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#
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import datetime as dt
import json

from ming.odm import FieldProperty, session
from paste.deploy.converters import asint
from tg import config

from allura.model import Artifact
from allura.lib import helpers as h


class Webhook(Artifact):
    class __mongometa__:
        name = 'webhook'
        unique_indexes = [('app_config_id', 'type', 'hook_url')]

    type = FieldProperty(str)
    hook_url = FieldProperty(str)
    secret = FieldProperty(str)
    last_sent = FieldProperty(dt.datetime, if_missing=None)

    def url(self):
        app = self.app_config.load()
        app = app(self.app_config.project, self.app_config)
        return '{}webhooks/{}/{}'.format(app.admin_url, self.type, self._id)

    def enforce_limit(self):
        '''Returns False if limit is reached, otherwise True'''
        if self.last_sent is None:
            return True
        now = dt.datetime.utcnow()
        config_type = self.type.replace('-', '_')
        limit = asint(config.get('webhook.%s.limit' % config_type, 30))
        if (now - self.last_sent) > dt.timedelta(seconds=limit):
            return True
        return False

    def update_limit(self):
        self.last_sent = dt.datetime.utcnow()
        session(self).flush(self)

    @classmethod
    def max_hooks(self, type, tool_name):
        type = type.replace('-', '_')
        limits = json.loads(config.get('webhook.%s.max_hooks' % type, '{}'))
        return limits.get(tool_name.lower(), 3)

    def __json__(self):
        return {
            '_id': unicode(self._id),
            'url': h.absurl(u'/rest' + self.url()),
            'type': unicode(self.type),
            'hook_url': unicode(self.hook_url),
            'mod_date': self.mod_date,
        }