"""Constants for backoff strategies."""
from config import ASYNC_CHUNK_SIZE

# The worst case backoff time for a failing graphql call is 7s.
# We need to make sure that the timeout for the any task is greater than
# the backoff time for the worst case scenario for each GraphQL call
# multiplied by the number of calls per task (ASYNC_CHUNK_SIZE). We should
# also add a little buffer for software lag / network delays. There is one
# call per task, so the timeout should be:
#
#   (WORST_CASE_BACKOFF * CALLS_PER_TASK * ASYNC_CHUNK_SIZE) + BUFFER
#
WORST_CASE_BACKOFF = 7  # Seconds
CALLS_PER_TASK = 1
BUFFER = ASYNC_CHUNK_SIZE
# TASK_TIMEOUT = max(
#     (WORST_CASE_BACKOFF * CALLS_PER_TASK * ASYNC_CHUNK_SIZE) + BUFFER,
#     30
# )
TASK_TIMEOUT = 600  # Seconds

# Backoff strategy knobs
BASE = 3
FACTOR = 2
MAX_TRIES = 10
MAX_TIME = 30
MAX_VALUE = 10