package aliyun

import (
	"context"
	"encoding/json"
	"fmt"
	"strings"

	"github.com/aliyun/alibaba-cloud-sdk-go/services/dysmsapi"

	"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) {
	regionID := config.RegionID
	if regionID == "" {
		regionID = "cn-hangzhou"
	}
	client, err := dysmsapi.NewClientWithAccessKey(regionID, config.AccessKeyID, config.AccessKeySecret)
	if err != nil {
		return failed(err)
	}

	request := dysmsapi.CreateSendSmsRequest()
	request.Scheme = "https"
	request.PhoneNumbers = strings.Join(sms.SplitAndTrim(message.PhoneNumber, ","), ",")
	request.SignName = config.SignName
	request.TemplateCode = config.TemplateID
	request.TemplateParam = message.MsgContent

	response, err := client.SendSms(request)
	if err != nil {
		return failed(err)
	}
	data := map[string]any{
		"provider":     "aliyun",
		"requestId":    response.RequestId,
		"bizId":        response.BizId,
		"providerCode": response.Code,
	}
	if response.Code != "OK" {
		err = fmt.Errorf("阿里云短信发送失败: %s", response.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) {
	var sdkDetail map[string]any
	_ = json.Unmarshal([]byte(err.Error()), &sdkDetail)
	return sms.Result{Code: 502, Message: err.Error(), Data: sdkDetail}, err
}