module Chamomile::Model

# File lib/chamomile/model.rb, line 6
def self.included(base)
  base.extend(ClassMethods)
end

# File lib/chamomile/model.rb, line 30
def on_start
  nil
end

# File lib/chamomile/model.rb, line 26
def start
  nil
end

# File lib/chamomile/model.rb, line 34
def update(msg)
  raise NotImplementedError,
        "#{self.class} must implement #update(msg) returning a command or nil"
end

# File lib/chamomile/model.rb, line 39
def view
  ""
end

# File lib/chamomile/model.rb, line 44
def with(**changes)
  current = instance_variables.to_h { |v| [v.to_s.delete_prefix("@").to_sym, instance_variable_get(v)] }
  self.class.new(**current, **changes)
end