# frozen_string_literal: true

# Redis > .env > default
# FeatureToggle.fetch('ROLE_MAPPING') { { "read" => ["list", "read"], "list" => ["list", "read", "write"] } }
# FeatureToggle.fetch('WHITELIST') { ["23","33","43","53"] }
# FeatureToggle.fetch('HACK_ENABLE') { false }
module FeatureToggle
  class << self
    def fetch(key)
      return read(key) if exists?(key)

      load ENV.fetch(key.upcase) { block_given? ? yield : nil }
    end

    def read(key)
      data = client.get(key.upcase)
      data = ENV.fetch(key.upcase) { block_given? ? yield : nil } if data.nil?
      load data
    end

    def write(key)
      return nil unless block_given?

      data = yield
      body = data.is_a?(String) ? data : Oj.dump(data)
      client.set(key.upcase, body)
      data
    end

    def delete(key)
      if exists?(key)
        data = read(key)
        client.del(key.upcase)
        data
      end
    end

    def keys
      client.keys
    end

    private

      def load(data)
        return Oj.load(data) if json?(data)
        return data.to_b if bool?(data)

        data
      end

      def exists?(key)
        client.exists(key.upcase)
      end

      def json?(data)
        data =~ %r(^(\{|\[)(.*)(\]|\})$)
      end

      def bool?(data)
        data =~ %r((true|false|yes|no|on|off))i
      end

      def client
        @client ||= Redis::Namespace.new(NAMESPACE, redis: Redis.current)
      end

      # redis key
      NAMESPACE = [Rails.application.class.parent_name.underscore, Rails.env, "FeatureToggle"].join(":").freeze
  end
end

tus-ruby-server

app/models/concerns/soft_delete.rb

这个人？他可是 sidekiq 的作者

场地里不提供WiFi

shrine + tus + minio

行情

你自己搞个博客不如去 “简书” 开专栏

我用 Octotree

最近招人的公司不少呢