# Datasets CSV example:
# carto-do-public-data.open_data.geography_usa_state_2015,bq;spanner,999,2020-09-27T08:00:00
# carto-do-public-data.open_data.demographics_acs_usa_cbsaclipped_2015_yearly_2015,bq,2000,2020-09-27T08:00:00
namespace :cartodb do
  namespace :data_observatory do
    desc "Enables access to DO datasets for a user and saves the metadata in Central and Redis"
    task :purchase_datasets, [:username, :datasets_csv] => [:environment] do |_, args|
      username = args[:username]
      datasets_csv = args[:datasets_csv]
      usage = 'USAGE: data_observatory:purchase_datasets["username","path/datasets.csv"]'
      raise usage unless username.present? && datasets_csv.present?

      datasets = []
      CSV.foreach(args[:datasets_csv]) do |row|
        available_in = row[1].split(';')
        dataset = { dataset_id: row[0], available_in: available_in, price: row[2].to_f, expires_at: Time.parse(row[3]) }
        datasets << dataset
      end

      Carto::DoLicensingService.new(username).subscribe(datasets)

      puts 'Task finished succesfully!'
    end

    desc "Removes access to a DO dataset for a user and updates the metadata in Central and Redis"
    task :remove_purchase, [:username, :dataset_id] => [:environment] do |_, args|
      username = args[:username]
      dataset_id = args[:dataset_id]
      usage = 'USAGE: data_observatory:remove_purchase["username","project.schema.table"]'
      raise usage unless username.present? && dataset_id.present?

      Carto::DoLicensingService.new(username).unsubscribe(dataset_id)

      puts 'Task finished succesfully!'
    end
  end
end