main.py

import mailfetch
import time
import config
import logger
import user_tracking as users

import slicer
import converter
#import validator
import printer
"""
Each step of the module should be a function that takes a PrintJob object, and returns a new PrintJob object. See pipeline.py for more info.
"""
def main():
    # read the config file. We'll need this later.
    # also caches the file for stages
    configrc = config.read_config()
    
    udb = users.UserDB()
    
    # set up mailfetch. Just fetches the password for now.
    # v option is temporary, and prevents pipeline from flooding console
    # should eventually be replaced by proper logging system
    plogger = logger.Logger('pipeline')
    mailfetch.initialize()
    
    while True:
        try:
            poll = mailfetch.poll()     
            # mailfetch.poll gets list of printjobs to work on
            for job in poll:
                
                email = job.sender
                
                '''user = udb.find_user(email)
                
                if user != None:
                    user.jobs_submitted += 1
                else:
                    user = users.User(email, 1)
                    
                udb.add_user(user)'''
            
                #pipeline goes here
                #each step of the pipeline sets the status and then runs the stage
                #the stage should store a new file if one is created, but nothing else.
                job.status = 'converting'
                converter.convert(job)
                
                #job.status = 'validating'
                #validator.validate(job)
                
                job.status = 'slicing'
                slicer.slice(job)
                
                job.status = 'printing'
                printer.send_job(job)
        except TypeError:
            return  
        # wait a while. This lets the computer do something else
        delay_time = float(configrc['Pipeline']['poll_frequency'])
        time.sleep(delay_time)
        
if __name__ == '__main__':
    main()