Module: DecisionAgent::Dsl::Operators::DateArithmeticOperators

Defined in:
lib/decision_agent/dsl/operators/date_arithmetic_operators.rb

Overview

Handles date arithmetic operators: add_days, subtract_days, add_hours, subtract_hours, add_minutes, subtract_minutes

Class Method Summary collapse

Class Method Details

.compare_date_result?(actual, target, params) ⇒ Boolean

Compare date result

Returns:

  • (Boolean) 


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# File 'lib/decision_agent/dsl/operators/date_arithmetic_operators.rb', line 173

def self.compare_date_result?(actual, target, params)
  if params[:compare]
    case params[:compare].to_s
    when "eq", "=="
      (actual - target).abs < 1
    when "gt", ">"
      actual > target
    when "lt", "<"
      actual < target
    when "gte", ">="
      actual >= target
    when "lte", "<="
      actual <= target
    else
      false
    end
  elsif params[:eq]
    (actual - target).abs < 1
  elsif params[:gt]
    actual > target
  elsif params[:lt]
    actual < target
  elsif params[:gte]
    actual >= target
  elsif params[:lte]
    actual <= target
  else
    false
  end
end

.handle(op, actual_value, expected_value, context_hash, param_cache: nil, param_cache_mutex: nil) ⇒ Object 



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# File 'lib/decision_agent/dsl/operators/date_arithmetic_operators.rb', line 8

def self.handle(op, actual_value, expected_value, context_hash, param_cache: nil, param_cache_mutex: nil)
  case op
  when "add_days"
    # Adds days to a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :days, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date + (params[:days] * 86_400)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)

  when "subtract_days"
    # Subtracts days from a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :days, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date - (params[:days] * 86_400)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)

  when "add_hours"
    # Adds hours to a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :hours, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date + (params[:hours] * 3600)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)

  when "subtract_hours"
    # Subtracts hours from a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :hours, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date - (params[:hours] * 3600)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)

  when "add_minutes"
    # Adds minutes to a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :minutes, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date + (params[:minutes] * 60)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)

  when "subtract_minutes"
    # Subtracts minutes from a date and compares
    return false unless actual_value

    start_date = ConditionEvaluator.parse_date(actual_value)
    return false unless start_date

    params = parse_date_arithmetic_params(expected_value, :minutes, param_cache: param_cache, param_cache_mutex: param_cache_mutex)
    return false unless params

    result_date = start_date - (params[:minutes] * 60)
    target_date = if params[:target] == "now"
                    Time.now
                  else
                    ConditionEvaluator.parse_date(ConditionEvaluator.get_nested_value(context_hash, params[:target]))
                  end
    return false unless target_date

    compare_date_result?(result_date, target_date, params)
  end
  # Returns nil if not handled by this module
end

.parse_date_arithmetic_params(value, unit = :days, param_cache: nil, param_cache_mutex: nil) ⇒ Object

Parse date arithmetic parameters



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# File 'lib/decision_agent/dsl/operators/date_arithmetic_operators.rb', line 134

def self.parse_date_arithmetic_params(value, unit = :days, param_cache: nil, param_cache_mutex: nil)
  return nil unless value.is_a?(Hash)

  # Normalize to hash (already a hash, but normalize keys)
  normalized = Base.normalize_params_to_hash(value, [])

  cache = param_cache
  mutex = param_cache_mutex
  if cache.nil? || mutex.nil?
    cache = ConditionEvaluator.instance_variable_get(:@param_cache)
    mutex = ConditionEvaluator.instance_variable_get(:@param_cache_mutex)
  end

  cache_key = Base.normalize_param_cache_key(normalized, "date_arithmetic_#{unit}")
  cached = cache[cache_key]
  return cached if cached

  mutex.synchronize do
    cache[cache_key] ||= parse_date_arithmetic_params_impl(normalized, unit)
  end
end

.parse_date_arithmetic_params_impl(value, unit) ⇒ Object 



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# File 'lib/decision_agent/dsl/operators/date_arithmetic_operators.rb', line 156

def self.parse_date_arithmetic_params_impl(value, unit)
  unit_value = value[unit.to_s] || value[unit]
  return nil unless unit_value.is_a?(Numeric)

  {
    unit => unit_value.to_f,
    target: value[:target] || value["target"] || "now",
    compare: value[:compare] || value["compare"],
    eq: value[:eq] || value["eq"],
    gt: value[:gt] || value["gt"],
    lt: value[:lt] || value["lt"],
    gte: value[:gte] || value["gte"],
    lte: value[:lte] || value["lte"]
  }
end