require 'active_record'

module CanvasSync
  module MiscHelper
    MigrationClass = Rails.version < '5.0' ? ActiveRecord::Migration : ActiveRecord::Migration[4.2]

    def self.to_boolean(v)
      if Rails.version < '5.0'
        ActiveRecord::Type::Boolean.new.type_cast_from_user(v)
      else
        ActiveRecord::Type::Boolean.new.deserialize(v)
      end
    end

    def self.invoke_task(job)
      job = job.symbolize_keys

      job_args = job[:args] || job[:parameters] || []
      job_kwargs = job[:kwargs] || {}

      if (mthd = job[:method]) && !(job[:class] || job[:instance_of] || job[:model])
        if mthd.include?('#')
          clazz, method = clazz.split("#")
          job[:instance_of] = clazz
          job[:method] = method
        elsif mthd.include?('.')
          clazz, method = mthd.split(".")
          job[:class] = clazz
          job[:method] = method
        end
      end

      if job[:model]
        # TODO Support globalid
        model_class = load_constant(job[:model])
        find_by = job[:find_by]
        target = find_by.is_a?(Hash) ? model_class.find_by(**find_by) : model_class.find_by(id: find_by)
        target.send(job[:method], *job_args, **job_kwargs)
      elsif job[:class]
        target = load_constant(job[:class])
        target.send(job[:method], *job_args, **job_kwargs)
      elsif job[:instance_of]
        target = load_constant(job[:instance_of]).new
        target.send(job[:method], *job_args, **job_kwargs)
      elsif job[:job]
        job_class = load_constant(job[:job])
        job_class = job_class.set(job[:options]) if job[:options].present?
        if job_class < ActiveJob::Base
          job_class.perform_later(*job_args, **job_kwargs)
        else
          job_args << job_kwargs.symbolize_keys if job_kwargs
          # job_args[-1] = job_args[-1].symbolize_keys if job_args[-1].is_a?(Hash)
          job_class.perform_async(*job_args)
        end
      end
    end

    def self.load_constant(const)
      const = const.constantize if const.is_a?(String)
      const
    end
  end
end