1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
module Chronic
class Season
# @return [MiniDate]
attr_reader :start
# @return [MiniDate]
attr_reader :end
# @param [MiniDate] start_date
# @param [MiniDate] end_date
def initialize(start_date, end_date)
@start = start_date
@end = end_date
end
# @param [Symbol] season The season name
# @param [Integer] pointer The direction (-1 for past, 1 for future)
# @return [Symbol] The new season name
def self.find_next_season(season, pointer)
lookup = [:spring, :summer, :autumn, :winter]
next_season_num = (lookup.index(season) + 1 * pointer) % 4
lookup[next_season_num]
end
# @param [Symbol] season The season name
# @return [Symbol] The new season name
def self.season_after(season)
find_next_season(season, +1)
end
# @param [Symbol] season The season name
# @return [Symbol] The new season name
def self.season_before(season)
find_next_season(season, -1)
end
end
end
|
