import signal
import sqlite3
import sys
import time
import sql_requests
import utils
from EDMCLogging import get_main_logger
logger = get_main_logger()
db = sqlite3.connect('squads.sqlite')
with open('sql_schema.sql', 'r', encoding='utf-8') as schema_file:
db.executescript(''.join(schema_file.readlines()))
shutting_down: bool = False
"""
TODO:
1. Hooks for update (done)
2. Tags resolver
3. Proper shutdown (done)
4. capi.demb.design special api
5. FID tracking system
=========================DONT RELAY ON news_view=========================
Two modes:
1. Discover new squads
get last_known_id
tries = 0
failed: list
while True
if tries = 2
break
id_to_try = last_known_id + 1
update squad info with id_to_try and suppressing absence
if success
process triggers
tries = 0
for failed_squad in failed
delete(failed_squad)
failed_squad = list()
else (fail)
failed.append(id_to_try)
tries = tries + 1
sleep(3)
2. Update exists
get oldest updated existing squad
if DB is empty
return
update it
if squad still exists
process triggers
"""
def shutdown_callback(sig, frame) -> None:
logger.info(f'Planning shutdown by {sig} signal')
global shutting_down
shutting_down = True
def discover():
"""Discover new squads
:return:
"""
# id_to_try = utils.get_last_known_id(db)
# id_to_try = utils.get_next_id_for_discover(db) - 1
id_to_try = utils.get_next_hole_id_for_discover(db) - 1
tries: int = 0
failed: list = list()
TRIES_LIMIT_RETROSPECTIVELY: int = 5000
TRIES_LIMIT_ON_THE_TIME: int = 5
def smart_tries_limit(squad_id: int) -> int: # something smarter but still have to be better
if squad_id < 65000:
return TRIES_LIMIT_RETROSPECTIVELY
else:
return TRIES_LIMIT_ON_THE_TIME
"""
tries_limit, probably, should be something more smart because on retrospectively scan we can
have large spaces of dead squadrons but when we are discovering on real time, large value of tries_limit
will just waste our time and, probable, confuses FDEV
*Outdated but it still can be more smart*
"""
while True:
if shutting_down:
return
id_to_try = id_to_try + 1
# logger.debug(f'Starting discover loop iteration, tries: {tries} of {tries_limit}, id to try {id_to_try}, '
# f'failed list: {failed}')
if tries == smart_tries_limit(id_to_try):
break
squad_info = utils.update_squad_info(id_to_try, db, suppress_absence=True)
if isinstance(squad_info, dict): # success
logger.debug(f'Success discover for {id_to_try} ID')
tries = 0 # reset tries counter
for failed_squad in failed: # since we found an exists squad, then all previous failed wasn't exists
utils.properly_delete_squadron(failed_squad, db)
failed = list()
else: # fail, should be only False
logger.debug(f'Fail on discovery for {id_to_try} ID')
failed.append(id_to_try)
tries = tries + 1
time.sleep(3)
def update(squad_id: int = None, amount_to_update: int = 1):
"""
:param squad_id: update specified squad, updates only that squad
:param amount_to_update: update specified amount, ignores when squad_id specified
:return:
"""
if isinstance(squad_id, int):
logger.debug(f'Going to update one specified squadron: {squad_id} ID')
utils.update_squad_info(squad_id, db, suppress_absence=True)
# suppress_absence is required because if we updating squad with some high id it may just don't exists yet
return
logger.debug(f'Going to update {amount_to_update} squadrons')
squads_id_to_update: list = db.execute(sql_requests.select_squads_to_update, (amount_to_update,)).fetchall()
for single_squad_to_update in squads_id_to_update: # if db is empty, then loop will not happen
if shutting_down:
return
id_to_update: int = single_squad_to_update[0]
logger.debug(f'Updating {id_to_update} ID')
utils.update_squad_info(id_to_update, db)
time.sleep(3)
if __name__ == '__main__':
signal.signal(signal.SIGTERM, shutdown_callback)
signal.signal(signal.SIGINT, shutdown_callback)
def help_cli() -> str:
return """Possible arguments:
main.py discover
main.py update
main.py update amount <amount: int>
main.py update id <id: int>"""
logger.debug(f'argv: {sys.argv}')
if len(sys.argv) == 1:
print(help_cli())
exit(1)
elif len(sys.argv) == 2:
if sys.argv[1] == 'discover':
# main.py discover
logger.info(f'Entering discover mode')
discover()
exit(0)
elif sys.argv[1] == 'update':
# main.py update
logger.info(f'Entering common update mode')
update()
exit(0)
else:
print(help_cli())
exit(1)
elif len(sys.argv) == 4:
if sys.argv[1] == 'update':
if sys.argv[2] == 'amount':
# main.py update amount <amount: int>
try:
amount: int = int(sys.argv[3])
logger.info(f'Entering update amount mode, amount: {amount}')
update(amount_to_update=amount)
exit(0)
except ValueError:
print('Amount must be integer')
exit(1)
elif sys.argv[2] == 'id':
# main.py update id <id: int>
try:
id_for_update: int = int(sys.argv[3])
logger.info(f'Entering update specified squad: {id_for_update} ID')
update(squad_id=id_for_update)
exit(0)
except ValueError:
print('ID must be integer')
exit(1)
else:
logger.info(f'Unknown argument {sys.argv[2]}')
else:
print(help_cli())
exit(1)