"""
空运群 BOT 回话。

本文件职责：有即时 `response_url` 就流式回；没有（发文件走存档）就打本机桥 `/send-group`，
由长连接 `aibot_send_msg` 主动往群里说。
禁止：走海运 appchat/send；在回调线程等 LLM。
"""

from __future__ import annotations

import logging
import uuid
from typing import Any

import httpx

from agent.config import get_settings

logger = logging.getLogger(__name__)


class AibotReplyClient:
    """
    空运群出站客户端。

    一次 @ 若带了 response_url，优先走流式回复。
    存档听到附件时没有 url：改走桥主动发言。该群须先被 @ 过，企微才允许主动说。
    """

    def __init__(self, response_url: str = "", timeout_sec: float = 8.0) -> None:
        self._url = (response_url or "").strip()
        self._timeout = timeout_sec
        self.sent: list[dict[str, Any]] = []

    def send_group(
        self,
        *,
        chat_id: str,
        content: str,
        mention_userids: list[str] | None = None,
    ) -> dict[str, Any]:
        _ = mention_userids
        text = str(content or "").strip()
        self.sent.append({"chat_id": chat_id, "content": text, "kind": "text"})
        if not text:
            return {"ok": False, "error": "empty"}
        if self._url:
            return self._send_stream(chat_id, text)
        return self._send_proactive(str(chat_id or "").strip(), text)

    def _send_stream(self, chat_id: str, text: str) -> dict[str, Any]:
        """@ 当场回话：POST 企微给的 response_url。"""
        body = {
            "msgtype": "stream",
            "stream": {
                "id": uuid.uuid4().hex,
                "finish": True,
                "content": text,
            },
        }
        try:
            resp = httpx.post(self._url, json=body, timeout=self._timeout)
            ok = 200 <= resp.status_code < 300
            if not ok:
                logger.warning("aibot 回话 HTTP=%s chat=%s", resp.status_code, chat_id)
            return {"ok": ok, "status": resp.status_code}
        except Exception:
            logger.exception("aibot 回话网络失败 chat=%s", chat_id)
            return {"ok": False, "error": "network"}

    def _send_proactive(self, chat_id: str, text: str) -> dict[str, Any]:
        """
        没有 response_url（典型：会话存档听到附件）时，让桥主动往群里说。

        副作用：回环 HTTP 打 8913，不直连企微。桥未连上或该群从未 @ 过，企微不会投递。
        """
        if not chat_id:
            logger.warning("aibot 主动发言缺少 chat_id")
            return {"ok": False, "error": "no_chat_id"}
        settings = get_settings()
        base = str(getattr(settings, "wecom_aibot_bridge_url", "") or "").rstrip("/")
        if not base:
            logger.warning("aibot 主动发言未配置 WECOM_AIBOT_BRIDGE_URL chat=%s", chat_id)
            return {"ok": False, "error": "no_bridge"}
        headers = {"Content-Type": "application/json"}
        token = str(getattr(settings, "wecom_aibot_bridge_token", "") or "").strip()
        if token:
            headers["X-Aibot-Bridge-Token"] = token
            headers["X-Ytd-Aibot-Bridge-Token"] = token
        try:
            # 现网官方桥是 POST /send；本仓库骨架桥是 /send-group。两个都试，先打官方口径。
            resp = httpx.post(
                f"{base}/send",
                json={"chatid": chat_id, "operation": "text", "content": text},
                headers=headers,
                timeout=self._timeout,
            )
            if resp.status_code == 404:
                resp = httpx.post(
                    f"{base}/send-group",
                    json={"chat_id": chat_id, "content": text, "chat_type": 2},
                    headers=headers,
                    timeout=self._timeout,
                )
            ok = 200 <= resp.status_code < 300
            if not ok:
                logger.warning(
                    "aibot 主动发言 HTTP=%s chat=%s body=%s",
                    resp.status_code,
                    chat_id,
                    (resp.text or "")[:200],
                )
            return {"ok": ok, "status": resp.status_code}
        except Exception:
            logger.exception("aibot 主动发言网络失败 chat=%s", chat_id)
            return {"ok": False, "error": "network"}

    def send_group_file(
        self,
        *,
        chat_id: str,
        filename: str,
        filepath: str = "",
        file_b64: str = "",
    ) -> dict[str, Any]:
        """
        空运群发填好的报价模板。走桥 /send-file，由长连接上传素材再 aibot_send_msg。

        不走海运 appchat。该群须先 @ 过小助手，企微才投递。
        """
        import base64
        from pathlib import Path

        room = str(chat_id or "").strip()
        name = str(filename or "quote.xlsx").strip() or "quote.xlsx"
        raw = b""
        if filepath:
            try:
                raw = Path(filepath).read_bytes()
            except OSError as exc:
                logger.warning("aibot 读模板失败 chat=%s err=%s", room, exc)
                return {"ok": False, "error": f"read_file:{exc}"}
        elif file_b64:
            try:
                raw = base64.b64decode(file_b64)
            except Exception:
                logger.warning("aibot 模板解码失败 chat=%s", room)
                return {"ok": False, "error": "b64"}
        self.sent.append({"chat_id": room, "filename": name, "kind": "file"})
        if not room or not raw:
            return {"ok": False, "error": "file_empty"}
        settings = get_settings()
        base = str(getattr(settings, "wecom_aibot_bridge_url", "") or "").rstrip("/")
        if not base:
            logger.warning("aibot 发文件未配置 WECOM_AIBOT_BRIDGE_URL chat=%s", room)
            return {"ok": False, "error": "no_bridge"}
        headers = {"Content-Type": "application/json"}
        token = str(getattr(settings, "wecom_aibot_bridge_token", "") or "").strip()
        if token:
            headers["X-Aibot-Bridge-Token"] = token
            headers["X-Ytd-Aibot-Bridge-Token"] = token
        payload = {
            "chatid": room,
            "chat_id": room,
            "filename": name,
            "file_b64": base64.b64encode(raw).decode("ascii"),
        }
        try:
            resp = httpx.post(
                f"{base}/send-file",
                json=payload,
                headers=headers,
                timeout=max(self._timeout, 45.0),
            )
            ok = 200 <= resp.status_code < 300
            if not ok:
                logger.warning(
                    "aibot 发文件 HTTP=%s chat=%s body=%s",
                    resp.status_code,
                    room,
                    (resp.text or "")[:200],
                )
            return {"ok": ok, "status": resp.status_code}
        except Exception:
            logger.exception("aibot 发文件网络失败 chat=%s", room)
            return {"ok": False, "error": "network"}