// Package middleware provides HTTP middleware components for the CLI Proxy API server.// This file contains the request logging middleware that captures comprehensive// request and response data when enabled through configuration.package middleware import (	"bytes"	"io"	"strings" 	"github.com/gin-gonic/gin"	"github.com/router-for-me/CLIProxyAPI/v6/internal/logging") // RequestLoggingMiddleware creates a Gin middleware that logs HTTP requests and responses.// It captures detailed information about the request and response, including headers and body,// and uses the provided RequestLogger to record this data. If logging is disabled in the// logger, the middleware has minimal overhead.func RequestLoggingMiddleware(logger logging.RequestLogger) gin.HandlerFunc {	return func(c *gin.Context) {		path := c.Request.URL.Path		shouldLog := false		if strings.HasPrefix(path, "/v1") {			shouldLog = true		} 		if !shouldLog {			c.Next()			return		} 		// Early return if logging is disabled (zero overhead)		if !logger.IsEnabled() {			c.Next()			return		} 		// Capture request information		requestInfo, err := captureRequestInfo(c)		if err != nil {			// Log error but continue processing			// In a real implementation, you might want to use a proper logger here			c.Next()			return		} 		// Create response writer wrapper		wrapper := NewResponseWriterWrapper(c.Writer, logger, requestInfo)		c.Writer = wrapper 		// Process the request		c.Next() 		// Finalize logging after request processing		if err = wrapper.Finalize(c); err != nil {			// Log error but don't interrupt the response			// In a real implementation, you might want to use a proper logger here		}	}} // captureRequestInfo extracts relevant information from the incoming HTTP request.// It captures the URL, method, headers, and body. The request body is read and then// restored so that it can be processed by subsequent handlers.func captureRequestInfo(c *gin.Context) (*RequestInfo, error) {	// Capture URL	url := c.Request.URL.String()	if c.Request.URL.Path != "" {		url = c.Request.URL.Path		if c.Request.URL.RawQuery != "" {			url += "?" + c.Request.URL.RawQuery		}	} 	// Capture method	method := c.Request.Method 	// Capture headers	headers := make(map[string][]string)	for key, values := range c.Request.Header {		headers[key] = values	} 	// Capture request body	var body []byte	if c.Request.Body != nil {		// Read the body		bodyBytes, err := io.ReadAll(c.Request.Body)		if err != nil {			return nil, err		} 		// Restore the body for the actual request processing		c.Request.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))		body = bodyBytes	} 	return &RequestInfo{		URL:     url,		Method:  method,		Headers: headers,		Body:    body,	}, nil}