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path: root/swiftstory/SwiftStory.py
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#!/usr/bin/env python3

import argparse
import asyncio
import contextlib
import json
import websockets

import swiftstory.GameManager
from swiftstory.Client import Client
from swiftstory.Status import error


game_manager = swiftstory.GameManager.GameManager()


async def message_received_handler(client, message):
    try:
        json_msg = json.loads(message)
    except JSONDecodeError:
        res = error('badly formatted json')
    else:
        op = json_msg['op']
        if op == 'join_game':
            try:
                game_name = json_msg['game_name']
            except KeyError:
                res = error('field `game_name\' is required')
            else:
                lang = json_msg.get('lang')
                res = await client.join_game(game_name, lang)
        elif op == 'view_player_cards':
            res = client.view_player_cards()
        elif op == 'view_black_card':
            res = client.view_black_card()
        elif op == 'view_played_cards':
            res = client.view_played_cards()
        elif op == 'pick_black_card':
            res = await client.pick_black_card()
        elif op == 'designate_card':
            card_id = None
            try:
                card_id = int(json_msg['card_id'])
            except (KeyError, TypeError):
                pass
            finally:
                res = await client.designate_card(card_id)
        elif op == 'play_white_card':
            try:
                card_id = int(json_msg['card_id'])
            except KeyError:
                res = error('field `card_id\' is required')
            else:
                res = await client.play_white_card(card_id)
        elif op == 'collect_cards':
            res = await client.collect_cards()
        else:
            res = error('invalid command')

    await client.socket.send(res)


async def swiftstory(websocket, path):
    client = Client(websocket, game_manager)

    with contextlib.suppress(websockets.exceptions.ConnectionClosed):
        async for message in client.socket:
            await message_received_handler(client, message)

    await client.disconnect()


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--listen', type=str, default='0.0.0.0')
    parser.add_argument('--port', type=int, default=1236)
    args = vars(parser.parse_args())

    start_server = websockets.serve(swiftstory, args['listen'], args['port'])

    asyncio.get_event_loop().run_until_complete(start_server)
    asyncio.get_event_loop().run_forever()


if __name__ == '__main__':
    main()