require "ebaytr/version"
# require 'yaml'
require "net/http"
require "uri"
module Ebaytr
  # CONFIG_FILE_PATH = %w(ebay_client.yml)
  # yml = YAML.load_file(Rails.root.join(*CONFIG_FILE_PATH))
  # yml = YAML::load(IO.read(path_to_yaml_file))
  mattr_accessor :token, 
    :app_name, :dev_name, :cert_name,
    :env, :url, :api, :site,  :global_id

  @@token = '' 
  @@app_name = '' 
  @@dev_name = '' 
  @@cert_name = '' 
  @@env = "development"
  @@url = "https://api.sandbox.ebay.com/ws/api.dll"
  @@api = "967"
  @@site = "US"
  @@global_id = "EBAY-US"

  def self.trading(request_name, hash={})
    if @@env=='production'
      @@url = "https://api.ebay.com/ws/api.dll" 
    else
      @@url = "https://api.sandbox.ebay.com/ws/api.dll" 
    end
    url = URI.parse(@@url)
    https = Net::HTTP.new(url.host,url.port)
    https.open_timeout = 60
    https.read_timeout = 60
    https.verify_mode = OpenSSL::SSL::VERIFY_PEER
    https.use_ssl = true
    req = Net::HTTP::Post.new(url.path)

    #取得站點ID
    fetch_site = site_map.select{|x| x[:site_code]==@@site }  
    puts "查無此站點： #{@@site}"  if fetch_site.size==0
    site_id = fetch_site[0][:site_id]

    req.add_field("X-EBAY-API-SITEID", site_id)
    req.add_field("X-EBAY-API-COMPATIBILITY-LEVEL", @@api)
    req.add_field("X-EBAY-API-CALL-NAME", request_name)
    req.add_field("X-EBAY-API-APP-NAME", @@app_name)
    req.add_field("X-EBAY-API-DEV-NAME", @@dev_name)
    req.add_field("X-EBAY-API-CERT-NAME", @@cert_name)
    
    token_hash = {
      RequesterCredentials: {
        "eBayAuthToken" => @@token
      }
    }
    
    show_request_xml   = 1 if hash[:show_request_xml].present?
    show_response_xml  = 1 if hash[:show_response_xml].present?
    show_request_json  = 1 if hash[:show_request_json].present?
    show_response_json = 1 if hash[:show_response_json].present?
    hash.except!(:show_request_xml, :show_response_xml, :show_request_json, :show_response_json)

    main_hash = {
      ErrorLanguage: "en_US",
      WarningLevel: "High"
    }.merge(hash)

    main_hash = main_hash.merge(token_hash) if @@token.present?

    # body = main_hash.to_xml(root: 'ReplaceRoot', skip_instruct: true).gsub('<ReplaceRoot>','').gsub('</ReplaceRoot>','')
    body = Gyoku.xml(main_hash, { key_converter: :camelcase })

    req.body = <<-XML
        <?xml version="1.0" encoding="utf-8"?>
        <#{request_name}Request xmlns="urn:ebay:apis:eBLBaseComponents">
        #{body}
        </#{request_name}Request>
      XML

    req.body = req.body.gsub("&#39;","'")

    # puts req.body 
    main_str = ''
    main_str += " #{hash[:ItemID]}" if hash[:ItemID].present?
    main_str += " #{hash[:SKU]}" if hash[:SKU].present?
    if hash[:Item].present?
      main_str += " #{hash[:Item][:SKU]}" if hash[:Item][:SKU].present?
    end
    if main_str.blank?
      main_str = hash.to_s[0,100]
    end
    puts " "
    puts "╒======================================="
    puts "│ [#{@@env}] EbayAPI Trading #{Time.now.to_s(:db)}"
    puts "│ [#{@@site}][#{request_name}]#{main_str}"
    puts "└---------------------------------------"
    
    # 若有丟 show_request_xml 參數，就顯示 xml
    puts req.body if show_request_xml.present?
    # 若有丟 show_request_json 參數，就顯示 json
    puts main_hash if show_request_json.present?

    res = https.request(req)

    # 特例 (attr 解析)
    if request_name==:GetOrders
      if res.body.index('<Subtotal currencyID').present?
        #e.g. "USD\">151.96"
        tmp_str = res.body[res.body.index('<Subtotal currencyID').to_i+22..res.body.index('</Subtotal>').to_i-1]
        if tmp_str.present?
          #e.g. "USD"
          attr_currency = tmp_str.split('"').first
          res.body = res.body.insert(res.body.index('<Subtotal currencyID').to_i, "<SubtotalAttrCurrencyID>#{attr_currency}</SubtotalAttrCurrencyID>")
        end
      end
    end

    object_hash = Hash.from_xml(res.body)["#{request_name}Response"]

    # 若有丟 show_response_xml 參數，就顯示 xml
    puts res.body if show_response_xml.present?
    # 若有丟 show_response_json 參數，就顯示 json
    puts object_hash if show_response_json.present?

    object_hash
  end

  def self.finding(request_name,hash = {})
    api_url = "https://svcs.ebay.com/services/search/FindingService/v1"

    url = URI.parse(api_url)
    https = Net::HTTP.new(url.host,url.port)
    https.use_ssl = true
    req = Net::HTTP::Post.new(url.path)
    req.add_field("X-EBAY-SOA-SECURITY-APPNAME", @@app_name)
    req.add_field("X-EBAY-SOA-OPERATION-NAME", request_name)
    req.add_field("X-EBAY-SOA-GLOBAL-ID", @@global_id)

    body = Gyoku.xml(hash)

    req.body = <<-XML
        <#{request_name}Request xmlns="http://www.ebay.com/marketplace/search/v1/services">
        #{body}
        </#{request_name}Request>
      XML

    req.body = req.body.gsub("&#39;","'")

    # puts req.body
    main_str = ''
    main_str += " #{hash[:itemID]}" if hash[:itemID].present?
    main_str += " #{hash[:SKU]}" if hash[:SKU].present?
    if hash[:item].present?
      main_str += " #{hash[:item][:SKU]}" if hash[:item][:SKU].present?
    end
    if main_str.blank?
      main_str = hash.to_s[0,100]
    end
    puts " "
    puts "╒========================================"
    puts "│ EbayAPI Finding #{Time.now.to_s(:db)}"
    puts "│ [#{@@global_id}][#{request_name}]#{main_str}"
    puts "└---------------------------------------"

    res = https.request(req)
    object_hash = Hash.from_xml(res.body)["#{request_name}Response"]
    object_hash
  end

  def self.site_map
    # http://developer.ebay.com/devzone/xml/docs/reference/ebay/types/sitecodetype.html
    [
      { site_id: 15,  site_code: 'Australia' },
      { site_id: 16,  site_code: 'Austria' },
      { site_id: 123, site_code: 'Belgium_Dutch' },
      { site_id: 23,  site_code: 'Belgium_French' },
      { site_id: 2,   site_code: 'Canada' },
      { site_id: 210, site_code: 'CanadaFrench' },
      { site_id: 100, site_code: 'eBayMotors' },
      { site_id: 71,  site_code: 'France' },
      { site_id: 77,  site_code: 'Germany' },
      { site_id: 201, site_code: 'HongKong' },
      { site_id: 203, site_code: 'India' },
      { site_id: 205, site_code: 'Ireland' },
      { site_id: 101, site_code: 'Italy' },
      { site_id: 207, site_code: 'Malaysia' },
      { site_id: 146, site_code: 'Netherlands' },
      { site_id: 211, site_code: 'Philippines' },
      { site_id: 212, site_code: 'Poland' },
      { site_id: 215, site_code: 'Russia' },
      { site_id: 216, site_code: 'Singapore' },
      { site_id: 186, site_code: 'Spain' },
      { site_id: 193, site_code: 'Switzerland' },
      { site_id: 3,   site_code: 'UK' },
      { site_id: 0,   site_code: 'US' },
    ]
  end
end