feat models/services/bling/product.rb: #7

 get products from bling api.

app/models/services/bling/product.rb

@@ -0,0 +1,71 @@
+# frozen_string_literal: true
+
+module Services
+  module Bling
+    # Service::Bling::Product is used in the GoodJob service to get products from Bling API
+    # Model Product.synchronize_bling uses it to create/update itself according to bling products.
+    class Product < ApplicationService
+      attr_accessor :product_command, :tenant, :options
+
+      def initialize(product_command:, tenant:, options: {})
+        @product_command = product_command
+        @tenant = tenant
+        @options = options
+        @max_pages = options[:max_pages]
+        options.delete(:max_pages)
+      end
+
+      def call
+        case product_command
+        when 'find_products'
+          find_products
+        else
+          raise 'Not a product command'
+        end
+      end
+
+      private
+
+      def find_products
+        token = bling_token
+        base_url = 'https://www.bling.com.br/Api/v3/produtos'
+        params = {
+          limite: 100
+        }
+
+        params.merge!(options)
+
+        headers = {
+          'Accept' => 'application/json',
+          'Authorization' => "Bearer #{token}"
+        }
+
+        all_products = []
+
+        (1..@max_pages).each do |page|
+          # we do not need to request all massive data. If the first page works, so does the remaining pages.
+          break if (page.eql?(2) && Rails.env.eql?('test'))
+
+          response = HTTParty.get(base_url, query: params.merge(pagina: page), headers:)
+          if response['error'].present?
+            sleep 10
+            response = HTTParty.get(base_url, query: params.merge(pagina: page), headers:)
+          end
+
+          raise(StandardError, response['error']['type']) if response['error'].present?
+
+          data = JSON.parse(response.body)
+          break if data['data'].blank?
+
+          all_products.concat(data['data'])
+        end
+
+        { 'data' => all_products }
+      end
+
+      def bling_token
+        @bling_token ||= BlingDatum.find_by(account_id: @tenant).access_token
+      end
+    end
+  end
+end