module Ecoportal
  module API
    class V2
      # @attr_reader client [Common::Client] a `Common::Client` object that holds the configuration of the api connection.
      class Registers
        extend Common::BaseClass
        include Enumerable
        include Common::Content::DocHelpers

        class_resolver :register_class,  "Ecoportal::API::V2::Registers::Register"
        class_resolver :register_search_result_class, "Ecoportal::API::V2::Registers::PageResult"
        class_resolver :register_search_results, "Ecoportal::API::V2::Registers::SearchResults"

        attr_reader :client

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

        def each(params: {}, &block)
          return to_enum(:each) unless block
          get.each(&block)
        end

        # Gets all the registers via api request.
        # @return [Enumerable<Register>] an `Enumerable` with all schemas already wrapped as `Register` objects.
        def get
          response = client.get("/templates")
          Common::Content::WrappedResponse.new(response, register_class, key: "registers")
        end

        # Gets all the oozes/pages of `register_id` matching the `options`
        # @param register_id [String] the `id` of the target register to search on.
        # @param options [Hash] the search options
        # @option options [Hash<Symbol, String>] :query plain search (like the search box in register).
        # @option options [Hash<Symbol, Array<Object>>] :filters the set of filters.
        # @option options [Boolean] if `true`, it only performs the first search and results `Ecoportal::API::V2::Registers::SearchResults`.
        # @yield [result]  something to do with search page-result.
        # @yieldparam result [Ecoportal::V2::Registers::PageResult] a page result.
        # @return [Ecoportal::API::V2::Registers, Ecoportal::API::V2::Registers::SearchResults]
        def search(register_id, options = {})
          only_first = options.delete(:only_first)
          # supply a query string
          # or a filter array (copy/paste from dev tools in the browser)
          options = {query: nil, filters: []}.update(options)
          options = {}.tap do |ret|
            options.each do |key, value|
              if key == :filters && value.any?
                ret[key] = {filters: value}.to_json
              else
                ret[key] = value if key
              end
            end
          end

          if only_first
            response = client.get("/registers/#{register_id}/search", params: options)
            raise "Request failed - Status #{response.status}: #{response.body}" unless response.success?
            return register_search_results.new(response.body["data"])
          end

          cursor_id = nil
          results = 0
          loop do
            options.update(cursor_id: cursor_id) if cursor_id
            response = client.get("/registers/#{register_id}/search", params: options)
            raise "Request failed - Status #{response.status}: #{response.body}" unless response.success?

            data = response.body["data"]
            unless (total = data["total"]) == 0
              results += data["results"].length
              percent  = results * 100 / total
              msg      = "Registers SEARCH"
              print "#{msg}: #{percent.round}% (of #{total})\r"
              $stdout.flush
            end

            data["results"].each do |result|
              object = register_search_result_class.new(result)
              yield object
            end

            # break unless (cursor_id = data["cursor_id"])
            break if total == results
          end
          self
        end


      end
    end
  end
end

require 'ecoportal/api/v2/registers/template'
require 'ecoportal/api/v2/registers/register'
require 'ecoportal/api/v2/registers/stage_result'
require 'ecoportal/api/v2/registers/stages_result'
require 'ecoportal/api/v2/registers/page_result'
require 'ecoportal/api/v2/registers/search_results'