Class: RAPFLAG::History

Inherits:
Object
  • Object
show all
Defined in:
lib/rapflag/history.rb

Direct Known Subclasses

Bitfinex, Poloniex

Constant Summary collapse

DATE_FORMAT = 
'%Y.%m.%d'
DATE_TIME_FORMAT = 
'%Y.%m.%d %H:%M:%S'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wallet = 'trading', currency = 'USD') ⇒ History

Returns a new instance of History.



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# File 'lib/rapflag/history.rb', line 13

def initialize(wallet = 'trading', currency = 'USD')
  @wallet = wallet
  @currency = currency
end

Instance Attribute Details

#bfx_to_usd ⇒ Object (readonly)

Returns the value of attribute bfx_to_usd.



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# File 'lib/rapflag/history.rb', line 9

def bfx_to_usd
  @bfx_to_usd
end

#btc_to_usd ⇒ Object (readonly)

Returns the value of attribute btc_to_usd.



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# File 'lib/rapflag/history.rb', line 9

def btc_to_usd
  @btc_to_usd
end

#currency ⇒ Object (readonly)

Returns the value of attribute currency.



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# File 'lib/rapflag/history.rb', line 9

def currency
  @currency
end

#history ⇒ Object (readonly)

Returns the value of attribute history.



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# File 'lib/rapflag/history.rb', line 9

def history
  @history
end

#wallet ⇒ Object (readonly)

Returns the value of attribute wallet.



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# File 'lib/rapflag/history.rb', line 9

def wallet
  @wallet
end

Instance Method Details

#create_csv_file ⇒ Object 



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# File 'lib/rapflag/history.rb', line 18

def create_csv_file
  out_file = "output/#{self.class.to_s.split('::').last.downcase}/#{@currency}_#{@wallet}.csv"
  FileUtils.makedirs(File.dirname(out_file))
  CSV.open(out_file,'w',
      :write_headers=> true,
      :col_sep => ';',
      :headers => ['currency',
                  'amount',
                  'balance',
                  'description',
                  'date_time',
                  ] #< column header
    ) do |csv|
    @history.each do | hist_item|
      csv << [ hist_item['currency'],
              hist_item['amount'],
              hist_item['balance'],
              hist_item['description'],
                Time.at(hist_item['timestamp'].to_i).strftime(DATE_TIME_FORMAT),
              ]
    end
  end

  sums = {}
  @history.each do | hist_item|
    key = /^[^\d]+/.match(hist_item['description'])[0].chomp
    value = hist_item['amount'].to_f
    if sums[key]
      sums[key] +=  value
    else
      sums[key]  =  value
    end
  end

  puts
  puts "Summary for #{@wallet} #{@currency} (#{@history.size} entries}"
  sums.each do |key, value|
    puts " #{sprintf('%40s', key)} is #{value}"
  end
end

#create_summary ⇒ Object 



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# File 'lib/rapflag/history.rb', line 61

def create_summary
  @daily = {}
  @history.sort{|x,y| x['timestamp'] <=> y['timestamp']}.each do | hist_item|
    date = Time.at(hist_item['timestamp'].to_i).strftime(DATE_FORMAT)
    info = Struct::Daily.new(date, hist_item['amount'].to_f, hist_item['balance'].to_f, hist_item['description'])
    amount = hist_item['amount'].to_f
    balance = hist_item['balance'].to_f
    if @daily[date]
      old_balance = @daily[date]
      existing = @daily[date]
    else
      info.income = 0.0
      existing = info
    end
    if /Wire Withdrawal fee|Trading fees for|Margin Funding Payment on wallet/i.match( hist_item['description'])
      existing.income += amount
    end
    existing.balance = balance if balance != 0.0
    @daily[date] = existing
  end
  out_file = "output/#{self.class.to_s.split('::').last.downcase}/#{@currency}_#{@wallet}_summary.csv"
  FileUtils.makedirs(File.dirname(out_file))
  previous_date = nil
  saved_rate = nil
  saved_info = nil
  CSV.open(out_file,'w',
      :write_headers=> true,
      :col_sep => ';',
      :headers => ['currency',
                   'date',
                  'income',
                  'balance',
                  'rate',
                  'balance_in_usd',
                  ] #< column header
    ) do |csv|
    @daily.each do |date, info|
      strings = date.split('.')
      fetch_date = Date.new(strings[0].to_i, strings[1].to_i, strings[2].to_i)
      rate = get_usd_exchange(fetch_date, @currency)
      (1..(fetch_date - previous_date -1).to_i).each do |j|
        intermediate = (previous_date + j).strftime('%Y.%m.%d')
        csv << [@currency,
                intermediate,
                saved_info.income,
                saved_info.balance,
                saved_rate ? saved_rate : nil,
                saved_rate ? info.balance * get_usd_exchange(intermediate, @currency) : nil,
              ]
      end if previous_date
      csv << [@currency,
              date,
              info.income,
              info.balance,
              rate ? rate : nil,
              rate ? info.balance * get_usd_exchange(fetch_date, @currency) : nil,
             ]
      previous_date = fetch_date
      saved_info = info
      saved_rate = nil
    end
  end
end