# -*- coding: utf-8 *-*
"""
    API, version 0
    ~~~~~~~~~~~~~~

    Basic API object, implements core functions that should not be replaced in any child classes
"""
from config import *
import psycopg2

class API(object):
    """API, version 0 (core)"""
    version = 0
    PgDB = None

    def __init__(self):
        super(API, self).__init__()

    def get_version (self, request):
        """ Get current API version

            :Returns:
                api version number, integer
        """
        return self.version

    def get_server_time (self, request):
        """ Get current time on API server

            :Returns:
                date and time in format 2012-08-26 16:20:07, string
        """
        import datetime
        return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")

    def get_random_uuid (self, request):
        """ Generate random UUID

            :Returns:
                random UUID, string
        """
        from uuid import uuid4
        return str(uuid4())

    def __initDB(self):
        """ Initialize PostgreSQL connection """
        self.PgDB = psycopg2.connect(host=CONF_DB_HOST, database=CONF_DB_NAME, user=CONF_DB_USER, password=CONF_DB_PASSWORD)

    def __del__(self):
        if not self.PgDB == None and self.PgDB.closed == 0:
            self.PgDB.close()