refactor: clean code

internal/pkg/sdk3rd/gname/client.go

@@ -0,0 +1,104 @@
+package gnamesdk
+
+import (
+	"crypto/md5"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/go-resty/resty/v2"
+)
+
+type Client struct {
+	appId  string
+	appKey string
+
+	client *resty.Client
+}
+
+func NewClient(appId, appKey string) *Client {
+	client := resty.New()
+
+	return &Client{
+		appId:  appId,
+		appKey: appKey,
+		client: client,
+	}
+}
+
+func (c *Client) WithTimeout(timeout time.Duration) *Client {
+	c.client.SetTimeout(timeout)
+	return c
+}
+
+func (c *Client) generateSignature(params map[string]string) string {
+	// Step 1: Sort parameters by ASCII order
+	var keys []string
+	for k := range params {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	// Step 2: Create string A with URL-encoded values
+	var pairs []string
+	for _, k := range keys {
+		encodedValue := url.QueryEscape(params[k])
+		pairs = append(pairs, fmt.Sprintf("%s=%s", k, encodedValue))
+	}
+	stringA := strings.Join(pairs, "&")
+
+	// Step 3: Append appkey to create string B
+	stringB := stringA + c.appKey
+
+	// Step 4: Calculate MD5 and convert to uppercase
+	hash := md5.Sum([]byte(stringB))
+	return strings.ToUpper(fmt.Sprintf("%x", hash))
+}
+
+func (c *Client) sendRequest(path string, params interface{}) (*resty.Response, error) {
+	data := make(map[string]string)
+	if params != nil {
+		temp := make(map[string]any)
+		jsonb, _ := json.Marshal(params)
+		json.Unmarshal(jsonb, &temp)
+		for k, v := range temp {
+			if v != nil {
+				data[k] = fmt.Sprintf("%v", v)
+			}
+		}
+	}
+	data["appid"] = c.appId
+	data["gntime"] = fmt.Sprintf("%d", time.Now().Unix())
+	data["gntoken"] = c.generateSignature(data)
+
+	url := "http://api.gname.com" + path
+	req := c.client.R().
+		SetHeader("Content-Type", "application/x-www-form-urlencoded").
+		SetFormData(data)
+	resp, err := req.Post(url)
+	if err != nil {
+		return resp, fmt.Errorf("gname api error: failed to send request: %w", err)
+	} else if resp.IsError() {
+		return resp, fmt.Errorf("gname api error: unexpected status code: %d, resp: %s", resp.StatusCode(), resp.Body())
+	}
+
+	return resp, nil
+}
+
+func (c *Client) sendRequestWithResult(path string, params interface{}, result BaseResponse) error {
+	resp, err := c.sendRequest(path, params)
+	if err != nil {
+		return err
+	}
+
+	if err := json.Unmarshal(resp.Body(), &result); err != nil {
+		return fmt.Errorf("gname api error: failed to parse response: %w", err)
+	} else if errcode := result.GetCode(); errcode != 1 {
+		return fmt.Errorf("gname api error: %d - %s", errcode, result.GetMessage())
+	}
+
+	return nil
+}