Class: Capitalism::Journal

Inherits:
Object
  • Object
show all
Defined in:
lib/capitalism/journal.rb,
lib/capitalism/journal/version.rb

Defined Under Namespace

Classes: InvalidEvent

Constant Summary collapse

VERSION = 
'0.8.2'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(event_validator = ->(_event) { true }) ⇒ Journal

Returns a new instance of Journal.



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# File 'lib/capitalism/journal.rb', line 10

def initialize(event_validator = ->(_event) { true })
  @event_validator = event_validator
  @events = []
end

Instance Attribute Details

#event_validator ⇒ Object (readonly)

Returns the value of attribute event_validator.



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# File 'lib/capitalism/journal.rb', line 8

def event_validator
  @event_validator
end

#events ⇒ Object (readonly)

Returns the value of attribute events.



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# File 'lib/capitalism/journal.rb', line 8

def events
  @events
end

Instance Method Details

#add(timestamp: Time.now, value: true) ⇒ Object

Raises:



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# File 'lib/capitalism/journal.rb', line 15

def add(timestamp: Time.now, value: true)
  event = OpenStruct.new({ journal: self, timestamp: timestamp, value: value })
  raise InvalidEvent unless event_validator.call(event)
  @events << event
  nil
end

#add_timestamp(timestamp) ⇒ Object 



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# File 'lib/capitalism/journal.rb', line 26

def add_timestamp(timestamp)
  add(timestamp: timestamp)
end

#add_value(value) ⇒ Object 



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# File 'lib/capitalism/journal.rb', line 22

def add_value(value)
  add(value: value)
end

#delete_at(index) ⇒ Object 



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# File 'lib/capitalism/journal.rb', line 38

def delete_at(index)
  @events.delete_at(index)
  nil
end

#timestamps ⇒ Object 



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# File 'lib/capitalism/journal.rb', line 30

def timestamps
  events.map(&:timestamp)
end

#values ⇒ Object 



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# File 'lib/capitalism/journal.rb', line 34

def values
  events.map(&:value)
end