Dena/app/services/vandar_service.rb

# vandar is payment proxy
module Vandar
  # data keys are:
  # api_key	string	required
  # amount	Integer	required
  # callback_url	String	required
  # mobile_number	String	optional
  # factorNumber	String	optional
  # description	String	optional
  # valid_card_number	String	optional
  module Deposit
    def generate_token(data)
      url = 'https://ipg.vandar.io/api/v3/send'
      # POST JSON content
      data.merge!(api_key: VandarService::API_KEY)
      parse Faraday.post(url, data.to_json, 'Content-Type' => 'application/json')
    end

    # step two
    # handle by ui, open payment page by token
    # METHOD: get
    # URL: https://ipg.vandar.io/v3/{token}

    # step three
    def transaction(token)
      url = 'https://vandar.io/api/ipg/2step/transaction'
      data = { api_key: VandarService::API_KEY, token: token }
      # POST JSON content
      parse Faraday.post(url, data.to_json, 'Content-Type' => 'application/json')
    end

    # step four
    def verify(token)
      url = 'https://ipg.vandar.io/api/v3/verify'
      data = { api_key: VandarService::API_KEY, token: token }
      # POST JSON content
      parse Faraday.post(url, data.to_json, 'Content-Type' => 'application/json')
    end
  end

  # vandar withdraw fiat
  module Withdraw
    def list_withdraw
      url = "https://api.vandar.io/v2.1/business/#{VandarService::BUSINESS_NAME}/settlement"
      headers = { 'Content-Type' => 'application/json', 'authorization' => "Bearer #{@login_token}" }
      Faraday.get(url, nil, headers).body
    end

    def create_withdraw(data)
      # amount:  تومان و بزرگتر یا مساوی 5000
      url = "https://api.vandar.io/v3/business/#{VandarService::BUSINESS_NAME}/settlement/store"
      headers = { 'Content-Type' => 'application/json', 'authorization' => "Bearer #{@login_token}" }

      # POST JSON content
      data.merge!(track_id: ::SecureRandom.uuid)
      self.class.parse Faraday.post(url, data.to_json, headers)
    end

    def info_withdraw(id)
      url = "https://api.vandar.io/v2.1/business/#{VandarService::BUSINESS_NAME}/settlement/#{id}"
      headers = { 'Content-Type' => 'application/json', 'authorization' => "Bearer #{@login_token}" }
      self.class.parse Faraday.get(url, nil, headers)
    end

    def delete_withdraw
      url = "https://api.vandar.io/v2.1/business/#{VandarService::BUSINESS_NAME}/settlement/{transaction_id}"
      headers = { 'Content-Type' => 'application/json', 'authorization' => "Bearer #{@login_token}" }
      self.class.parse Faraday.delete(url, nil, headers)
    end
  end

  # for login in Vandar Account
  module Login
    MOBILE = ENV.fetch('VANDAR_MOBILE') || raise('please set Vandar mobile')
    PASSWORD = ENV.fetch('VANDAR_PASSWORD') || raise('please set Vandar password')
    def login
      return @login_token if @login_token.present?

      url = 'https://api.vandar.io/v3/login'
      # POST JSON content
      data = { mobile: MOBILE, password: PASSWORD }
      response = self.class.parse Faraday.post(url, data.to_json, 'Content-Type' => 'application/json')
      @login_token = response.dig('access_token') || raise('login in vandar accrued error')
      ::Rails.cache.write('vandar_login_token', @login_token, expires_in: 345_600)
      @login_token
    end
  end


  # related to Vandar transactions
  module Transaction
    # Name	Type	Status
    # fromDate	String	optional
    # toDate	String	optional
    # statusKind	String	optional
    # status	String	optional
    # channel	String	optional
    # formId	String	optional
    # ref_id	String	optional
    # tracking_code	String	optional
    # per_page	String	optional
    # q	String	optional
    #
    #
    # status
    # 1: نشان دهنده تراکنش با وضعیت موفق
    # - 1: نشان دهنده تراکنش با وضعیت ناموفق
    # 3 : نشان دهنده تراکنش با وضعیت درحال انجام
    # 2 : نشان دهنده تسویه با وضعیت موفق
    # -2 : نشان دهنده تسویه با وضعیت درحال انجام
    # -3 : نشان دهنده تسویه با وضعیت ناموفق
    # -4 : نشان دهنده تسویه با وضعیت لغو شده
    # 5 : نشان دهنده تراکنش واریزی از نوع انتقال وجه داخلی
    # -5 : نشان دهنده تراکنش خروجی از نوع انتقال وجه داخلی
    # 6 : نشان دهنده تراکنش نوع حق اشتراک

    def list_transactions(**filters)
      url = "https://api.vandar.io/v2/business/#{VandarService::BUSINESS_NAME}/transaction"
      headers = { 'Content-Type' => 'application/json', 'authorization' => "Bearer #{@login_token}" }
      response = Faraday.get(url, filters, headers)
      self.class.parse response
    end


  end
end


class VandarService
  API_KEY = ENV.fetch('VANDAR_API_KEY') || raise('please set Vandar Api_Key')
  BUSINESS_NAME = ENV.fetch('VANDAR_BUSINESS_NAME') || 'developers'
  SUCCESS_WITHDRAW = [2].freeze
  UNSUCCESS_WITHDRAW = [-3, -4].freeze

  attr_accessor :login_token

  def initialize
    @login_token = ::Rails.cache.read('vandar_login_token') || login
  end

  extend Vandar::Deposit
  include Vandar::Login
  include Vandar::Withdraw
  include Vandar::Transaction

  class << self
    # # step one
    def parse(response)
      raise 'response is empty' unless response.present?
      raise "unexpected response status #{response.status}" unless response.status == 200

      JSON.parse(response.body)
    end
  end
end