metamaps--metamaps/app/policies/map_policy.rb

# frozen_string_literal: true
class MapPolicy < ApplicationPolicy
  class Scope < Scope
    def resolve
      visible = %w(public commons)
      return scope.where(permission: visible) unless user

      scope.where(permission: visible)
           .or(scope.where(id: user.shared_maps.map(&:id)))
           .or(scope.where(user_id: user.id))
    end
  end

  def index?
    true
  end

  def show?
    record.permission.in?('commons', 'public') ||
      record.collaborators.include?(user) ||
      record.user == user
  end

  def create?
    user.present?
  end

  def update?
    return false unless user.present?
    record.permission == 'commons' ||
      record.collaborators.include?(user) ||
      record.user == user
  end

  def destroy?
    record.user == user || admin_override
  end

  def access?
    # note that this is to edit who can access the map
    user.present? && record.user == user
  end

  def activemaps?
    user.blank? # redirect to root url if authenticated for some reason
  end

  def contains?
    show?
  end

  def events?
    show?
  end

  def export?
    show?
  end

  def featuredmaps?
    true
  end

  def mymaps?
    user.present?
  end

  def star?
    unstar?
  end

  def unstar?
    user.present?
  end

  def screenshot?
    update?
  end

  def usermaps?
    true
  end
end