scottohara/loot

# Copyright (c) 2016 Scott O'Hara, oharagroup.net
# frozen_string_literal: true

# Security transaction
class SecurityTransaction < Transaction
    has_one :header, class_name: 'SecurityTransactionHeader', foreign_key: 'transaction_id', dependent: :destroy, autosave: true

    class << self
        def create_from_json(json)
            s = super
            s.build_header.update_from_json json
            s
        end
    end

    def update_from_json(json)
        super
        header.update_from_json json
        self
    end

    def method_missing(method, *args, &)
        validate_method?(method) do |match|
            public_send :"validate_#{match[2]}", match[1]
            true
        end || super
    end

    def respond_to_missing?(method, include_all = false)
        validate_method?(method) || super
    end

    def validate_presence(attr)
        errors.add :base, "#{attr.capitalize} can't be blank" if instance_eval "header.#{attr}.blank?", __FILE__, __LINE__ # e.g. header.quantity.blank?
    end

    def validate_absence(attr)
        errors.add :base, "#{attr.capitalize} must be blank" unless instance_eval "header.#{attr}.blank?", __FILE__, __LINE__ # e.g. header.quantity.blank?
    end

    def as_json(options = {})
        super.merge header.as_json
    end

    # :nocov:

    private unless ::Rails.env.eql? 'test'

    # :nocov:

    def validate_method?(method, &)
        /^validate_(.+)_(presence|absence)$/.match method.to_s, &
    end
end