import asyncio
import os, sys
import time
import importlib
import re
import json
import logging
from functools import partial
from .memory.chatlog import ChatLog
from .utilities.messages import Message
from .ai.langchain import AI

logger = logging.getLogger(__name__)

class ChatBot(object):
    """Main chatbot"""

    def __init__(self, name, connection):
        self.name = name
        self.connection = connection
        #self.say_cb = None
        self.chatlog = ChatLog(self.name)
        self.rooms = {}
        self.queue = asyncio.Queue(maxsize=0)
        self.background_tasks = set()
        task = asyncio.create_task(self.worker(f'worker-{self.name}', self.queue))
        self.background_tasks.add(task)
        task.add_done_callback(self.background_tasks.discard)
        #print(f"Hello, I'm {name}")

    def init_character(self, persona, scenario, greeting, example_dialogue=[], nsfw=False, temperature=0.72):
        self.persona = persona.replace('\\n', '\n').replace('{{char}}', self.name)
        self.scenario = scenario.replace('\\n', '\n').replace('{{char}}', self.name)
        self.greeting = greeting.replace('\\n', '\n').replace('{{char}}', self.name)
        self.example_dialogue = [i.replace('\\n', '\n').replace('{{char}}', self.name) for i in example_dialogue]
        # .replace("\\n", "\n") ??????
        self.nsfw = nsfw
        self.temperature = temperature

    async def persist(self, data_dir):
        self.chatlog_path = os.path.join(data_dir, "chatlogs/")
        self.images_path = os.path.join(data_dir, "images/")
        self.memory_path = os.path.join(data_dir, "memory/")
        self.rooms_conf_file = os.path.join(data_dir, "rooms.conf")
        os.makedirs(self.chatlog_path, exist_ok=True)
        os.makedirs(self.images_path, exist_ok=True)
        os.makedirs(self.memory_path, exist_ok=True)
        self.chatlog.enable_logging(self.chatlog_path)
        self.rooms = await self.read_conf2()

    async def read_conf2(self):
        if not os.path.isfile(self.rooms_conf_file):
            return {}
        with open(self.rooms_conf_file, "r") as f:
            return json.load(f)

    async def write_conf2(self, data):
        with open(self.rooms_conf_file, "w") as f:
            json.dump(data, f)

    async def connect(self):
        await self.connection.login()
        self.connection.callbacks.add_message_callback(self.message_cb, self.redaction_cb)
        await self.schedule(self.queue, print, f"Hello, I'm {self.name}")

    async def disconnect(self):
        # Wait until the queue is fully processed.
        await self.queue.join()
        # Cancel our worker tasks.
        for task in self.background_tasks:
            task.cancel()
        # Wait until all worker tasks are cancelled.
        await asyncio.gather(*self.background_tasks, return_exceptions=True)
        await self.connection.logout()

    async def load_ai(self, available_text_endpoints, available_image_endpoints):
#        module_text_ai = importlib.import_module("bot.ai.langchain", package=None)
#        self.text_ai = module_text_ai.AI(self)

        from .wrappers.runpod import RunpodTextWrapper
        from .wrappers.stablehorde import StableHordeTextWrapper
        from .wrappers.koboldcpp import KoboldCppTextWrapper
        self.text_generators = {}
        for text_endpoint in sorted(available_text_endpoints, key=lambda d: d['id']):
            if text_endpoint['service'] == "koboldcpp":
                text_generator = KoboldCppTextWrapper(text_endpoint['endpoint'], text_endpoint['model'])
            elif text_endpoint['service'] == "stablehorde":
                text_generator = StableHordeTextWrapper(text_endpoint['api_key'], text_endpoint['endpoint'], text_endpoint['model'])
            elif text_endpoint['service'] == "runpod":
                text_generator = RunpodTextWrapper(text_endpoint['api_key'], text_endpoint['endpoint'], text_endpoint['model'])
            else:
                raise ValueError(f"no text service with the name \"{service_text}\"")
            i = text_endpoint['id']
            self.text_generators[i] = text_generator

        from .wrappers.runpod import RunpodImageWrapper
        from .wrappers.runpod import RunpodImageAutomaticWrapper
        from .wrappers.stablehorde import StableHordeImageWrapper
        self.image_generators = {}
        for image_endpoint in sorted(available_image_endpoints, key=lambda d: d['id']):
            if image_endpoint['service'] == "runpod":
                image_generator = RunpodImageWrapper(image_endpoint['api_key'], image_endpoint['endpoint'], image_endpoint['model'])
            elif image_endpoint['service'] == "runpod-automatic1111":
                image_generator = RunpodImageAutomaticWrapper(image_endpoint['api_key'], image_endpoint['endpoint'], image_endpoint['model'])
            elif image_endpoint['service'] == "stablehorde":
                image_generator = StableHordeImageWrapper(image_endpoint['api_key'], image_endpoint['endpoint'], image_endpoint['model'])
            else:
                raise ValueError(f"no image service with the name \"{service_image}\"")
            i = image_endpoint['id']
#            def make_fn_generate_image_for_endpoint(wrapper, endpoint):
#                async def generate_image(input_prompt, negative_prompt, typing_fn, timeout=180):
#                    return await wrapper.generate(input_prompt, negative_prompt, endpoint, typing_fn, timeout)
#                return generate_image
#            #self.image_generators.append(generate_image)
#            image_generators[i] = make_fn_generate_image_for_endpoint(image_generator, image_endpoint['endpoint'])
            self.image_generators[i] = image_generator

        self.ai = AI(self, self.text_generators, self.image_generators, self.memory_path)


    async def message_cb(self, room, event) -> None:
        message = Message.from_matrix(room, event)
        reply_fn = partial(self.connection.send_message, room.room_id)
        typing_fn = lambda : self.connection.room_typing(room.room_id, True, 15000)

        if not room.room_id in self.rooms:
            self.rooms[room.room_id] = {}
            self.write_conf2(self.rooms)
            # ToDo: set ticks 0 / start

        if not self.connection.synced:
            self.chatlog.save(message, False)
            return

        if message.is_from(self.connection.user_id):
            """Skip messages from ouselves"""
            self.chatlog.save(message)
            return

#        if event.decrypted:
#            encrypted_symbol = "🛡 "
#        else:
#            encrypted_symbol = "⚠️ "
#        print(
#            f"{room.display_name} |{encrypted_symbol}| {room.user_name(event.sender)}: {event.body}"
#        )
#        if room.is_named:
#            print(f"room.display_name: {room.display_name}")
#        if room.is_group:
#            print(f"room.group_name(): {room.group_name()}")
#        print(f"room.joined_count: {room.joined_count}")
#        print(f"room.member_count: {room.member_count}")
#        print(f"room.encrypted: {room.encrypted}")
#        print(f"room.users: {room.users}")
#        print(f"room.room_id: {room.room_id}")

        if self.name.casefold() == message.user_name.casefold():
            """Bot and user have the same name"""
            message.user_name += " 2" # or simply "You"

        message.user_name = message.user_name.title()

        if hasattr(self, "owner"):
            if not message.is_from(self.owner):
                self.chatlog.save(message)
                return

        if "disabled" in self.rooms[message.room_id] and self.rooms[message.room_id]["disabled"] == True and not (message.message.startswith('!start') or message.message.startswith('!begin')):
            return

        await self.connection.room_read_markers(room.room_id, event.event_id, event.event_id)

        if message.is_command():
            await self.schedule(self.queue, self.process_command, message, reply_fn, typing_fn)
#        elif re.search("^(?=.*\bsend\b)(?=.*\bpicture\b).*$", event.body, flags=re.IGNORECASE):
#            # send, mail, drop, snap picture, photo, image, portrait
        else:
            await self.schedule(self.queue, self.process_message, message, reply_fn, typing_fn)
        self.chatlog.save(message)
        print("done")

    async def redaction_cb(self, room, event) -> None:
        self.chatlog.remove_message_by_id(event.event_id)

    async def process_command(self, message, reply_fn, typing_fn):
        if message.message.startswith("!replybot"):
            await reply_fn("Hello World")
        elif re.search("(?s)^!image(?P<num>[0-9])?(\s(?P<cmd>.*))?$", message.message, flags=re.DOTALL):
            m = re.search("(?s)^!image(?P<num>[0-9])?(\s(?P<cmd>.*))?$", message.message, flags=re.DOTALL)
            if m['num']:
                num = int(m['num'])
            else:
                num = 1
            if m['cmd']:
                prompt = m['cmd'].strip()
            else:
                prompt = "a beautiful woman"
            negative_prompt = "out of frame, (ugly:1.3), (fused fingers), (too many fingers), (bad anatomy:1.5), (watermark:1.5), (words), letters, untracked eyes, asymmetric eyes, floating head, (logo:1.5), (bad hands:1.3), (mangled hands:1.2), (missing hands), (missing arms), backward hands, floating jewelry, unattached jewelry, floating head, doubled head, unattached head, doubled head, head in body, (misshapen body:1.1), (badly fitted headwear:1.2), floating arms, (too many arms:1.5), limbs fused with body, (facial blemish:1.5), badly fitted clothes, imperfect eyes, untracked eyes, crossed eyes, hair growing from clothes, partial faces, hair not attached to head"
#"anime, cartoon, penis, fake, drawing, illustration, boring, 3d render, long neck, out of frame, extra fingers, mutated hands, monochrome, ((poorly drawn hands)), ((poorly drawn face)), (((mutation))), (((deformed))), ((ugly)), blurry, ((bad anatomy)), (((bad proportions))), ((extra limbs)), cloned face, glitchy, bokeh, (((long neck))), 3D, 3DCG, cgstation, red eyes, multiple subjects, extra heads, close up, watermarks, logo"
#"ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, deformed, body out of frame, bad anatomy, watermark, signature, cut off, low contrast, underexposed, overexposed, bad art, beginner, amateur, distorted face"
#"ugly, deformed, out of frame"
            try:
                output = await self.image_generators[num].generate(prompt, negative_prompt, typing_fn)
                await self.connection.room_typing(message.room_id, False)
                for imagefile in output:
                    await self.connection.send_image(message.room_id, imagefile)
            except (KeyError, IndexError, ValueError) as err:
                #await self.connection.room_typing(message.room_id, False)
                errormessage = f"<ERROR> {err=}, {type(err)=}"
                logger.error(errormessage)
                await reply_fn(errormessage)

        elif message.message.startswith("!image_negative_prompt"):
            self.negative_prompt = message.message.removeprefix('!image_negative_prompt').strip()
        elif message.message.startswith('!temperature'):
            self.temperature = float( message.message.removeprefix('!temperature').strip() )
        elif message.message.startswith('!begin'):
            self.rooms[message.room_id]["disabled"] = False
            self.write_conf2(self.rooms)
            self.chatlog.clear(message.room_id)
            # ToDo reset time / ticks
            await reply_fn(self.greeting)
        elif message.message.startswith('!start'):
            self.rooms[message.room_id]["disabled"] = False
            self.write_conf2(self.rooms)
        elif message.message.startswith('!stop'):
            self.rooms[message.room_id]["disabled"] = True
            self.write_conf2(self.rooms)
        elif message.message.startswith('!!'):
            if self.chatlog.chat_history_len(message.room_id) > 2:
                for _ in range(2):
                    old_message = self.chatlog.remove_message_in_room(message.room_id, 1)
                    await self.connection.room_redact(message.room_id, old_message.event_id, reason="user-request")
                message = self.chatlog.get_last_message(message.room_id)


    async def process_message(self, message, reply_fn, typing_fn):
        output = await self.ai.generate_roleplay(message, reply_fn, typing_fn)
        #output = await self.ai.generate(message, reply_fn, typing_fn)
        # typing false
        await reply_fn(output)


    async def worker(self, name: str, q: asyncio.Queue) -> None:
        while True:
            cb, args, kwargs = await q.get()
            start = time.perf_counter()
            if asyncio.iscoroutinefunction(cb):
                logger.info("queued task started (coroutine)")
                await cb(*args, **kwargs)
            else:
                logger.info("queued task started (function)")
                cb(*args, **kwargs)
            q.task_done()
            elapsed = time.perf_counter() - start
            logger.info(f"Queued task done in {elapsed:0.5f} seconds.")
            logger.debug("queue item processed")

    async def schedule(self, q: asyncio.Queue, cb, *args, **kwargs) -> None:
        logger.info(f"queuing task")
        await q.put((cb, args, kwargs))
        #q.put_nowait((cb, args, kwargs))

    async def schedule_task(self, done_callback, cb, *args, **kwargs):
        logger.info(f"creating background task")
        task = asyncio.create_task(cb(*args, **kwargs))
        task.add_done_callback(done_callback)
        self.background_tasks.add(task)
        task.add_done_callback(self.background_tasks.discard)

    # closure
    def outer_function(self, x):
        def inner_funtion(y):
            return x+y
        return inner_function