class Rowdb

# File lib/rowdb.rb, line 12
def initialize(file_path, adapter = :sync, js_var = "db")

  # Initialize the chosen adapter.
  @adapter = self.send(adapter, file_path, js_var)

  @chain = R_.chain(@adapter.read())
  @get_path = nil

end

# File lib/rowdb.rb, line 23
def defaults(data)
  if @chain.value().nil?
    @chain = R_.chain(data.transform_keys(&:to_sym))
  end
  self
end

# File lib/rowdb.rb, line 30
def get(path)
  @get_path = path
  @chain.get(path)
  self
end

# File lib/rowdb.rb, line 45
def push(value)
  if @get_path.nil?
    raise StandardError.new "You must get() before push()."
  end

  # Add value to end of array.
  adder = -> (items) {
    [*items, value]
  }
  R_.update(@chain.value(), @get_path, adder)

  self
end

# File lib/rowdb.rb, line 36
def set(path, value)
  @chain.set(path, value)
  self
end

# File lib/rowdb.rb, line 41
def value()
  @chain.value()
end

# File lib/rowdb.rb, line 59
def write()
  @adapter.write(@chain.value())
  self
end

# File lib/rowdb.rb, line 72
def sync(file_path, js_var)
  Sync.new(file_path, js_var)
end