import glob
import json
import os
import queue as Q
import re
import sys
import threading
import time

PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, PROJECT_ROOT)
os.chdir(PROJECT_ROOT)

import lark_oapi as lark
from lark_oapi.api.im.v1 import *

from agentmain import GeneraticAgent
from llmcore import mykeys

_TAG_PATS = [r"<" + t + r">.*?</" + t + r">" for t in ("thinking", "summary", "tool_use", "file_content")]
_IMAGE_EXTS = {".png", ".jpg", ".jpeg", ".gif", ".bmp", ".webp", ".ico", ".tiff", ".tif"}
_AUDIO_EXTS = {".opus", ".mp3", ".wav", ".m4a", ".aac"}
_VIDEO_EXTS = {".mp4", ".mov", ".avi", ".mkv", ".webm"}
_FILE_TYPE_MAP = {
    ".opus": "opus",
    ".mp4": "mp4",
    ".pdf": "pdf",
    ".doc": "doc",
    ".docx": "doc",
    ".xls": "xls",
    ".xlsx": "xls",
    ".ppt": "ppt",
    ".pptx": "ppt",
}
_MSG_TYPE_MAP = {"image": "[image]", "audio": "[audio]", "file": "[file]", "media": "[media]", "sticker": "[sticker]"}

TEMP_DIR = os.path.join(PROJECT_ROOT, "temp")
MEDIA_DIR = os.path.join(TEMP_DIR, "feishu_media")
os.makedirs(MEDIA_DIR, exist_ok=True)


def _clean(text):
    for pat in _TAG_PATS:
        text = re.sub(pat, "", text, flags=re.DOTALL)
    return re.sub(r"\n{3,}", "\n\n", text).strip() or "..."


def _extract_files(text):
    return re.findall(r"\[FILE:([^\]]+)\]", text or "")


def _strip_files(text):
    return re.sub(r"\[FILE:[^\]]+\]", "", text or "").strip()


def _display_text(text):
    return _strip_files(_clean(text)) or "..."


def _to_allowed_set(value):
    if value is None:
        return set()
    if isinstance(value, str):
        value = [value]
    return {str(x).strip() for x in value if str(x).strip()}


def _parse_json(raw):
    if not raw:
        return {}
    try:
        return json.loads(raw)
    except Exception:
        return {}


def _extract_share_card_content(content_json, msg_type):
    parts = []
    if msg_type == "share_chat":
        parts.append(f"[shared chat: {content_json.get('chat_id', '')}]")
    elif msg_type == "share_user":
        parts.append(f"[shared user: {content_json.get('user_id', '')}]")
    elif msg_type == "interactive":
        parts.extend(_extract_interactive_content(content_json))
    elif msg_type == "share_calendar_event":
        parts.append(f"[shared calendar event: {content_json.get('event_key', '')}]")
    elif msg_type == "system":
        parts.append("[system message]")
    elif msg_type == "merge_forward":
        parts.append("[merged forward messages]")
    return "\n".join([p for p in parts if p]).strip() or f"[{msg_type}]"


def _extract_interactive_content(content):
    parts = []
    if isinstance(content, str):
        try:
            content = json.loads(content)
        except Exception:
            return [content] if content.strip() else []
    if not isinstance(content, dict):
        return parts
    title = content.get("title")
    if isinstance(title, dict):
        title_text = title.get("content", "") or title.get("text", "")
        if title_text:
            parts.append(f"title: {title_text}")
    elif isinstance(title, str) and title:
        parts.append(f"title: {title}")
    elements = content.get("elements", [])
    if isinstance(elements, list):
        for row in elements:
            if isinstance(row, dict):
                parts.extend(_extract_element_content(row))
            elif isinstance(row, list):
                for el in row:
                    parts.extend(_extract_element_content(el))
    card = content.get("card", {})
    if card:
        parts.extend(_extract_interactive_content(card))
    header = content.get("header", {})
    if isinstance(header, dict):
        header_title = header.get("title", {})
        if isinstance(header_title, dict):
            header_text = header_title.get("content", "") or header_title.get("text", "")
            if header_text:
                parts.append(f"title: {header_text}")
    return [p for p in parts if p]


def _extract_element_content(element):
    parts = []
    if not isinstance(element, dict):
        return parts
    tag = element.get("tag", "")
    if tag in ("markdown", "lark_md"):
        content = element.get("content", "")
        if content:
            parts.append(content)
    elif tag == "div":
        text = element.get("text", {})
        if isinstance(text, dict):
            text_content = text.get("content", "") or text.get("text", "")
            if text_content:
                parts.append(text_content)
        elif isinstance(text, str) and text:
            parts.append(text)
        for field in element.get("fields", []) or []:
            if isinstance(field, dict):
                field_text = field.get("text", {})
                if isinstance(field_text, dict):
                    content = field_text.get("content", "") or field_text.get("text", "")
                    if content:
                        parts.append(content)
    elif tag == "a":
        href = element.get("href", "")
        text = element.get("text", "")
        if href:
            parts.append(f"link: {href}")
        if text:
            parts.append(text)
    elif tag == "button":
        text = element.get("text", {})
        if isinstance(text, dict):
            content = text.get("content", "") or text.get("text", "")
            if content:
                parts.append(content)
        url = element.get("url", "") or (element.get("multi_url", {}) or {}).get("url", "")
        if url:
            parts.append(f"link: {url}")
    elif tag == "img":
        alt = element.get("alt", {})
        if isinstance(alt, dict):
            parts.append(alt.get("content", "[image]") or "[image]")
        else:
            parts.append("[image]")
    for child in element.get("elements", []) or []:
        parts.extend(_extract_element_content(child))
    for col in element.get("columns", []) or []:
        for child in (col.get("elements", []) if isinstance(col, dict) else []):
            parts.extend(_extract_element_content(child))
    return parts


def _extract_post_content(content_json):
    def _parse_block(block):
        if not isinstance(block, dict) or not isinstance(block.get("content"), list):
            return None, []
        texts, images = [], []
        if block.get("title"):
            texts.append(block.get("title"))
        for row in block["content"]:
            if not isinstance(row, list):
                continue
            for el in row:
                if not isinstance(el, dict):
                    continue
                tag = el.get("tag")
                if tag in ("text", "a"):
                    texts.append(el.get("text", ""))
                elif tag == "at":
                    texts.append(f"@{el.get('user_name', 'user')}")
                elif tag == "img" and el.get("image_key"):
                    images.append(el["image_key"])
        text = " ".join([t for t in texts if t]).strip()
        return text or None, images

    root = content_json
    if isinstance(root, dict) and isinstance(root.get("post"), dict):
        root = root["post"]
    if not isinstance(root, dict):
        return "", []
    if "content" in root:
        text, imgs = _parse_block(root)
        if text or imgs:
            return text or "", imgs
    for key in ("zh_cn", "en_us", "ja_jp"):
        if key in root:
            text, imgs = _parse_block(root[key])
            if text or imgs:
                return text or "", imgs
    for val in root.values():
        if isinstance(val, dict):
            text, imgs = _parse_block(val)
            if text or imgs:
                return text or "", imgs
    return "", []


APP_ID = str(mykeys.get("fs_app_id", "") or "").strip()
APP_SECRET = str(mykeys.get("fs_app_secret", "") or "").strip()
ALLOWED_USERS = _to_allowed_set(mykeys.get("fs_allowed_users", []))
PUBLIC_ACCESS = not ALLOWED_USERS or "*" in ALLOWED_USERS

agent = GeneraticAgent()
threading.Thread(target=agent.run, daemon=True).start()
client, user_tasks = None, {}


def create_client():
    return lark.Client.builder().app_id(APP_ID).app_secret(APP_SECRET).log_level(lark.LogLevel.INFO).build()


def _card(text):
    return json.dumps({"config": {"wide_screen_mode": True}, "elements": [{"tag": "markdown", "content": text}]}, ensure_ascii=False)


def send_message(open_id, content, msg_type="text", use_card=False):
    if use_card:
        payload, real_type = _card(content), "interactive"
    elif msg_type == "text":
        payload, real_type = json.dumps({"text": content}, ensure_ascii=False), "text"
    else:
        payload, real_type = content, msg_type
    body = CreateMessageRequest.builder().receive_id_type("open_id").request_body(
        CreateMessageRequestBody.builder().receive_id(open_id).msg_type(real_type).content(payload).build()
    ).build()
    response = client.im.v1.message.create(body)
    if response.success():
        return response.data.message_id if response.data else None
    print(f"发送失败: {response.code}, {response.msg}")
    return None


def update_message(message_id, content):
    body = PatchMessageRequest.builder().message_id(message_id).request_body(
        PatchMessageRequestBody.builder().content(_card(content)).build()
    ).build()
    response = client.im.v1.message.patch(body)
    if not response.success():
        print(f"[ERROR] update_message 失败: {response.code}, {response.msg}")
    return response.success()


def _upload_image_sync(file_path):
    try:
        with open(file_path, "rb") as f:
            request = CreateImageRequest.builder().request_body(
                CreateImageRequestBody.builder().image_type("message").image(f).build()
            ).build()
            response = client.im.v1.image.create(request)
            if response.success():
                return response.data.image_key
            print(f"[ERROR] upload image failed: {response.code}, {response.msg}")
    except Exception as e:
        print(f"[ERROR] upload image failed {file_path}: {e}")
    return None


def _upload_file_sync(file_path):
    ext = os.path.splitext(file_path)[1].lower()
    file_type = _FILE_TYPE_MAP.get(ext, "stream")
    file_name = os.path.basename(file_path)
    try:
        with open(file_path, "rb") as f:
            request = CreateFileRequest.builder().request_body(
                CreateFileRequestBody.builder().file_type(file_type).file_name(file_name).file(f).build()
            ).build()
            response = client.im.v1.file.create(request)
            if response.success():
                return response.data.file_key
            print(f"[ERROR] upload file failed: {response.code}, {response.msg}")
    except Exception as e:
        print(f"[ERROR] upload file failed {file_path}: {e}")
    return None


def _download_image_sync(message_id, image_key):
    try:
        request = GetMessageResourceRequest.builder().message_id(message_id).file_key(image_key).type("image").build()
        response = client.im.v1.message_resource.get(request)
        if response.success():
            data = response.file.read() if hasattr(response.file, "read") else response.file
            return data, response.file_name
        print(f"[ERROR] download image failed: {response.code}, {response.msg}")
    except Exception as e:
        print(f"[ERROR] download image failed {image_key}: {e}")
    return None, None


def _download_file_sync(message_id, file_key, resource_type="file"):
    if resource_type == "audio":
        resource_type = "file"
    try:
        request = GetMessageResourceRequest.builder().message_id(message_id).file_key(file_key).type(resource_type).build()
        response = client.im.v1.message_resource.get(request)
        if response.success():
            data = response.file.read() if hasattr(response.file, "read") else response.file
            return data, response.file_name
        print(f"[ERROR] download {resource_type} failed: {response.code}, {response.msg}")
    except Exception as e:
        print(f"[ERROR] download {resource_type} failed {file_key}: {e}")
    return None, None


def _download_and_save_media(msg_type, content_json, message_id):
    data, filename = None, None
    if msg_type == "image":
        image_key = content_json.get("image_key")
        if image_key and message_id:
            data, filename = _download_image_sync(message_id, image_key)
            if not filename:
                filename = f"{image_key[:16]}.jpg"
    elif msg_type in ("audio", "file", "media"):
        file_key = content_json.get("file_key")
        if file_key and message_id:
            data, filename = _download_file_sync(message_id, file_key, msg_type)
            if not filename:
                filename = file_key[:16]
            if msg_type == "audio" and filename and not filename.endswith(".opus"):
                filename = f"{filename}.opus"
    if data and filename:
        file_path = os.path.join(MEDIA_DIR, os.path.basename(filename))
        with open(file_path, "wb") as f:
            f.write(data)
        return file_path, filename
    return None, None


def _describe_media(msg_type, file_path, filename):
    if msg_type == "image":
        return f"[image: {filename}]\n[Image: source: {file_path}]"
    if msg_type == "audio":
        return f"[audio: {filename}]\n[File: source: {file_path}]"
    if msg_type in ("file", "media"):
        return f"[{msg_type}: {filename}]\n[File: source: {file_path}]"
    return f"[{msg_type}]\n[File: source: {file_path}]"


def _send_local_file(open_id, file_path):
    if not os.path.isfile(file_path):
        send_message(open_id, f"⚠️ 文件不存在: {file_path}")
        return False
    ext = os.path.splitext(file_path)[1].lower()
    if ext in _IMAGE_EXTS:
        image_key = _upload_image_sync(file_path)
        if image_key:
            send_message(open_id, json.dumps({"image_key": image_key}, ensure_ascii=False), msg_type="image")
            return True
    else:
        file_key = _upload_file_sync(file_path)
        if file_key:
            msg_type = "media" if ext in _AUDIO_EXTS or ext in _VIDEO_EXTS else "file"
            send_message(open_id, json.dumps({"file_key": file_key}, ensure_ascii=False), msg_type=msg_type)
            return True
    send_message(open_id, f"⚠️ 文件发送失败: {os.path.basename(file_path)}")
    return False


def _send_generated_files(open_id, raw_text):
    for file_path in _extract_files(raw_text):
        _send_local_file(open_id, file_path)


def _build_user_message(message):
    msg_type = message.message_type
    message_id = message.message_id
    content_json = _parse_json(message.content)
    parts, image_paths = [], []
    if msg_type == "text":
        text = str(content_json.get("text", "") or "").strip()
        if text:
            parts.append(text)
    elif msg_type == "post":
        text, image_keys = _extract_post_content(content_json)
        if text:
            parts.append(text)
        for image_key in image_keys:
            file_path, filename = _download_and_save_media("image", {"image_key": image_key}, message_id)
            if file_path and filename:
                parts.append(_describe_media("image", file_path, filename))
                image_paths.append(file_path)
            else:
                parts.append("[image: download failed]")
    elif msg_type in ("image", "audio", "file", "media"):
        file_path, filename = _download_and_save_media(msg_type, content_json, message_id)
        if file_path and filename:
            parts.append(_describe_media(msg_type, file_path, filename))
            if msg_type == "image":
                image_paths.append(file_path)
        else:
            parts.append(f"[{msg_type}: download failed]")
    elif msg_type in ("share_chat", "share_user", "interactive", "share_calendar_event", "system", "merge_forward"):
        parts.append(_extract_share_card_content(content_json, msg_type))
    else:
        parts.append(_MSG_TYPE_MAP.get(msg_type, f"[{msg_type}]"))
    return "\n".join([p for p in parts if p]).strip(), image_paths


def handle_message(data):
    event, message, sender = data.event, data.event.message, data.event.sender
    open_id = sender.sender_id.open_id
    if not PUBLIC_ACCESS and open_id not in ALLOWED_USERS:
        print(f"未授权用户: {open_id}")
        return
    user_input, image_paths = _build_user_message(message)
    if not user_input:
        send_message(open_id, f"⚠️ 暂不支持处理此类飞书消息：{message.message_type}")
        return
    print(f"收到消息 [{open_id}] ({message.message_type}, {len(image_paths)} images): {user_input[:200]}")
    if message.message_type == "text" and user_input.startswith("/"):
        return handle_command(open_id, user_input)

    def run_agent():
        user_tasks[open_id] = {"running": True}
        try:
            msg_id, dq, last_text = send_message(open_id, "思考中...", use_card=True), agent.put_task(user_input, source="feishu", images=image_paths), ""
            while user_tasks.get(open_id, {}).get("running", False):
                time.sleep(3)
                item = None
                try:
                    while True:
                        item = dq.get_nowait()
                except Exception:
                    pass
                if item is None:
                    continue
                raw = item.get("done") or item.get("next", "")
                done = "done" in item
                show = _display_text(raw)
                if len(show) > 3500:
                    cut = show[-3000:]
                    if cut.count("```") % 2 == 1:
                        cut = "```\n" + cut
                    msg_id, last_text, show = send_message(open_id, "(继续...)", use_card=True), "", cut
                display = show if done else show + " ⏳"
                if display != last_text and msg_id:
                    update_message(msg_id, display)
                    last_text = display
                if done:
                    _send_generated_files(open_id, raw)
                    break
            if not user_tasks.get(open_id, {}).get("running", True):
                send_message(open_id, "已停止")
        except Exception as e:
            import traceback

            print(f"[ERROR] run_agent 异常: {e}")
            traceback.print_exc()
            send_message(open_id, f"错误: {str(e)}")
        finally:
            user_tasks.pop(open_id, None)

    threading.Thread(target=run_agent, daemon=True).start()


def handle_command(open_id, cmd):
    if cmd == "/stop":
        if open_id in user_tasks:
            user_tasks[open_id]["running"] = False
        agent.abort()
        send_message(open_id, "正在停止...")
    elif cmd == "/new":
        agent.abort()
        agent.history = []
        send_message(open_id, "已清空当前共享上下文")
    elif cmd == "/help":
        send_message(open_id, "命令列表:\n/stop - 停止当前任务\n/status - 查看状态\n/restore - 恢复上次对话历史\n/new - 开启新对话\n/help - 显示帮助")
    elif cmd == "/status":
        send_message(open_id, f"状态: {'空闲' if not agent.is_running else '运行中'}")
    elif cmd == "/restore":
        try:
            files = glob.glob("./temp/model_responses_*.txt")
            if not files:
                return send_message(open_id, "没有找到历史记录")
            latest = max(files, key=os.path.getmtime)
            with open(latest, "r", encoding="utf-8") as f:
                content = f.read()
            users = re.findall(r"=== USER ===\n(.+?)(?==== |$)", content, re.DOTALL)
            resps = re.findall(r"=== Response ===.*?\n(.+?)(?==== Prompt|$)", content, re.DOTALL)
            count = 0
            for u, r in zip(users, resps):
                u, r = u.strip(), r.strip()[:500]
                if u and r:
                    agent.history.extend([f"[USER]: {u}", f"[Agent] {r}"])
                    count += 1
            agent.abort()
            send_message(open_id, f"已恢复 {count} 轮对话\n来源: {os.path.basename(latest)}\n(仅恢复上下文，请输入新问题继续)")
        except Exception as e:
            send_message(open_id, f"恢复失败: {e}")
    else:
        send_message(open_id, f"未知命令: {cmd}")


def main():
    global client
    if not APP_ID or not APP_SECRET:
        print("错误: 请在 mykey.py 或 mykey.json 中配置 fs_app_id 和 fs_app_secret")
        sys.exit(1)
    client = create_client()
    handler = lark.EventDispatcherHandler.builder("", "").register_p2_im_message_receive_v1(handle_message).build()
    cli = lark.ws.Client(APP_ID, APP_SECRET, event_handler=handler, log_level=lark.LogLevel.INFO)
    print("=" * 50 + "\n飞书 Agent 已启动（长连接模式）\n" + f"App ID: {APP_ID}\n等待消息...\n" + "=" * 50)
    cli.start()


if __name__ == "__main__":
    main()