Class: TimeOverlap::Calculator

Inherits:
Object
  • Object
show all
Defined in:
lib/time_overlap/calculator.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(from:, to:, time_zone:, my_time_zone:, min_overlap:, expert: true, show_base: true) ⇒ Calculator

Returns a new instance of Calculator.



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# File 'lib/time_overlap/calculator.rb', line 4

def initialize(from:, to:, time_zone:, my_time_zone:, min_overlap:, expert: true, show_base: true)
  @current_year = Time.current.year
  @current_month = Time.current.month
  @current_day = Time.current.day

  @from = from
  @to = to
  @time_zone = time_zone
  @my_time_zone = my_time_zone
  @min_overlap = min_overlap
  @start_time = set_time(from)
  @end_time = set_time(to)
  @duration = (end_time - start_time).to_i / 60 / 60

  @expert = expert
  @show_base = show_base

  @data = {}
end

Class Method Details

.show(*args) ⇒ Object 



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# File 'lib/time_overlap/calculator.rb', line 24

def self.show(*args)
  self.new(*args).execute
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/time_overlap/calculator.rb', line 28

def execute
  offset = duration - min_overlap

  start_time_in_my_time_zone = start_time.in_time_zone(my_time_zone)
  end_time_in_my_time_zone = end_time.in_time_zone(my_time_zone)

  overlap_1_start_time = (start_time - offset * 60 * 60).in_time_zone(my_time_zone)
  overlap_1_end_time = (end_time - offset * 60 * 60).in_time_zone(my_time_zone)

  overlap_2_start_time = (end_time - min_overlap * 60 * 60).in_time_zone(my_time_zone)
  overlap_2_end_time = (overlap_2_start_time + duration * 60 * 60).in_time_zone(my_time_zone)

  @data = {
    original: {
      start: start_time,
      end: end_time
    },
    full_overlap: {
      start: start_time_in_my_time_zone,
      end: end_time_in_my_time_zone
    },
    overlap_1: {
      start: overlap_1_start_time,
      end: overlap_1_end_time,
    },
    overlap_2: {
      start: overlap_2_start_time,
      end: overlap_2_end_time
    },
    duration: duration,
    min_overlap: min_overlap,
    time_zone: time_zone,
    my_time_zone: my_time_zone
  }

  if overlap_1_start_time == overlap_2_start_time &&
    overlap_1_end_time == overlap_2_end_time
      @data.delete(:overlap_2)
  end


  throw_errors!

  unless @expert
    @data.delete(:overlap_1)
    @data.delete(:overlap_2)
  end

  present_result
end