package notice

import (
	"bytes"
	"encoding/json"
	"errors"
	"fmt"
	"io/ioutil"
	"net/http"
)

// SendChineseSMS 发送国内手机验证码
func SendChineseSMS(user, pass, mobile, content string) error {
	params := make(map[string]interface{})
	params["account"] = user
	params["password"] = pass
	params["phone"] = mobile
	params["msg"] = content
	params["report"] = true

	bytesData, err := json.Marshal(params)
	if err != nil {
		return err
	}

	reader := bytes.NewReader(bytesData)
	url := "http://smssh1.253.com/msg/send/json"
	request, err := http.NewRequest("POST", url, reader)
	if err != nil {
		return err
	}

	request.Header.Set("Content-Type", "application/json;charset=UTF-8")

	client := http.Client{}
	resp, err := client.Do(request)
	if err != nil {
		return err
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return err
	}

	result := struct {
		Code     string `json:"code"`
		MsgID    string `json:"msgId"`
		Time     string `json:"time"`
		ErrorMsg string `json:"errorMsg"`
	}{}

	err = json.Unmarshal(respBytes, &result)
	if err != nil {
		return err
	}

	if result.Code != "0" {
		switch result.Code {
		case "103":
			return fmt.Errorf("one verification code per minute per phone")
		case "107":
			return fmt.Errorf("phone number format is not correct")
		case "135":
			return fmt.Errorf("up to 5 verification codes a day")
		default:
			return fmt.Errorf(result.ErrorMsg)
		}
	}

	return nil
}

// SendForeignSMS 发送国外手机验证码
func SendForeignSMS(user, pass, mobile, content string) error {
	params := make(map[string]interface{})
	params["account"] = user
	params["password"] = pass
	params["mobile"] = mobile
	params["msg"] = content
	params["report"] = true

	bytesData, err := json.Marshal(params)
	if err != nil {
		return err
	}

	reader := bytes.NewReader(bytesData)
	url := "http://intapi.253.com/send/json"
	request, err := http.NewRequest("POST", url, reader)
	if err != nil {
		return err
	}

	request.Header.Set("Content-Type", "application/json;charset=UTF-8")

	client := http.Client{}
	resp, err := client.Do(request)
	if err != nil {
		return err
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return err
	}

	result := struct {
		Code  string `json:"code"`
		Error string `json:"error"`
		MsgID string `json:"msgid"`
	}{}

	err = json.Unmarshal(respBytes, &result)
	if err != nil {
		return err
	}

	if result.Code != "0" {
		return errors.New(result.Error)
	}

	return nil
}