package helper

import (
	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	fc_open20210406 "github.com/alibabacloud-go/fc-open-20210406/v2/client"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
	"os"
)

type AlibabaCloud struct {
	AccessKeyId     string
	AccessKeySecret string
	Endpoint        string
	ServiceName     string
	FunctionName    string
	Body            []byte
}

func GetAlibabaCloudByEnv() *AlibabaCloud {
	return &AlibabaCloud{
		AccessKeyId:     os.Getenv("AccessKeyId"),
		AccessKeySecret: os.Getenv("AccessKeySecret"),
		Endpoint:        os.Getenv("Endpoint"),
		ServiceName:     os.Getenv("ServiceName"),
		FunctionName:    os.Getenv("FunctionName"),
	}
}

/**
 * 使用AK&SK初始化账号Client
 * @param accessKeyId
 * @param accessKeySecret
 * @return Client
 * @throws Exception
 */
func createClient(c *AlibabaCloud) (_result *fc_open20210406.Client, _err error) {
	config := &openapi.Config{
		// 必填，您的 AccessKey ID
		AccessKeyId: tea.String(c.AccessKeyId),
		// 必填，您的 AccessKey Secret
		AccessKeySecret: tea.String(c.AccessKeySecret),
	}
	// 访问的域名, 如：1436712680323437.cn-shenzhen.fc.aliyuncs.com
	config.Endpoint = tea.String(c.Endpoint)
	_result = &fc_open20210406.Client{}
	_result, _err = fc_open20210406.NewClient(config)
	return _result, _err
}

func Call(c *AlibabaCloud) (_result []byte, _err error) {
	// 工程代码泄露可能会导致AccessKey泄露，并威胁账号下所有资源的安全性。以下代码示例仅供参考，建议使用更安全的 STS 方式，更多鉴权访问方式请参见：https://help.aliyun.com/document_detail/378661.html
	client, _err := createClient(c)
	if _err != nil {
		return nil, _err
	}

	invokeFunctionHeaders := &fc_open20210406.InvokeFunctionHeaders{}
	invokeFunctionRequest := &fc_open20210406.InvokeFunctionRequest{
		Body: c.Body,
	}
	runtime := &util.RuntimeOptions{}
	res, tryErr := func() (_r *fc_open20210406.InvokeFunctionResponse, _e error) {
		defer func() {
			if r := tea.Recover(recover()); r != nil {
				_e = r
			}
		}()
		// 复制代码运行请自行打印 API 的返回值
		_r, _err = client.InvokeFunctionWithOptions(tea.String(c.ServiceName), tea.String(c.FunctionName), invokeFunctionRequest, invokeFunctionHeaders, runtime)
		if _err != nil {
			return nil, _err
		}

		return _r, nil
	}()

	if tryErr != nil {
		var error = &tea.SDKError{}
		if _t, ok := tryErr.(*tea.SDKError); ok {
			error = _t
		} else {
			error.Message = tea.String(tryErr.Error())
		}
		// 如有需要，请打印 error
		_, _err = util.AssertAsString(error.Message)
		if _err != nil {
			return nil, _err
		}
	}
	return res.Body, _err
}