module BittrexApi

# File lib/bittrex_api.rb, line 73
def self.balance( currency )
  get_account 'getbalance', currency: currency
end

# File lib/bittrex_api.rb, line 69
def self.balances
  get_account 'getbalances'
end

# File lib/bittrex_api.rb, line 53
def self.buy_limit( currency_pair, quantity, rate )
  get_market 'buylimit', market: currency_pair, quantity: quantity, rate: rate
end

# File lib/bittrex_api.rb, line 61
def self.cancel( uuid )
  get_market 'cancel', uuid: uuid
end

# File lib/bittrex_api.rb, line 29
def self.currencies
  get_public 'getcurrencies'
end

# File lib/bittrex_api.rb, line 77
def self.deposit_address( currency )
  get_account 'getdepositaddress', currency: currency
end

# File lib/bittrex_api.rb, line 98
def self.deposit_history( currency = nil )
  get_account 'getdeposithistory', currency: currency
end

# File lib/bittrex_api.rb, line 49
def self.market_history( currency_pair )
  get_public 'getmarkethistory', market: currency_pair
end

# File lib/bittrex_api.rb, line 37
def self.market_summaries
  get_public 'getmarketsummaries'
end

# File lib/bittrex_api.rb, line 41
def self.market_summary( currency_pair )
  get_public 'getmarketsummary', market: currency_pair
end

# File lib/bittrex_api.rb, line 25
def self.markets
  get_public 'getmarkets'
end

# File lib/bittrex_api.rb, line 65
def self.open_orders( currency_pair = nil )
  get_market 'getopenorders', market: currency_pair
end

# File lib/bittrex_api.rb, line 86
def self.order( uuid )
  get_account 'getorder', uuid: uuid
end

# File lib/bittrex_api.rb, line 45
def self.order_book( currency_pair, type = 'both', depth = 10 )
  get_public 'getorderbook', market: currency_pair, type: type, depth: depth
end

# File lib/bittrex_api.rb, line 90
def self.order_history( currency_pair = nil )
  get_account 'getorderhistory', market: currency_pair
end

# File lib/bittrex_api.rb, line 57
def self.sell_limit( currency_pair, quantity, rate )
  get_market 'selllimit', market: currency_pair, quantity: quantity, rate: rate
end

# File lib/bittrex_api.rb, line 11
def self.setup
  @configuration ||= Configuration.new
  yield( @configuration )
end

# File lib/bittrex_api.rb, line 33
def self.ticker( currency_pair )
  get_public 'getticker', market: currency_pair
end

# File lib/bittrex_api.rb, line 81
def self.withdraw( currency, quantity, address )
  get_account 'withdraw', currency: currency, quantity: quantity,
    address: address
end

# File lib/bittrex_api.rb, line 94
def self.withdrawal_history( currency = nil )
  get_account 'getwithdrawalhistory', currency: currency
end

# File lib/bittrex_api.rb, line 126
def self.get( method, command, params )
  if method != 'public'
    params['apikey'] = configuration.key
    params['nonce'] = Time.now.to_i
  end
  full_url = make_full_url(method, command, params)
  if method == 'public'
    RestClient.get(full_url)
  else
    sig = signature(full_url)
    RestClient.get(full_url, apisign: sig)
  end
end

# File lib/bittrex_api.rb, line 122
def self.get_account( command, params = {} )
  get 'account', command, params
end

# File lib/bittrex_api.rb, line 118
def self.get_market( command, params = {} )
  get 'market', command, params
end

# File lib/bittrex_api.rb, line 114
def self.get_public( command, params = {} )
  get 'public', command, params
end

# File lib/bittrex_api.rb, line 103
def self.make_full_url( method, command, params )
  url = "https://bittrex.com/api/v1.1/#{method}/#{command}"
  query = params.delete_if{ |k,v| v.nil? }.map{ |k,v| "#{k}=#{v}" }.join '&'
  "#{url}?#{query}"
end

# File lib/bittrex_api.rb, line 109
def self.signature( url )
  OpenSSL::HMAC.hexdigest('sha512', configuration.secret.encode("ASCII"),
                          url.encode("ASCII"))
end