// Package modules provides a pluggable routing module system for extending// the API server with optional features without modifying core routing logic.package modules import (	"fmt" 	"github.com/gin-gonic/gin"	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"	"github.com/router-for-me/CLIProxyAPI/v6/sdk/api/handlers") // Context encapsulates the dependencies exposed to routing modules during// registration. Modules can use the Gin engine to attach routes, the shared// BaseAPIHandler for constructing SDK-specific handlers, and the resolved// authentication middleware for protecting routes that require API keys.type Context struct {	Engine         *gin.Engine	BaseHandler    *handlers.BaseAPIHandler	Config         *config.Config	AuthMiddleware gin.HandlerFunc} // RouteModule represents a pluggable routing module that can register routes// and handle configuration updates independently of the core server.//// DEPRECATED: Use RouteModuleV2 for new modules. This interface is kept for// backwards compatibility and will be removed in a future version.type RouteModule interface {	// Name returns a human-readable identifier for the module	Name() string 	// Register sets up routes and handlers for this module.	// It receives the Gin engine, base handlers, and current configuration.	// Returns an error if registration fails (errors are logged but don't stop the server).	Register(engine *gin.Engine, baseHandler *handlers.BaseAPIHandler, cfg *config.Config) error 	// OnConfigUpdated is called when the configuration is reloaded.	// Modules can respond to configuration changes here.	// Returns an error if the update cannot be applied.	OnConfigUpdated(cfg *config.Config) error} // RouteModuleV2 represents a pluggable bundle of routes that can integrate with// the API server without modifying its core routing logic. Implementations can// attach routes during Register and react to configuration updates via// OnConfigUpdated.//// This is the preferred interface for new modules. It uses Context for cleaner// dependency injection and supports idempotent registration.type RouteModuleV2 interface {	// Name returns a unique identifier for logging and diagnostics.	Name() string 	// Register wires the module's routes into the provided Gin engine. Modules	// should treat multiple calls as idempotent and avoid duplicate route	// registration when invoked more than once.	Register(ctx Context) error 	// OnConfigUpdated notifies the module when the server configuration changes	// via hot reload. Implementations can refresh cached state or emit warnings.	OnConfigUpdated(cfg *config.Config) error} // RegisterModule is a helper that registers a module using either the V1 or V2// interface. This allows gradual migration from V1 to V2 without breaking// existing modules.//// Example usage:////	ctx := modules.Context{//	    Engine:         engine,//	    BaseHandler:    baseHandler,//	    Config:         cfg,//	    AuthMiddleware: authMiddleware,//	}//	if err := modules.RegisterModule(ctx, ampModule); err != nil {//	    log.Errorf("Failed to register module: %v", err)//	}func RegisterModule(ctx Context, mod interface{}) error {	// Try V2 interface first (preferred)	if v2, ok := mod.(RouteModuleV2); ok {		return v2.Register(ctx)	} 	// Fall back to V1 interface for backwards compatibility	if v1, ok := mod.(RouteModule); ok {		return v1.Register(ctx.Engine, ctx.BaseHandler, ctx.Config)	} 	return fmt.Errorf("unsupported module type %T (must implement RouteModule or RouteModuleV2)", mod)}