IronAdmin

gem "iron_admin"

Rails.application.routes.draw do
  mount IronAdmin::Engine, at: "/admin"
end

# config/initializers/iron_admin.rb
IronAdmin.configure do |config|
  config.title = "My App Admin"

  config.authenticate do |controller|
    user = User.find_by(id: controller.session[:user_id])
    controller.redirect_to "/login" unless user&.admin?
  end

  config.current_user do |controller|
    User.find_by(id: controller.session[:user_id])
  end
end

# app/iron_admin/user_resource.rb
class UserResource < IronAdmin::Resource
  field :role, type: :badge, colors: { admin: :purple, user: :blue }
  field :email, type: :text

  searchable :name, :email

  filter :role, type: :select, choices: User.roles.keys
  filter :created_at, type: :date_range

  scope :admins, -> { where(role: :admin) }
  scope :recent, -> { where("created_at > ?", 7.days.ago) }

  index_fields :id, :name, :email, :role, :created_at
  form_fields :name, :email, :role

  menu priority: 1, icon: "users", group: "People"

  action :lock, icon: "lock-closed", confirm: true do |record|
    record.update!(locked_at: Time.current)
  end
end

# app/iron_admin/admin_dashboard.rb
class AdminDashboard < IronAdmin::Dashboard
  metric :total_users, format: :number do
    User.count
  end

  metric :monthly_revenue, format: :currency do
    Payment.where("created_at > ?", 30.days.ago).sum(:amount)
  end

  recent :users, limit: 5, scope: -> { order(created_at: :desc) }
  recent :payments, limit: 5
end