import secrets

from casbin import AsyncEnforcer
from sanic import SanicException

from models import User, GiteaUser
from sio_model import SioDecorator, Message, SioRequest


def cmds(app, data):
    # 此处会检查注册的指令是否重复
    sio_decorator = SioDecorator(app, data)

    @sio_decorator.cmd('ping')
    async def ping(sqt: SioRequest):
        msg = Message(content='pong', room_id=sqt.room_id)
        await sqt.app.ctx.sio.emit('sendMessage', msg.to_json())

    @sio_decorator.cmd('gitea')
    async def gitea(sqt: SioRequest):
        parser = sqt.parser
        parser.add_argument('-vd', '--validate', help='绑定QQ与gitea',
                            action="store_true")
        parser.add_argument('-ust', '--ustatus', help='查询Gitea绑定状态',
                            action="store_true")
        args = parser.parse_args(sqt.args)
        if args.validate:
            state = secrets.token_urlsafe(16)
            user = await User.filter(id=sqt.sender_id).get_or_none()
            if user:
                user.name = sqt.sender_name
                user.state = state
                await user.save()
            else:
                user = User(id=sqt.sender_id, name=sqt.sender_name, state=state)
                await user.save()
            url = (f'{app.ctx.sio_config.gitea_host}/login/oauth/authorize?'
                   f'client_id={app.ctx.sio_config.client_id}&'
                   f'redirect_uri={app.ctx.sio_config.localhost}/redirect&'
                   f'response_type=code&state={state}')
            msg = Message(content=f'click: \n{url}', room_id=sqt.room_id)
            await sqt.app.ctx.sio.emit('sendMessage', msg.to_json())

        if args.ustatus:
            g_user = await GiteaUser.filter(qid_id=sqt.sender_id).get_or_none()
            if g_user:
                msg = Message(content=f'您的Gitea账号是：{g_user.name}', room_id=sqt.room_id)
            else:
                try:
                    task = await sqt.app.get_task(str(sqt.sender_id))
                    result = task.result()
                    msg = Message(content=f'绑定状态：{result}', room_id=sqt.room_id)
                except SanicException:
                    msg = Message(content=f'你还没有绑定呢', room_id=sqt.room_id)
            await sqt.app.ctx.sio.emit('sendMessage', msg.to_json())

        if len(sqt.args) == 0:
            parser.parse_args(["-h"])

    @sio_decorator.cmd('authadd')
    async def auth_add(sqt: SioRequest):
        parser = sqt.parser
        parser.add_argument('-ag', '--addgroup', help='添加用户组与其权限',
                            action="store_true")
        parser.add_argument('-g', '--group', help='组名')
        parser.add_argument('-m', '--command', help='命令名')
        parser.add_argument('-u', '--user', help='用户名')
        parser.add_argument('-au', '--adduser', help='添加用户/群到组',
                            action="store_true")

        args = parser.parse_args(sqt.args)
        e: AsyncEnforcer = sqt.app.ctx.e
        msg = ''
        if args.addgroup:
            if args.group and args.command:
                if await e.add_policy(args.group, args.command):
                    msg = Message(content=f'添加成功：p, {args.group}, {args.command}', room_id=sqt.room_id)
                else:
                    msg = Message(content='添加失败，用户组已存在或其它错误', room_id=sqt.room_id)
            else:
                msg = Message(content='缺失参数，请使用-h查看帮助', room_id=sqt.room_id)
        if args.adduser:
            if args.group:
                if await e.add_role_for_user(str(args.user or sqt.room_id), args.group):
                    msg = Message(content=f'添加成功：g, {args.user or sqt.room_id}, {args.group}', room_id=sqt.room_id)
                else:
                    msg = Message(content='添加失败，用户已在组内或其它错误', room_id=sqt.room_id)
            else:
                msg = Message(content='缺失参数，请使用-h查看帮助', room_id=sqt.room_id)

        if len(sqt.args) == 0:
            parser.parse_args(["-h"])
        else:
            if msg == '':
                msg = Message(content='参数错误，请使用-h查看帮助', room_id=sqt.room_id)
            await sqt.app.ctx.sio.emit('sendMessage', msg.to_json())
        await e.save_policy()

    @sio_decorator.cmd('authrm')
    async def auth_add(sqt: SioRequest):
        parser = sqt.parser
        parser.add_argument('-rg', '--rmgroup', help='移除用户组的权限',
                            action="store_true")
        parser.add_argument('-g', '--group', help='组名')
        parser.add_argument('-u', '--user', help='用户名')
        parser.add_argument('-ru', '--rmuser', help='从组移除用户/群',
                            action="store_true")

        args = parser.parse_args(sqt.args)
        e: AsyncEnforcer = sqt.app.ctx.e
        msg = ''
        if args.rmgroup:
            if args.group and args.command:
                if await e.remove_policy(args.group, args.command):
                    msg = Message(content=f'移除成功：p, {args.group}, {args.command}', room_id=sqt.room_id)
                else:
                    msg = Message(content='移除失败，用户组已存在或其它错误', room_id=sqt.room_id)
            else:
                msg = Message(content='缺失参数，请使用-h查看帮助', room_id=sqt.room_id)
        if args.rmuser:
            if args.group:
                if await e.delete_role_for_user(str(args.user or sqt.room_id), args.group):
                    msg = Message(content=f'移除成功：g, {args.user or sqt.room_id}, {args.group}', room_id=sqt.room_id)
                else:
                    msg = Message(content='移除失败，用户已在组内或其它错误', room_id=sqt.room_id)
            else:
                msg = Message(content='缺失参数，请使用-h查看帮助', room_id=sqt.room_id)

        if len(sqt.args) == 0:
            parser.parse_args(["-h"])
        else:
            if msg == '':
                msg = Message(content='参数错误，请使用-h查看帮助', room_id=sqt.room_id)
            await sqt.app.ctx.sio.emit('sendMessage', msg.to_json())
        await e.save_policy()

    return sio_decorator