import contextlib
import json

from asyncio import sleep

from pagermaid.dependence import sqlite
from pagermaid.hook import Hook
from pagermaid.listener import listener
from pagermaid.enums import Message
from pagermaid.services import bot
from pagermaid.utils import pip_install
from pagermaid.utils.bot_utils import log

pip_install("aiohttp")

import aiohttp


class WebSocket:
    def __init__(self):
        self.uri = sqlite.get("websocket_uri", "")
        self.loop = bot.loop
        self.client = aiohttp.ClientSession(loop=self.loop)
        self.need_stop = False
        self.ws = None
        self.connection = None

    @staticmethod
    def database_have_uri():
        return sqlite.get("websocket_uri", "") != ""

    def restore_uri(self):
        self.uri = sqlite.get("websocket_uri", "")

    async def set_uri(self, uri):
        await self.disconnect()
        self.uri = uri
        sqlite["websocket_uri"] = uri

    def is_connected(self):
        return self.connection is not None

    async def connect(self):
        if self.is_connected():
            await self.disconnect()
        if self.uri:
            self.ws = self.client.ws_connect(
                self.uri, autoclose=False, autoping=False, timeout=5
            )
            self.connection = await self.ws._coro

    async def disconnect(self):
        if self.connection:
            with contextlib.suppress(Exception):
                await self.connection.close()
            self.ws = None
            self.connection = None

    async def keep_alive(self):
        if not self.uri:
            return
        i = 0
        while i < 3:
            try:
                await self.connect()
            except Exception:
                i += 1
                if i == 3:
                    await log("[ws] Connection lost, reconnect 3 times failed...")
                await sleep(5)
                continue
            await self.get()
            i = 0
            if self.need_stop:
                await self.disconnect()
                self.need_stop = False
                break

    async def get(self):
        ws_ = self.connection
        if not ws_:
            return
        while True:
            msg = await ws_.receive()
            if msg.type == aiohttp.WSMsgType.TEXT:
                bot.loop.create_task(self.process_message(msg.data))
            elif msg.type == aiohttp.WSMsgType.PING:
                await ws_.pong()
            elif msg.type == aiohttp.WSMsgType.BINARY:
                pass
            elif msg.type != aiohttp.WSMsgType.PONG:
                if msg.type == aiohttp.WSMsgType.CLOSE:
                    await ws_.close()
                elif msg.type == aiohttp.WSMsgType.ERROR:
                    print(f"Error during receive {ws_.exception()}")
                break
        self.ws = None
        self.connection = None

    async def push(self, msg):
        if self.is_connected():
            await self.connection.send_str(msg)

    @staticmethod
    async def process_message(text: str):
        try:
            data = json.loads(text)
        except Exception:
            return
        action = data.get("action", None)
        action_data = data.get("data", None)

        bot_action = getattr(bot, action)
        if bot_action and action_data:
            await bot_action(**action_data)


ws = WebSocket()


@Hook.on_startup()
async def connect_ws():
    try:
        await ws.connect()
        bot.loop.create_task(ws.keep_alive())
    except Exception as e:
        await log(f"[ws] Connection failed: {e}")


@listener(incoming=True, outgoing=True)
async def websocket_push(message: Message):
    with contextlib.suppress(Exception):
        await ws.push(message.__str__())


@listener(command="websocket", description="Websocket Connect", parameters="[uri]")
async def websocket_to_connect(message: Message):
    if message.arguments:
        uri = message.arguments
        if not uri.startswith("ws://"):
            return await message.edit(
                "[ws] 请输入正确的 uri ，例如：ws://127.0.0.1:1080/ws\n\n"
                "**请一定使用强路径并且连接到可信 ws ，ws 发送方能够对您的账户执行任意操作！！！**"
            )
        msg: Message = await message.edit("[ws] Websocket 尝试连接中...")
        try:
            if ws.is_connected():
                ws.need_stop = True
            await ws.disconnect()
            await ws.set_uri(uri)
            await ws.connect()
        except Exception as e:
            return await msg.edit(f"[ws] 连接失败：{e}")
        await msg.edit("[ws] Websocket 连接成功")
        bot.loop.create_task(ws.keep_alive())
    elif not ws.is_connected():
        if not ws.database_have_uri():
            return await message.edit(
                "[ws] ws 未链接，请输入正确的 uri ，例如：ws://127.0.0.1:1080/ws\n\n"
                "**请一定使用强路径并且连接到可信 ws ，ws 发送方能够对您的账户执行任意操作！！！**"
            )
        ws.restore_uri()
        msg: Message = await message.edit("[ws] Websocket 尝试连接中...")
        try:
            await ws.connect()
        except Exception:
            return await msg.edit("[ws] 连接失败")
        await msg.edit("[ws] Websocket 连接成功")
        bot.loop.create_task(ws.keep_alive())
    else:
        return await message.edit("[ws] Websocket 已连接")