#!/usr/bin/env python3.2
"""
loopquery

Execute some query in loop, waiting for some time interval before next run.

"""

from pgtoolkit import toolbase

import time


class LoopQueryTool(toolbase.SimpleTool):
    def __init__(self):
        toolbase.SimpleTool.__init__(self, name='loopquery', desc='Run query in loop.')
        self.parser.add_argument('-q', dest='query', type=str, help='Query to run.')
        self.parser.add_argument('-i', dest='interval', type=float, help='Run interval in seconds.')
        self.init()

    def main(self):
        while True:
            self.log.info('Executing: %s', self.args.query)
            with self.pgm.cursor('target') as curs:
                curs.execute(self.args.query)
            self.log.info('Done.')
            time.sleep(self.args.interval)


tool = LoopQueryTool()
tool.main()