# Copyright (c) 2017 crocoite contributors
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

"""
Command line interface
"""

import logging, argparse

from . import behavior
from .controller import SinglePageController, defaultSettings, ControllerSettings

def stateCallback (data):
    result = data['result']
    if data['status'] == 'PROGRESS':
        print (data['task_id'], result['step'])

def main ():
    parser = argparse.ArgumentParser(description='Save website to WARC using Google Chrome.')
    parser.add_argument('--browser', help='DevTools URL', metavar='URL')
    parser.add_argument('--timeout', default=10, type=int, help='Maximum time for archival', metavar='SEC')
    parser.add_argument('--idle-timeout', default=2, type=int, help='Maximum idle seconds (i.e. no requests)', dest='idleTimeout', metavar='SEC')
    parser.add_argument('--log-buffer', default=defaultSettings.logBuffer, type=int, dest='logBuffer', metavar='LINES')
    parser.add_argument('--max-body-size', default=defaultSettings.maxBodySize, type=int, dest='maxBodySize', help='Max body size', metavar='BYTES')
    parser.add_argument('--behavior', help='Comma-separated list of enabled behavior scripts',
            dest='enabledBehaviorNames',
            default=list (behavior.availableNames),
            choices=list (behavior.availableNames))
    group = parser.add_mutually_exclusive_group (required=True)
    group.add_argument('--output', help='WARC filename', metavar='FILE')
    group.add_argument('--distributed', help='Use celery worker', action='store_true')
    parser.add_argument('url', help='Website URL')

    args = parser.parse_args ()

    # prepare args for function
    distributed = args.distributed

    if distributed:
        from .task import archive
        settings = dict (maxBodySize=args.maxBodySize,
                logBuffer=args.logBuffer, idleTimeout=args.idleTimeout,
                timeout=args.timeout)
        result = archive.delay (url=args.url, settings=settings,
                enabledBehaviorNames=args.enabledBehaviorNames)
        r = result.get (on_message=stateCallback)
    else:
        logging.basicConfig (level=logging.INFO)
        settings = ControllerSettings (maxBodySize=args.maxBodySize,
                logBuffer=args.logBuffer, idleTimeout=args.idleTimeout,
                timeout=args.timeout)
        with open (args.output, 'wb') as fd:
            controller = SinglePageController (args.url, fd, settings=settings)
            controller.run ()

    return True