# Allen Institute Software License - This software license is the 2-clause BSD
# license plus a third clause that prohibits redistribution for commercial
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from django.db import models
from workflow_engine.mixins import Archivable, Nameable, Timestamped
import logging


class Workflow(Archivable, Nameable, Timestamped, models.Model):
    _logger = logging.getLogger('workflow_engine.models.workflow')

    ingest_strategy_class = models.CharField(max_length=255, null=True)
    disabled = models.BooleanField(default=False)
    use_pbs = models.BooleanField(default=False)

    # TODO: deprecate, different graph model
    def get_head_workflow_nodes(self):
        return self.workflownode_set.filter(
            sources=None
        )

    # TODO: move this to the view
    def update(self, name, description, current_disabled):
        prev_disabled = self.disabled
    
        if description == '':
            description = None

        self.name = name
        self.description = description
        self.disabled = current_disabled
        self.save()

        return prev_disabled
