require "lucid_http/version"
require "http"
require "delegate"
require "json"

module LucidHttp
  def self.target_url
    @target_url ||= ENV.fetch("TARGET_URL") { "http://localhost:9292" }
  end

  def self.target_url=(url="http://localhost:9292")
    @target_url = url
  end

  class PrettyStatus < SimpleDelegator
    def inspect
      to_s
    end
  end
end

def response
  @__lucid_http__res
end

def __lucid_http__clean
  instance_variables.grep(/@__lucid_http__/).each do |v|
    remove_instance_variable(v.to_sym)
  end
end

def __lucid_http__setup(url, action: :get, follow: false, form: nil, json: false, **opts)
  __lucid_http__clean
  @__lucid_http__client = HTTP.persistent(LucidHttp.target_url)
  if json
    @__lucid_http__client = @__lucid_http__client.accept("application/json")
  end
  if follow
    @__lucid_http__client = @__lucid_http__client.follow
  end

  @__lucid_http__path = @__lucid_http__client.default_options.persistent + url
  @__lucid_http__res = @__lucid_http__client.send(action.to_sym, url, form: form)
  @__lucid_http__json = json
end

def body
  @__lucid_http__body ||= __lucid_http__get_body
end

def __lucid_http__get_body
  original_body = response.body.to_s
  if !@__lucid_http__json
    original_body
  else
    JSON.parse(original_body)
  end
end

def status
  @__lucid_http__status = LucidHttp::PrettyStatus.new(response.status)
end

def content_type
  response.content_type.mime_type
end

def path
  @__lucid_http__path
end

def error
  if status.to_i == 500
    body.split("\n").first
  else
    "No 500 error found."
  end
end

%i[get post put patch delete head options].each do |verb|
  define_method(verb.upcase) do |url, **opts|
    __lucid_http__setup(url, action: verb, **opts)
    new_body = case status.to_i
               when 200
                 body
               else
                 "STATUS: #{status}"
               end

    new_body
  end
end

# def POST(url, **opts)
#   __lucid_http__setup(url, action: :post, **opts)
#   new_body = case status.to_i
#              when 200
#                body
#              else
#                "STATUS: #{status}"
#              end

#   new_body
# end