class ZuoraConnect::AppInstanceBase

def self.decrypt_response(resp)
  OpenSSL::PKey::RSA.new(ZuoraConnect.configuration.private_key).private_decrypt(resp)
end

def attr_builder(field,val)
  singleton_class.class_eval { attr_accessor "#{field}" }
  send("#{field}=", val)
end

def build_task(task_data, session)
  @task_data = task_data
  @mode = @task_data["mode"]
  @task_data.each do |k,v|
    if k.match(/^(.*)_login$/)
      tmp = ZuoraConnect::Login.new(v)
      if !session.nil? && v["tenant_type"] == "Zuora"
        if tmp.entities.size > 0
          tmp.entities.each do |value|
            entity_id = value["id"]
            tmp.client(entity_id).current_session = session["#{self.id}::#{k}::#{entity_id}:session"] if !session.nil? && v["tenant_type"] == "Zuora" && session["#{self.id}::#{k}::#{entity_id}:session"]
          end
        else
          tmp.client.current_session = session["#{self.id}::#{k}:session"] if !session.nil? && v["tenant_type"] == "Zuora" && session["#{self.id}::#{k}:session"]
        end
      end
      @logins[k] = tmp
      self.attr_builder(k, @logins[k])
    elsif k == "options"
      v.each do |opt|
        @options[opt["config_name"]] = opt
      end
    elsif k == "user_settings"
      self.timezone =  v["timezone"]
      self.locale = v["local"]
    end
  end
end

def get_s3_file_url(key)
  signer = Aws::S3::Presigner.new(client: @s3_client)
  url = signer.presigned_url(:get_object, bucket: ZuoraConnect.configuration.s3_bucket_name, key: "#{ZuoraConnect.configuration.s3_folder_name}/#{key}")
end

def init
  @options = Hash.new
  @logins = Hash.new
  if ZuoraConnect.configuration.use_s3
    if ZuoraConnect.configuration.mode == "Development"
      @s3_client = Aws::S3::Resource.new(region: ZuoraConnect.configuration.aws_region,access_key_id: ZuoraConnect.configuration.dev_mode_access_key_id,secret_access_key: ZuoraConnect.configuration.dev_mode_secret_access_key)
    else
      @s3_client = Aws::S3::Resource.new(region: ZuoraConnect.configuration.aws_region)
    end
  end
  @valid = false
  self.attr_builder("timezone", ZuoraConnect.configuration.default_time_zone)
  self.attr_builder("locale", ZuoraConnect.configuration.default_locale)
  Apartment::Tenant.switch!(self.id)
  if( ActiveRecord::Migration.check_pending! != nil)
    Apartment::Migrator.migrate(self.id)
  end
  Thread.current[:appinstance] = self
end

def new_session(session: {}, username: self.access_token, password: self.refresh_token)
  @api_version = (username.include?("@") ? "v1" : "v2")
  @username = username
  @password = password
  @last_refresh = session["#{self.id}::last_refresh"]
  ## DEV MODE TASK DATA MOCKUP
  if ZuoraConnect.configuration.mode != "Production"
    self.options = ZuoraConnect.configuration.dev_mode_options
    ZuoraConnect.configuration.dev_mode_logins.each do |k,v|
      tmp = ZuoraConnect::Login.new(v)
      self.logins[k] = tmp
      self.attr_builder(k, tmp)
    end
    self.mode = ZuoraConnect.configuration.dev_mode_mode
  else
    if session.nil? || (!session.nil? && self.id != session["appInstance"].to_i) || session["#{self.id}::task_data"].blank? || ( session["#{self.id}::last_refresh"].blank? || session["#{self.id}::last_refresh"].to_i < ZuoraConnect.configuration.timeout.ago.to_i )
      Rails.logger.debug("[#{self.id}] REFRESHING - Session Nil") if session.nil?
      Rails.logger.debug("[#{self.id}] REFRESHING - AppInstance ID(#{self.id}) does not match session id(#{session["appInstance"].to_i})") if  (!session.nil? && self.id != session["appInstance"].to_i)
      Rails.logger.debug("[#{self.id}] REFRESHING - Task Data Blank") if session["#{self.id}::task_data"].blank?
      Rails.logger.debug("[#{self.id}] REFRESHING - No Time on Cookie") if session["#{self.id}::last_refresh"].blank?
      Rails.logger.debug("[#{self.id}] REFRESHING - Session Old") if (session["#{self.id}::last_refresh"].blank? || session["#{self.id}::last_refresh"].to_i < ZuoraConnect.configuration.timeout.ago.to_i )
      self.refresh(session)
    else
      Rails.logger.debug("[#{self.id}] REBUILDING")
      build_task(session["#{self.id}::task_data"], session)
    end
  end
  I18n.locale = self.locale
  Time.zone = self.timezone
  @valid = true
end

def oauth_expired?
  (expires_at < Time.now)
end

def refresh(session = nil)
  count ||= 0
  if self.api_version == "v1"
    response = HTTParty.get(ZuoraConnect.configuration.url + "/api/#{self.api_version}/tools/tasks/#{self.id}.json",:basic_auth => auth = {:username => self.username, :password => self.password})
  else
    response = HTTParty.get(ZuoraConnect.configuration.url + "/api/#{self.api_version}/tools/tasks/#{self.id}.json",:body => {:access_token => self.access_token})
  end
  if response.code == 200
    @last_refresh = Time.now.to_i
    build_task(JSON.parse(response.body), session)
  else
    raise ZuoraConnect::Exceptions::ConnectCommunicationError.new("Error Communicating with Connect", response.body, response.code)
  end
rescue
  if self.api_version == "v2" && count < 2 && response.code == 401
    self.refresh_oauth
    count += 1
    retry
  else
    raise
  end
end

def refresh_oauth
  Rails.logger.debug("[#{self.id}] REFRESHING - OAuth")
  params = {
            :grant_type => "refresh_token",
            :redirect_uri => ZuoraConnect.configuration.oauth_client_redirect_uri,
            :refresh_token => self.refresh_token
          }
  response = HTTParty.post("#{ZuoraConnect.configuration.url}/oauth/token",:body => params)
  response_body = JSON.parse(response.body)
  if response.code == 200
    self.refresh_token = response_body["refresh_token"]
    self.access_token = response_body["access_token"]
    self.oauth_expires_at = Time.at(response_body["created_at"].to_i) + response_body["expires_in"].seconds
    self.save
  else
    raise ZuoraConnect::Exceptions::ConnectCommunicationError.new("Error Refreshing Access Token", response.body, response.code)
  end
end

def save_data(session = Hash.new)
  self.logins.each do |key, login|
    if login.tenant_type == "Zuora"
      if login.available_entities.size > 1 && Rails.application.config.session_store != ActionDispatch::Session::CookieStore
        login.available_entities.each do |entity_key|
          session["#{self.id}::#{key}::#{entity_key}:session"] = login.client(entity_key).current_session
        end
      else
        session["#{self.id}::#{key}:session"] = login.client.current_session
      end
    end
  end
  session["#{self.id}::task_data"] = self.task_data
  session["#{self.id}::last_refresh"] = self.last_refresh
  session["appInstance"] = self.id
  return session
end

def send_email
end

def updateOption(optionId, value)
  if self.access_token && self.refresh_token
    if self.api_version == "v1"
      return HTTParty.get(ZuoraConnect.configuration.url + "/api/#{self.api_version}/tools/application_options/#{optionId}/edit?value=#{value}",:basic_auth => auth = {:username => self.username, :password => self.password})
    else
      return HTTParty.get(ZuoraConnect.configuration.url + "/api/#{self.api_version}/tools/application_options/#{optionId}/edit?value=#{value}",:body => {:access_token => self.username})
    end
  else
    return false
  end
end

def upload_to_s3(local_file,s3_path = nil)
  s3_path = local_file.split("/").last if s3_path.nil?
  obj = @s3_client.bucket(ZuoraConnect.configuration.s3_bucket_name).object("#{ZuoraConnect.configuration.s3_folder_name}/#{self.id.to_s}/#{s3_path}}")
  obj.upload_file(local_file)
end