'''
Created on 19 mar 2020

@author: Emanuele Trabattoni
'''

import queue, time, socket, logging
from driver.tsc_commands import TSC_COMMANDS, TSC_STATUS, LINE_SEP
from driver.notifier import URL_ERR, URL_EVENT, URL_RESPONSE

SOCK_TIMEOUT = 2


def tsc_printer(q_in: queue.Queue, q_out: queue.Queue, q_cmd: queue.Queue, ip: str, port: int, logger: logging.getLogger):
	prt = None 
	
	def read_until(term):
		buf = ''

		c=prt.recv(1)
		while c is not term:
			buf = buf+c
			c = prt.recv(1)
		return buf
	
	def list_files():
		nonlocal prt
		prt.sendall(TSC_COMMANDS['LIST']+LINE_SEP)
		time.sleep(0.1)
		retval = read_until(0x1A).split(0x0D)
		q_out.put({'url':URL_RESPONSE,
				'msg': retval})
		
		pass
	
	def send_file(name=None, content=None, ftype=None):
		nonlocal prt
		if ftype == 'batch':
			to_send = TSC_COMMANDS['DOWNLOAD'].format(location='F,', name=f'"{name}"', content=LINE_SEP+content.join(LINE_SEP)+LINE_SEP)
		elif ftype == 'data':
			data = content.join(LINE_SEP)+LINE_SEP
			to_send = TSC_COMMANDS['DOWNLOAD'].format(name=f'"{name}"',size=','+len(data),content=data)
		prt.sendall(to_send)
		pass
	
	def delete_file(name=None):
		nonlocal prt 
		if ".BAS" in name:
			to_send  = TSC_COMMANDS['REMOVE'].format(location='F,', name=f'"{name}"')
		else:
			to_send  = TSC_COMMANDS['REMOVE'].format(name=f'"{name}"')
		prt.sendall(to_send+LINE_SEP)
		pass
	
	def move_file(name=None):
		#per default muove i file dalla RAM alla FLASH
		nonlocal prt
		to_send  = TSC_COMMANDS['MOVE'].format(name=f'"{name}"')
		prt.sendall(to_send+LINE_SEP)
		pass
	
	def run_batch(name=None):
		nonlocal prt
		to_send  = TSC_COMMANDS['RUN'].format(name=f'"{name}"')
		prt.sendall(to_send+LINE_SEP)
		pass
	
	def get_status():
		nonlocal prt
		prt.sendall(0x1B+TSC_COMMANDS['STATUS'])
		time.sleep(0.1)
		return TSC_STATUS[prt.recv(1)]


	while True: # connetti mantieni vivo il socket
		try:
			with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as prt:
				prt.connect((ip, port))
				while True:
					itm = q_in.get(block=True)
					cmd = itm['name']
					par = itm['parameters']
					if cmd == 'DOWNLOAD':
						send_file(**par)
						pass
					elif cmd == 'REMOVE':
						delete_file(**par)
						pass
					elif cmd == 'MOVE':
						move_file(**par)
						pass
					elif cmd == 'LIST':
						get_status()
						pass
					elif cmd == 'RUN':
						pass
					elif cmd == 'STATUS':
						pass
					else:
						logger.error("Comando stampante non riconosciuto")
		except socket.timeout as st:
			logger.error(f"Stampante {__name__} irraggiungibile:{st}")
			prt.close()
			del prt
		except socket.error as se:
			logger.error(f"Errore generico stamoante {__name__}: {se}")
			prt.close()
			del prt
		except Exception as e:
			logger.error("Errore generale inizializzando la stampante: {}".format(e))
			
	pass