#!/usr/bin/python

import sys
from tasklib.task import Task, TaskWarrior

time_attributes = ('wait', 'until', 'scheduled')

def is_new_local_recurrence_child_task(task):
    # Do not affect tasks not spun by recurrence
    if not task['parent']:
        return False

    # Newly created recurrence tasks actually have
    # modified field copied from the parent, thus
    # older than entry field (until their ID is generated)
    if (task['modified'] - task['entry']).total_seconds() < 0:
        return True

task = Task.from_input()
tw = TaskWarrior()

if is_new_local_recurrence_child_task(task):
    parent = tw.tasks.get(uuid=task['parent'])
    parent_due_shift = task['due'] - parent['due']
    for attr in time_attributes:
        if parent[attr]:
            task[attr] = parent[attr] + parent_due_shift

print task.export_data()