/
response.rb
87 lines (68 loc) · 1.84 KB
/
response.rb
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# frozen_string_literal: true
require "oj"
module Panko
JsonValue = Struct.new(:value) do
def self.from(value)
JsonValue.new(value)
end
def to_json
value
end
end
class ResponseCreator
def self.value(value)
Panko::Response.new(value)
end
def self.json(value)
Panko::JsonValue.from(value)
end
def self.array_serializer(data, serializer, options = {})
merged_options = options.merge(each_serializer: serializer)
Panko::ArraySerializer.new(data, merged_options)
end
def self.serializer(data, serializer, options = {})
json serializer.new(options).serialize_to_json(data)
end
end
class Response
def initialize(data)
@data = data
end
def to_json(_options = nil)
writer = Oj::StringWriter.new(mode: :rails)
write(writer, @data)
writer.to_s
end
def self.create
Response.new(yield ResponseCreator)
end
private
def write(writer, data, key = nil)
return write_array(writer, data, key) if data.is_a?(Array)
return write_object(writer, data, key) if data.is_a?(Hash)
write_value(writer, data, key)
end
def write_array(writer, value, key = nil)
writer.push_array key
value.each { |v| write(writer, v) }
writer.pop
end
def write_object(writer, value, key = nil)
writer.push_object key
value.each do |entry_key, entry_value|
write(writer, entry_value, entry_key.to_s)
end
writer.pop
end
def write_value(writer, value, key = nil)
if value.is_a?(Panko::ArraySerializer) ||
value.is_a?(Panko::Serializer) ||
value.is_a?(Panko::Response) ||
value.is_a?(Panko::JsonValue)
writer.push_json(value.to_json, key)
else
writer.push_value(value, key)
end
end
end
end