processing_logic.txt

	
Logic

1.	Check that tweeter is not me (nuotl)    => (tweeter_name != NUOTL)
	Pass:	CONTINUE
	Fail: 	END
2.	Check that tweeter is approved			=> (approved == Y)
	Pass:	(add tweeter) CONTINUE
	Fail:	(add tweeter) (add message "Unapproved") END
3. 	Parse tweet 							=> (event != nil)
	Pass: 	(add event) CONTINUE
	Fail:	(add message messageFromTweetProcessor) END
4. 	Check that tweeter has a url 			=> (url != nil)
	Pass: 	CONTINUE
	Fail:	(add message "Need a URL")

END:
 - Persist tweeter if exists
 - Persist tweet if exists
 - Reply with message if exists


actions just pump through output
checkers return output along with boolean to indicate whether or not to continue in process


(logic 
	[
		{						:validate is-me?				}
		{:action parse-tweeter  :validate is-approved?			}
		{:action parse-tweet 	:validate parsed-successfully?	}
		{						:validate url-present?			}
		{:action clean-up-urls									}
	]
)

(validate [input output]
	{:input input :output output :success true :message "Meh meh meh"})

(action [input output]
	{:input input :output output :message "blah blah blah"})
	


3.1 Check that tweet has enough tokens
	Pass:	CONTINUE
	Fail:	(add message "Too short") END
3.2 Parse date
	Pass:	(add date to event) CONTINUE
	Fail:	(clear event) (add message "Date error") END
3.3 Parse time
	Pass:	(add time to event) CONTINUE
	Fail:	(clear event) (add message "Time error") END
3.4 Parse duration
	Pass:	(add duration to event) CONTINUE
	Fail:	(clear event) (add message "Duration error") END
3.5 Parse area
	Pass:	(add area to event) CONTINUE
	Fail:	(clear event) (add message "Area error") END