# img_bot.py
import discord, os, io, re, random, asyncio, logging, requests, replicate, subprocess
from transformers import pipeline as transformers_pipeline
from gradio_client import Client, handle_file

# ── 환경 변수 ────────────────────────────────────────────────
TOKEN       = os.getenv("DISCORD_TOKEN")
CHANNEL_ID  = int(os.getenv("DISCORD_CHANNEL_ID"))
REPL_TOKEN  = (os.getenv("OPENAI_API_KEY") or "").strip()
HF_TOKEN    = (os.getenv("HF_TOKEN") or "").strip()

if not TOKEN or not CHANNEL_ID:
    raise RuntimeError("DISCORD_TOKEN 과 DISCORD_CHANNEL_ID 환경 변수를 모두 지정하세요.")
if not REPL_TOKEN:
    raise RuntimeError("OPENAI_API_KEY 에 Replicate Personal Access Token 값을 넣어주세요.")

os.environ["REPLICATE_API_TOKEN"] = REPL_TOKEN            # 구조 유지 (Replicate 미사용)

# ── Gradio 서버 ─────────────────────────────────────────────
GRADIO_URL  = "http://211.233.58.201:7896"
GRADIO_API  = "/generate_image"
DUMMY_IMG   = "https://raw.githubusercontent.com/gradio-app/gradio/main/test/test_files/bus.png"

# ── 번역 파이프라인 (CPU) ───────────────────────────────────
translator = transformers_pipeline(
    "translation",
    model="Helsinki-NLP/opus-mt-ko-en",
    device=-1,
    **({"token": HF_TOKEN} if HF_TOKEN else {})
)

async def ko2en_async(text: str) -> str:
    """한글 포함 시 별도 쓰레드에서 영어 번역."""
    if not re.search(r"[가-힣]", text):
        return text
    loop = asyncio.get_running_loop()
    try:
        return await loop.run_in_executor(
            None,
            lambda: translator(text, max_length=256, num_beams=1)[0]["translation_text"].strip()
        )
    except Exception as e:
        logging.warning(f"번역 실패, 원문 사용: {e}")
        return text

# ── 로깅 ────────────────────────────────────────────────────
logging.basicConfig(level=logging.INFO,
                    format="%(asctime)s [%(levelname)s] %(message)s",
                    handlers=[logging.StreamHandler()])

# ── Discord 인텐트 ──────────────────────────────────────────
intents = discord.Intents.default()
intents.message_content = True   # Portal에서도 Message-Content Intent ON

class ImageBot(discord.Client):
    async def on_ready(self):
        logging.info(f"Logged in as {self.user} (id={self.user.id})")
        try:
            subprocess.Popen(["python", "web.py"])
            logging.info("web.py server has been started.")
        except Exception as e:
            logging.warning(f"web.py 실행 실패: {e}")

    async def on_message(self, message: discord.Message):
        if message.author.id == self.user.id or message.channel.id != CHANNEL_ID:
            return

        prompt_raw = message.content.strip()
        if not prompt_raw:
            return

        prompt_en = await ko2en_async(prompt_raw)
        await message.channel.typing()

        # ── Gradio 호출 ────────────────────────────────────
        def generate_image():
            client = Client(GRADIO_URL)
            return client.predict(
                prompt=prompt_en,
                width=768,
                height=768,
                guidance=3.5,
                inference_steps=30,
                seed=random.randint(0, 2**32 - 1),
                do_img2img=False,
                init_image=handle_file(DUMMY_IMG),  # path·mime 포함 dict
                image2image_strength=0.8,
                resize_img=True,
                api_name=GRADIO_API
            )[0]                                   # str or dict

        try:
            img_info = await asyncio.get_running_loop().run_in_executor(None, generate_image)
        except Exception as e:
            logging.error(f"Gradio API error: {e}")
            await message.reply("⚠️ 이미지 생성 실패!")
            return

        # ── Discord 전송 ──────────────────────────────────
        files = []
        try:
            if isinstance(img_info, str):          # 경우 1: 문자열 경로/URL
                if img_info.startswith("http"):
                    data = requests.get(img_info).content
                else:
                    with open(img_info, "rb") as f:
                        data = f.read()
                files.append(discord.File(io.BytesIO(data), filename="generated.webp"))
            elif isinstance(img_info, dict):       # 경우 2: dict(path|url)
                if img_info.get("path"):
                    with open(img_info["path"], "rb") as f:
                        data = f.read()
                elif img_info.get("url"):
                    data = requests.get(img_info["url"]).content
                else:
                    data = None
                if data:
                    files.append(discord.File(io.BytesIO(data), filename="generated.webp"))
        except Exception as e:
            logging.warning(f"이미지 처리 실패: {e}")

        await message.reply(
            files=files if files else None,
            content=None if files else "⚠️ 이미지를 전송할 수 없습니다."
        )

# ── 실행 ────────────────────────────────────────────────────
if __name__ == "__main__":
    replicate.Client(api_token=REPL_TOKEN)  # 구조 유지(사용 안 함)
    ImageBot(intents=intents).run(TOKEN)