Services

app/controllers/pokemons_controller.rb

@@ -4,12 +4,12 @@ class PokemonsController < ApplicationController
   before_action :authenticate_user!
 
   def create
-   @pokemon = Pokemon.new(pokemon_params)
-   if @pokemon.save
-     render json: @pokemon, status: :created
-   else
-     render json: @pokemon.errors, status: :unprocessable_entity
-   end
+    @pokemon = Pokemon.new(pokemon_params)
+    if @pokemon.save
+      render json: @pokemon, status: :created
+    else
+      render json: @pokemon.errors, status: :unprocessable_entity
+    end
   end
 
   def search
@@ -21,38 +21,37 @@ def list
     render json: Pokemon.all
   end
 
- def update
-   if @pokemon.update(pokemon_params)
-     render json: @pokemon
-   else
-     render json: @pokemon.errors, status: :unprocessable_entity
-   end
- end
+  def update
+    if @pokemon.update(pokemon_params)
+      render json: @pokemon
+    else
+      render json: @pokemon.errors, status: :unprocessable_entity
+    end
+  end
 
- def destroy
-   @pokemon.destroy
-   render json: { message: 'Pokemon was successfully destroyed.' }
- end
+  def destroy
+    @pokemon.destroy
+    render json: { message: 'Pokemon was successfully destroyed.' }
+  end
 
- def fetch_all_pokemon_data
-   response = HTTParty.get("#{POKEMON_API}?limit=10000")
-   if response.code == 200
-     render json: JSON.parse(response.body)
-   end
- end
+  def fetch_all_pokemon_data
+    response = pokemons_service.all_pokemons
+    render json: response
+  end
 
- def species
-   name = params[:name]
-   data = fetch_pokemon_species_data(name)
-   if data[:error]
-     render json: { error: data[:error] }, status: :not_found
-   else
-     description = find_english_description(data)
-     render json: { description: description }
-   end
- end
+  def species
+    name = params[:name]
+    data = fetch_pokemon_species_data(name)
+    if data[:error]
+      render json: { error: data[:error] }, status: :not_found
+    else
+      description = find_english_description(data)
+      render json: { description: description }
+    end
+  end
 
   private
+
   def fetch_pokemon_data(pokemon_name)
     response = HTTParty.get("#{POKEMON_API}/#{pokemon_name}")
     if response.code == 200
@@ -87,4 +86,8 @@ def set_pokemon
   def pokemon_params
     params.require(:pokemon).permit(:nome, :tipo, :imagem, moves: [])
   end
+
+  def pokemons_service
+    PokemonsService.new(PokemonsApiRepository.new)
+  end
 end

app/presenters/pokemons_presenter.rb

@@ -0,0 +1,12 @@
+class PokemonsPresenter
+    def initialize(pokemon)
+      @pokemon = pokemon
+    end
+
+    def as_json
+      {
+        name: @pokemon.nome,
+        url: @pokemon.imagem
+      }
+    end
+  end

app/repositories/pokemons_api_repository.rb

@@ -0,0 +1,17 @@
+class PokemonsApiRepository
+  POKEMON_API = "https://pokeapi.co/api/v2/pokemon"
+
+  attr_reader :url, :limit
+
+  def initialize(limit = 10000)
+    @url = POKEMON_API
+    @limit = limit
+  end
+
+  def fetch_all_as_json
+    response = HTTParty.get("#{url}?limit=#{limit}")
+    if response.code == 200
+      response.body
+    end
+  end
+end

app/repositories/pokemons_repository.rb

@@ -0,0 +1,30 @@
+class PokemonsRepository
+  require_relative "../presenters/pokemons_presenter"
+
+  def initialize(model = Pokemon)
+    @model = model
+    @presenter = ::PokemonsPresenter
+  end
+
+  def fetch_all_as_json
+    pokemons = all
+    {
+      count: pokemons.count,
+      next: nil,
+      previous: nil,
+      results: pokemons.map { |pokemon| @presenter.new(pokemon).as_json },
+    }.to_json
+  end
+
+  def all
+    @model.all
+  end
+
+  def find_by_name(name)
+    @model.find_by(nome: name)
+  end
+
+  def find_by_id(id)
+    @model.find(id)
+  end
+end

app/services/pokemons_service.rb

@@ -0,0 +1,11 @@
+class PokemonsService
+
+  def initialize(repository = PokemonsRepository.new)
+    @repository = repository
+  end
+
+  def all_pokemons
+    JSON.parse(@repository.fetch_all_as_json)
+  end
+
+end