# ------------------------------------------------------------------------------
# Copyright (c) 2010-2013, EVEthing team
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
#     Redistributions of source code must retain the above copyright notice, this
#       list of conditions and the following disclaimer.
#     Redistributions in binary form must reproduce the above copyright notice,
#       this list of conditions and the following disclaimer in the documentation
#       and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
# OF SUCH DAMAGE.
# ------------------------------------------------------------------------------

from django.db import models

# ------------------------------------------------------------------------------
# Task state
class TaskState(models.Model):
    READY_STATE = 0
    QUEUED_STATE = 1
    STATES = (
        (READY_STATE, 'Ready'),
        (QUEUED_STATE, 'Queued'),
    )

    keyid = models.IntegerField(db_index=True)
    url = models.CharField(max_length=64, db_index=True)
    parameter = models.IntegerField(db_index=True)
    state = models.IntegerField(db_index=True)

    mod_time = models.DateTimeField(db_index=True)
    next_time = models.DateTimeField(db_index=True)

    class Meta:
        app_label = 'thing'

    # Are we ready to queue?
    def queue_now(self, now):
        return ((self.state == self.READY_STATE) and self.next_time <= now)

# ------------------------------------------------------------------------------