Class: Rotation::Topic

Inherits:
Object
  • Object
show all
Defined in:
lib/rotation/topic.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(topic_name, params) ⇒ Topic

Returns a new instance of Topic.



5
6
7
8
9
10
11
 
# File 'lib/rotation/topic.rb', line 5

def initialize(topic_name, params)
  @name       = topic_name
  @duration   = params["duration"]
  @start_date = params["start_date"]
  @first      = params["first"]
  @candidates = params["candidates"]
end

Instance Attribute Details

#candidates ⇒ Object

Returns the value of attribute candidates.



3
4
5
 
# File 'lib/rotation/topic.rb', line 3

def candidates
  @candidates
end

#duration ⇒ Object

Returns the value of attribute duration.



3
4
5
 
# File 'lib/rotation/topic.rb', line 3

def duration
  @duration
end

#first ⇒ Object

Returns the value of attribute first.



3
4
5
 
# File 'lib/rotation/topic.rb', line 3

def first
  @first
end

#name ⇒ Object

Returns the value of attribute name.



3
4
5
 
# File 'lib/rotation/topic.rb', line 3

def name
  @name
end

#start_date ⇒ Object

Returns the value of attribute start_date.



3
4
5
 
# File 'lib/rotation/topic.rb', line 3

def start_date
  @start_date
end

Instance Method Details

#cycle(unit_delta) ⇒ Object 



22
23
24
 
# File 'lib/rotation/topic.rb', line 22

def cycle(unit_delta)
  (unit_delta / duration.to_f).floor
end

#responsible(date = Date.today) ⇒ Object 



13
14
15
 
# File 'lib/rotation/topic.rb', line 13

def responsible(date = Date.today)
  candidates[responsible_index(date)]
end

#responsible_index(date) ⇒ Object 



17
18
19
20
 
# File 'lib/rotation/topic.rb', line 17

def responsible_index(date)
  unit_delta = week_delta(start_date, date)
  (cycle(unit_delta) + candidates.index(first)) % candidates.size
end

#week_delta(d1, d2) ⇒ Object 



26
27
28
29
 
# File 'lib/rotation/topic.rb', line 26

def week_delta(d1, d2)
  year_difference = (d2.year - d1.year) * 52
  year_difference + (d2 - d2.wday).yday / 7 - (d1 -d1.wday).yday / 7
end