import logging

import httpx

logger = logging.getLogger(__name__)

TEMPLATE_SEND_URL = "https://api.weixin.qq.com/cgi-bin/message/template/send"
TEMPLATE_LIST_URL = "https://api.weixin.qq.com/cgi-bin/template/get_all_private_template"
SUBSCRIBE_SEND_URL = "https://api.weixin.qq.com/cgi-bin/message/subscribe/send"


class WeChatTemplate:

    def __init__(self, gateway):
        self._gateway = gateway

    async def send(
        self,
        to_user: str,
        template_id: str,
        data: dict,
        url: str = "",
        miniprogram: dict | None = None,
    ) -> bool:
        token = self._gateway.access_token if self._gateway else None
        if not token:
            return False

        payload = {
            "touser": to_user,
            "template_id": template_id,
            "data": {k: {"value": v} for k, v in data.items()},
        }
        if url:
            payload["url"] = url
        if miniprogram:
            payload["miniprogram"] = miniprogram

        try:
            async with httpx.AsyncClient(timeout=10.0) as client:
                resp = await client.post(f"{TEMPLATE_SEND_URL}?access_token={token}", json=payload)
                result = resp.json()
                return result.get("errcode") == 0
        except Exception:
            logger.exception("Send template message exception")
        return False

    async def list_templates(self) -> list[dict]:
        token = self._gateway.access_token if self._gateway else None
        if not token:
            return []

        try:
            async with httpx.AsyncClient(timeout=10.0) as client:
                resp = await client.get(f"{TEMPLATE_LIST_URL}?access_token={token}")
                data = resp.json()
                if "template_list" in data:
                    return data["template_list"]
                logger.warning(
                    "List templates failed: errcode=%s errmsg=%s",
                    data.get("errcode"),
                    data.get("errmsg"),
                )
        except Exception:
            logger.exception("List templates exception")
        return []

    async def send_subscribe(
        self,
        to_user: str,
        template_id: str,
        data: dict,
        page: str = "",
        miniprogram_state: str = "formal",
        lang: str = "zh_CN",
    ) -> bool:
        token = self._gateway.access_token if self._gateway else None
        if not token:
            return False

        payload = {
            "touser": to_user,
            "template_id": template_id,
            "data": {k: {"value": v} for k, v in data.items()},
            "miniprogram_state": miniprogram_state,
            "lang": lang,
        }
        if page:
            payload["page"] = page

        try:
            async with httpx.AsyncClient(timeout=10.0) as client:
                resp = await client.post(f"{SUBSCRIBE_SEND_URL}?access_token={token}", json=payload)
                result = resp.json()
                return result.get("errcode") == 0
        except Exception:
            logger.exception("Send subscribe message exception")
        return False