package tencent

import (
	"context"
	"fmt"

	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile"
	tencentsdk "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/sms/v20190711"

	"git.5iot.com/iotlcm-public/iotlcm-sms/internal/sms"
)

type Provider struct{}

func New() *Provider { return &Provider{} }

func (p *Provider) Send(_ context.Context, config sms.Config, message sms.Message) (sms.Result, error) {
	credential := common.NewCredential(config.AccessKeyID, config.AccessKeySecret)
	clientProfile := profile.NewClientProfile()
	clientProfile.HttpProfile.Endpoint = "sms.tencentcloudapi.com"
	client, err := tencentsdk.NewClient(credential, "ap-beijing", clientProfile)
	if err != nil {
		return failed(err)
	}

	request := tencentsdk.NewSendSmsRequest()
	request.SmsSdkAppid = common.StringPtr(config.SDKAppID)
	request.Sign = common.StringPtr(config.SignName)
	request.TemplateID = common.StringPtr(config.TemplateID)
	request.TemplateParamSet = common.StringPtrs(sms.SplitAndTrim(message.MsgContent, "|"))
	request.PhoneNumberSet = common.StringPtrs(sms.SplitAndTrim(message.PhoneNumber, ","))

	response, err := client.SendSms(request)
	if err != nil {
		return failed(err)
	}
	if response.Response == nil || len(response.Response.SendStatusSet) == 0 {
		err = fmt.Errorf("腾讯云未返回短信发送状态")
		return failed(err)
	}

	status := response.Response.SendStatusSet[0]
	data := map[string]any{
		"provider":     "tencent",
		"requestId":    stringValue(response.Response.RequestId),
		"serialNo":     stringValue(status.SerialNo),
		"phoneNumber":  stringValue(status.PhoneNumber),
		"providerCode": stringValue(status.Code),
	}
	if stringValue(status.Code) != "Ok" {
		err = fmt.Errorf("腾讯云短信发送失败: %s", stringValue(status.Message))
		return sms.Result{Code: 502, Message: err.Error(), Data: data}, err
	}
	return sms.Result{Code: 0, Message: "发送成功", Data: data}, nil
}

func failed(err error) (sms.Result, error) {
	return sms.Result{Code: 502, Message: err.Error()}, err
}

func stringValue(value *string) string {
	if value == nil {
		return ""
	}
	return *value
}