Merge pull request 'develop' (#30) from develop into main

Reviewed-on: goffee/core#30

.gitignore

@@ -1,2 +1,3 @@
 tmp
-.DS_STore
+.DS_STore
+.idea

README.md

@@ -1,4 +1,3 @@
-# GoCondor Core 
-![Build Status](https://github.com/gocondor/core/actions/workflows/build-main.yml/badge.svg) ![Test Status](https://github.com/gocondor/core/actions/workflows/test-main.yml/badge.svg) [![Coverage Status](https://coveralls.io/repos/github/gocondor/core/badge.svg?branch=main)](https://coveralls.io/github/gocondor/core?branch=main&cache=false) [![GoDoc](https://godoc.org/github.com/gocondor/core?status.svg)](https://godoc.org/github.com/gocondor/core) [![Go Report Card](https://goreportcard.com/badge/github.com/gocondor/core)](https://goreportcard.com/report/github.com/gocondor/core)
+# Goffee Core 
 
-The core packages of GoCondor framework
+The core packages of Goffee framework

cache.go

@@ -16,6 +16,9 @@ type Cache struct {
 	redis *redis.Client
 }
 
+// NewCache initializes a new Cache instance with the provided configuration and connects to a Redis database.
+// If caching is enabled in the provided configuration but the connection to Redis fails, it causes a panic.
+// Returns a pointer to the initialized Cache structure.
 func NewCache(cacheConfig CacheConfig) *Cache {
 	ctx = context.Background()
 	dbStr := os.Getenv("REDIS_DB")
@@ -40,6 +43,7 @@ func NewCache(cacheConfig CacheConfig) *Cache {
 	}
 }
 
+// Set stores a key-value pair in the Redis cache with no expiration. Returns an error if the operation fails.
 func (c *Cache) Set(key string, value string) error {
 	err := c.redis.Set(ctx, key, value, 0).Err()
 	if err != nil {
@@ -48,6 +52,8 @@ func (c *Cache) Set(key string, value string) error {
 	return nil
 }
 
+// SetWithExpiration stores a key-value pair in the cache with a specified expiration duration.
+// Returns an error if the operation fails.
 func (c *Cache) SetWithExpiration(key string, value string, expiration time.Duration) error {
 	err := c.redis.Set(ctx, key, value, expiration).Err()
 	if err != nil {
@@ -56,6 +62,7 @@ func (c *Cache) SetWithExpiration(key string, value string, expiration time.Dura
 	return nil
 }
 
+// Get retrieves the value associated with the provided key from the cache. Returns an error if the operation fails.
 func (c *Cache) Get(key string) (string, error) {
 	result, err := c.redis.Get(ctx, key).Result()
 	if err != nil {
@@ -64,6 +71,7 @@ func (c *Cache) Get(key string) (string, error) {
 	return result, nil
 }
 
+// Delete removes the specified key from the cache and returns an error if the operation fails.
 func (c *Cache) Delete(key string) error {
 	err := c.redis.Del(ctx, key).Err()
 	if err != nil {

config.go

@@ -22,6 +22,10 @@ type GormConfig struct {
 	EnableGorm bool
 }
 
+type QueueConfig struct {
+	EnableQueue bool
+}
+
 type CacheConfig struct {
 	EnableCache bool
 }

context.go

@@ -19,6 +19,7 @@ import (
 	"syscall"
 
 	"git.smarteching.com/goffee/core/logger"
+	"github.com/hibiken/asynq"
 	"gorm.io/gorm"
 )
 
@@ -53,7 +54,11 @@ func (c *Context) Next() {
 }
 
 func (c *Context) prepare(ctx *Context) {
-	ctx.Request.httpRequest.ParseMultipartForm(int64(app.Config.Request.MaxUploadFileSize))
+	// Only parse multipart form if it hasn't been parsed already
+	// This prevents race conditions when multiple goroutines might access the same request
+	if ctx.Request.httpRequest.MultipartForm == nil {
+		ctx.Request.httpRequest.ParseMultipartForm(int64(app.Config.Request.MaxUploadFileSize))
+	}
 }
 
 func (c *Context) GetPathParam(key string) interface{} {
@@ -68,8 +73,9 @@ func (c *Context) RequestParamExists(key string) bool {
 	return c.Request.httpRequest.Form.Has(key)
 }
 
-func (c *Context) GetRequesForm() interface{} {
-	return c.Request.httpRequest.Form
+func (c *Context) GetRequesForm(key string) interface{} {
+	c.Request.httpRequest.ParseForm()
+	return c.Request.httpRequest.Form[key]
 }
 
 func (c *Context) GetRequesBodyMap() map[string]interface{} {
@@ -111,34 +117,51 @@ func (c *Context) GetCookie() (UserCookie, error) {
 	return user, nil
 }
 
-func (c *Context) GetUploadedFile(name string) *UploadedFileInfo {
+func (c *Context) GetQueueClient() *asynq.Client {
+
+	redisAddr := fmt.Sprintf("%v:%v", os.Getenv("REDIS_HOST"), os.Getenv("REDIS_PORT"))
+	client := asynq.NewClient(asynq.RedisClientOpt{Addr: redisAddr})
+
+	return client
+}
+
+func (c *Context) GetUploadedFile(name string) (*UploadedFileInfo, error) {
 	file, fileHeader, err := c.Request.httpRequest.FormFile(name)
 	if err != nil {
-		panic(fmt.Sprintf("error with file,[%v]", err.Error()))
+		return nil, fmt.Errorf("error retrieving file: %v", err)
 	}
 	defer file.Close()
+
+	// Extract the file extension
 	ext := strings.TrimPrefix(path.Ext(fileHeader.Filename), ".")
 	tmpFilePath := filepath.Join(os.TempDir(), fileHeader.Filename)
 	tmpFile, err := os.Create(tmpFilePath)
 	if err != nil {
-		panic(fmt.Sprintf("error with file,[%v]", err.Error()))
+		return nil, fmt.Errorf("error creating temporary file: %v", err)
 	}
+	defer tmpFile.Close()
+	// Copy the uploaded file content to the temporary file
 	buff := make([]byte, 100)
 	for {
 		n, err := file.Read(buff)
 		if err != nil && err != io.EOF {
-			panic("error with uploaded file")
+			return nil, fmt.Errorf("error reading uploaded file: %v", err)
 		}
 		if n == 0 {
 			break
 		}
-		n, _ = tmpFile.Write(buff[:n])
+		_, err = tmpFile.Write(buff[:n])
+		if err != nil {
+			return nil, fmt.Errorf("error writing to temporary file: %v", err)
+		}
 	}
+
+	// Get file info for the temporary file
 	tmpFileInfo, err := os.Stat(tmpFilePath)
 	if err != nil {
-		panic(fmt.Sprintf("error with file,[%v]", err.Error()))
+		return nil, fmt.Errorf("error getting file info: %v", err)
 	}
-	defer tmpFile.Close()
+
 	uploadedFileInfo := &UploadedFileInfo{
 		FullPath:             tmpFilePath,
 		Name:                 fileHeader.Filename,
@@ -146,7 +169,7 @@ func (c *Context) GetUploadedFile(name string) *UploadedFileInfo {
 		Extension:            ext,
 		Size:                 int(tmpFileInfo.Size()),
 	}
-	return uploadedFileInfo
+	return uploadedFileInfo, nil
 }
 
 func (c *Context) MoveFile(sourceFilePath string, destFolderPath string) error {
@@ -175,7 +198,7 @@ func (c *Context) MoveFile(sourceFilePath string, destFolderPath string) error {
 	for {
 		n, err := srcFile.Read(buff)
 		if err != nil && err != io.EOF {
-			panic(fmt.Sprintf("error moving file %v", sourceFilePath))
+			return fmt.Errorf("error moving file: %v", sourceFilePath)
 		}
 		if n == 0 {
 			break
@@ -219,7 +242,7 @@ func (c *Context) CopyFile(sourceFilePath string, destFolderPath string) error {
 	for {
 		n, err := srcFile.Read(buff)
 		if err != nil && err != io.EOF {
-			panic(fmt.Sprintf("error moving file %v", sourceFilePath))
+			return fmt.Errorf("error moving file: %v", sourceFilePath)
 		}
 		if n == 0 {
 			break

cookies.go

@@ -21,19 +21,24 @@ import (
 	"strings"
 )
 
+// ErrValueTooLong indicates that the cookie value exceeds the allowed length limit.
+// ErrInvalidValue signifies that the cookie value is in an invalid format.
 var (
 	ErrValueTooLong = errors.New("cookie value too long")
 	ErrInvalidValue = errors.New("invalid cookie value")
 )
 
-// Declare the User type.
+// UserCookie represents a structure to hold user-specific data stored in a cookie, including Email and Token fields.
 type UserCookie struct {
 	Email string
 	Token string
 }
 
+// secretcookie is a global variable used to store the decoded secret key for encrypting and decrypting cookies.
 var secretcookie []byte
 
+// GetCookie retrieves and decrypts the user cookie from the provided HTTP request and returns it as a UserCookie.
+// Returns an error if the cookie retrieval, decryption, or decoding process fails.
 func GetCookie(r *http.Request) (UserCookie, error) {
 
 	var err error
@@ -78,6 +83,7 @@ func GetCookie(r *http.Request) (UserCookie, error) {
 
 }
 
+// SetCookie sets an encrypted cookie with a user's email and token, using gob encoding for data serialization.
 func SetCookie(w http.ResponseWriter, email string, token string) error {
 	// Initialize a User struct containing the data that we want to store in the
 	// cookie.
@@ -138,6 +144,8 @@ func SetCookie(w http.ResponseWriter, email string, token string) error {
 	return nil
 }
 
+// CookieWrite writes a secure HTTP cookie to the response writer after base64 encoding its value.
+// Returns ErrValueTooLong if the cookie string exceeds the 4096-byte size limit.
 func CookieWrite(w http.ResponseWriter, cookie http.Cookie) error {
 	// Encode the cookie value using base64.
 	cookie.Value = base64.URLEncoding.EncodeToString([]byte(cookie.Value))
@@ -154,6 +162,8 @@ func CookieWrite(w http.ResponseWriter, cookie http.Cookie) error {
 	return nil
 }
 
+// CookieRead retrieves a base64-encoded cookie value by name from the HTTP request and decodes it.
+// Returns the decoded value as a string or an error if the cookie is not found or the value is invalid.
 func CookieRead(r *http.Request, name string) (string, error) {
 	// Read the cookie as normal.
 	cookie, err := r.Cookie(name)
@@ -173,6 +183,9 @@ func CookieRead(r *http.Request, name string) (string, error) {
 	return string(value), nil
 }
 
+// CookieWriteEncrypted encrypts the cookie's value using AES-GCM and writes it to the HTTP response writer.
+// The cookie name is authenticated along with its value.
+// It returns an error if encryption fails or the cookie exceeds the maximum allowed length.
 func CookieWriteEncrypted(w http.ResponseWriter, cookie http.Cookie, secretKey []byte) error {
 	// Create a new AES cipher block from the secret key.
 	block, err := aes.NewCipher(secretKey)
@@ -213,6 +226,8 @@ func CookieWriteEncrypted(w http.ResponseWriter, cookie http.Cookie, secretKey [
 	return CookieWrite(w, cookie)
 }
 
+// CookieReadEncrypted reads an encrypted cookie, decrypts its value using AES-GCM, and validates its name before returning.
+// Returns the plaintext cookie value or an error if decryption or validation fails.
 func CookieReadEncrypted(r *http.Request, name string, secretKey []byte) (string, error) {
 	// Read the encrypted value from the cookie as normal.
 	encryptedValue, err := CookieRead(r, name)

core.go

@@ -6,6 +6,7 @@
 package core
 
 import (
+	"context"
 	"embed"
 	"fmt"
 	"log"
@@ -39,22 +40,34 @@ var basePath string
 var runMode string
 var disableEvents bool = false
 
+// components_resources holds embedded file system data, typically for templates or other embedded resources.
+//
 //go:embed all:template
 var components_resources embed.FS
 
+// configContainer is a configuration structure that holds request-specific configurations for the application.
 type configContainer struct {
 	Request RequestConfig
 }
 
+// App is a struct representing the main application container and its core components.
 type App struct {
-	t      int // for tracking hooks
+	t      int // for tracking hooks (deprecated - maintained for backward compatibility)
 	chain  *chain
 	hooks  *Hooks
 	Config *configContainer
 }
 
+// requestContext holds request-specific chain execution state
+type requestContext struct {
+	chainIndex int
+	chainNodes []interface{}
+}
+
+// app is a global instance of the App structure used to manage application configuration and lifecycle.
 var app *App
 
+// New initializes and returns a new instance of the App structure with default configurations and chain.
 func New() *App {
 	app = &App{
 		chain: &chain{},
@@ -66,24 +79,29 @@ func New() *App {
 	return app
 }
 
+// ResolveApp returns the global instance of the App, providing access to its methods and configuration components.
 func ResolveApp() *App {
 	return app
 }
 
+// SetLogsDriver sets the logging driver to be used by the application.
 func (app *App) SetLogsDriver(d logger.LogsDriver) {
 	logsDriver = &d
 }
 
+// Bootstrap initializes the application by setting up the logger, router, and events manager.
 func (app *App) Bootstrap() {
 	loggr = logger.NewLogger(*logsDriver)
 	NewRouter()
 	NewEventsManager()
 }
 
+// RegisterTemplates initializes the application template system by embedding provided templates for rendering views.
 func (app *App) RegisterTemplates(templates_resources embed.FS) {
 	NewTemplates(components_resources, templates_resources)
 }
 
+// Run initializes the application's router, configures HTTPS if enabled, and starts the HTTP/HTTPS server.
 func (app *App) Run(router *httprouter.Router) {
 	portNumber := os.Getenv("App_HTTP_PORT")
 	if portNumber == "" {
@@ -93,7 +111,7 @@ func (app *App) Run(router *httprouter.Router) {
 
 	// check if template engine is enable
 	TemplateEnableStr := os.Getenv("TEMPLATE_ENABLE")
-	if TemplateEnableStr == "" {
+	if "" == TemplateEnableStr {
 		TemplateEnableStr = "false"
 	}
 	TemplateEnable, _ := strconv.ParseBool(TemplateEnableStr)
@@ -102,13 +120,33 @@ func (app *App) Run(router *httprouter.Router) {
 		router.ServeFiles("/public/*filepath", http.Dir("storage/public"))
 	}
 
+	// check if app engine is enable
+	AppEnableStr := os.Getenv("APP_ENABLE")
+	if "" == AppEnableStr {
+		AppEnableStr = "false"
+	}
+	AppEnable, _ := strconv.ParseBool(AppEnableStr)
+	if AppEnable {
+		router.ServeFiles("/app/*filepath", http.Dir("storage/app"))
+	}
+
+	// check if app engine is enable
+	CDNEnableStr := os.Getenv("CDN_ENABLE")
+	if "" == CDNEnableStr {
+		CDNEnableStr = "false"
+	}
+	CDNEnable, _ := strconv.ParseBool(CDNEnableStr)
+	if CDNEnable {
+		router.ServeFiles("/cdn/*filepath", http.Dir("storage/cdn"))
+	}
+
 	useHttpsStr := os.Getenv("App_USE_HTTPS")
 	if useHttpsStr == "" {
 		useHttpsStr = "false"
 	}
 	useHttps, _ := strconv.ParseBool(useHttpsStr)
 
-	if runMode == "dev" {
+	if "dev" == runMode {
 		fmt.Printf("Welcome to Goffee\n")
 		if useHttps {
 			fmt.Printf("Listening on https \nWaiting for requests...\n")
@@ -156,6 +194,9 @@ func (app *App) Run(router *httprouter.Router) {
 	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", portNumber), router))
 }
 
+// RegisterRoutes sets up and registers HTTP routes and their handlers to the provided router, enabling request processing.
+// It assigns appropriate methods, controllers, and hooks, while handling core services, errors, and fallback behaviors.
+// Returns the configured router instance.
 func (app *App) RegisterRoutes(routes []Route, router *httprouter.Router) *httprouter.Router {
 	router.PanicHandler = panicHandler
 	router.NotFound = notFoundHandler{}
@@ -194,12 +235,28 @@ func (app *App) RegisterRoutes(routes []Route, router *httprouter.Router) *httpr
 	return router
 }
 
+// makeHTTPRouterHandlerFunc creates an httprouter.Handle that handles HTTP requests with the specified controller and hooks.
 func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
-
+		// Create request-specific chain state
+		reqCtx := &requestContext{
+			chainIndex: 0,
+		}
+		
+		// Prepare the chain nodes for this request
+		mw := app.hooks.GetHooks()
+		for _, v := range mw {
+			reqCtx.chainNodes = append(reqCtx.chainNodes, v)
+		}
+		rhs := app.combHandlers(h, ms)
+		for _, v := range rhs {
+			reqCtx.chainNodes = append(reqCtx.chainNodes, v)
+		}
+		
+		// Store chain state in request context
 		ctx := &Context{
 			Request: &Request{
-				httpRequest:    r,
+				httpRequest:    r.WithContext(context.WithValue(r.Context(), "goffeeChain", reqCtx)),
 				httpPathParams: ps,
 			},
 			Response: &Response{
@@ -222,15 +279,20 @@ func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Ha
 		}
 
 		ctx.prepare(ctx)
-		rhs := app.combHandlers(h, ms)
-		app.prepareChain(rhs)
-		app.t = 0
-		app.chain.execute(ctx)
+		
+		// Execute the first handler in the chain
+		if len(reqCtx.chainNodes) > 0 {
+			n := reqCtx.chainNodes[0]
+			if f, ok := n.(Hook); ok {
+				f(ctx)
+			} else if ff, ok := n.(Controller); ok {
+				ff(ctx)
+			}
+		}
 
 		for _, header := range ctx.Response.headers {
 			w.Header().Add(header.key, header.val)
 		}
-		logger.CloseLogsFile()
 		var ct string
 		if ctx.Response.overrideContentType != "" {
 			ct = ctx.Response.overrideContentType
@@ -245,7 +307,7 @@ func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Ha
 			w.WriteHeader(ctx.Response.statusCode)
 		}
 		if ctx.Response.redirectTo != "" {
-			http.Redirect(w, r, ctx.Response.redirectTo, http.StatusPermanentRedirect)
+			http.Redirect(w, r, ctx.Response.redirectTo, http.StatusTemporaryRedirect)
 		} else {
 			w.Write(ctx.Response.body)
 		}
@@ -260,27 +322,33 @@ func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Ha
 	}
 }
 
+// notFoundHandler is a type that implements the http.Handler interface to handle HTTP 404 Not Found errors.
 type notFoundHandler struct{}
+
+// methodNotAllowed is a type that implements http.Handler to handle HTTP 405 Method Not Allowed errors.
 type methodNotAllowed struct{}
 
+// ServeHTTP handles HTTP requests by responding with a 404 status code and a JSON-formatted "Not Found" message.
 func (n notFoundHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusNotFound)
 	res := "{\"message\": \"Not Found\"}"
 	loggr.Error("Not Found")
-	loggr.Error(debug.Stack())
+	//loggr.Error(debug.Stack())
 	w.Header().Add(CONTENT_TYPE, CONTENT_TYPE_JSON)
 	w.Write([]byte(res))
 }
 
+// ServeHTTP handles HTTP requests with method not allowed status and logs the occurrence and stack trace.
 func (n methodNotAllowed) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusMethodNotAllowed)
 	res := "{\"message\": \"Method not allowed\"}"
 	loggr.Error("Method not allowed")
-	loggr.Error(debug.Stack())
+	//loggr.Error(debug.Stack())
 	w.Header().Add(CONTENT_TYPE, CONTENT_TYPE_JSON)
 	w.Write([]byte(res))
 }
 
+// panicHandler handles panics during HTTP request processing, logs errors, and formats responses based on environment settings.
 var panicHandler = func(w http.ResponseWriter, r *http.Request, e interface{}) {
 	isDebugModeStr := os.Getenv("APP_DEBUG_MODE")
 	isDebugMode, err := strconv.ParseBool(isDebugModeStr)
@@ -303,7 +371,7 @@ var panicHandler = func(w http.ResponseWriter, r *http.Request, e interface{}) {
 	shrtMsg := fmt.Sprintf("%v", e)
 	loggr.Error(shrtMsg)
 	fmt.Println(shrtMsg)
-	loggr.Error(string(debug.Stack()))
+	//loggr.Error(string(debug.Stack()))
 	var res string
 	if env.GetVarOtherwiseDefault("APP_ENV", "local") == PRODUCTION {
 		res = "{\"message\": \"internal error\"}"
@@ -315,34 +383,53 @@ var panicHandler = func(w http.ResponseWriter, r *http.Request, e interface{}) {
 	w.Write([]byte(res))
 }
 
+// UseHook registers a Hook middleware function by attaching it to the global Hooks instance.
 func UseHook(mw Hook) {
 	ResolveHooks().Attach(mw)
 }
 
+// Next advances to the next middleware or controller in the chain and invokes it with the given context if available.
 func (app *App) Next(c *Context) {
-	app.t = app.t + 1
-	n := app.chain.getByIndex(app.t)
-	if n != nil {
-		f, ok := n.(Hook)
-		if ok {
-			f(c)
-		} else {
-			ff, ok := n.(Controller)
-			if ok {
+	// Get request-specific chain state from context
+	if reqCtx, ok := c.Request.httpRequest.Context().Value("goffeeChain").(*requestContext); ok {
+		reqCtx.chainIndex++
+		if reqCtx.chainIndex < len(reqCtx.chainNodes) {
+			n := reqCtx.chainNodes[reqCtx.chainIndex]
+			if f, ok := n.(Hook); ok {
+				f(c)
+			} else if ff, ok := n.(Controller); ok {
 				ff(c)
 			}
 		}
+	} else {
+		// Fallback to old behavior (not thread-safe)
+		app.t = app.t + 1
+		n := app.chain.getByIndex(app.t)
+		if n != nil {
+			f, ok := n.(Hook)
+			if ok {
+				f(c)
+			} else {
+				ff, ok := n.(Controller)
+				if ok {
+					ff(c)
+				}
+			}
+		}
 	}
 }
 
+// chain represents a sequence of nodes, where each node is an interface, used for executing a series of operations.
 type chain struct {
 	nodes []interface{}
 }
 
+// reset clears all nodes in the chain, resetting it to an empty state.
 func (cn *chain) reset() {
 	cn.nodes = []interface{}{}
 }
 
+// getByIndex retrieves an element from the chain's nodes slice by its index. Returns nil if the index is out of range.
 func (c *chain) getByIndex(i int) interface{} {
 	for k := range c.nodes {
 		if k == i {
@@ -353,6 +440,7 @@ func (c *chain) getByIndex(i int) interface{} {
 	return nil
 }
 
+// prepareChain appends all hooks from the provided list and the application's Hooks to the chain's nodes.
 func (app *App) prepareChain(hs []interface{}) {
 	mw := app.hooks.GetHooks()
 	for _, v := range mw {
@@ -363,6 +451,18 @@ func (app *App) prepareChain(hs []interface{}) {
 	}
 }
 
+// prepareRequestChain prepares a request-specific chain to avoid race conditions
+func (app *App) prepareRequestChain(requestChain *chain, hs []interface{}) {
+	mw := app.hooks.GetHooks()
+	for _, v := range mw {
+		requestChain.nodes = append(requestChain.nodes, v)
+	}
+	for _, v := range hs {
+		requestChain.nodes = append(requestChain.nodes, v)
+	}
+}
+
+// execute executes the first node in the chain, invoking it as either a Hook or Controller if applicable.
 func (cn *chain) execute(ctx *Context) {
 	i := cn.getByIndex(0)
 	if i != nil {
@@ -378,6 +478,7 @@ func (cn *chain) execute(ctx *Context) {
 	}
 }
 
+// combHandlers combines a controller and a slice of hooks into a single slice of interfaces in reversed order.
 func (app *App) combHandlers(h Controller, mw []Hook) []interface{} {
 	var rev []interface{}
 	for _, k := range mw {
@@ -387,6 +488,8 @@ func (app *App) combHandlers(h Controller, mw []Hook) []interface{} {
 	return rev
 }
 
+// getGormFunc returns a function that provides a *gorm.DB instance, ensuring gorm is enabled in the configuration.
+// If gorm is not enabled, it panics with an appropriate message.
 func getGormFunc() func() *gorm.DB {
 	f := func() *gorm.DB {
 		if !gormC.EnableGorm {
@@ -397,6 +500,9 @@ func getGormFunc() func() *gorm.DB {
 	return f
 }
 
+// NewGorm initializes and returns a new gorm.DB instance based on the selected database driver specified in environment variables.
+// Supported drivers include MySQL, PostgreSQL, and SQLite.
+// Panics if the database driver is not specified or if a connection error occurs.
 func NewGorm() *gorm.DB {
 	var err error
 	switch os.Getenv("DB_DRIVER") {
@@ -421,6 +527,7 @@ func NewGorm() *gorm.DB {
 	return db
 }
 
+// ResolveGorm initializes and returns a singleton instance of *gorm.DB, creating it if it doesn't already exist.
 func ResolveGorm() *gorm.DB {
 	if db != nil {
 		return db
@@ -429,6 +536,8 @@ func ResolveGorm() *gorm.DB {
 	return db
 }
 
+// resolveCache returns a function that provides a *Cache instance when invoked.
+// Panics if caching is not enabled in the configuration.
 func resolveCache() func() *Cache {
 	f := func() *Cache {
 		if !cacheC.EnableCache {
@@ -439,6 +548,8 @@ func resolveCache() func() *Cache {
 	return f
 }
 
+// postgresConnect establishes a connection to a PostgreSQL database using environment variables for configuration.
+// It returns a pointer to a gorm.DB instance or an error if the connection fails.
 func postgresConnect() (*gorm.DB, error) {
 	dsn := fmt.Sprintf("host=%v user=%v password=%v dbname=%v port=%v sslmode=%v TimeZone=%v",
 		os.Getenv("POSTGRES_HOST"),
@@ -452,6 +563,8 @@ func postgresConnect() (*gorm.DB, error) {
 	return gorm.Open(postgres.Open(dsn), &gorm.Config{})
 }
 
+// mysqlConnect establishes a connection to a MySQL database using credentials and configurations from environment variables.
+// Returns a *gorm.DB instance on success or an error if the connection fails.
 func mysqlConnect() (*gorm.DB, error) {
 	dsn := fmt.Sprintf("%v:%v@tcp(%v:%v)/%v?charset=%v&parseTime=True&loc=Local",
 		os.Getenv("MYSQL_USERNAME"),
@@ -471,6 +584,9 @@ func mysqlConnect() (*gorm.DB, error) {
 	}), &gorm.Config{})
 }
 
+// getJWT returns a function that initializes and provides a *JWT instance configured with environment variables.
+// The JWT instance is created using a secret signing key and a lifespan derived from the environment.
+// Panics if the signing key is not set or if the lifespan cannot be parsed.
 func getJWT() func() *JWT {
 	f := func() *JWT {
 		secret := os.Getenv("JWT_SECRET")
@@ -494,6 +610,7 @@ func getJWT() func() *JWT {
 	return f
 }
 
+// getValidator returns a closure that instantiates and provides a new instance of Validator.
 func getValidator() func() *Validator {
 	f := func() *Validator {
 		return &Validator{}
@@ -501,6 +618,7 @@ func getValidator() func() *Validator {
 	return f
 }
 
+// resloveHashing returns a function that initializes and provides a pointer to a new instance of the Hashing struct.
 func resloveHashing() func() *Hashing {
 	f := func() *Hashing {
 		return &Hashing{}
@@ -508,6 +626,7 @@ func resloveHashing() func() *Hashing {
 	return f
 }
 
+// resolveMailer initializes and returns a function that provides a singleton Mailer instance based on the configured driver.
 func resolveMailer() func() *Mailer {
 	f := func() *Mailer {
 		if mailer != nil {
@@ -536,6 +655,7 @@ func resolveMailer() func() *Mailer {
 	return f
 }
 
+// resolveEventsManager creates and returns a function that resolves the singleton instance of EventsManager.
 func resolveEventsManager() func() *EventsManager {
 	f := func() *EventsManager {
 		return ResolveEventsManager()
@@ -543,6 +663,7 @@ func resolveEventsManager() func() *EventsManager {
 	return f
 }
 
+// resolveLogger returns a function that provides access to the initialized logger instance when invoked.
 func resolveLogger() func() *logger.Logger {
 	f := func() *logger.Logger {
 		return loggr
@@ -550,6 +671,7 @@ func resolveLogger() func() *logger.Logger {
 	return f
 }
 
+// MakeDirs creates the specified directories under the base path with the provided permissions (0766).
 func (app *App) MakeDirs(dirs ...string) {
 	o := syscall.Umask(0)
 	defer syscall.Umask(o)
@@ -558,30 +680,37 @@ func (app *App) MakeDirs(dirs ...string) {
 	}
 }
 
+// SetRequestConfig sets the configuration for the request in the application instance.
 func (app *App) SetRequestConfig(r RequestConfig) {
 	requestC = r
 }
 
+// SetGormConfig sets the GormConfig for the application, overriding the current configuration with the provided value.
 func (app *App) SetGormConfig(g GormConfig) {
 	gormC = g
 }
 
+// SetCacheConfig sets the cache configuration for the application using the provided CacheConfig parameter.
 func (app *App) SetCacheConfig(c CacheConfig) {
 	cacheC = c
 }
 
+// SetBasePath sets the base path for the application, which is used as a prefix for file and directory operations.
 func (app *App) SetBasePath(path string) {
 	basePath = path
 }
 
+// SetRunMode sets the application run mode to the specified value.
 func (app *App) SetRunMode(runmode string) {
 	runMode = runmode
 }
 
+// DisableEvents sets the global variable `disableEvents` to true, disabling the handling or triggering of events.
 func DisableEvents() {
 	disableEvents = true
 }
 
+// EnableEvents sets the global variable `disableEvents` to false, effectively enabling event handling.
 func EnableEvents() {
 	disableEvents = false
 }

go.mod

@@ -4,49 +4,61 @@ replace git.smarteching.com/goffee/core/logger => ./logger
 
 replace git.smarteching.com/goffee/core/env => ./env
 
-go 1.23.1
+go 1.25.0
 
 require (
 	git.smarteching.com/zeni/go-chart/v2 v2.1.4
+	git.smarteching.com/zeni/go-charts/v2 v2.6.11
 	github.com/brianvoe/gofakeit/v6 v6.21.0
-	github.com/golang-jwt/jwt/v5 v5.0.0
-	github.com/google/uuid v1.3.0
+	github.com/golang-jwt/jwt/v5 v5.3.1
+	github.com/google/uuid v1.6.0
 	github.com/harranali/mailing v1.2.0
+	github.com/hibiken/asynq v0.26.0
 	github.com/joho/godotenv v1.5.1
 	github.com/julienschmidt/httprouter v1.3.0
-	github.com/redis/go-redis/v9 v9.0.5
-	golang.org/x/crypto v0.11.0
-	gorm.io/driver/mysql v1.5.1
-	gorm.io/driver/postgres v1.5.2
-	gorm.io/driver/sqlite v1.5.2
-	gorm.io/gorm v1.25.2
+	github.com/redis/go-redis/v9 v9.19.0
+	golang.org/x/crypto v0.50.0
+	gorm.io/driver/mysql v1.6.0
+	gorm.io/driver/postgres v1.6.0
+	gorm.io/driver/sqlite v1.6.0
+	gorm.io/gorm v1.31.1
 )
 
 require (
+	filippo.io/edwards25519 v1.2.0 // indirect
 	github.com/SparkPost/gosparkpost v0.2.0 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
-	github.com/go-chi/chi/v5 v5.0.8 // indirect
-	github.com/go-sql-driver/mysql v1.7.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-chi/chi/v5 v5.2.5 // indirect
+	github.com/go-sql-driver/mysql v1.10.0 // indirect
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
-	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
-	github.com/jackc/pgx/v5 v5.3.1 // indirect
-	github.com/json-iterator/go v1.1.10 // indirect
-	github.com/mailgun/mailgun-go/v4 v4.10.0 // indirect
-	github.com/mattn/go-sqlite3 v1.14.17 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
-	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/pgx/v5 v5.9.2 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailgun/errors v0.5.0 // indirect
+	github.com/mailgun/mailgun-go/v4 v4.23.0 // indirect
+	github.com/mattn/go-sqlite3 v1.14.44 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
 	github.com/sendgrid/rest v2.6.9+incompatible // indirect
-	github.com/sendgrid/sendgrid-go v3.12.0+incompatible // indirect
-	golang.org/x/image v0.21.0 // indirect
-	golang.org/x/net v0.10.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
+	github.com/sendgrid/sendgrid-go v3.16.1+incompatible // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
+	golang.org/x/image v0.39.0 // indirect
+	golang.org/x/net v0.53.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/text v0.36.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
 )
 
 require (
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/go-ozzo/ozzo-validation v3.6.0+incompatible
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect

go.sum

@@ -1,53 +1,59 @@
+filippo.io/edwards25519 v1.2.0 h1:crnVqOiS4jqYleHd9vaKZ+HKtHfllngJIiOpNpoJsjo=
+filippo.io/edwards25519 v1.2.0/go.mod h1:xzAOLCNug/yB62zG1bQ8uziwrIqIuxhctzJT18Q77mc=
 git.smarteching.com/zeni/go-chart/v2 v2.1.4 h1:pF06+F6eqJLIG8uMiTVPR5TygPGMjM/FHMzTxmu5V/Q=
 git.smarteching.com/zeni/go-chart/v2 v2.1.4/go.mod h1:b3ueW9h3pGGXyhkormZAvilHaG4+mQti+bMNPdQBeOQ=
+git.smarteching.com/zeni/go-charts/v2 v2.6.11 h1:9udzlv3uxGXszpplfkL5IaTUrgkNj++KwhbaN1vVEqI=
+git.smarteching.com/zeni/go-charts/v2 v2.6.11/go.mod h1:3OpRPSXg7Qx4zcgsmwsC9ZFB9/wAkGSbnXf1wIbHYCg=
 github.com/SparkPost/gosparkpost v0.2.0 h1:yzhHQT7cE+rqzd5tANNC74j+2x3lrPznqPJrxC1yR8s=
 github.com/SparkPost/gosparkpost v0.2.0/go.mod h1:S9WKcGeou7cbPpx0kTIgo8Q69WZvUmVeVzbD+djalJ4=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
 github.com/brianvoe/gofakeit/v6 v6.21.0 h1:tNkm9yxEbpuPK8Bx39tT4sSc5i9SUGiciLdNix+VDQY=
 github.com/brianvoe/gofakeit/v6 v6.21.0/go.mod h1:Ow6qC71xtwm79anlwKRlWZW6zVq9D2XHE4QSSMP/rU8=
-github.com/bsm/ginkgo/v2 v2.7.0 h1:ItPMPH90RbmZJt5GtkcNvIRuGEdwlBItdNVoyzaNQao=
-github.com/bsm/ginkgo/v2 v2.7.0/go.mod h1:AiKlXPm7ItEHNc/2+OkrNG4E0ITzojb9/xWzvQ9XZ9w=
-github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y=
-github.com/bsm/gomega v1.26.0/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
+github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
+github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/buger/jsonparser v1.0.0/go.mod h1:tgcrVJ81GPSF0mz+0nu1Xaz0fazGPrmmJfJtxjbHhUQ=
 github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a/go.mod h1:2GxOXOlEPAMFPfp014mK1SWq8G8BN8o7/dfYqJrVGn8=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
-github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
-github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 h1:0JZ+dUmQeA8IIVUMzysrX4/AKuQwWhV2dYQuPZdvdSQ=
-github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
-github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 h1:JWuenKqqX8nojtoVVWjGfOF9635RETekkoH6Cc9SX0A=
-github.com/facebookgo/stack v0.0.0-20160209184415-751773369052/go.mod h1:UbMTZqLaRiH3MsBH8va0n7s1pQYcu3uTb8G4tygF4Zg=
-github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 h1:E2s37DuLxFhQDg5gKsWoLBOB0n+ZW8s599zru8FJ2/Y=
-github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0=
-github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0=
-github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
+github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
 github.com/go-ozzo/ozzo-validation v3.6.0+incompatible h1:msy24VGS42fKO9K1vLz82/GeYW1cILu7Nuuj1N3BBkE=
 github.com/go-ozzo/ozzo-validation v3.6.0+incompatible/go.mod h1:gsEKFIVnabGBt6mXmxK0MoFy+cZoTJY6mu5Ll3LVLBU=
-github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc=
-github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/go-sql-driver/mysql v1.10.0 h1:Q+1LV8DkHJvSYAdR83XzuhDaTykuDx0l6fkXxoWCWfw=
+github.com/go-sql-driver/mysql v1.10.0/go.mod h1:M+cqaI7+xxXGG9swrdeUIoPG3Y3KCkF0pZej+SK+nWk=
 github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561/go.mod h1:Pcatq5tYkCW2Q6yrR2VRHlbHpZ/R4/7qyL1TCF7vl14=
-github.com/golang-jwt/jwt/v5 v5.0.0 h1:1n1XNM9hk7O9mnQoNBGolZvzebBQ7p93ULHRc28XJUE=
-github.com/golang-jwt/jwt/v5 v5.0.0/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
+github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
+github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
-github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/harranali/mailing v1.2.0 h1:ihIyJwB8hyRVcdk+v465wk1PHMrSrgJqo/kMd+gZClY=
 github.com/harranali/mailing v1.2.0/go.mod h1:4a5N3yG98pZKluMpmcYlTtll7bisvOfGQEMIng3VQk4=
+github.com/hibiken/asynq v0.26.0 h1:1Zxr92MlDnb1Zt/QR5g2vSCqUS03i95lUfqx5X7/wrw=
+github.com/hibiken/asynq v0.26.0/go.mod h1:Qk4e57bTnWDoyJ67VkchuV6VzSM9IQW2nPvAGuDyw58=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
-github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a h1:bbPeKD0xmW/Y25WS6cokEszi5g+S0QxI/d45PkRi7Nk=
-github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.3.1 h1:Fcr8QJ1ZeLi5zsPZqQeUZhNhxfkkKBOgJuYkJHoBOtU=
-github.com/jackc/pgx/v5 v5.3.1/go.mod h1:t3JDKnCBlYIc0ewLF0Q7B8MXmoIaBOZj/ic7iHozM/8=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw=
+github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
+github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
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@@ -56,64 +62,94 @@ github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
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graph.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	"git.smarteching.com/zeni/go-chart/v2"
+	"git.smarteching.com/zeni/go-charts/v2"
 	"github.com/julienschmidt/httprouter"
 )
 
@@ -44,7 +45,7 @@ func Graph(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
 					qtyl := len(labels)
 					qtyv := len(values)
 
-					// cjeck qty and equal values from url
+					// check qty and equal values from url
 					if qtyl < 2 {
 						fmt.Fprintf(w, "Missing captions in pie")
 						return
@@ -85,9 +86,9 @@ func Graph(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
 					qtyl := len(labels)
 					qtyv := len(values)
 
-					// cjeck qty and equal values from url
+					// check qty and equal values from url
 					if qtyl < 2 {
-						fmt.Fprintf(w, "Missing captions in pie")
+						fmt.Fprintf(w, "Missing captions in bar")
 						return
 					}
 					if qtyv != qtyl {
@@ -116,6 +117,83 @@ func Graph(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
 						fmt.Printf("Error rendering pie chart: %v\n", err)
 					}
 
+				// case multiple graph bar
+				case "mbar":
+
+					queryValues := r.URL.Query()
+					labels := strings.Split(queryValues.Get("l"), "|")
+					values := strings.Split(queryValues.Get("v"), "|")
+					options := strings.Split(queryValues.Get("o"), "|")
+
+					qtyl := len(labels)
+					qtyv := len(values)
+					qtyo := len(options)
+
+					// check qty and equal values from url
+					if qtyl < 2 {
+						fmt.Fprintf(w, "Missing captions in bar")
+						return
+					}
+					if qtyv < 2 {
+						fmt.Fprintf(w, "Missing values in bar")
+						return
+					}
+					if qtyo < 2 {
+						fmt.Fprintf(w, "Missing options in bar")
+						return
+					}
+
+					valuest := [][]float64{
+						{
+							2.0,
+							4.9,
+							7.0,
+							23.2,
+							25.6,
+							76.7,
+							135.6,
+							162.2,
+							32.6,
+						},
+						{
+							2.6,
+							5.9,
+							9.0,
+							26.4,
+							28.7,
+							70.7,
+							175.6,
+							182.2,
+							48.7,
+						},
+					}
+					p, err := charts.BarRender(
+						valuest,
+						charts.XAxisDataOptionFunc([]string{
+							"Apr",
+							"May",
+							"Jun",
+							"Jul",
+							"Aug",
+							"Sep",
+							"Oct",
+							"Nov",
+							"Dec",
+						}),
+						charts.LegendLabelsOptionFunc(labels, charts.PositionRight),
+					)
+					if err != nil {
+						panic(err)
+					}
+
+					buf, err := p.Bytes()
+
+					w.Header().Set("Content-Type", "image/png")
+					w.Write(buf)
+					if err != nil {
+						fmt.Printf("Error rendering pie chart: %v\n", err)
+					}
+
 				default:
 					fmt.Fprintf(w, "Unknown graph %s!\n", kindg)
 				}

logger/logger.go

@@ -1,4 +1,4 @@
-// Copyright 2021 Harran Ali <harran.m@gmail.com>. All rights reserved.
+// Copyright (c) 2026 Zeni Kim <zenik@smarteching.com>
 // Use of this source code is governed by MIT-style
 // license that can be found in the LICENSE file.
 
@@ -8,16 +8,68 @@ import (
 	"io"
 	"log"
 	"os"
+	"strings"
 )
 
 // logs file
 var logsFile *os.File
 
+// ANSI color codes for terminal output
+const (
+	colorReset  = "\033[0m"
+	colorRed    = "\033[31m"
+	colorYellow = "\033[33m"
+	colorBlue   = "\033[34m"
+	colorCyan   = "\033[36m"
+)
+
+// Level represents a log severity level.
+type Level int
+
+const (
+	DEBUG Level = iota
+	INFO
+	WARNING
+	ERROR
+)
+
+// String returns the string representation of a log level.
+func (l Level) String() string {
+	switch l {
+	case DEBUG:
+		return "debug"
+	case INFO:
+		return "info"
+	case WARNING:
+		return "warning"
+	case ERROR:
+		return "error"
+	default:
+		return "unknown"
+	}
+}
+
+// coloredWriter wraps an io.Writer and replaces plain log prefixes with ANSI-colored ones
+// in the output stream. The original bytes pass through unmodified to any additional writers.
+type coloredWriter struct {
+	writer  io.Writer
+	plain   string
+	colored string
+}
+
+func (w *coloredWriter) Write(p []byte) (n int, err error) {
+	// Replace the plain prefix with the colored version in the output
+	colored := strings.Replace(string(p), w.plain, w.colored, 1)
+	return w.writer.Write([]byte(colored))
+}
+
 type Logger struct {
+	minLevel      Level
 	infoLogger    *log.Logger
 	warningLogger *log.Logger
 	errorLogger   *log.Logger
 	debugLogger   *log.Logger
+	file          *os.File
 }
 
 var l *Logger
@@ -40,9 +92,36 @@ func (f LogFileDriver) GetTarget() interface{} {
 	return f.FilePath
 }
 
+// levelPrefixes returns the plain and colored (with ANSI escapes) prefix strings for a given level.
+func levelPrefixes(level Level) (plain, colored string) {
+	switch level {
+	case INFO:
+		return "info: ", colorBlue + "INFO" + colorReset + ": "
+	case DEBUG:
+		return "debug: ", colorCyan + "DEBUG" + colorReset + ": "
+	case WARNING:
+		return "warning: ", colorYellow + "WARNING" + colorReset + ": "
+	case ERROR:
+		return "error: ", colorRed + "ERROR" + colorReset + ": "
+	default:
+		return "info: ", "INFO: "
+	}
+}
+
+// NewLogger creates a new Logger with the given driver and a minimum level of DEBUG (all levels logged).
 func NewLogger(driver LogsDriver) *Logger {
+	stdoutEnabled := os.Getenv("LOG_STDOUT_ENABLE") == "true"
+	return NewLoggerWithStdout(driver, DEBUG, stdoutEnabled)
+}
+
+// NewLoggerWithStdout creates a new Logger with the given driver, minimum log level,
+// and optionally writes to stdout in addition to the target file.
+// When stdoutEnabled is true, log messages are written to both the target and stdout.
+// ANSI color codes are applied to log prefixes in terminal output only.
+func NewLoggerWithStdout(driver LogsDriver, minLevel Level, stdoutEnabled bool) *Logger {
 	if driver.GetTarget() == nil {
 		l = &Logger{
+			minLevel:      minLevel,
 			infoLogger:    log.New(io.Discard, "info: ", log.LstdFlags),
 			warningLogger: log.New(io.Discard, "warning: ", log.LstdFlags),
 			errorLogger:   log.New(io.Discard, "error: ", log.LstdFlags),
@@ -54,41 +133,103 @@ func NewLogger(driver LogsDriver) *Logger {
 	if !ok {
 		panic("something wrong with the file path")
 	}
-	logsFile, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_RDWR, 0644)
+	var err error
+	logsFile, err = os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_RDWR, 0644)
 	if err != nil {
 		panic(err)
 	}
-	l = &Logger{
-		infoLogger:    log.New(logsFile, "info: ", log.LstdFlags),
-		warningLogger: log.New(logsFile, "warning: ", log.LstdFlags),
-		errorLogger:   log.New(logsFile, "error: ", log.LstdFlags),
-		debugLogger:   log.New(logsFile, "debug: ", log.LstdFlags),
+
+	if stdoutEnabled {
+		// Build each logger with a MultiWriter: the file gets the original plain output,
+		// stdout gets the output with ANSI-colored prefixes.
+		infoPlain, infoColored := levelPrefixes(INFO)
+		debugPlain, debugColored := levelPrefixes(DEBUG)
+		warnPlain, warnColored := levelPrefixes(WARNING)
+		errPlain, errColored := levelPrefixes(ERROR)
+
+		l = &Logger{
+			minLevel: minLevel,
+			infoLogger: log.New(
+				io.MultiWriter(logsFile, &coloredWriter{writer: os.Stdout, plain: infoPlain, colored: infoColored}),
+				infoPlain, log.LstdFlags,
+			),
+			warningLogger: log.New(
+				io.MultiWriter(logsFile, &coloredWriter{writer: os.Stdout, plain: warnPlain, colored: warnColored}),
+				warnPlain, log.LstdFlags,
+			),
+			errorLogger: log.New(
+				io.MultiWriter(logsFile, &coloredWriter{writer: os.Stdout, plain: errPlain, colored: errColored}),
+				errPlain, log.LstdFlags,
+			),
+			debugLogger: log.New(
+				io.MultiWriter(logsFile, &coloredWriter{writer: os.Stdout, plain: debugPlain, colored: debugColored}),
+				debugPlain, log.LstdFlags,
+			),
+			file: logsFile,
+		}
+	} else {
+		// No stdout: all output goes to file with plain prefixes
+		l = &Logger{
+			minLevel:      minLevel,
+			infoLogger:    log.New(logsFile, "info: ", log.LstdFlags),
+			warningLogger: log.New(logsFile, "warning: ", log.LstdFlags),
+			errorLogger:   log.New(logsFile, "error: ", log.LstdFlags),
+			debugLogger:   log.New(logsFile, "debug: ", log.LstdFlags),
+			file:          logsFile,
+		}
 	}
 	return l
 }
 
+// NewLoggerWithLevel creates a new Logger with the given driver and minimum log level.
+// Messages below the minimum level will be discarded. Stdout output is disabled by default.
+func NewLoggerWithLevel(driver LogsDriver, minLevel Level) *Logger {
+	stdoutEnabled := os.Getenv("LOG_STDOUT_ENABLE") == "true"
+	return NewLoggerWithStdout(driver, minLevel, stdoutEnabled)
+}
+
+// SetLevel sets the minimum log level for the logger.
+// Messages below this level will be discarded.
+func (l *Logger) SetLevel(level Level) {
+	l.minLevel = level
+}
+
+// GetLevel returns the current minimum log level.
+func (l *Logger) GetLevel() Level {
+	return l.minLevel
+}
+
 func ResolveLogger() *Logger {
 	return l
 }
 
 func (l *Logger) Info(msg interface{}) {
-	l.infoLogger.Println(msg)
+	if l.minLevel <= INFO {
+		l.infoLogger.Println(msg)
+	}
 }
 
 func (l *Logger) Debug(msg interface{}) {
-	l.debugLogger.Println(msg)
+	if l.minLevel <= DEBUG {
+		l.debugLogger.Println(msg)
+	}
 }
 
 func (l *Logger) Warning(msg interface{}) {
-	l.warningLogger.Println(msg)
+	if l.minLevel <= WARNING {
+		l.warningLogger.Println(msg)
+	}
 }
 
 func (l *Logger) Error(msg interface{}) {
-	l.errorLogger.Println(msg)
-}
-
-func CloseLogsFile() {
-	if logsFile != nil {
-		defer logsFile.Close()
+	if l.minLevel <= ERROR {
+		l.errorLogger.Println(msg)
 	}
 }
+
+func (l *Logger) Close() error {
+	if l.file != nil {
+		return l.file.Close()
+	}
+	return nil
+}

logger/logger_test.go

@@ -61,7 +61,7 @@ func TestInfo(t *testing.T) {
 		t.Error("error testing info")
 	}
 	t.Cleanup(func() {
-		CloseLogsFile()
+		l.Close()
 	})
 }
 
@@ -84,7 +84,7 @@ func TestWarning(t *testing.T) {
 		t.Error("failed testing warning")
 	}
 	t.Cleanup(func() {
-		CloseLogsFile()
+		l.Close()
 	})
 }
 
@@ -106,7 +106,7 @@ func TestDebug(t *testing.T) {
 		t.Error("error testing debug")
 	}
 	t.Cleanup(func() {
-		CloseLogsFile()
+		l.Close()
 	})
 }
 
@@ -128,6 +128,173 @@ func TestError(t *testing.T) {
 		t.Error("failed testing error")
 	}
 	t.Cleanup(func() {
-		CloseLogsFile()
+		l.Close()
 	})
 }
+
+func TestLevelFiltering(t *testing.T) {
+	t.Run("NewLoggerWithLevel_DEBUG", func(t *testing.T) {
+		path := filepath.Join(t.TempDir(), uuid.NewString())
+		l := NewLoggerWithLevel(&LogFileDriver{FilePath: path}, DEBUG)
+		l.Debug("debug-msg")
+		l.Info("info-msg")
+		l.Warning("warn-msg")
+		l.Error("err-msg")
+		l.Close()
+
+		b, _ := os.ReadFile(path)
+		content := string(b)
+		if !strings.Contains(content, "debug-msg") {
+			t.Error("expected debug-msg to be logged at DEBUG level")
+		}
+		if !strings.Contains(content, "info-msg") {
+			t.Error("expected info-msg to be logged at DEBUG level")
+		}
+		if !strings.Contains(content, "warn-msg") {
+			t.Error("expected warn-msg to be logged at DEBUG level")
+		}
+		if !strings.Contains(content, "err-msg") {
+			t.Error("expected err-msg to be logged at DEBUG level")
+		}
+	})
+
+	t.Run("NewLoggerWithLevel_INFO", func(t *testing.T) {
+		path := filepath.Join(t.TempDir(), uuid.NewString())
+		l := NewLoggerWithLevel(&LogFileDriver{FilePath: path}, INFO)
+		l.Debug("debug-msg")
+		l.Info("info-msg")
+		l.Warning("warn-msg")
+		l.Error("err-msg")
+		l.Close()
+
+		b, _ := os.ReadFile(path)
+		content := string(b)
+		if strings.Contains(content, "debug-msg") {
+			t.Error("debug-msg should NOT be logged at INFO minimum level")
+		}
+		if !strings.Contains(content, "info-msg") {
+			t.Error("expected info-msg to be logged at INFO level")
+		}
+		if !strings.Contains(content, "warn-msg") {
+			t.Error("expected warn-msg to be logged at INFO level")
+		}
+		if !strings.Contains(content, "err-msg") {
+			t.Error("expected err-msg to be logged at INFO level")
+		}
+	})
+
+	t.Run("NewLoggerWithLevel_WARNING", func(t *testing.T) {
+		path := filepath.Join(t.TempDir(), uuid.NewString())
+		l := NewLoggerWithLevel(&LogFileDriver{FilePath: path}, WARNING)
+		l.Debug("debug-msg")
+		l.Info("info-msg")
+		l.Warning("warn-msg")
+		l.Error("err-msg")
+		l.Close()
+
+		b, _ := os.ReadFile(path)
+		content := string(b)
+		if strings.Contains(content, "debug-msg") {
+			t.Error("debug-msg should NOT be logged at WARNING minimum level")
+		}
+		if strings.Contains(content, "info-msg") {
+			t.Error("info-msg should NOT be logged at WARNING minimum level")
+		}
+		if !strings.Contains(content, "warn-msg") {
+			t.Error("expected warn-msg to be logged at WARNING level")
+		}
+		if !strings.Contains(content, "err-msg") {
+			t.Error("expected err-msg to be logged at WARNING level")
+		}
+	})
+
+	t.Run("NewLoggerWithLevel_ERROR", func(t *testing.T) {
+		path := filepath.Join(t.TempDir(), uuid.NewString())
+		l := NewLoggerWithLevel(&LogFileDriver{FilePath: path}, ERROR)
+		l.Debug("debug-msg")
+		l.Info("info-msg")
+		l.Warning("warn-msg")
+		l.Error("err-msg")
+		l.Close()
+
+		b, _ := os.ReadFile(path)
+		content := string(b)
+		if strings.Contains(content, "debug-msg") {
+			t.Error("debug-msg should NOT be logged at ERROR minimum level")
+		}
+		if strings.Contains(content, "info-msg") {
+			t.Error("info-msg should NOT be logged at ERROR minimum level")
+		}
+		if strings.Contains(content, "warn-msg") {
+			t.Error("warn-msg should NOT be logged at ERROR minimum level")
+		}
+		if !strings.Contains(content, "err-msg") {
+			t.Error("expected err-msg to be logged at ERROR level")
+		}
+	})
+
+	t.Run("SetLevel_dynamically", func(t *testing.T) {
+		path := filepath.Join(t.TempDir(), uuid.NewString())
+		l := NewLogger(&LogFileDriver{FilePath: path})
+
+		// Default is DEBUG, so debug messages are logged
+		l.Debug("debug-msg-before")
+		l.SetLevel(WARNING)
+		l.Debug("debug-msg-after")
+		l.Info("info-msg-after")
+		l.Warning("warn-msg-after")
+		l.Error("err-msg-after")
+		l.Close()
+
+		b, _ := os.ReadFile(path)
+		content := string(b)
+		if !strings.Contains(content, "debug-msg-before") {
+			t.Error("expected debug-msg-before to be logged before level change")
+		}
+		if strings.Contains(content, "debug-msg-after") {
+			t.Error("debug-msg-after should NOT be logged after setting level to WARNING")
+		}
+		if strings.Contains(content, "info-msg-after") {
+			t.Error("info-msg-after should NOT be logged after setting level to WARNING")
+		}
+		if !strings.Contains(content, "warn-msg-after") {
+			t.Error("expected warn-msg-after to be logged at WARNING level")
+		}
+		if !strings.Contains(content, "err-msg-after") {
+			t.Error("expected err-msg-after to be logged at WARNING level")
+		}
+	})
+}
+
+func TestLevelString(t *testing.T) {
+	tests := []struct {
+		level Level
+		want  string
+	}{
+		{DEBUG, "debug"},
+		{INFO, "info"},
+		{WARNING, "warning"},
+		{ERROR, "error"},
+		{Level(99), "unknown"},
+	}
+	for _, tt := range tests {
+		if got := tt.level.String(); got != tt.want {
+			t.Errorf("Level(%d).String() = %q, want %q", tt.level, got, tt.want)
+		}
+	}
+}
+
+func TestGetLevel(t *testing.T) {
+	path := filepath.Join(t.TempDir(), uuid.NewString())
+	l := NewLoggerWithLevel(&LogFileDriver{FilePath: path}, WARNING)
+	defer l.Close()
+
+	if l.GetLevel() != WARNING {
+		t.Errorf("GetLevel() = %d, want %d", l.GetLevel(), WARNING)
+	}
+
+	l.SetLevel(INFO)
+	if l.GetLevel() != INFO {
+		t.Errorf("GetLevel() after SetLevel(INFO) = %d, want %d", l.GetLevel(), INFO)
+	}
+}

queue.go

@@ -0,0 +1,52 @@
+// Copyright (c) 2025 Zeni Kim <zenik@smarteching.com>
+// Use of this source code is governed by MIT-style
+// license that can be found in the LICENSE file.
+
+package core
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/hibiken/asynq"
+)
+
+type Asynqtask func(context.Context, *asynq.Task) error
+
+type Queuemux struct {
+	themux *asynq.ServeMux
+}
+
+func (q *Queuemux) QueueInit() {
+	q.themux = asynq.NewServeMux()
+}
+
+func (q *Queuemux) AddWork(pattern string, work Asynqtask) {
+	q.themux.HandleFunc(pattern, work)
+}
+
+// RunQueueserver starts the queue server with predefined configurations and handles tasks using the assigned ServeMux.
+// Configures the queue server with concurrency limits and priority-based queue management.
+// Logs and terminates the program if the server fails to run.
+func (q *Queuemux) RunQueueserver() {
+
+	redisAddr := fmt.Sprintf("%v:%v", os.Getenv("REDIS_HOST"), os.Getenv("REDIS_PORT"))
+
+	srv := asynq.NewServer(
+		asynq.RedisClientOpt{Addr: redisAddr},
+		asynq.Config{Concurrency: 10,
+			// Optionally specify multiple queues with different priority.
+			Queues: map[string]int{
+				"critical": 6,
+				"default":  3,
+				"low":      1,
+			},
+		},
+	)
+
+	if err := srv.Run(q.themux); err != nil {
+		log.Fatal(err)
+	}
+}

response.go

@@ -11,6 +11,7 @@ import (
 	"net/http"
 )
 
+// Response represents an HTTP response to be sent to the client, including headers, body, status code, and metadata.
 type Response struct {
 	headers             []header
 	body                []byte
@@ -22,12 +23,34 @@ type Response struct {
 	HttpResponseWriter  http.ResponseWriter
 }
 
+// header represents a single HTTP header with a key-value pair.
 type header struct {
 	key string
 	val string
 }
 
-// TODO add doc
+// writes the contents of a buffer to the HTTP response with specified file name and type if not terminated.
+func (rs *Response) BufferFile(name string, filetype string, b bytes.Buffer) *Response {
+
+	if rs.isTerminated == false {
+		rs.HttpResponseWriter.Header().Add("Content-Type", filetype)
+		rs.HttpResponseWriter.Header().Add("Content-Disposition", "attachment; filename="+name)
+		b.WriteTo(rs.HttpResponseWriter)
+	}
+	return rs
+}
+
+// writes the contents of a buffer to the HTTP response with specified file name and type if not terminated.
+func (rs *Response) BufferInline(name string, filetype string, b bytes.Buffer) *Response {
+
+	if rs.isTerminated == false {
+		rs.HttpResponseWriter.Header().Add("Content-Type", filetype)
+		b.WriteTo(rs.HttpResponseWriter)
+	}
+	return rs
+}
+
+// sets the response's content type to HTML and assigns the provided body as the response body if not terminated.
 func (rs *Response) Any(body any) *Response {
 	if rs.isTerminated == false {
 		rs.contentType = CONTENT_TYPE_HTML
@@ -37,7 +60,7 @@ func (rs *Response) Any(body any) *Response {
 	return rs
 }
 
-// TODO add doc
+// sets the response's content type to JSON and assigns the provided string as the body if the response is not terminated.
 func (rs *Response) Json(body string) *Response {
 	if rs.isTerminated == false {
 		rs.contentType = CONTENT_TYPE_JSON
@@ -46,7 +69,7 @@ func (rs *Response) Json(body string) *Response {
 	return rs
 }
 
-// TODO add doc
+// sets the response's content type to plain text and assigns the provided string as the body if not terminated.
 func (rs *Response) Text(body string) *Response {
 	if rs.isTerminated == false {
 		rs.contentType = CONTENT_TYPE_TEXT
@@ -55,7 +78,7 @@ func (rs *Response) Text(body string) *Response {
 	return rs
 }
 
-// TODO add doc
+// sets the response's content type to HTML and assigns the provided string as the body if the response is not terminated.
 func (rs *Response) HTML(body string) *Response {
 	if rs.isTerminated == false {
 		rs.contentType = CONTENT_TYPE_HTML
@@ -64,7 +87,7 @@ func (rs *Response) HTML(body string) *Response {
 	return rs
 }
 
-// TODO add doc
+// renders the specified template with the provided data and writes the result to the HTTP response if not terminated.
 func (rs *Response) Template(name string, data interface{}) *Response {
 	var buffer bytes.Buffer
 	if rs.isTerminated == false {
@@ -78,7 +101,7 @@ func (rs *Response) Template(name string, data interface{}) *Response {
 	return rs
 }
 
-// TODO add doc
+// sets the response status code if the response is not yet terminated. Returns the updated Response object.
 func (rs *Response) SetStatusCode(code int) *Response {
 	if rs.isTerminated == false {
 		rs.statusCode = code
@@ -87,7 +110,7 @@ func (rs *Response) SetStatusCode(code int) *Response {
 	return rs
 }
 
-// TODO add doc
+// sets a custom content type for the response if it is not terminated. Returns the updated Response object.
 func (rs *Response) SetContentType(c string) *Response {
 	if rs.isTerminated == false {
 		rs.overrideContentType = c
@@ -96,7 +119,7 @@ func (rs *Response) SetContentType(c string) *Response {
 	return rs
 }
 
-// TODO add doc
+// adds or updates a header to the response if it is not terminated. Returns the updated Response object.
 func (rs *Response) SetHeader(key string, val string) *Response {
 	if rs.isTerminated == false {
 		h := header{
@@ -108,10 +131,12 @@ func (rs *Response) SetHeader(key string, val string) *Response {
 	return rs
 }
 
+// terminates the response processing, preventing any further modifications or actions.
 func (rs *Response) ForceSendResponse() {
 	rs.isTerminated = true
 }
 
+// updates the redirect URL for the response and returns the modified Response. Validates the URL before setting it.
 func (rs *Response) Redirect(url string) *Response {
 	validator := resolveValidator()
 	v := validator.Validate(map[string]interface{}{
@@ -131,6 +156,7 @@ func (rs *Response) Redirect(url string) *Response {
 	return rs
 }
 
+// converts various primitive data types to their string representation or triggers a panic for unsupported types.
 func (rs *Response) castBasicVarsToString(data interface{}) string {
 	switch dataType := data.(type) {
 	case string:
@@ -188,6 +214,7 @@ func (rs *Response) castBasicVarsToString(data interface{}) string {
 	}
 }
 
+// reinitializes the Response object to its default state, clearing its body, headers, and resetting other properties.
 func (rs *Response) reset() {
 	rs.body = nil
 	rs.statusCode = http.StatusOK

router.go

@@ -5,6 +5,7 @@
 
 package core
 
+// Route defines an HTTP route with a method, path, controller function, and optional hooks for customization.
 type Route struct {
 	Method     string
 	Path       string
@@ -12,12 +13,15 @@ type Route struct {
 	Hooks      []Hook
 }
 
+// Router represents a structure for storing and managing routes in the application.
 type Router struct {
 	Routes []Route
 }
 
+// router is a global instance of the Router struct used to manage and resolve application routes.
 var router *Router
 
+// NewRouter initializes and returns a new Router instance with an empty slice of routes.
 func NewRouter() *Router {
 	router = &Router{
 		[]Route{},
@@ -25,10 +29,12 @@ func NewRouter() *Router {
 	return router
 }
 
+// ResolveRouter returns the singleton instance of the Router. It initializes and manages HTTP routes configuration.
 func ResolveRouter() *Router {
 	return router
 }
 
+// Get registers a GET route with the specified path, controller, and optional hooks, returning the updated Router.
 func (r *Router) Get(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     GET,
@@ -39,6 +45,7 @@ func (r *Router) Get(path string, controller Controller, hooks ...Hook) *Router
 	return r
 }
 
+// Post registers a route with the HTTP POST method, associating it with the given path, controller, and optional hooks.
 func (r *Router) Post(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     POST,
@@ -49,6 +56,7 @@ func (r *Router) Post(path string, controller Controller, hooks ...Hook) *Router
 	return r
 }
 
+// Delete registers a DELETE HTTP method route with the specified path, controller, and optional hooks.
 func (r *Router) Delete(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     DELETE,
@@ -59,6 +67,7 @@ func (r *Router) Delete(path string, controller Controller, hooks ...Hook) *Rout
 	return r
 }
 
+// Patch registers a new route with the HTTP PATCH method, a specified path, a controller, and optional hooks.
 func (r *Router) Patch(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     PATCH,
@@ -69,6 +78,7 @@ func (r *Router) Patch(path string, controller Controller, hooks ...Hook) *Route
 	return r
 }
 
+// Put registers a new route with the HTTP PUT method, associating it to the given path, controller, and optional hooks.
 func (r *Router) Put(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     PUT,
@@ -79,6 +89,7 @@ func (r *Router) Put(path string, controller Controller, hooks ...Hook) *Router
 	return r
 }
 
+// Options registers a new route with the OPTIONS HTTP method, a specified path, controller, and optional hooks.
 func (r *Router) Options(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     OPTIONS,
@@ -89,6 +100,7 @@ func (r *Router) Options(path string, controller Controller, hooks ...Hook) *Rou
 	return r
 }
 
+// Head registers a route with the HTTP HEAD method, associates it with a path, controller, and optional hooks.
 func (r *Router) Head(path string, controller Controller, hooks ...Hook) *Router {
 	r.Routes = append(r.Routes, Route{
 		Method:     HEAD,
@@ -99,6 +111,7 @@ func (r *Router) Head(path string, controller Controller, hooks ...Hook) *Router
 	return r
 }
 
+// GetRoutes returns a slice of Route objects currently registered within the Router.
 func (r *Router) GetRoutes() []Route {
 	return r.Routes
 }

template/components/content_dropdown.go

@@ -1,6 +1,7 @@
 package components
 
 type ContentDropdown struct {
+	ID         string
 	Label      string
 	TypeClass  string // type primary, secondary, success, danger, warning, info, light, dark, link, outline-primary
 	IsDisabled bool

template/components/content_list.go

@@ -1,10 +1,12 @@
 package components
 
 type ContentList struct {
+	ID    string
 	Items []ContentListItem
 }
 
 type ContentListItem struct {
+	ID          string
 	Text        string
 	Description string
 	EndElement  string

template/components/content_list.html

@@ -1,8 +1,10 @@
 {{define "content_list"}}
-    <ul class="list-group">
+    <ul class="list-group" {{ if .ID }}id="{{.ID}}"{{end}}>
         {{ range .Items}}
-            <li class="list-group-item text-wrap {{if eq .IsDisabled true}}disabled{{end}} {{if .TypeClass}}list-group-item-{{.TypeClass}}{{end}}"
-             {{if eq .IsDisabled true}}aria-disabled="true"{{end}}            
+            <li class="list-group-item text-wrap {{if eq .IsDisabled true}}disabled{{end}} 
+                {{if .TypeClass}}list-group-item-{{.TypeClass}}{{end}}"
+                {{if eq .IsDisabled true}}aria-disabled="true"{{end}} 
+                {{ if .ID }}id="{{.ID}}"{{end}}           
             ><div class="d-flex justify-content-between lh-sm"><p class="mb-1">{{.Text}}</p><span class="text-body-secondary ms-5">{{.EndElement}}</span></div>
             <small>{{.Description}}</small>
         </li>

template/components/content_pagination.go

@@ -0,0 +1,9 @@
+package components
+
+type ContentPagination struct {
+	PageStartRecord int
+	PageEndRecord   int
+	TotalRecords    int
+	PrevLink        string
+	NextLink        string
+}

template/components/content_pagination.html

@@ -0,0 +1,10 @@
+{{define "content_pagination"}}
+<div class="pagination-container">
+  <ul class="pagination pagination-sm">
+      <li class="page-item">{{.PageStartRecord}} - {{.PageEndRecord}} of {{.TotalRecords}}</li>
+      <li class="page-item">&nbsp;</li>
+      <li class="page-item"><a class="page-link{{if eq .PrevLink ""}} disabled"{{else}}" href="{{.PrevLink}}"{{end}}>«</a></li>
+      <li class="page-item"><a class="page-link{{if eq .NextLink ""}} disabled"{{else}}" href="{{.NextLink}}"{{end}}>»</a></li>
+  </ul>
+</div>
+{{end}}

template/components/content_table.go

@@ -10,11 +10,12 @@ type ContentTable struct {
 
 type ContentTableTH struct {
 	ID        string
-	ValueType string // ->  default string, href, badge
+	ValueType string // ->  default string, href, badge, list, checkbox
 	Value     string
 }
 
 type ContentTableTD struct {
-	ID    string
-	Value interface{} // string or component struct according ValueType
+	ID         string
+	Value      interface{} // string or component struct according ValueType
+	ValueClass string
 }

template/components/content_table.html

@@ -7,12 +7,18 @@
   </thead>
   <tbody>
     {{- range .AllTD}}<tr scope="row">
-      {{range $index, $item := .}}<td {{ if $item.ID }}id="{{$item.ID}}"{{end}}>
+      {{range $index, $item := .}}<td {{ if $item.ID }}id="{{$item.ID}}"{{end}}{{ if $item.ValueClass }} class="{{$item.ValueClass}}"{{end}}>
         {{ with $x := index $.AllTH $index }} 
           {{ if eq $x.ValueType "href"}}
             {{template "content_href" $item.Value}}
           {{ else if eq $x.ValueType "badge"}}
             {{template "content_badge" $item.Value}}
+          {{ else if eq $x.ValueType "list"}}
+            {{template "content_list" $item.Value}} 
+          {{ else if eq $x.ValueType "checkbox"}}
+            {{template "form_checkbox" $item.Value}}
+          {{ else if eq $x.ValueType "image"}}
+              <img src="{{ $item.Value }}">                                 
           {{ else }}
             {{ $item.Value }}
           {{end}}

template/components/form_button.go

@@ -1,6 +1,8 @@
 package components
 
 type FormButton struct {
+	ID         string
+	Value      string
 	Text       string
 	Icon       string
 	IsSubmit   bool

template/components/form_button.html

@@ -1,5 +1,5 @@
 {{define "form_button"}}
-    <button class="btn btn-{{.TypeClass}}" {{if eq .IsSubmit true}}type="submit"{{else}}type="button"{{end}} {{if .IsDisabled}}disabled{{end}}>
+    <button {{if .ID }}id="{{.ID}}" name="{{.ID}}"{{end}} {{if .Value }}value="{{.Value}}" name="{{.ID}}"{{end}} class="btn btn-{{.TypeClass}}" {{if eq .IsSubmit true}}type="submit"{{else}}type="button"{{end}} {{if .IsDisabled}}disabled{{end}}>
         {{.Text}}
     </button>
         <!-- tailwind heroicons -->

template/components/form_checkbox.html

@@ -1,6 +1,6 @@
 {{define "form_checkbox"}}
 <div class="input-container">
-  <label class="form-label">{{.Label}}</label>
+  {{ if .Label }}<label class="form-label">{{.Label}}</label>{{end}}
   {{range $options := .AllCheckbox}}
   <div class="form-check">
     <input class="form-check-input" type="checkbox" name="{{$options.Name}}" id="{{$options.ID}}" value="{{$options.Value}}"{{if eq $options.IsChecked true}} checked{{end}}>

template/components/form_input.go

@@ -1,13 +1,20 @@
 package components
 
 type FormInput struct {
-	ID          string
-	Label       string
-	Type        string
-	Placeholder string
-	Value       string
-	Hint        string
-	Error       string
-	IsDisabled  bool
-	IsRequired  bool
+	ID           string
+	Label        string
+	Type         string
+	Placeholder  string
+	Value        string
+	Hint         string
+	Error        string
+	IsDisabled   bool
+	Autocomplete bool
+	IsRequired   bool
+	CustomAtt    []CustomAtt
+}
+
+type CustomAtt struct {
+	AttName  string
+	AttValue string
 }

template/components/form_input.html

@@ -8,9 +8,17 @@
         {{if eq .IsRequired true}}
             required
         {{end}}
+        {{if eq .Autocomplete false}}
+            autocomplete="off"
+        {{end}}        
         {{if ne .Value ""}}
             value="{{.Value}}"
         {{end}}
+        {{if .CustomAtt }}
+            {{range $options := .CustomAtt}}
+                {{$options.AttName}}="{{$options.AttValue}}"
+            {{end}}
+        {{end}}
         aria-describedby="{{.ID}}Help">
    {{if ne .Hint ""}}<small id="{{.ID}}Help" class="form-text text-muted">{{.Hint}}</small>{{end}}
     {{if ne .Error ""}}<div class="error">{{.Error}}</div>{{end}}

template/components/form_select.go

@@ -5,6 +5,7 @@ type FormSelect struct {
 	SelectedOption FormSelectOption
 	Label          string
 	AllOptions     []FormSelectOption
+	IsMultiple     bool
 }
 
 type FormSelectOption struct {

template/components/form_select.html

@@ -1,7 +1,7 @@
 {{define "form_select"}}
 <div class="input-container">
   <label for="{{.ID}}" class="form-label">{{.Label}}</label>
-  <select class="form-select" id="{{.ID}}" name="{{.ID}}">
+  <select class="form-select" id="{{.ID}}" name="{{.ID}}"{{if eq .IsMultiple true}} multiple{{end}}>
   {{range $options := .AllOptions}}
       <option value="{{$options.Value}}" {{if eq $options.Value $.SelectedOption.Value }}selected="selected"{{end}}>{{$options.Caption}}</option>
   {{end}}

template/components/page_nav.go

@@ -10,6 +10,7 @@ type PageNav struct {
 type PageNavItem struct {
 	Text       string
 	Link       string
+	ID         string
 	IsDisabled bool
 	IsActive   bool
 	ChildItems []PageNavItem

template/components/page_nav.html

@@ -1,11 +1,16 @@
 {{define "page_nav"}}
     <ul class="nav justify-content-center {{.NavClass}} {{if eq .IsVertical true}}flex-column{{end}}{{if eq .IsTab true}}nav-tabs{{end}}" {{if eq .IsTab true}}role="tablist"{{end}}>
         {{range $item := .NavItems}}
-        
             {{if gt (len $item.ChildItems) 0}}
+              {{ $hasActiveChild := false }}
+              {{range $child := $item.ChildItems}}
+                  {{if $child.IsActive}}
+                      {{ $hasActiveChild = true }}
+                  {{end}}
+              {{end}}
                 <li class="nav-item dropdown">
                     <a href="{{$item.Link}}" {{if eq .IsDisabled true}}disabled{{end}} data-bs-toggle="dropdown" 
-                        class="nav-link  dropdown-toggle {{if eq .IsActive true}}active{{end}} {{if eq .IsDisabled true}}disabled{{end}}">{{$item.Text}}</a>
+                        class="nav-link  dropdown-toggle {{if or $item.IsActive $hasActiveChild}}active{{end}} {{if eq .IsDisabled true}}disabled{{end}}">{{$item.Text}}</a>
                     <ul class="dropdown-menu">
                         {{ range $item.ChildItems}}
                             {{template "content_dropdown_item" .}}

templates.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2024 Zeni Kim <zenik@smarteching.com>
+// Copyright (c) 2026 Zeni Kim <zenik@smarteching.com>
 // Use of this source code is governed by MIT-style
 // license that can be found in the LICENSE file.
 
@@ -6,15 +6,337 @@ package core
 
 import (
 	"embed"
+	"fmt"
 	"html/template"
 	"io/fs"
+	"math"
+	"reflect"
 	"strings"
+	"time"
+	"unicode"
+	"golang.org/x/text/language"
+	"golang.org/x/text/message"
 )
 
 var tmpl *template.Template = nil
 
+// ─────────────────────────────────────────────
+// Struct helpers
+// ─────────────────────────────────────────────
+
+// hasField checks if a struct has a given field name.
+// It can be used inside Go html/templates like:
+//
+//	{{if hasField . "FieldA"}}<a>{{.FieldA}}</a>{{end}}
+func hasField(v interface{}, name string) bool {
+	rv := reflect.ValueOf(v)
+	if rv.Kind() == reflect.Ptr {
+		rv = rv.Elem()
+	}
+	if rv.Kind() != reflect.Struct {
+		return false
+	}
+	return rv.FieldByName(name).IsValid()
+}
+
+// ─────────────────────────────────────────────
+// String helpers
+// ─────────────────────────────────────────────
+
+// capitalize uppercases the first letter of a string and lowercases the rest.
+//
+//	{{capitalize "hello world"}} → "Hello world"
+func capitalize(s string) string {
+	if s == "" {
+		return ""
+	}
+	runes := []rune(s)
+	runes[0] = unicode.ToUpper(runes[0])
+	for i := 1; i < len(runes); i++ {
+		runes[i] = unicode.ToLower(runes[i])
+	}
+	return string(runes)
+}
+
+// prepend adds a prefix string to the beginning of s.
+//
+//	{{prepend "World" "Hello, "}} → "Hello, World"
+func prepend(s, prefix string) string {
+	return prefix + s
+}
+
+// strAppend adds a suffix string to the end of s.
+// Named strAppend to avoid collision with the builtin append keyword.
+//
+//	{{strAppend "Hello" "!"}} → "Hello!"
+func strAppend(s, suffix string) string {
+	return s + suffix
+}
+
+// split divides s into a slice of substrings separated by sep.
+// Useful when combined with range in templates.
+//
+//	{{range split .Tags ","}}...{{end}}
+func split(s, sep string) []string {
+	return strings.Split(s, sep)
+}
+
+// truncate cuts s to at most n characters. Designed for pipeline use:
+//   {{.Title | truncate 30}}
+func truncate(n int, s string) string {
+    runes := []rune(s)
+    if len(runes) <= n {
+        return s
+    }
+    return string(runes[:n]) + "…"
+}
+
+// ─────────────────────────────────────────────
+// Number helpers
+// ─────────────────────────────────────────────
+
+// fmtNumber formats an integer or float with thousands separators
+// using the English locale (e.g. 1000000 → "1,000,000").
+//
+//	{{fmtNumber .Price}}
+func fmtNumber(v interface{}) string {
+	p := message.NewPrinter(language.English)
+	switch n := v.(type) {
+	case int:
+		return p.Sprintf("%d", n)
+	case int64:
+		return p.Sprintf("%d", n)
+	case float64:
+		// trim unnecessary trailing zeros
+		formatted := p.Sprintf("%.2f", n)
+		return formatted
+	case float32:
+		return p.Sprintf("%.2f", n)
+	default:
+		return fmt.Sprintf("%v", v)
+	}
+}
+
+// ─────────────────────────────────────────────
+// Date & time helpers
+// ─────────────────────────────────────────────
+
+// fmtDate formats a time.Time value using a named layout or a custom Go layout string.
+// Named layouts: "short" → "02 Jan 2006", "long" → "02 January 2006",
+// "iso" → "2006-01-02", "datetime" → "02 Jan 2006 15:04".
+// Any other string is used directly as a Go time layout.
+//
+//	{{fmtDate .PublishedAt "short"}}
+//	{{fmtDate .CreatedAt "02/01/2006"}}
+func fmtDate(t time.Time, layout string) string {
+	switch layout {
+	case "short":
+		return t.Format("02 Jan 2006")
+	case "long":
+		return t.Format("02 January 2006")
+	case "iso":
+		return t.Format("2006-01-02")
+	case "datetime":
+		return t.Format("02 Jan 2006 15:04")
+	default:
+		return t.Format(layout)
+	}
+}
+
+// timeAgo returns a human-readable relative time string from now.
+//
+//	{{timeAgo .PublishedAt}} → "3 hours ago", "2 days ago", "just now"
+func timeAgo(t time.Time) string {
+	diff := time.Since(t)
+
+	switch {
+	case diff < time.Minute:
+		return "just now"
+	case diff < time.Hour:
+		m := int(math.Round(diff.Minutes()))
+		return plural(m, "minute") + " ago"
+	case diff < 24*time.Hour:
+		h := int(math.Round(diff.Hours()))
+		return plural(h, "hour") + " ago"
+	case diff < 7*24*time.Hour:
+		d := int(math.Round(diff.Hours() / 24))
+		return plural(d, "day") + " ago"
+	case diff < 30*24*time.Hour:
+		w := int(math.Round(diff.Hours() / 24 / 7))
+		return plural(w, "week") + " ago"
+	case diff < 365*24*time.Hour:
+		mo := int(math.Round(diff.Hours() / 24 / 30))
+		return plural(mo, "month") + " ago"
+	default:
+		y := int(math.Round(diff.Hours() / 24 / 365))
+		return plural(y, "year") + " ago"
+	}
+}
+
+// plural is an internal helper that returns "1 item" or "N items".
+func plural(n int, unit string) string {
+	if n == 1 {
+		return fmt.Sprintf("%d %s", n, unit)
+	}
+	return fmt.Sprintf("%d %ss", n, unit)
+}
+
+// ─────────────────────────────────────────────
+// Collection helpers
+// ─────────────────────────────────────────────
+
+// first returns the first element of a slice, or nil if empty.
+//
+//	{{with first .Items}}{{.Name}}{{end}}
+func first(slice interface{}) interface{} {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice || rv.Len() == 0 {
+		return nil
+	}
+	return rv.Index(0).Interface()
+}
+
+// last returns the last element of a slice, or nil if empty.
+//
+//	{{with last .Items}}{{.Name}}{{end}}
+func last(slice interface{}) interface{} {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice || rv.Len() == 0 {
+		return nil
+	}
+	return rv.Index(rv.Len() - 1).Interface()
+}
+
+// sliceOf returns a sub-range of a slice from index start (inclusive) to end (exclusive).
+// Named sliceOf to avoid collision with the builtin slice expression.
+//
+//	{{range sliceOf .Items 0 3}}...{{end}}
+func sliceOf(slice interface{}, start, end int) interface{} {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return nil
+	}
+	if start < 0 {
+		start = 0
+	}
+	if end > rv.Len() {
+		end = rv.Len()
+	}
+	return rv.Slice(start, end).Interface()
+}
+
+// contains reports whether item is present in slice (or substr in a string).
+//
+//	{{if contains .Tags "go"}}...{{end}}
+//	{{if contains .Bio "engineer"}}...{{end}}
+func contains(collection, item interface{}) bool {
+	// string substring check
+	if s, ok := collection.(string); ok {
+		if sub, ok := item.(string); ok {
+			return strings.Contains(s, sub)
+		}
+		return false
+	}
+	rv := reflect.ValueOf(collection)
+	if rv.Kind() != reflect.Slice {
+		return false
+	}
+	for i := 0; i < rv.Len(); i++ {
+		if reflect.DeepEqual(rv.Index(i).Interface(), item) {
+			return true
+		}
+	}
+	return false
+}
+
+// join concatenates the elements of a string slice with sep as separator.
+//
+//	{{join .Tags ", "}}
+func join(slice []string, sep string) string {
+	return strings.Join(slice, sep)
+}
+
+// ─────────────────────────────────────────────
+// Logic helpers
+// ─────────────────────────────────────────────
+
+// defaultVal returns fallback if value is the zero value or an empty string.
+//
+//	{{defaultVal "N/A" .OptionalField}}
+func defaultVal(fallback, value interface{}) interface{} {
+	if value == nil {
+		return fallback
+	}
+	rv := reflect.ValueOf(value)
+	if rv.IsZero() {
+		return fallback
+	}
+	return value
+}
+
+// ternary returns trueVal if condition is true, falseVal otherwise.
+//
+//	{{ternary "Active" "Inactive" .IsActive}}
+func ternary(trueVal, falseVal interface{}, condition bool) interface{} {
+	if condition {
+		return trueVal
+	}
+	return falseVal
+}
+
+// coalesce returns the first non-empty, non-nil value from the provided list.
+//
+//	{{coalesce .Nickname .FullName "Anonymous"}}
+func coalesce(values ...interface{}) interface{} {
+	for _, v := range values {
+		if v == nil {
+			continue
+		}
+		rv := reflect.ValueOf(v)
+		if !rv.IsZero() {
+			return v
+		}
+	}
+	return nil
+}
+
+// ─────────────────────────────────────────────
+// FuncMap registry
+// ─────────────────────────────────────────────
+
+func funcMap() template.FuncMap {
+	return template.FuncMap{
+		// Struct
+		"hasField": hasField,
+		// String
+		"capitalize": capitalize,
+		"prepend":    prepend,
+		"strAppend":  strAppend,
+		"split":      split,
+		"truncate":   truncate,
+		// Number
+		"fmtNumber": fmtNumber,
+		// Date & time
+		"fmtDate": fmtDate,
+		"timeAgo": timeAgo,
+		// Collections
+		"first":   first,
+		"last":    last,
+		"sliceOf": sliceOf,
+		"contains": contains,
+		"join":    join,
+		// Logic
+		"defaultVal": defaultVal,
+		"ternary":    ternary,
+		"coalesce":   coalesce,
+	}
+}
+
+// ─────────────────────────────────────────────
+// Template initializer
+// ─────────────────────────────────────────────
+
 func NewTemplates(components embed.FS, templates embed.FS) {
-	// templates
 	var paths []string
 	fs.WalkDir(components, ".", func(path string, d fs.DirEntry, err error) error {
 		if strings.Contains(d.Name(), ".html") {
@@ -31,6 +353,10 @@ func NewTemplates(components embed.FS, templates embed.FS) {
 		return nil
 	})
 
-	tmpla := template.Must(template.ParseFS(components, paths...))
-	tmpl = template.Must(tmpla.ParseFS(templates, pathst...))
-}
+	tmpl = template.Must(
+		template.New("").
+			Funcs(funcMap()).
+			ParseFS(components, paths...),
+	)
+	tmpl = template.Must(tmpl.ParseFS(templates, pathst...))
+}