Toying

Gemfile

@@ -5,8 +5,11 @@ ruby '2.6.3'
 gem 'rails', '~> 5.2.3'
 gem 'puma', '~> 3.11'
 gem 'bootsnap', '>= 1.1.0', require: false
+gem 'rack-cors', '~> 0.3.1'
 gem 'rspotify'
 gem 'pg', '~> 1.1', '>= 1.1.4'
+gem 'active_model_serializers', '~> 0.10.8'
+gem 'kaminari'
 
 group :development, :test do
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]

Gemfile.lock

@@ -37,6 +37,11 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    active_model_serializers (0.10.10)
+      actionpack (>= 4.1, < 6.1)
+      activemodel (>= 4.1, < 6.1)
+      case_transform (>= 0.2)
+      jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
     activejob (5.2.3)
       activesupport (= 5.2.3)
       globalid (>= 0.3.6)
@@ -62,6 +67,8 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.3)
     byebug (11.0.1)
+    case_transform (0.2)
+      activesupport
     concurrent-ruby (1.1.5)
     crass (1.0.4)
     database_cleaner (1.7.0)
@@ -88,7 +95,20 @@ GEM
       domain_name (~> 0.5)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
+    jsonapi-renderer (0.2.2)
     jwt (2.2.1)
+    kaminari (1.1.1)
+      activesupport (>= 4.1.0)
+      kaminari-actionview (= 1.1.1)
+      kaminari-activerecord (= 1.1.1)
+      kaminari-core (= 1.1.1)
+    kaminari-actionview (1.1.1)
+      actionview
+      kaminari-core (= 1.1.1)
+    kaminari-activerecord (1.1.1)
+      activerecord
+      kaminari-core (= 1.1.1)
+    kaminari-core (1.1.1)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -139,6 +159,7 @@ GEM
     public_suffix (3.1.0)
     puma (3.12.1)
     rack (2.0.7)
+    rack-cors (0.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)
@@ -246,15 +267,18 @@ PLATFORMS
   x64-mingw32
 
 DEPENDENCIES
+  active_model_serializers (~> 0.10.8)
   bootsnap (>= 1.1.0)
   byebug
   database_cleaner
   factory_bot_rails
   faker!
   figaro
+  kaminari
   listen (>= 3.0.5, < 3.2)
   pg (~> 1.1, >= 1.1.4)
   puma (~> 3.11)
+  rack-cors (~> 0.3.1)
   rails (~> 5.2.3)
   rspec-rails (~> 3.8)
   rspotify

app/controllers/api/v1/albums_controller.rb

@@ -1,15 +1,21 @@
-module Api
-  module V1
-    class AlbumsController < ApplicationController
-      #get all songs of an album
-      def get_songs
-        songs = Album.find(params[:id]).songs.select(:name, :spotify_url, :preview_url, :duration_ms, :explicit).as_json(:except => :id)
-        if !songs.empty?
-          render json: {status: 'SUCCESS', data: songs}, status: :ok
-        else
-          render json: {status: 'FAILED', data: {name: 'Album not found.'}}, status: :unprocessable_entity
-        end
-      end
+class Api::V1::AlbumsController < ApplicationController
+  #get all songs of an album
+=begin
+  def get_songs
+    songs = Album.find(params[:id]).songs.select(:name, :spotify_url, :preview_url, :duration_ms, :explicit).as_json(:except => :id)
+    if !songs.empty?
+      render json: {status: 'SUCCESS', data: songs}, status: :ok
+    else
+      render json: {status: 'FAILED', data: {name: 'Album not found.'}}, status: :unprocessable_entity
     end
   end
+=end
+  def index
+    parameters =  AlbumParams.new
+    parameters.parse_query_string(params)
+
+    render json: Album.get_all(parameters),
+           status: :ok
+  end
+
 end

app/controllers/api/v1/artists_controller.rb

@@ -1,26 +1,32 @@
-module Api
-  module V1
-    class ArtistsController < ApplicationController
-      #Get artists and order them by popularity
-      def index
-        artists = Artist.select(:id, :name, :image, :genres, :popularity, :spotify_url).order('popularity DESC')
+class Api::V1::ArtistsController < ApplicationController
+  #Get artists and order them by popularity
+=begin
+  def index
+    artists = Artist.select(:id, :name, :image, :genres, :popularity, :spotify_url).order('popularity DESC')
 
-        if artists.any?
-          render json: {status: 'SUCCESS', data: artists}, status: :ok
-        else
-          render json: {status: 'FAILED', data: 'No artists saved'}, status: :unprocessable_entity
-        end
-      end
+    if artists.any?
+      render json: {status: 'SUCCESS', data: artists}, status: :ok
+    else
+      render json: {status: 'FAILED', data: 'No artists saved'}, status: :unprocessable_entity
+    end
+  end
 
-      # Get all artist albums
-      def get_albums
-        albums = Artist.find(params[:id]).albums.select(:id, :name, :image, :spotify_url, :total_tracks)
-        if !albums.empty?
-          render json: {status: 'SUCCESS', data: albums}, status: :ok
-        else
-          render json: {status: 'FAILED', data: {name: 'Artist not found.'}}, status: :unprocessable_entity
-        end
-      end
+  # Get all artist albums
+  def get_albums
+    albums = Artist.find(params[:id]).albums.select(:id, :name, :image, :spotify_url, :total_tracks)
+    if !albums.empty?
+      render json: {status: 'SUCCESS', data: albums}, status: :ok
+    else
+      render json: {status: 'FAILED', data: {name: 'Artist not found.'}}, status: :unprocessable_entity
     end
   end
+=end
+  def index
+    parameters =  AlbumParams.new
+    parameters.parse_query_string(params)
+
+    render json: Artist.get_all(parameters),
+           status: :ok
+  end
+
 end

app/controllers/api/v1/songs_controller.rb

@@ -0,0 +1,30 @@
+class Api::V1::SongsController < ApplicationController
+  # get ramdom song by genre
+=begin
+  def song_by_genre
+    artists = Artist.where("genres ~* ?", params[:genre_name])
+    if !artists.empty?
+      song = artists.sample.albums.sample.songs.sample.as_json(:except => [:id, :album_id, :updated_at, :created_at, :spotify_id])
+      if song.nil?
+        song = artists.sample.albums.sample.songs.sample.as_json(:except => [:id, :album_id, :updated_at, :created_at, :spotify_id])
+      end
+      render json: {status: 'SUCCESS', data: song}, status: :ok
+    else
+      render json: {status: 'FAILED', data: {name: 'Genre not found.'}}, status: :unprocessable_entity
+    end
+  end
+=end
+  def index
+    parameters =  SongParams.new
+    parameters.parse_query_string(params)
+    render json: Song.get_all(parameters),
+           status: :ok
+  end
+
+  def random_song
+    render json: Song.by_genre_name_eq(params[:genre_name]).take,
+           serializer: SongSerializer,
+           status: :ok
+  end
+
+end

app/models/album.rb

@@ -1,4 +1,25 @@
 class Album < ApplicationRecord
   belongs_to :artist
   has_many :songs
+
+  validates :name, presence: true
+  validates :spotify_url, presence: true
+
+  scope :by_artist_id_eq, proc { |artist_id|
+    if artist_id.present?
+      where(artist_id: artist_id)
+    end
+  }
+
+  def self.get_all(params)
+    query = all
+    query = params.apply_filters(query)
+    PaginateList
+      .get_all_paginate(
+        query,
+        params.pagination_limit,
+        params.pagination_number,
+        AlbumSerializer)
+  end
+
 end

app/models/artist.rb

@@ -1,3 +1,20 @@
 class Artist < ApplicationRecord
   has_many :albums
+  has_many :songs, through: :albums
+
+  validates :name, presence: true
+  validates :spotify_url, presence: true
+
+  default_scope {order(popularity: :desc)}
+
+  def self.get_all(params)
+      query = all
+      PaginateList
+        .get_all_paginate(
+          query,
+          params.pagination_limit,
+          params.pagination_number,
+          ArtistSerializer)
+  end
+
 end

app/models/song.rb

@@ -1,3 +1,37 @@
 class Song < ApplicationRecord
   belongs_to :album
+  has_one :artist, :through => :album
+  validates :name, presence: true
+  validates :spotify_url, presence: true
+
+  scope :by_album_id_eq, proc { |album_id|
+    if album_id.present?
+      where(album_id: album_id)
+    end
+  }
+
+  scope :by_genre_name_eq, proc { |genre|
+    if genre.present?
+      joins(:artist).where('artists.genres like ?', "%#{genre}%")
+                    .offset(
+                      rand(Song.joins(:artist)
+                               .where('artists.genres like ?', "%#{genre}%")
+                               .count
+                          )
+                    )
+
+    end
+  }
+
+  def self.get_all(params)
+    query = all
+    query = params.apply_filters(query)
+    PaginateList
+      .get_all_paginate(
+        query,
+        params.pagination_limit,
+        params.pagination_number,
+        SongSerializer)
+  end
+
 end

app/serializers/album_serializer.rb

@@ -0,0 +1,8 @@
+class AlbumSerializer < ActiveModel::Serializer
+  attributes :id,
+             :name,
+             :image,
+             :spotify_url,
+             :total_tracks
+
+end

app/serializers/artist_serializer.rb

@@ -0,0 +1,12 @@
+class ArtistSerializer < ActiveModel::Serializer
+  attributes :id,
+             :name,
+             :image,
+             :genres,
+             :popularity,
+             :spotify_url
+
+  def genres
+    JSON(object.genres)
+  end
+end

app/serializers/song_serializer.rb

@@ -0,0 +1,9 @@
+class SongSerializer < ActiveModel::Serializer
+  attributes :id,
+             :name,
+             :spotify_url,
+             :preview_url,
+             :duration_ms,
+             :explicit
+
+end

config/routes.rb

@@ -1,6 +1,6 @@
 Rails.application.routes.draw do
+=begin
   #namespace :api, defaluts: {format: :json} => defaults
-
   namespace 'api', defaults: { format: :json } do
     namespace 'v1', defaults: { format: :json } do
       get 'artists', to: 'artists#index'
@@ -9,5 +9,14 @@
       get 'genres/:genre_name/random_song', to: 'genres#song_by_genre'
     end
   end
+=end
+  namespace :api do
+      namespace :v1 do
+        resources :artists, only: [:index]
+        get 'artists/:artist_id/albums', action: :index, controller: :albums
+        get 'albums/:album_id/songs', action: :index, controller: :songs
+        get 'genre/:genre_name/random_song', action: :random_song, controller: :songs
+      end
+    end
 
 end

db/migrate/20190609162147_create_artists.rb

@@ -1,7 +1,13 @@
 class CreateArtists < ActiveRecord::Migration[5.2]
   def change
     create_table :artists do |t|
-
+      t.string :name
+      t.string :image
+      t.text :genres, default: [].to_yaml
+      t.integer :popularity
+      t.string :spotify_url
+      t.string :spotify_id
+
       t.timestamps
     end
   end

db/migrate/20190609162522_create_albums.rb

@@ -2,6 +2,11 @@ class CreateAlbums < ActiveRecord::Migration[5.2]
   def change
     create_table :albums do |t|
       t.references :artist, foreign_key: true
+      t.string :name
+      t.string :image
+      t.string :spotify_url
+      t.integer :total_tracks
+      t.string :spotify_id
 
       t.timestamps
     end

db/migrate/20190609162542_create_songs.rb

@@ -2,6 +2,12 @@ class CreateSongs < ActiveRecord::Migration[5.2]
   def change
     create_table :songs do |t|
       t.references :album, foreign_key: true
+      t.string :name
+      t.string :spotify_url
+      t.string :preview_url
+      t.string :duration_ms
+      t.boolean :explicit
+      t.string :spotify_id
 
       t.timestamps
     end