"""Tencent Cloud SMS adapter — implements SmsSender port."""

from app.core.logging import get_logger

from tencentcloud.common import credential
from tencentcloud.common.exception.tencent_cloud_sdk_exception import (
    TencentCloudSDKException,
)
from tencentcloud.sms.v20210111 import models as sms_models
from tencentcloud.sms.v20210111 import sms_client

logger = get_logger(__name__)

CODE_EXPIRE_MINUTES = 5


class TencentSmsSender:
    def __init__(
        self,
        secret_id: str,
        secret_key: str,
        sdk_app_id: str,
        sign_name: str,
        template_id: str,
        template_param_count: int = 2,
    ):
        self._secret_id = secret_id
        self._secret_key = secret_key
        self._sdk_app_id = sdk_app_id
        self._sign_name = sign_name
        self._template_id = template_id
        self._template_param_count = template_param_count

    def send_verification_code(self, phone: str, code: str) -> bool:
        if not self._secret_id or not self._secret_key:
            logger.error("Tencent SMS credentials not configured")
            return False

        cred = credential.Credential(self._secret_id, self._secret_key)
        client = sms_client.SmsClient(cred, "ap-guangzhou")

        param_configs = [
            [code, str(CODE_EXPIRE_MINUTES)],
            [code],
        ]
        if self._template_param_count == 1:
            param_configs = [[code], [code, str(CODE_EXPIRE_MINUTES)]]

        for template_params in param_configs:
            try:
                req = sms_models.SendSmsRequest()
                req.SmsSdkAppId = self._sdk_app_id
                req.SignName = self._sign_name
                req.TemplateId = self._template_id
                req.TemplateParamSet = template_params
                req.PhoneNumberSet = [f"+86{phone}"]

                resp = client.SendSms(req)
                if resp.SendStatusSet and resp.SendStatusSet[0].Code == "Ok":
                    return True

                status = resp.SendStatusSet[0] if resp.SendStatusSet else None
                error_code = status.Code if status else "UNKNOWN"
                if "TemplateParamSetNotMatchApprovedTemplate" in error_code:
                    continue
                logger.error(
                    "SMS send failed: %s - %s",
                    error_code,
                    status.Message if status else "",
                )
                return False

            except TencentCloudSDKException as e:
                if "TemplateParamSetNotMatchApprovedTemplate" in str(e):
                    continue
                logger.error("Tencent SMS SDK error: %s", e)
                return False
            except Exception as e:
                logger.error("SMS send exception: %s", e)
                return False

        logger.error("All SMS template param configs failed")
        return False