require 'rails/generators/migration'

class Spud::ModuleGenerator < ::Rails::Generators::Base
  desc "Creates a new model, dashboard module, and frontend route"
  argument :module_name, :type => :string
  argument :attributes, :type => :array, :default => [], :banner => "field[:type][:index] field[:type][:index]"

  source_root File.expand_path('../templates', __FILE__)

  def create_module
    template "admin_controller.rb.erb", "app/controllers/admin/#{module_name_formatted}_controller.rb"
    template "controller.rb.erb", "app/controllers/#{module_name_formatted}_controller.rb"
    template "assets/module.js.erb", "app/assets/javascripts/#{module_name_formatted}.js"
    template "assets/admin/module.js.erb", "app/assets/javascripts/admin/#{module_name_formatted}.js"
    create_file "app/assets/stylesheets/admin/#{module_name_formatted}.scss", "// Place #{module_name} admin styles here\n\n"
    create_file "app/assets/stylesheets/#{module_name_formatted}.scss", "// Place #{module_name} styles here\n\n"
    template "views/admin/index.html.erb", "app/views/admin/#{module_name_formatted}/index.html.erb"
    template "views/admin/show.html.erb", "app/views/admin/#{module_name_formatted}/show.html.erb"
    template "views/admin/new.html.erb", "app/views/admin/#{module_name_formatted}/new.html.erb"
    template "views/admin/edit.html.erb", "app/views/admin/#{module_name_formatted}/edit.html.erb"
    template "views/admin/_form.html.erb", "app/views/admin/#{module_name_formatted}/_form.html.erb"
    template "views/frontend/index.html.erb", "app/views/#{module_name_formatted}/index.html.erb"
    template "views/frontend/show.html.erb", "app/views/#{module_name_formatted}/show.html.erb"
    environment("Spud::Core.config.admin_applications += [{:name => '#{module_name_formatted.humanize.titlecase}', :thumbnail => \"admin/module_icon.png\", :url => \"/admin/#{module_name_formatted}\"}]")
    create_routes
    Rails::Generators.invoke "model", [module_name_formatted.singularize] + attributes, :behavior => behavior
    Rails::Generators.invoke 'helper', [module_name], :behavior => behavior
    Rails::Generators.invoke 'helper', ["Admin/#{module_name}"], :behavior => behavior
    if self.behavior == :invoke
      create_model_scopes()
    end
  end

private

  def module_name_formatted
    module_name.pluralize.underscore
  end

  def create_routes
    route <<EOF
namespace :admin do
    resources :#{module_name_formatted}
  end
  resources :#{module_name_formatted}, :only => [:index, :show]
EOF
  end

  def field_for_attribute(type, name)
    case type
      when 'integer'
        "<%= f.tb_number_field :#{name} %>"
      when 'text'
        "<%= f.tb_text_area :#{name}, :rows => 4 %>"
      when 'boolean'
        "<%= f.tb_check_box :#{name} %>"
      when 'date'
        "<%= f.tb_date_select :#{name} %>"
      else
        "<%= f.tb_text_field :#{name} %>"
    end
  end

  def application_name
    Rails.application.class.name.split('::').first.underscore
  end

  def attribute_names
    attributes.collect{ |att| att.split(':')[0] }
  end

  def create_model_scopes
    sort_field = ask("What field would you like to sort by?", :default => 'created_at')
    search_field = ask("What field would you like to search by?", :default => attributes.first.split(':').first)
    inject_into_file "app/models/#{module_name.singularize.underscore}.rb", after: "ActiveRecord::Base\n" do <<-RUBY
  scope :ordered, ->{ order('#{sort_field} desc') }
  scope :search, ->(term){ where('#{search_field} LIKE ?', "%\#{term}%") }
RUBY
    end
  end

end