Merge branch 'rollups' into 'rails'

Estadísticas

Closes #3228

See merge request sutty/sutty!61

Gemfile

@@ -31,6 +31,7 @@ gem 'jbuilder', '~> 2.5'
 # Use ActiveModel has_secure_password
 gem 'bcrypt', '~> 3.1.7'
 gem 'blazer'
+gem 'chartkick'
 gem 'commonmarker'
 gem 'devise'
 gem 'devise-i18n'
@@ -61,6 +62,7 @@ gem 'rails-i18n'
 gem 'rails_warden'
 gem 'redis', require: %w[redis redis/connection/hiredis]
 gem 'redis-rails'
+gem 'rollups', git: 'https://github.com/ankane/rollup.git', branch: 'master'
 gem 'rubyzip'
 gem 'rugged'
 gem 'concurrent-ruby-ext'

Gemfile.lock

@@ -6,6 +6,15 @@ GIT
       rails (>= 3.0)
       rake (>= 0.8.7)
 
+GIT
+  remote: https://github.com/ankane/rollup.git
+  revision: 94ca777d54180c23e96ac4b4285cc9b405ccbd1a
+  branch: master
+  specs:
+    rollups (0.1.2)
+      activesupport (>= 5.1)
+      groupdate (>= 5.2)
+
 GIT
   remote: https://github.com/fauno/email_address
   revision: 536b51f7071b68a55140c0c1726b4cd401d1c04d
@@ -205,6 +214,8 @@ GEM
       ffi (~> 1.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
+    groupdate (5.2.2)
+      activesupport (>= 5)
     hairtrigger (0.2.24)
       activerecord (>= 5.0, < 7)
       ruby2ruby (~> 2.4)
@@ -649,6 +660,7 @@ DEPENDENCIES
   bootstrap (~> 4)
   brakeman
   capybara (~> 2.13)
+  chartkick
   commonmarker
   concurrent-ruby-ext
   database_cleaner
@@ -707,6 +719,7 @@ DEPENDENCIES
   recursero-jekyll-theme
   redis
   redis-rails
+  rollups!
   rubocop-rails
   rubyzip
   rugged

app/controllers/stats_controller.rb

@@ -3,16 +3,166 @@
 # Estadísticas del sitio
 class StatsController < ApplicationController
   include Pundit
+  include ActionView::Helpers::DateHelper
+
   before_action :authenticate_usuarie!
+  before_action :authorize_stats
+
+  EXTRA_OPTIONS = {
+    builds: {},
+    space_used: { bytes: true },
+    build_time: {}
+  }.freeze
+
+  # XXX: Permitir a Chart.js inyectar su propio CSS
+  content_security_policy only: :index do |policy|
+    policy.style_src :self, :unsafe_inline
+    policy.script_src :self, :unsafe_inline
+  end
 
   def index
+    @chart_params = { interval: interval }
+    hostnames
+    last_stat
+    chart_options
+    normalized_urls
+  end
+
+  # Genera un gráfico de visitas por dominio asociado a este sitio
+  def host
+    return unless stale? [last_stat, hostnames, interval]
+
+    stats = Rollup.where_dimensions(host: hostnames).multi_series('host', interval: interval).tap do |series|
+      series.each do |serie|
+        serie[:name] = serie.dig(:dimensions, 'host')
+        serie[:data].transform_values! do |value|
+          value * nodes
+        end
+      end
+    end
+
+    render json: stats
+  end
+
+  def resources
+    return unless stale? [last_stat, interval, resource]
+
+    options = {
+      interval: interval,
+      dimensions: {
+        deploy_id: @site.deploys.where(type: 'DeployLocal').pluck(:id).first
+      }
+    }
+
+    render json: Rollup.series(resource, **options)
+  end
+
+  def uris
+    return unless stale? [last_stat, hostnames, interval, normalized_urls]
+
+    options = { host: hostnames, uri: normalized_paths }
+    stats = Rollup.where_dimensions(**options).multi_series('host|uri', interval: interval).tap do |series|
+      series.each do |serie|
+        serie[:name] = serie[:dimensions].slice('host', 'uri').values.join.sub('/index.html', '/')
+        serie[:data].transform_values! do |value|
+          value * nodes
+        end
+      end
+    end
+
+    render json: stats
+  end
+
+  private
+
+  def last_stat
+    @last_stat ||= Stat.last
+  end
+
+  def authorize_stats
     @site = find_site
     authorize SiteStat.new(@site)
+  end
 
-    # Solo queremos el promedio de tiempo de compilación, no de
+  # TODO: Eliminar cuando mergeemos referer-origin
-    # instalación de dependencias.
+  def hostnames
-    stats = @site.build_stats.jekyll
+    @hostnames ||= [@site.hostname, @site.alternative_hostnames].flatten
-    @build_avg = stats.average(:seconds).to_f.round(2)
+  end
-    @build_max = stats.maximum(:seconds).to_f.round(2)
+
+  # Normalizar las URLs
+  #
+  # @return [Array]
+  def normalized_urls
+    @normalized_urls ||= params.permit(:urls).try(:[],
+                                                  :urls)&.split("\n")&.map(&:strip)&.select(&:present?)&.select do |uri|
+                           uri.start_with? 'https://'
+                         end&.map do |u|
+                           # XXX: Eliminar
+                           # @see {https://0xacab.org/sutty/containers/nginx/-/merge_requests/1}
+                           next u unless u.end_with? '/'
+
+                           "#{u}index.html"
+                         end&.uniq || [@site.url, @site.urls].flatten.uniq
+  end
+
+  def normalized_paths
+    @normalized_paths ||= normalized_urls.map do |u|
+      "/#{u.split('/', 4).last}"
+    end.map do |u|
+      URI.decode_www_form_component u
+    end
+  end
+
+  # Opciones por defecto para los gráficos.
+  #
+  # La invitación a volver dentro de X tiempo es para dar un estimado de
+  # cuándo habrá información disponible, porque Rollup genera intervalos
+  # completos (¿aunque dice que no?)
+  #
+  # La diferencia se calcula sumando el intervalo a la hora de última
+  # toma de estadísticas y restando el tiempo que pasó desde ese
+  # momento.
+  def chart_options
+    time = (last_stat&.created_at || Time.now) + 1.try(interval)
+    please_return_at = { please_return_at: distance_of_time_in_words(Time.now, time) }
+
+    @chart_options ||= {
+      locale: I18n.locale,
+      empty: I18n.t('stats.index.empty', **please_return_at),
+      loading: I18n.t('stats.index.loading'),
+      html: %(<div id="%{id}" class="d-flex align-items-center justify-content-center" style="height: %{height}; width: %{width};">%{loading}</div>)
+    }
+  end
+
+  # Obtiene y valida los intervalos
+  #
+  # @return [Symbol]
+  def interval
+    @interval ||= begin
+      i = params[:interval]&.to_sym
+      Stat::INTERVALS.include?(i) ? i : :day
+    end
+  end
+
+  def resource
+    @resource ||= begin
+      r = params[:resource].to_sym
+      Stat::RESOURCES.include?(r) ? r : :builds
+    end
+  end
+
+  # Obtiene la cantidad de nodos de Sutty, para poder calcular la
+  # cantidad de visitas.
+  #
+  # Como repartimos las visitas por nodo rotando las IPs en el
+  # nameserver y los resolvedores de DNS eligen un nameserver
+  # aleatoriamente, la cantidad de visitas se reparte
+  # equitativamente.
+  #
+  # XXX: Remover cuando podamos centralizar los AccessLog
+  #
+  # @return [Integer]
+  def nodes
+    @nodes ||= ENV.fetch('NODES', 1).to_i
   end
 end

app/javascript/packs/application.js

@@ -18,6 +18,7 @@ import 'etc'
 import Rails from '@rails/ujs'
 import Turbolinks from 'turbolinks'
 import * as ActiveStorage from '@rails/activestorage'
+import 'chartkick/chart.js'
 
 Rails.start()
 Turbolinks.start()

app/jobs/periodic_job.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+# Una tarea que se corre periódicamente
+class PeriodicJob < ApplicationJob
+  class RunAgainException < StandardError; end
+
+  STARTING_INTERVAL = Stat::INTERVALS.first
+
+  # Tener el sitio a mano
+  attr_reader :site
+
+  # Descartar y notificar si pasó algo más.
+  #
+  # XXX: En realidad deberíamos seguir reintentando?
+  discard_on(StandardError) do |_, error|
+    ExceptionNotifier.notify_exception(error)
+  end
+
+  # Correr indefinidamente una vez por hora.
+  #
+  # XXX: El orden importa, si el descarte viene después, nunca se va a
+  # reintentar.
+  retry_on(PeriodicJob::RunAgainException, wait: 1.try(STARTING_INTERVAL), attempts: Float::INFINITY, jitter: 0)
+
+  private
+
+  # Las clases que implementen esta tienen que usar este método al
+  # terminar.
+  def run_again!
+    raise PeriodicJob::RunAgainException, 'Reintentando'
+  end
+
+  # El intervalo de inicio
+  #
+  # @return [Symbol]
+  def starting_interval
+    STARTING_INTERVAL
+  end
+
+  # La última recolección de estadísticas o empezar desde el principio
+  # de los tiempos.
+  #
+  # @return [Stat]
+  def last_stat
+    @last_stat ||= site.stats.where(name: stat_name).last ||
+                   site.stats.build(created_at: Time.new(1970, 1, 1))
+  end
+
+  # Devuelve el comienzo del intervalo
+  #
+  # @return [Time]
+  def beginning_of_interval
+    @beginning_of_interval ||= last_stat.created_at.try(:"beginning_of_#{starting_interval}")
+  end
+end

app/jobs/stat_collection_job.rb

@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+# Genera resúmenes de información para poder mostrar estadísticas y se
+# corre regularmente a sí misma.
+class StatCollectionJob < ApplicationJob
+  STAT_NAME = 'stat_collection_job'
+
+  def perform(site_id:, once: true)
+    @site = Site.find site_id
+
+    scope.rollup('builds', **options)
+
+    scope.rollup('space_used', **options) do |rollup|
+      rollup.average(:bytes)
+    end
+
+    scope.rollup('build_time', **options) do |rollup|
+      rollup.average(:seconds)
+    end
+
+    # XXX: Es correcto promediar promedios?
+    Stat::INTERVALS.reduce do |previous, current|
+      rollup(name: 'builds', interval_previous: previous, interval: current)
+      rollup(name: 'space_used', interval_previous: previous, interval: current, operation: :average)
+      rollup(name: 'build_time', interval_previous: previous, interval: current, operation: :average)
+
+      current
+    end
+
+    # Registrar que se hicieron todas las recolecciones
+    site.stats.create! name: STAT_NAME
+
+    run_again! unless once
+  end
+
+  private
+
+  # Genera un rollup recursivo en base al período anterior y aplica una
+  # operación.
+  #
+  # @return [NilClass]
+  def rollup(name:, interval_previous:, interval:, operation: :sum)
+    Rollup.where(name: name, interval: interval_previous)
+          .where_dimensions(site_id: site.id)
+          .group("dimensions->'site_id'")
+          .rollup(name, interval: interval, update: true) do |rollup|
+            rollup.try(:operation, :value)
+          end
+  end
+
+  # Los registros a procesar
+  #
+  # @return [ActiveRecord::Relation]
+  def scope
+    @scope ||= site.build_stats
+                   .jekyll
+                   .where('created_at => ?', beginning_of_interval)
+                   .group(:site_id)
+  end
+
+  # Las opciones por defecto
+  #
+  # @return [Hash]
+  def options
+    @options ||= { interval: starting_interval, update: true }
+  end
+end

app/jobs/uri_collection_job.rb

@@ -0,0 +1,106 @@
+# frozen_string_literal: true
+
+# Procesar una lista de URIs para una lista de dominios.  Esto nos
+# permite procesar estadísticas a demanda.
+#
+# Hay varias cosas acá que van a convertirse en métodos propios, como la
+# detección de URIs de un sitio (aunque la versión actual detecta todas
+# las páginas y no solo las de posts como tenemos planeado, hay que
+# resolver eso).
+#
+# Los hostnames de un sitio van a poder obtenerse a partir de
+# Site#hostnames con la garantía de que son únicos.
+class UriCollectionJob < PeriodicJob
+  # Ignoramos imágenes porque suelen ser demasiadas y no aportan a las
+  # estadísticas.
+  IMAGES = %w[.png .jpg .jpeg .gif .webp].freeze
+  STAT_NAME = 'uri_collection_job'
+
+  def perform(site_id:, once: true)
+    @site = Site.find site_id
+
+    hostnames.each do |hostname|
+      uris.each do |uri|
+        return if File.exist? Rails.root.join('tmp', 'uri_collection_job_stop')
+
+        AccessLog.where(host: hostname, uri: uri)
+                 .where('created_at >= ?', beginning_of_interval)
+                 .completed_requests
+                 .non_robots
+                 .group(:host, :uri)
+                 .rollup('host|uri', interval: starting_interval, update: true)
+
+        # Reducir las estadísticas calculadas aplicando un rollup sobre el
+        # intervalo más amplio.
+        Stat::INTERVALS.reduce do |previous, current|
+          Rollup.where(name: 'host|uri', interval: previous)
+                .where_dimensions(host: hostname, uri: uri)
+                .group("dimensions->'host'", "dimensions->'uri'")
+                .rollup('host|uri', interval: current, update: true) do |rollup|
+                  rollup.sum(:value)
+                end
+
+          # Devolver el intervalo actual
+          current
+        end
+      end
+    end
+
+    # Recordar la última vez que se corrió la tarea
+    site.stats.create! name: STAT_NAME
+
+    run_again! unless once
+  end
+
+  private
+
+  def stat_name
+    STAT_NAME
+  end
+
+  # @return [String]
+  #
+  # TODO: Cambiar al mergear origin-referer
+  def destination
+    @destination ||= site.deploys.find_by(type: 'DeployLocal').destination
+  end
+
+  # TODO: Cambiar al mergear origin-referer
+  #
+  # @return [Array]
+  def hostnames
+    @hostnames ||= site.deploys.map do |deploy|
+      case deploy
+      when DeployLocal
+        site.hostname
+      when DeployWww
+        deploy.fqdn
+      when DeployAlternativeDomain
+        deploy.hostname.dup.tap do |h|
+          h.replace(h.end_with?('.') ? h[0..-2] : "#{h}.#{Site.domain}")
+        end
+      when DeployHiddenService
+        deploy.onion
+      end
+    end.compact
+  end
+
+  # Recolecta todas las URIs menos imágenes
+  #
+  # @return [Array]
+  def uris
+    @uris ||= Dir.chdir destination do
+      (Dir.glob('**/*.html') + Dir.glob('public/**/*').reject do |p|
+        File.directory? p
+      end.reject do |p|
+        p = p.downcase
+
+        IMAGES.any? do |i|
+          p.end_with? i
+        end
+      end).map do |uri|
+        "/#{uri}"
+      end
+    end
+  end
+end

app/models/access_log.rb

@@ -1,4 +1,12 @@
 # frozen_string_literal: true
 
 class AccessLog < ApplicationRecord
+  # Las peticiones completas son las que terminaron bien y se
+  # respondieron con 200 OK o 304 Not Modified
+  #
+  # @see {https://en.wikipedia.org/wiki/List_of_HTTP_status_codes}
+  scope :completed_requests, -> { where(request_method: 'GET', request_completion: 'OK', status: [200, 304]) }
+  scope :non_robots, -> { where(crawler: false) }
+  scope :robots, -> { where(crawler: true) }
+  scope :pages, -> { where(sent_http_content_type: ['text/html', 'text/html; charset=utf-8', 'text/html; charset=UTF-8']) }
 end

app/models/site.rb

@@ -37,6 +37,7 @@ class Site < ApplicationRecord
   belongs_to :design
   belongs_to :licencia
 
+  has_many :stats
   has_many :log_entries, dependent: :destroy
   has_many :deploys, dependent: :destroy
   has_many :build_stats, through: :deploys

app/models/stat.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+# Registran cuándo fue la última recolección de datos.
+class Stat < ApplicationRecord
+  # XXX: Los intervalos van en orden de mayor especificidad a menor
+  INTERVALS = %i[day month year].freeze
+  RESOURCES = %i[builds space_used build_time].freeze
+
+  belongs_to :site
+end

app/policies/site_stat_policy.rb

@@ -12,4 +12,16 @@ class SiteStatPolicy
   def index?
     site_stat.site.usuarie? usuarie
   end
+
+  def host?
+    index?
+  end
+
+  def resources?
+    index?
+  end
+
+  def uris?
+    index?
+  end
 end

app/views/stats/index.haml

@@ -1,17 +1,43 @@
-= render 'layouts/breadcrumb',
-  crumbs: [link_to(t('sites.index.title'), sites_path),
-  link_to(@site.name, site_path(@site)), t('.title')]
-
 .row
   .col
     %h1= t('.title')
     %p.lead= t('.help')
+    - if @last_stat
+      %p
+        %small
+          = t('.last_update')
+          %time{ datetime: @last_stat.created_at }
+            #{time_ago_in_words @last_stat.created_at}.
 
-    %table.table.table-condensed
+    .mb-5
-      %tbody
+      - Stat::INTERVALS.each do |interval|
-        %tr
+        = link_to t(".#{interval}"), site_stats_path(interval: interval, urls: params[:urls]), class: "btn #{'btn-primary active' if @interval == interval}"
-          %td= t('.build.average')
+
-          %td= distance_of_time_in_words_if_more_than_a_minute @build_avg
+    .mb-5
-        %tr
+      %h2= t('.host.title', count: @hostnames.size)
-          %td= t('.build.maximum')
+      %p.lead= t('.host.description')
-          %td= distance_of_time_in_words_if_more_than_a_minute @build_max
+      = line_chart site_stats_host_path(@chart_params), **@chart_options
+
+    .mb-5
+      %h2= t('.urls.title')
+      %p.lead= t('.urls.description')
+      %form
+        %input{ type: 'hidden', name: 'interval', value: @interval }
+        .form-group
+          %label{ for: 'urls' }= t('.urls.label')
+          %textarea#urls.form-control{ name: 'urls', autocomplete: 'on', required: true, rows: @normalized_urls.size, aria_describedby: 'help-urls' }= @normalized_urls.join("\n")
+          %small#help-urls.feedback.form-text.text-muted= t('.urls.help')
+        .form-group
+          %button.btn{ type: 'submit' }= t('.urls.submit')
+      - if @normalized_urls.present?
+        = line_chart site_stats_uris_path(urls: params[:urls], **@chart_params), **@chart_options
+
+    .mb-5
+      %h2= t('.resources.title')
+      %p.lead= t('.resources.description')
+
+    - Stat::RESOURCES.each do |resource|
+      .mb-5
+        %h3= t(".resources.#{resource}.title")
+        %p.lead= t(".resources.#{resource}.description")
+        = line_chart site_stats_resources_path(resource: resource, **@chart_params), **@chart_options.merge(StatsController::EXTRA_OPTIONS[resource])

config/initializers/inflections.rb

@@ -11,6 +11,8 @@ ActiveSupport::Inflector.inflections(:en) do |inflect|
   inflect.singular 'licencias', 'licencia'
   inflect.plural 'rol', 'roles'
   inflect.singular 'roles', 'rol'
+  inflect.plural 'rollup', 'rollups'
+  inflect.singular 'rollups', 'rollup'
 end
 
 ActiveSupport::Inflector.inflections(:es) do |inflect|
@@ -24,4 +26,6 @@ ActiveSupport::Inflector.inflections(:es) do |inflect|
   inflect.singular 'roles', 'rol'
   inflect.plural 'licencia', 'licencias'
   inflect.singular 'licencias', 'licencia'
+  inflect.plural 'rollup', 'rollups'
+  inflect.singular 'rollups', 'rollup'
 end

config/locales/en.yml

@@ -252,9 +252,38 @@ en:
       help: |
         These statistics show information about how your site is generated and
         how many resources it uses.
-      build:
+      last_update: 'Updated every hour.  Last update on '
-        average: 'Average building time'
+      empty: 'There is no enough information yet.  We invite you to come back in %{please_return_at}!'
-        maximum: 'Maximum building time'
+      loading: 'Loading...'
+      hour: 'Hourly'
+      day: 'Daily'
+      week: 'Weekly'
+      month: 'Monthly'
+      year: 'Yearly'
+      host:
+        title:
+          zero: 'Site visits'
+          one: 'Site visits'
+          other: 'Visits by domain name'
+        description: 'Counts visited pages on your site, grouped by domain names in use.'
+      urls:
+        title: 'Visits by URL'
+        description: 'Counts visits or downloads on any URL.'
+        label: 'URLs ("links")'
+        help: 'Copy and paste a single URL per line'
+        submit: 'Update graph'
+      resources:
+        title: 'Resource usage'
+        description: "In this section you can find statistics on your site's use of Sutty's shared resources"
+        builds:
+          title: 'Site publication'
+          description: 'Times you published your site.'
+        space_used:
+          title: 'Server disk usage'
+          description: 'Average storage space used by your site.'
+        build_time:
+          title: 'Publication time'
+          description: 'Average time your site takes to build.'
   sites:
     donations:
       url: 'https://donaciones.sutty.nl/en/'

config/locales/es.yml

@@ -257,9 +257,38 @@ es:
       help: |
         Las estadísticas visibilizan información sobre cómo se genera y
         cuántos recursos utiliza tu sitio.
-      build:
+      last_update: 'Actualizadas cada hora.  Última actualización hace '
-        average: 'Tiempo promedio de generación'
+      empty: 'Todavía no hay información suficiente. Te invitamos a volver en %{please_return_at} :)'
-        maximum: 'Tiempo máximo de generación'
+      loading: 'Cargando...'
+      hour: 'Por hora'
+      day: 'Diarias'
+      week: 'Semanales'
+      month: 'Mensuales'
+      year: 'Anuales'
+      host:
+        title:
+          zero: 'Visitas del sitio'
+          one: 'Visitas del sitio'
+          other: 'Visitas agrupadas por nombre de dominio del sitio'
+        description: 'Cuenta la cantidad de páginas visitadas en tu sitio.'
+      urls:
+        title: 'Visitas por dirección'
+        description: 'Cantidad de visitas o descargas por dirección.'
+        label: 'Direcciones web (URL, "links", vínculos)'
+        help: 'Copia y pega una dirección por línea.'
+        submit: 'Actualizar gráfico'
+      resources:
+        title: 'Uso de recursos'
+        description: 'En esta sección podrás acceder a estadísticas del uso de recursos compartidos con otros sitios alojados en Sutty.'
+        builds:
+          title: 'Publicaciones del sitio'
+          description: 'Cantidad de veces que publicaste tu sitio.'
+        space_used:
+          title: 'Espacio utilizado en el servidor'
+          description: 'Espacio en disco que ocupa en promedio tu sitio.'
+        build_time:
+          title: 'Tiempo de publicación'
+          description: 'Tiempo promedio que toma en publicarse tu sitio.'
   sites:
     donations:
       url: 'https://donaciones.sutty.nl/'

config/routes.rb

@@ -76,5 +76,8 @@ Rails.application.routes.draw do
     post 'reorder_posts', to: 'sites#reorder_posts'
 
     resources :stats, only: [:index]
+    get :'stats/host', to: 'stats#host'
+    get :'stats/uris', to: 'stats#uris'
+    get :'stats/resources', to: 'stats#resources'
   end
 end

db/migrate/20210807003928_create_rollups.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+# Crear la tabla de Rollups
+class CreateRollups < ActiveRecord::Migration[6.1]
+  def change
+    create_table :rollups do |t|
+      t.string :name, null: false
+      t.string :interval, null: false
+      t.datetime :time, null: false
+      t.jsonb :dimensions, null: false, default: {}
+      t.float :value
+    end
+    add_index :rollups, %i[name interval time dimensions], unique: true
+  end
+end

db/migrate/20210807004941_add_create_at_to_access_logs.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+# Cambia los msec a datetime para poder agregar por tiempos
+class AddCreateAtToAccessLogs < ActiveRecord::Migration[6.1]
+  def up
+    add_column :access_logs, :created_at, :datetime, precision: 6
+
+    create_trigger(compatibility: 1).on(:access_logs).before(:insert) do
+      'new.created_at := to_timestamp(new.msec)'
+    end
+
+    ActiveRecord::Base.connection.execute('update access_logs set created_at = to_timestamp(msec);')
+  end
+
+  def down
+    remove_column :access_logs, :created_at
+  end
+end

db/migrate/20211008201239_create_stats.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+# Una tabla que lleva el recuento de recolección de estadísticas, solo
+# es necesario para saber cuándo se hicieron, si se hicieron y usar como
+# caché.
+class CreateStats < ActiveRecord::Migration[6.1]
+  def change
+    create_table :stats do |t|
+      t.timestamps
+    end
+  end
+end

package.json

@@ -13,6 +13,8 @@
     "@rails/ujs": "^6.1.3-1",
     "@rails/webpacker": "5.2.1",
     "babel-loader": "^8.2.2",
+    "chart.js": "^3.5.1",
+    "chartkick": "^4.0.5",
     "circular-dependency-plugin": "^5.2.2",
     "commonmark": "^0.29.0",
     "fork-awesome": "^1.1.7",

yarn.lock

@@ -2119,6 +2119,25 @@ chalk@^4.1.0:
     ansi-styles "^4.1.0"
     supports-color "^7.1.0"
 
+chart.js@>=3.0.2, chart.js@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/chart.js/-/chart.js-3.5.1.tgz#73e24d23a4134a70ccdb5e79a917f156b6f3644a"
+  integrity sha512-m5kzt72I1WQ9LILwQC4syla/LD/N413RYv2Dx2nnTkRS9iv/ey1xLTt0DnPc/eWV4zI+BgEgDYBIzbQhZHc/PQ==
+
+chartjs-adapter-date-fns@>=2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/chartjs-adapter-date-fns/-/chartjs-adapter-date-fns-2.0.0.tgz#5e53b2f660b993698f936f509c86dddf9ed44c6b"
+  integrity sha512-rmZINGLe+9IiiEB0kb57vH3UugAtYw33anRiw5kS2Tu87agpetDDoouquycWc9pRsKtQo5j+vLsYHyr8etAvFw==
+
+chartkick@^4.0.5:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/chartkick/-/chartkick-4.0.5.tgz#310a60c931e8ceedc39adee2ef8e9d1e474cb0e6"
+  integrity sha512-xKak4Fsgfvp1hj/LykRKkniDMaZASx2A4TdVc/sfsiNFFNf1m+D7PGwP1vgj1UsbsCjOCSfGWWyJpOYxkUCBug==
+  optionalDependencies:
+    chart.js ">=3.0.2"
+    chartjs-adapter-date-fns ">=2.0.0"
+    date-fns ">=2.0.0"
+
 chokidar@^2.1.8:
   version "2.1.8"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.8.tgz#804b3a7b6a99358c3c5c61e71d8728f041cff917"
@@ -2744,6 +2763,11 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
+date-fns@>=2.0.0:
+  version "2.24.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-2.24.0.tgz#7d86dc0d93c87b76b63d213b4413337cfd1c105d"
+  integrity sha512-6ujwvwgPID6zbI0o7UbURi2vlLDR9uP26+tW6Lg+Ji3w7dd0i3DOcjcClLjLPranT60SSEFBwdSyYwn/ZkPIuw==
+
 debug@2.6.9, debug@^2.2.0, debug@^2.3.3:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"