bash_go_service/shared/pkg/client/client.go

package client

import (
	"bytes"
	"encoding/json"
	"io"
	"net/http"
	"net/url"
	"path"

	"bash_go_service/shared/pkg/constants"
	"bash_go_service/shared/pkg/logger"
)

type Client struct {
	baseURL string
	client  *http.Client
}

type ClientOption func(*Client)

func WithBaseURL(baseURL string) ClientOption {
	return func(c *Client) {
		if baseURL != "" {
			c.baseURL = baseURL
		}
	}
}

func NewClient(opts ...ClientOption) *Client {
	client := &Client{
		baseURL: constants.BaseUrl, // 默认使用环境变量
		client: &http.Client{
			Timeout: constants.ClientTimeout,
		},
	}

	// 应用可选参数
	for _, opt := range opts {
		opt(client)
	}

	return client
}

func (c *Client) Get(uri string, query map[string]string, result interface{}) error {
	// 构建URL
	u, err := url.Parse(c.baseURL)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to parse base URL: %v", err)
		return err
	}
	u.Path = path.Join(u.Path, uri)

	// 添加query参数
	q := u.Query()
	for k, v := range query {
		q.Set(k, v)
	}
	u.RawQuery = q.Encode()

	// 发送请求
	resp, err := c.client.Get(u.String())
	if err != nil {
		logger.ErrorLogger.Printf("GET request failed: %v", err)
		return err
	}
	defer resp.Body.Close()

	// 读取响应
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to read response body: %v", err)
		return err
	}

	// 解析JSON
	if err := json.Unmarshal(body, result); err != nil {
		logger.ErrorLogger.Printf("Failed to unmarshal response: %v", err)
		return err
	}

	return nil
}

func (c *Client) Post(uri string, body interface{}, query map[string]string, result interface{}) error {
	// 构建URL
	u, err := url.Parse(c.baseURL)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to parse base URL: %v", err)
		return err
	}
	u.Path = path.Join(u.Path, uri)

	// 添加query参数(如果有)
	if query != nil {
		q := u.Query()
		for k, v := range query {
			q.Set(k, v)
		}
		u.RawQuery = q.Encode()
	}

	// 序列化请求体
	payload, err := json.Marshal(body)

	if err != nil {
		logger.ErrorLogger.Printf("Failed to marshal request body: %v", err)
		return err
	}

	// 发送请求
	resp, err := c.client.Post(u.String(), "application/json", bytes.NewBuffer(payload))
	if err != nil {
		logger.ErrorLogger.Printf("POST request failed: %v", err)
		return err
	}
	defer resp.Body.Close()

	// 读取响应
	respBody, err := io.ReadAll(resp.Body)

	logger.DebugLogger.Printf("Response body: %s", string(respBody))

	if err != nil {
		logger.ErrorLogger.Printf("Failed to read response body: %v", err)
		return err
	}

	// 解析JSON
	if err := json.Unmarshal(respBody, result); err != nil {
		logger.ErrorLogger.Printf("Failed to unmarshal response: %v", err)
		return err
	}

	return nil
}

func (c *Client) Put(uri string, body interface{}, query map[string]string, result interface{}) error {
	u, err := url.Parse(c.baseURL)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to parse base URL: %v", err)
		return err
	}
	u.Path = path.Join(u.Path, uri)

	if query != nil {
		q := u.Query()
		for k, v := range query {
			q.Set(k, v)
		}
		u.RawQuery = q.Encode()
	}

	payload, err := json.Marshal(body)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to marshal request body: %v", err)
		return err
	}

	req, err := http.NewRequest(http.MethodPut, u.String(), bytes.NewBuffer(payload))
	if err != nil {
		logger.ErrorLogger.Printf("Failed to create PUT request: %v", err)
		return err
	}
	req.Header.Set("Content-Type", "application/json")

	resp, err := c.client.Do(req)
	if err != nil {
		logger.ErrorLogger.Printf("PUT request failed: %v", err)
		return err
	}
	defer resp.Body.Close()

	respBody, err := io.ReadAll(resp.Body)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to read response body: %v", err)
		return err
	}

	if err := json.Unmarshal(respBody, result); err != nil {
		logger.ErrorLogger.Printf("Failed to unmarshal response: %v", err)
		return err
	}

	return nil
}

func (c *Client) Delete(uri string, query map[string]string, result interface{}) error {
	u, err := url.Parse(c.baseURL)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to parse base URL: %v", err)
		return err
	}
	u.Path = path.Join(u.Path, uri)

	if query != nil {
		q := u.Query()
		for k, v := range query {
			q.Set(k, v)
		}
		u.RawQuery = q.Encode()
	}

	req, err := http.NewRequest(http.MethodDelete, u.String(), nil)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to create DELETE request: %v", err)
		return err
	}

	resp, err := c.client.Do(req)
	if err != nil {
		logger.ErrorLogger.Printf("DELETE request failed: %v", err)
		return err
	}
	defer resp.Body.Close()

	respBody, err := io.ReadAll(resp.Body)
	if err != nil {
		logger.ErrorLogger.Printf("Failed to read response body: %v", err)
		return err
	}

	if err := json.Unmarshal(respBody, result); err != nil {
		logger.ErrorLogger.Printf("Failed to unmarshal response: %v", err)
		return err
	}

	return nil
}