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
38
39
40
41
42
43
44
45
46
47
48
49
50
|
# frozen_string_literal: true
module Slack
class Notifier
class PayloadMiddleware
class Stack
attr_reader :notifier,
:stack
def initialize notifier
@notifier = notifier
@stack = []
end
def set *middlewares
middlewares =
if middlewares.length == 1 && middlewares.first.is_a?(Hash)
middlewares.first
else
middlewares.flatten
end
@stack = middlewares.map do |key, opts|
PayloadMiddleware.registry.fetch(key).new(*[notifier, opts].compact)
end
end
def call payload={}
result = stack.inject payload do |pld, middleware|
as_array(pld).flat_map do |p|
middleware.call(p)
end
end
as_array(result)
end
private
def as_array args
if args.respond_to?(:to_ary)
args.to_ary
else
[args]
end
end
end
end
end
end
|
