module RecurringSelect

# File lib/recurring_select.rb, line 6
def self.dirty_hash_to_rule(params)
  if params.is_a? IceCube::Rule
    params
  else
    params = JSON.parse(params, quirks_mode: true) if params.is_a?(String)
    if params.nil?
      nil
    else
      params = params.symbolize_keys
      rules_hash = filter_params(params)
      IceCube::Rule.from_hash(rules_hash)
    end

  end
end

# File lib/recurring_select.rb, line 22
def self.is_valid_rule?(possible_rule)
  return true if possible_rule.is_a?(IceCube::Rule)
  return false if possible_rule.blank?

  if possible_rule.is_a?(String)
    begin
      return JSON.parse(possible_rule).is_a?(Hash)
    rescue JSON::ParserError
      return false
    end
  end

  # TODO: this should really have an extra step where it tries to perform the final parsing
  return true if possible_rule.is_a?(Hash)

  false #only a hash or a string of a hash can be valid
end

# File lib/recurring_select.rb, line 42
def self.filter_params(params)
  params.reject!{|key, value| value.blank? || value=="null" }

  params[:interval] = params[:interval].to_i if params[:interval]
  params[:week_start] = params[:week_start].to_i if params[:week_start]

  params[:validations] ||= {}
  params[:validations].symbolize_keys!

  if params[:validations][:day]
    params[:validations][:day] = params[:validations][:day].collect(&:to_i)
  end

  if params[:validations][:day_of_month]
    params[:validations][:day_of_month] = params[:validations][:day_of_month].collect(&:to_i)
  end

  # this is soooooo ugly
  if params[:validations][:day_of_week]
    params[:validations][:day_of_week] ||= {}
    if params[:validations][:day_of_week].length > 0 and not params[:validations][:day_of_week].keys.first =~ /\d/
      params[:validations][:day_of_week].symbolize_keys!
    else
      originals = params[:validations][:day_of_week].dup
      params[:validations][:day_of_week] = {}
      originals.each{|key, value|
        params[:validations][:day_of_week][key.to_i] = value
      }
    end
    params[:validations][:day_of_week].each{|key, value|
      params[:validations][:day_of_week][key] = value.collect(&:to_i)
    }
  end

  if params[:validations][:day_of_year]
    params[:validations][:day_of_year] = params[:validations][:day_of_year].collect(&:to_i)
  end

  params
end