Class: FortuneTeller::Utils::SocialSecurity

Inherits:
Object
  • Object
show all
Defined in:
lib/fortuneteller/utils/social_security.rb

Overview

Calculates adjusted benefit from PIA Based on www.ssa.gov/oact/quickcalc/early_late.html 11/16/2017

Defined Under Namespace

Classes: StartDateBounds

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dob:, start_month:) ⇒ SocialSecurity

Returns a new instance of SocialSecurity.



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# File 'lib/fortuneteller/utils/social_security.rb', line 9

def initialize(dob:, start_month:)
  @dob = dob
  @adjusted_dob = (dob.day == 1 ? dob.yesterday : dob)
  @start_month = start_month.at_beginning_of_month
end

Instance Attribute Details

#pia ⇒ Object

Returns the value of attribute pia.



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# File 'lib/fortuneteller/utils/social_security.rb', line 7

def pia
  @pia
end

Instance Method Details

#calculate_benefit ⇒ Object 



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# File 'lib/fortuneteller/utils/social_security.rb', line 64

def calculate_benefit
  frm = full_retirement_month
  puts "FRM: #{frm}"
  return @pia if @start_month == frm

  if(@start_month < frm)
    min_rm = min_retirement_month
    raise bounds_error(start: @start_month, min: min_rm) if @start_month < min_rm
    early_benefit( months: month_diff(@start_month, frm) )
  else
    max_rm = max_retirement_month
    raise bounds_error(start: @start_month, max: max_rm) if @start_month > max_rm
    late_benefit( months: month_diff(frm, @start_month) )
  end
end

#estimate_pia(current_salary:, annual_raise:) ⇒ Object 



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# File 'lib/fortuneteller/utils/social_security.rb', line 15

def estimate_pia(current_salary:, annual_raise:)
  year = Date.today.year
  last_year = @start_month.year
  salary_history = {year => current_salary}
  ((@dob.year+18)..(year-1)).reverse_each do |y|
    salary_history[y] = (salary_history[y+1]/annual_raise).floor
  end
  if(last_year > year)
    ((year+1)..last_year).each do |y|
      salary_history[y] = (salary_history[y-1]*annual_raise).floor
    end
  end
  salaries = salary_history.map{|y, s| s*indexing_factors[y]}
  aime = (salaries.sort.last(35).reduce(:+)/(35.0*12)).floor
  puts "AIME #{aime}"

  if aime > bend_points[1]
    pia_62 = (0.9*bend_points[0]+0.32*(bend_points[1]-bend_points[0])+0.15*(aime-bend_points[1])).floor
  elsif aime > bend_points[0]
    pia_62 = (0.9*bend_points[0]+0.32*(aime-bend_points[0])).floor
  else
    pia_62 = (0.9*aime).floor
  end

  pia_adjusted = pia_62
  ((@dob.year+63)..@start_month.year).each do |y|
    pia_adjusted = (pia_adjusted*(100+COLA_1975_START[y-1-1975])/100.0).floor
  end

  @pia = pia_adjusted
end

#fra_pia=(fra_pia) ⇒ Object 



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# File 'lib/fortuneteller/utils/social_security.rb', line 47

def fra_pia=(fra_pia)
  pia_adjusted = fra_pia
  if @start_month.year < full_retirement_month.year
    (@start_month.year..(full_retirement_month.year-1)).each do |y|
      pia_adjusted = (pia_adjusted/((100+COLA_1975_START[y-1975])/100.0)).floor
    end
  elsif @start_month.year > full_retirement_month.year
    puts "START GREATER"
    ((full_retirement_month.year+1)..@start_month.year).each do |y|
      puts "START: #{@start_month.year}, YEAR: #{y}"
      puts "PIA ADJ = #{pia_adjusted}"
      pia_adjusted = (pia_adjusted*(100+COLA_1975_START[y-1-1975])/100.0).floor
    end
  end
  @pia = pia_adjusted
end