield operation
          # The batch operation is responsible for logging the output
          client.without_response_logging do
            client.post("/people/batch", data: operation.as_json).tap do |response|
              operation.process_response(response)
            end
          end
        end

        # Creates a new `Person` object.
        # @return [Person] new empty person object of the current version.
        def new
          person_class.new
        end

      end
    end
  end
end

require 'ecoportal/api/v1/schema_field_value'
require 'ecoportal/api/v1/person_details'
require 'ecoportal/api/v1/person'