# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4

#
# LICENSE
#
# Copyright (c) 2010-2013, GEM Foundation, G. Weatherill, M. Pagani,
# D. Monelli.
#
# The Hazard Modeller's Toolkit is free software: you can redistribute
# it and/or modify it under the terms of the GNU Affero General Public
# License as published by the Free Software Foundation, either version
# 3 of the License, or (at your option) any later version.
#
# You should have received a copy of the GNU Affero General Public License
# along with OpenQuake. If not, see <http://www.gnu.org/licenses/>
#
# DISCLAIMER
# 
# The software Hazard Modeller's Toolkit (hmtk) provided herein
# is released as a prototype implementation on behalf of
# scientists and engineers working within the GEM Foundation (Global
# Earthquake Model).
#
# It is distributed for the purpose of open collaboration and in the
# hope that it will be useful to the scientific, engineering, disaster
# risk and software design communities.
#
# The software is NOT distributed as part of GEM’s OpenQuake suite
# (http://www.globalquakemodel.org/openquake) and must be considered as a
# separate entity. The software provided herein is designed and implemented
# by scientific staff. It is not developed to the design standards, nor
# subject to same level of critical review by professional software
# developers, as GEM’s OpenQuake software suite.
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# Feedback and contribution to the software is welcome, and can be
# directed to the hazard scientific staff of the GEM Model Facility
# (hazard@globalquakemodel.org).
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# The Hazard Modeller's Toolkit (hmtk) is therefore distributed WITHOUT
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# -*- coding: utf-8 -*-

"""
"""

import abc
from hmtk.registry import CatalogueFunctionRegistry


class SeismicityOccurrence(object):
    '''Implements recurrence calculations for instrumental seismicity'''
    __metaclass__ = abc.ABCMeta

    @abc.abstractmethod
    def calculate(self, catalogue, config, completeness=None):
        """Implements recurrence calculation

        :param catalogue:
            An instance of :class:`hmtk.seismicity.catalogue`

        :param dict config:
            The config contains the necessary information to run a specific
            algorithm.

        :param numpy.ndarray completeness:
            The completeness matrix
        """
        return


OCCURRENCE_METHODS = CatalogueFunctionRegistry()
