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# frozen_string_literal: true
module Aws
module Endpoints
# @api private
class Function
def initialize(fn:, argv:)
@fn = fn
@argv = build_argv(argv)
end
attr_reader :fn
attr_reader :argv
def call(parameters, assigns)
args = []
@argv.each do |arg|
if arg.is_a?(Reference)
args << arg.resolve(parameters, assigns)
elsif arg.is_a?(Function)
args << arg.call(parameters, assigns)
else
if arg.is_a?(String)
arg = Templater.resolve(arg, parameters, assigns)
end
args << arg
end
end
case @fn
when 'isSet'
Matchers.set?(*args)
when 'not'
Matchers.not(*args)
when 'getAttr'
Matchers.attr(*args)
when 'substring'
Matchers.substring(*args)
when 'stringEquals'
Matchers.string_equals?(*args)
when 'booleanEquals'
Matchers.boolean_equals?(*args)
when 'uriEncode'
Matchers.uri_encode(*args)
when 'parseURL'
Matchers.parse_url(*args)
when 'isValidHostLabel'
Matchers.valid_host_label?(*args)
when 'aws.partition'
Matchers.aws_partition(*args)
when 'aws.parseArn'
Matchers.aws_parse_arn(*args)
when 'aws.isVirtualHostableS3Bucket'
Matchers.aws_virtual_hostable_s3_bucket?(*args)
else
raise "Function not found: #{@fn}"
end
end
private
def build_argv(argv_json)
argv_json.each.with_object([]) do |arg, argv|
argv << if arg.is_a?(Hash) && arg['ref']
Reference.new(ref: arg['ref'])
elsif arg.is_a?(Hash) && arg['fn']
Function.new(fn: arg['fn'], argv: arg['argv'])
else
arg
end
end
end
end
end
end
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