import os
import json
import random
from datetime import datetime
from typing import List, Dict, Any, Tuple

import discord
import globals

from utils.twitter_fetcher import fetch_figurine_tweets_latest
from utils.image_handling import analyze_image_with_qwen, download_and_encode_image
from utils.llm import query_llama


from utils.dm_logger import dm_logger


def convert_to_fxtwitter(url: str) -> str:
    """Convert twitter.com or x.com URLs to fxtwitter.com for better Discord embeds"""
    if "twitter.com" in url:
        return url.replace("twitter.com", "fxtwitter.com")
    elif "x.com" in url:
        return url.replace("x.com", "fxtwitter.com")
    return url


SUBSCRIBERS_FILE = "memory/figurine_subscribers.json"
SENT_TWEETS_FILE = "memory/figurine_sent_tweets.json"


def _ensure_dir(path: str) -> None:
    directory = os.path.dirname(path)
    if directory:
        os.makedirs(directory, exist_ok=True)


def load_subscribers() -> List[int]:
    try:
        if os.path.exists(SUBSCRIBERS_FILE):
            print(f"📁 Figurines: Loading subscribers from {SUBSCRIBERS_FILE}")
            with open(SUBSCRIBERS_FILE, "r", encoding="utf-8") as f:
                data = json.load(f)
            subs = [int(uid) for uid in data.get("subscribers", [])]
            print(f"📋 Figurines: Loaded {len(subs)} subscribers")
            return subs
    except Exception as e:
        print(f"⚠️ Failed to load figurine subscribers: {e}")
    return []


def save_subscribers(user_ids: List[int]) -> None:
    try:
        _ensure_dir(SUBSCRIBERS_FILE)
        # Save as strings to be JS-safe in the API layer if needed
        payload = {"subscribers": [str(uid) for uid in user_ids]}
        print(f"💾 Figurines: Saving {len(user_ids)} subscribers to {SUBSCRIBERS_FILE}")
        with open(SUBSCRIBERS_FILE, "w", encoding="utf-8") as f:
            json.dump(payload, f, indent=2)
    except Exception as e:
        print(f"⚠️ Failed to save figurine subscribers: {e}")


def add_subscriber(user_id: int) -> bool:
    print(f"➕ Figurines: Adding subscriber {user_id}")
    subscribers = load_subscribers()
    if user_id in subscribers:
        print(f"ℹ️ Figurines: Subscriber {user_id} already present")
        return False
    subscribers.append(user_id)
    save_subscribers(subscribers)
    print(f"✅ Figurines: Subscriber {user_id} added")
    return True


def remove_subscriber(user_id: int) -> bool:
    print(f"🗑️ Figurines: Removing subscriber {user_id}")
    subscribers = load_subscribers()
    if user_id not in subscribers:
        print(f"ℹ️ Figurines: Subscriber {user_id} was not present")
        return False
    subscribers = [uid for uid in subscribers if uid != user_id]
    save_subscribers(subscribers)
    print(f"✅ Figurines: Subscriber {user_id} removed")
    return True


def load_sent_tweets() -> List[str]:
    try:
        if os.path.exists(SENT_TWEETS_FILE):
            print(f"📁 Figurines: Loading sent tweets from {SENT_TWEETS_FILE}")
            with open(SENT_TWEETS_FILE, "r", encoding="utf-8") as f:
                data = json.load(f)
            urls = data.get("urls", [])
            print(f"📋 Figurines: Loaded {len(urls)} sent tweet URLs")
            return urls
    except Exception as e:
        print(f"⚠️ Failed to load figurine sent tweets: {e}")
    return []


def save_sent_tweets(urls: List[str]) -> None:
    try:
        _ensure_dir(SENT_TWEETS_FILE)
        print(f"💾 Figurines: Saving {len(urls)} sent tweet URLs to {SENT_TWEETS_FILE}")
        with open(SENT_TWEETS_FILE, "w", encoding="utf-8") as f:
            json.dump({"urls": urls}, f, indent=2)
    except Exception as e:
        print(f"⚠️ Failed to save figurine sent tweets: {e}")


async def choose_random_figurine_tweet() -> Dict[str, Any] | None:
    """Fetch figurine tweets from multiple sources, filter out sent, and pick one randomly."""
    print("🔎 Figurines: Fetching figurine tweets by Latest across sources…")
    tweets = await fetch_figurine_tweets_latest(limit_per_source=10)
    if not tweets:
        print("📭 No figurine tweets found across sources")
        return None

    sent_urls = set(load_sent_tweets())
    fresh = [t for t in tweets if t.get("url") not in sent_urls]
    print(f"🧮 Figurines: {len(tweets)} total, {len(fresh)} fresh after filtering sent")
    if not fresh:
        print("ℹ️ All figurine tweets have been sent before; allowing reuse")
        fresh = tweets

    chosen = random.choice(fresh)
    print(f"🎯 Chosen figurine tweet: {chosen.get('url')}")
    return chosen


async def send_figurine_dm_to_user(client: discord.Client, user_id: int, tweet: Dict[str, Any]) -> Tuple[bool, str]:
    """Send the figurine tweet to a single subscriber via DM, with analysis and LLM commentary."""
    try:
        print(f"✉️ Figurines: Preparing DM to user {user_id}")
        user = client.get_user(user_id)
        if user is None:
            # Try fetching
            user = await client.fetch_user(user_id)
        if user is None:
            return False, f"User {user_id} not found"

        # Build base prompt with figurine/merch context
        base_prompt = (
            "You are Hatsune Miku writing a short, cute, excited DM to a fan about a newly posted "
            "figurine or merch announcement tweet. Be friendly and enthusiastic but concise. "
            "Reference what the tweet shows."
        )

        # Analyze the first image if available
        if tweet.get("media"):
            first_url = tweet["media"][0]
            base64_img = await download_and_encode_image(first_url)
            if base64_img:
                try:
                    img_desc = await analyze_image_with_qwen(base64_img)
                    base_prompt += f"\n\nImage looks like: {img_desc}"
                except Exception as e:
                    print(f"⚠️ Image analysis failed: {e}")

        # Include tweet text too
        tweet_text = tweet.get("text", "").strip()
        if tweet_text:
            base_prompt += f"\n\nTweet text: {tweet_text}"

        base_prompt += "\n\nSign off as Miku with a cute emoji."

        # Query LLM in DM context (no guild_id -> DM mood rules apply)
        miku_comment = await query_llama(base_prompt, user_id=f"figurine_dm_{user_id}", guild_id=None, response_type="dm_response")

        dm = await user.create_dm()
        tweet_url = tweet.get("url", "")
        
        # Send the tweet URL first (convert to fxtwitter for better embeds)
        fx_tweet_url = convert_to_fxtwitter(tweet_url)
        tweet_message = await dm.send(fx_tweet_url)
        print(f"✅ Figurines: Tweet URL sent to {user_id}: {fx_tweet_url}")
        
        # Log the tweet URL message
        dm_logger.log_user_message(user, tweet_message, is_bot_message=True)
        
        # Send Miku's comment
        comment_message = await dm.send(miku_comment)
        print(f"✅ Figurines: Miku comment sent to {user_id}")
        
        # Log the comment message
        dm_logger.log_user_message(user, comment_message, is_bot_message=True)
        
        # IMPORTANT: Also add to globals.conversation_history for LLM context
        user_id_str = str(user_id)
        
        # Add the tweet URL as a "system message" about what Miku just sent (use original URL for context)
        tweet_context = f"[I just sent you this figurine tweet: {tweet_url}]"
        
        # Add the figurine comment to conversation history 
        # Use empty user prompt since this was initiated by Miku
        globals.conversation_history.setdefault(user_id_str, []).append((tweet_context, miku_comment))
        
        print(f"📝 Figurines: Messages logged to both DM history and conversation context for user {user_id}")

        return True, "ok"
    except Exception as e:
        print(f"❌ Figurines: Failed DM to {user_id}: {e}")
        return False, f"{e}"


async def send_figurine_dm_to_single_user(client: discord.Client, user_id: int, tweet_url: str = None) -> Dict[str, Any]:
    """Send a figurine tweet to a single user, either from search or specific URL."""
    print(f"🎯 Figurines: Sending DM to single user {user_id}")
    
    if tweet_url:
        # Use specific tweet URL
        print(f"📎 Figurines: Using specific tweet URL: {tweet_url}")
        tweet = await fetch_specific_tweet_by_url(tweet_url)
        if not tweet:
            return {"status": "error", "message": "Failed to fetch specified tweet"}
    else:
        # Search for a random tweet
        print("🔎 Figurines: Searching for random figurine tweet")
        tweet = await choose_random_figurine_tweet()
        if not tweet:
            return {"status": "error", "message": "No figurine tweets found"}
    
    # Send to the single user
    ok, msg = await send_figurine_dm_to_user(client, user_id, tweet)
    
    if ok:
        # Record as sent if successful
        sent_urls = load_sent_tweets()
        url = tweet.get("url")
        if url and url not in sent_urls:
            sent_urls.append(url)
            if len(sent_urls) > 200:
                sent_urls = sent_urls[-200:]
            save_sent_tweets(sent_urls)
        
        result = {
            "status": "ok", 
            "sent": [str(user_id)], 
            "failed": [],
            "tweet": {"url": tweet.get("url", ""), "username": tweet.get("username", "")}
        }
        print(f"✅ Figurines: Single user DM sent successfully → {result}")
        return result
    else:
        result = {
            "status": "error", 
            "sent": [], 
            "failed": [{"user_id": str(user_id), "error": msg}],
            "message": f"Failed to send DM: {msg}"
        }
        print(f"❌ Figurines: Single user DM failed → {result}")
        return result


async def fetch_specific_tweet_by_url(tweet_url: str) -> Dict[str, Any] | None:
    """Fetch a specific tweet by URL for manual figurine notifications."""
    try:
        print(f"🔗 Figurines: Fetching specific tweet from URL: {tweet_url}")
        
        # Extract tweet ID from URL
        tweet_id = None
        if "/status/" in tweet_url:
            try:
                tweet_id = tweet_url.split("/status/")[1].split("?")[0].split("/")[0]
                print(f"📋 Figurines: Extracted tweet ID: {tweet_id}")
            except Exception as e:
                print(f"❌ Figurines: Failed to extract tweet ID from URL: {e}")
                return None
        
        if not tweet_id:
            print("❌ Figurines: Could not extract tweet ID from URL")
            return None
        
        # Set up twscrape API (same pattern as existing functions)
        from twscrape import API
        from pathlib import Path
        import json
        
        COOKIE_PATH = Path(__file__).parent / "x.com.cookies.json"
        
        # Load cookies
        with open(COOKIE_PATH, "r", encoding="utf-8") as f:
            cookie_list = json.load(f)
        cookie_header = "; ".join(f"{c['name']}={c['value']}" for c in cookie_list)
        
        # Set up API
        api = API()
        await api.pool.add_account(
            username="HSankyuu39",
            password="x",
            email="x",
            email_password="x", 
            cookies=cookie_header
        )
        await api.pool.login_all()
        
        # Try to fetch the tweet using search instead of tweet_details
        # Search for the specific tweet ID should return it if accessible
        print(f"🔍 Figurines: Searching for tweet with ID {tweet_id}")
        search_results = []
        try:
            # Search using the tweet ID - this should find the specific tweet
            from twscrape import gather
            search_results = await gather(api.search(f"{tweet_id}", limit=1))
            print(f"🔍 Figurines: Search returned {len(search_results)} results")
        except Exception as search_error:
            print(f"⚠️ Figurines: Search failed: {search_error}")
            return None
        
        # Check if we found the tweet
        tweet_data = None
        for tweet in search_results:
            if str(tweet.id) == str(tweet_id):
                tweet_data = tweet
                print(f"✅ Figurines: Found matching tweet with ID {tweet.id}")
                break
        
        if not tweet_data and search_results:
            # If no exact match but we have results, use the first one
            tweet_data = search_results[0]
            print(f"🔍 Figurines: Using first search result with ID {tweet_data.id}")
        
        if tweet_data:
            # Extract data using the same pattern as the working search code
            username = tweet_data.user.username if hasattr(tweet_data, 'user') and tweet_data.user else "unknown"
            text_content = tweet_data.rawContent if hasattr(tweet_data, 'rawContent') else ""
            
            print(f"🔍 Figurines: Found tweet from @{username}")
            print(f"🔍 Figurines: Tweet text: {text_content[:100]}...")
            
            # For media, we'll need to extract it from the tweet_url using the same method as other functions
            # But for now, let's see if we can get basic tweet data working first
            result = {
                "text": text_content,
                "username": username,
                "url": tweet_url,
                "media": []  # We'll add media extraction later
            }
            
            print(f"✅ Figurines: Successfully fetched tweet from @{result['username']}")
            return result
        else:
            print("❌ Figurines: No tweet found with the specified ID")
            return None
            
    except Exception as e:
        print(f"❌ Figurines: Error fetching tweet by URL: {e}")
        return None


async def send_figurine_dm_to_all_subscribers(client: discord.Client, tweet_url: str = None) -> Dict[str, Any]:
    """Pick a figurine tweet and DM it to all subscribers, recording the sent URL."""
    print("🚀 Figurines: Sending figurine DM to all subscribers…")
    subscribers = load_subscribers()
    if not subscribers:
        print("ℹ️ Figurines: No subscribers configured")
        return {"status": "no_subscribers"}

    if tweet_url:
        # Use specific tweet URL
        print(f"📎 Figurines: Using specific tweet URL for all subscribers: {tweet_url}")
        tweet = await fetch_specific_tweet_by_url(tweet_url)
        if not tweet:
            print("ℹ️ Figurines: Failed to fetch specified tweet")
            return {"status": "no_tweet", "message": "Failed to fetch specified tweet"}
    else:
        # Search for random tweet
        tweet = await choose_random_figurine_tweet()
        if tweet is None:
            print("ℹ️ Figurines: No tweet to send")
            return {"status": "no_tweet"}

    results = {"sent": [], "failed": []}
    for uid in subscribers:
        ok, msg = await send_figurine_dm_to_user(client, uid, tweet)
        if ok:
            results["sent"].append(str(uid))
        else:
            print(f"⚠️ Failed to DM user {uid}: {msg}")
            results["failed"].append({"user_id": str(uid), "error": msg})

    # Record as sent if at least one success to avoid repeats
    sent_urls = load_sent_tweets()
    url = tweet.get("url")
    if url and url not in sent_urls:
        sent_urls.append(url)
        # keep file from growing unbounded
        if len(sent_urls) > 200:
            sent_urls = sent_urls[-200:]
        save_sent_tweets(sent_urls)

    summary = {"status": "ok", **results, "tweet": {"url": tweet.get("url", ""), "username": tweet.get("username", "")}}
    print(f"📦 Figurines: DM send complete → {summary}")
    return summary