# frozen_string_literal: true

module Qismo
  class Client
    include Qismo::Model
    include Qismo::Api

    VALID_OPTIONS = [:app_id, :secret_key, :url, :logger, :instrumentation, :timeout, :proxy]

    attr_accessor(*VALID_OPTIONS)

    def initialize(**opt)
      @app_id = opt[:app_id] || ENV["QISCUS_APP_ID"]
      @secret_key = opt[:secret_key] || ENV["QISCUS_SECRET_KEY"]
      @url = opt[:url] || ENV["QISCUS_OMNICHANNEL_URL"] || "https://qismo.qiscus.com"
      @logger = opt[:logger]
      @instrumentation = opt[:instrumentation]
      @timeout = opt[:timeout]
      @proxy = opt[:proxy]
    end

    def post(path, body = {})
      request(:post, path, json: body)
    end

    def post_upload(path, body = {})
      request(:post, form: body)
    end

    def get(path, **params)
      request(:get, path, params: params)
    end

    def request(method, path, **opt)
      res = connection.request(method, @url + path, opt.compact)
      if res.status.success?
        return JSON.parse(res.to_s, object_class: Data)
      end

      if res.status.server_error?
        raise InternalServerError.new("Qiscus Omnichannel server error", status_code: res.code, response_body: res.to_s)
      end

      if res.status.client_error?
        body = JSON.parse(res.to_s, object_class: Data)
        error = body.errors
        error = error.message if error.is_a?(Hash)

        error_klass_map = {
          400 => BadRequestError,
          401 => UnauthorizedError,
          402 => PaymentRequiredError,
          403 => ForbiddenError,
          404 => NotFoundError,
          429 => TooManyRequestError,
        }

        error_klass = error_klass_map[res.code] || HTTPRequestError
        raise error_klass.new(error, status_code: res.code, response_body: res.to_s)
      end
    end

    def connection
      http = HTTP

      unless @logger.nil?
        http = http.use(logging: @logger)
      end

      unless @instrumentation.nil?
        http = http.use(instrumentation: @instrumentation)
      end

      unless @timeout.nil?
        http = if @timeout.is_a?(Hash)
          http.timeout(**@timeout)
        else
          http.timeout(@timeout)
        end
      end

      unless @proxy.nil?
        http = http.via(*@proxy)
      end

      http.headers({
        "Qiscus-App-Id": @app_id,
        "Qiscus-Secret-Key": @secret_key,
        "User-Agent": user_agent.to_json,
      })
    end

    def user_agent
      {
        lib_version: Qismo::VERSION,
        lang: "ruby",
        lang_version: RUBY_VERSION,
        platform: RUBY_PLATFORM,
        engine: defined?(RUBY_ENGINE) ? RUBY_ENGINE : "",
      }
    end
  end
end