Merge pull request 'develop' (#12) from develop into main

Reviewed-on: #12

consts.go

@@ -11,6 +11,9 @@ const CONTENT_TYPE string = "content-Type"
 const CONTENT_TYPE_HTML string = "text/html; charset=utf-8"
 const CONTENT_TYPE_JSON string = "application/json"
 const CONTENT_TYPE_TEXT string = "text/plain"
+const CONTENT_TYPE_IMAGEPNG string = "image/png"
+const CONTENT_TYPE_IMAGEJPG string = "image/jpeg"
+const CONTENT_TYPE_IMAGESVGXML string = "image/svg+xml"
 const CONTENT_TYPE_MULTIPART_FORM_DATA string = "multipart/form-data;"
 const LOCALHOST string = "http://localhost"
 const TEST_STR string = "Testing!"

context.go

@@ -68,10 +68,49 @@ 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) GetRequesBodyMap() map[string]interface{} {
+	var dat map[string]any
+	body := c.Request.httpRequest.Body
+	if body != nil {
+		if content, err := io.ReadAll(body); err == nil {
+			json.Unmarshal(content, &dat)
+		}
+	}
+	return dat
+}
+
+// get json body and bind to dest interface
+func (c *Context) GetRequesBodyStruct(dest interface{}) error {
+	body := c.Request.httpRequest.Body
+	if body != nil {
+		value := reflect.ValueOf(dest)
+		if value.Kind() != reflect.Ptr {
+			fmt.Println("dest is not a pointer")
+			return errors.New("dest is not a pointer")
+		}
+		err := json.NewDecoder(body).Decode(dest)
+		return err
+	}
+	return nil
+}
+
 func (c *Context) GetHeader(key string) string {
 	return c.Request.httpRequest.Header.Get(key)
 }
 
+func (c *Context) GetCookie() (UserCookie, error) {
+
+	user, err := GetCookie(c.Request.httpRequest)
+	if err != nil {
+		return user, err
+	}
+	return user, nil
+}
+
 func (c *Context) GetUploadedFile(name string) *UploadedFileInfo {
 	file, fileHeader, err := c.Request.httpRequest.FormFile(name)
 	if err != nil {

cookies.go

@@ -0,0 +1,270 @@
+// Copyright (c) 2024 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 (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/gob"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var (
+	ErrValueTooLong = errors.New("cookie value too long")
+	ErrInvalidValue = errors.New("invalid cookie value")
+)
+
+// Declare the User type.
+type UserCookie struct {
+	Email string
+	Token string
+}
+
+var secretcookie []byte
+
+func GetCookie(r *http.Request) (UserCookie, error) {
+
+	var err error
+	// Create a new instance of a User type.
+	var user UserCookie
+
+	// check if template engine is enable
+	TemplateEnableStr := os.Getenv("TEMPLATE_ENABLE")
+	if TemplateEnableStr == "" {
+		TemplateEnableStr = "false"
+	}
+	TemplateEnable, _ := strconv.ParseBool(TemplateEnableStr)
+	// if enabled,
+	if TemplateEnable {
+		cookie_secret := os.Getenv("COOKIE_SECRET")
+		if cookie_secret == "" {
+			panic("cookie secret key is not set")
+		}
+		secretcookie, err = hex.DecodeString(cookie_secret)
+		if err != nil {
+			return user, err
+		}
+	} else {
+		panic("Templates are disabled")
+	}
+
+	gobEncodedValue, err := CookieReadEncrypted(r, "goffee", secretcookie)
+	if err != nil {
+		return user, err
+	}
+
+	// Create an strings.Reader containing the gob-encoded value.
+	reader := strings.NewReader(gobEncodedValue)
+
+	// Decode it into the User type. Notice that we need to pass a *pointer* to
+	// the Decode() target here?
+	if err := gob.NewDecoder(reader).Decode(&user); err != nil {
+		return user, err
+	}
+
+	return user, nil
+
+}
+
+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.
+	var err error
+
+	// check if template engine is enable
+	TemplateEnableStr := os.Getenv("TEMPLATE_ENABLE")
+	if TemplateEnableStr == "" {
+		TemplateEnableStr = "false"
+	}
+	TemplateEnable, _ := strconv.ParseBool(TemplateEnableStr)
+	// if enabled,
+	if TemplateEnable {
+		cookie_secret := os.Getenv("COOKIE_SECRET")
+		if cookie_secret == "" {
+			panic("cookie secret key is not set")
+		}
+		secretcookie, err = hex.DecodeString(cookie_secret)
+		if err != nil {
+			return err
+		}
+	} else {
+		panic("Templates are disabled")
+	}
+
+	if err != nil {
+		return err
+	}
+
+	user := UserCookie{Email: email, Token: token}
+
+	// Initialize a buffer to hold the gob-encoded data.
+	var buf bytes.Buffer
+
+	// Gob-encode the user data, storing the encoded output in the buffer.
+	err = gob.NewEncoder(&buf).Encode(&user)
+	if err != nil {
+		return err
+	}
+
+	// Call buf.String() to get the gob-encoded value as a string and set it as
+	// the cookie value.
+	cookie := http.Cookie{
+		Name:     "goffee",
+		Value:    buf.String(),
+		Path:     "/",
+		MaxAge:   3600,
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+	}
+
+	// Write an encrypted cookie containing the gob-encoded data as normal.
+	err = CookieWriteEncrypted(w, cookie, secretcookie)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func CookieWrite(w http.ResponseWriter, cookie http.Cookie) error {
+	// Encode the cookie value using base64.
+	cookie.Value = base64.URLEncoding.EncodeToString([]byte(cookie.Value))
+
+	// Check the total length of the cookie contents. Return the ErrValueTooLong
+	// error if it's more than 4096 bytes.
+	if len(cookie.String()) > 4096 {
+		return ErrValueTooLong
+	}
+
+	// Write the cookie as normal.
+	http.SetCookie(w, &cookie)
+
+	return nil
+}
+
+func CookieRead(r *http.Request, name string) (string, error) {
+	// Read the cookie as normal.
+	cookie, err := r.Cookie(name)
+	if err != nil {
+		return "", err
+	}
+
+	// Decode the base64-encoded cookie value. If the cookie didn't contain a
+	// valid base64-encoded value, this operation will fail and we return an
+	// ErrInvalidValue error.
+	value, err := base64.URLEncoding.DecodeString(cookie.Value)
+	if err != nil {
+		return "", ErrInvalidValue
+	}
+
+	// Return the decoded cookie value.
+	return string(value), nil
+}
+
+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)
+	if err != nil {
+		return err
+	}
+
+	// Wrap the cipher block in Galois Counter Mode.
+	aesGCM, err := cipher.NewGCM(block)
+	if err != nil {
+		return err
+	}
+
+	// Create a unique nonce containing 12 random bytes.
+	nonce := make([]byte, aesGCM.NonceSize())
+	_, err = io.ReadFull(rand.Reader, nonce)
+	if err != nil {
+		return err
+	}
+
+	// Prepare the plaintext input for encryption. Because we want to
+	// authenticate the cookie name as well as the value, we make this plaintext
+	// in the format "{cookie name}:{cookie value}". We use the : character as a
+	// separator because it is an invalid character for cookie names and
+	// therefore shouldn't appear in them.
+	plaintext := fmt.Sprintf("%s:%s", cookie.Name, cookie.Value)
+
+	// Encrypt the data using aesGCM.Seal(). By passing the nonce as the first
+	// parameter, the encrypted data will be appended to the nonce — meaning
+	// that the returned encryptedValue variable will be in the format
+	// "{nonce}{encrypted plaintext data}".
+	encryptedValue := aesGCM.Seal(nonce, nonce, []byte(plaintext), nil)
+
+	// Set the cookie value to the encryptedValue.
+	cookie.Value = string(encryptedValue)
+
+	// Write the cookie as normal.
+	return CookieWrite(w, cookie)
+}
+
+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)
+	if err != nil {
+		return "", err
+	}
+
+	// Create a new AES cipher block from the secret key.
+	block, err := aes.NewCipher(secretKey)
+	if err != nil {
+		return "", err
+	}
+
+	// Wrap the cipher block in Galois Counter Mode.
+	aesGCM, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+
+	// Get the nonce size.
+	nonceSize := aesGCM.NonceSize()
+
+	// To avoid a potential 'index out of range' panic in the next step, we
+	// check that the length of the encrypted value is at least the nonce
+	// size.
+	if len(encryptedValue) < nonceSize {
+		return "", ErrInvalidValue
+	}
+
+	// Split apart the nonce from the actual encrypted data.
+	nonce := encryptedValue[:nonceSize]
+	ciphertext := encryptedValue[nonceSize:]
+
+	// Use aesGCM.Open() to decrypt and authenticate the data. If this fails,
+	// return a ErrInvalidValue error.
+	plaintext, err := aesGCM.Open(nil, []byte(nonce), []byte(ciphertext), nil)
+	if err != nil {
+		return "", ErrInvalidValue
+	}
+
+	// The plaintext value is in the format "{cookie name}:{cookie value}". We
+	// use strings.Cut() to split it on the first ":" character.
+	expectedName, value, ok := strings.Cut(string(plaintext), ":")
+	if !ok {
+		return "", ErrInvalidValue
+	}
+
+	// Check that the cookie name is the expected one and hasn't been changed.
+	if expectedName != name {
+		return "", ErrInvalidValue
+	}
+
+	// Return the plaintext cookie value.
+	return value, nil
+}

core.go

@@ -6,6 +6,7 @@
 package core
 
 import (
+	"embed"
 	"fmt"
 	"log"
 	"net/http"
@@ -35,14 +36,18 @@ var cacheC CacheConfig
 var db *gorm.DB
 var mailer *Mailer
 var basePath string
+var runMode string
 var disableEvents bool = false
 
+//go:embed all:template
+var components_resources embed.FS
+
 type configContainer struct {
 	Request RequestConfig
 }
 
 type App struct {
-	t      int // for trancking hooks
+	t      int // for tracking hooks
 	chain  *chain
 	hooks  *Hooks
 	Config *configContainer
@@ -75,24 +80,44 @@ func (app *App) Bootstrap() {
 	NewEventsManager()
 }
 
+func (app *App) RegisterTemplates(templates_resources embed.FS) {
+	NewTemplates(components_resources, templates_resources)
+}
+
 func (app *App) Run(router *httprouter.Router) {
 	portNumber := os.Getenv("App_HTTP_PORT")
 	if portNumber == "" {
 		portNumber = "80"
 	}
 	router = app.RegisterRoutes(ResolveRouter().GetRoutes(), router)
+
+	// check if template engine is enable
+	TemplateEnableStr := os.Getenv("TEMPLATE_ENABLE")
+	if TemplateEnableStr == "" {
+		TemplateEnableStr = "false"
+	}
+	TemplateEnable, _ := strconv.ParseBool(TemplateEnableStr)
+	// if enabled,
+	if TemplateEnable {
+		router.ServeFiles("/public/*filepath", http.Dir("storage/public"))
+	}
+
 	useHttpsStr := os.Getenv("App_USE_HTTPS")
 	if useHttpsStr == "" {
 		useHttpsStr = "false"
 	}
 	useHttps, _ := strconv.ParseBool(useHttpsStr)
 
+	if runMode == "dev" {
 		fmt.Printf("Welcome to Goffee\n")
 		if useHttps {
 			fmt.Printf("Listening on https \nWaiting for requests...\n")
 		} else {
 			fmt.Printf("Listening on port %s\nWaiting for requests...\n", portNumber)
 		}
+	}
+
+	// check if use letsencrypt
 	UseLetsEncryptStr := os.Getenv("App_USE_LETSENCRYPT")
 	if UseLetsEncryptStr == "" {
 		UseLetsEncryptStr = "false"
@@ -135,6 +160,7 @@ func (app *App) RegisterRoutes(routes []Route, router *httprouter.Router) *httpr
 	router.PanicHandler = panicHandler
 	router.NotFound = notFoundHandler{}
 	router.MethodNotAllowed = methodNotAllowed{}
+
 	for _, route := range routes {
 		switch route.Method {
 		case GET:
@@ -153,11 +179,24 @@ func (app *App) RegisterRoutes(routes []Route, router *httprouter.Router) *httpr
 			router.HEAD(route.Path, app.makeHTTPRouterHandlerFunc(route.Controller, route.Hooks))
 		}
 	}
+
+	// check if enable core services
+	UseCoreServicesStr := os.Getenv("App_USE_CORESERVICES")
+	if UseCoreServicesStr == "" {
+		UseCoreServicesStr = "false"
+	}
+	UseCoreServices, _ := strconv.ParseBool(UseCoreServicesStr)
+	if UseCoreServices {
+		// Register router for graphs
+		router.GET("/coregraph/*graph", Graph)
+	}
+
 	return router
 }
 
 func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+
 		ctx := &Context{
 			Request: &Request{
 				httpRequest:    r,
@@ -181,11 +220,13 @@ func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Ha
 			GetEventsManager: resolveEventsManager(),
 			GetLogger:        resolveLogger(),
 		}
+
 		ctx.prepare(ctx)
 		rhs := app.combHandlers(h, ms)
 		app.prepareChain(rhs)
 		app.t = 0
 		app.chain.execute(ctx)
+
 		for _, header := range ctx.Response.headers {
 			w.Header().Add(header.key, header.val)
 		}
@@ -198,6 +239,7 @@ func (app *App) makeHTTPRouterHandlerFunc(h Controller, ms []Hook) httprouter.Ha
 		} else {
 			ct = CONTENT_TYPE_HTML
 		}
+
 		w.Header().Add(CONTENT_TYPE, ct)
 		if ctx.Response.statusCode != 0 {
 			w.WriteHeader(ctx.Response.statusCode)
@@ -532,6 +574,10 @@ func (app *App) SetBasePath(path string) {
 	basePath = path
 }
 
+func (app *App) SetRunMode(runmode string) {
+	runMode = runmode
+}
+
 func DisableEvents() {
 	disableEvents = true
 }

go.mod

@@ -4,9 +4,10 @@ replace git.smarteching.com/goffee/core/logger => ./logger
 
 replace git.smarteching.com/goffee/core/env => ./env
 
-go 1.20
+go 1.23.1
 
 require (
+	git.smarteching.com/zeni/go-chart/v2 v2.1.4
 	github.com/brianvoe/gofakeit/v6 v6.21.0
 	github.com/golang-jwt/jwt/v5 v5.0.0
 	github.com/google/uuid v1.3.0
@@ -26,6 +27,7 @@ require (
 	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/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
@@ -37,8 +39,9 @@ require (
 	github.com/pkg/errors v0.9.1 // 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 v0.11.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
 )
 
 require (

go.sum

@@ -1,3 +1,5 @@
+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=
 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=
@@ -5,7 +7,9 @@ github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:W
 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/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=
@@ -31,6 +35,8 @@ github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3a
 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/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/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=
@@ -83,21 +89,25 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
 golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/image v0.21.0 h1:c5qV36ajHpdj4Qi0GnE0jUc/yuo33OLFaa0d+crTD5s=
+golang.org/x/image v0.21.0/go.mod h1:vUbsLavqK/W303ZroQQVKQ+Af3Yl6Uz1Ppu5J/cLz78=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
-golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/driver/mysql v1.5.1 h1:WUEH5VF9obL/lTtzjmML/5e6VfFR/788coz2uaVCAZw=
 gorm.io/driver/mysql v1.5.1/go.mod h1:Jo3Xu7mMhCyj8dlrb3WoCaRd1FhsVh+yMXb1jUInf5o=
 gorm.io/driver/postgres v1.5.2 h1:ytTDxxEv+MplXOfFe3Lzm7SjG09fcdb3Z/c056DTBx0=

graph.go

@@ -0,0 +1,140 @@
+// Copyright (c) 2024 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 (
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"git.smarteching.com/zeni/go-chart/v2"
+	"github.com/julienschmidt/httprouter"
+)
+
+func Graph(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+
+	// $_GET values
+
+	service := ps.ByName("graph")
+
+	if service != "" {
+
+		//serv := strings.TrimPrefix(service, "/")
+		serv := strings.Split(service, "/")
+
+		switch serv[1] {
+
+		case "graph":
+
+			kindg := serv[2]
+
+			if kindg != "" {
+
+				switch kindg {
+				// case graph pie
+				case "pie":
+
+					queryValues := r.URL.Query()
+					labels := strings.Split(queryValues.Get("l"), "|")
+					values := strings.Split(queryValues.Get("v"), "|")
+
+					qtyl := len(labels)
+					qtyv := len(values)
+
+					// cjeck qty and equal values from url
+					if qtyl < 2 {
+						fmt.Fprintf(w, "Missing captions in pie")
+						return
+					}
+					if qtyv != qtyl {
+						fmt.Fprintf(w, "Labels and values mismatch")
+						return
+					}
+
+					var cvalues []chart.Value
+					var row chart.Value
+					// fill values
+					for index, line := range labels {
+						valuefloat, _ := strconv.ParseFloat(values[index], 64)
+						row.Value = valuefloat
+						row.Label = line
+						cvalues = append(cvalues, row)
+					}
+
+					pie := chart.PieChart{
+						Width:  512,
+						Height: 512,
+						Values: cvalues,
+					}
+					w.Header().Set("Content-Type", "image/png")
+					err := pie.Render(chart.PNG, w)
+					if err != nil {
+						fmt.Printf("Error rendering pie chart: %v\n", err)
+					}
+
+				// case graph bar
+				case "bar":
+
+					queryValues := r.URL.Query()
+					labels := strings.Split(queryValues.Get("l"), "|")
+					values := strings.Split(queryValues.Get("v"), "|")
+
+					qtyl := len(labels)
+					qtyv := len(values)
+
+					// cjeck qty and equal values from url
+					if qtyl < 2 {
+						fmt.Fprintf(w, "Missing captions in pie")
+						return
+					}
+					if qtyv != qtyl {
+						fmt.Fprintf(w, "Labels and values mismatch")
+						return
+					}
+
+					var cvalues []chart.Value
+					var row chart.Value
+					// fill values
+					for index, line := range labels {
+						valuefloat, _ := strconv.ParseFloat(values[index], 64)
+						row.Value = valuefloat
+						row.Label = line
+						cvalues = append(cvalues, row)
+					}
+
+					bar := chart.BarChart{
+						Height:   512,
+						BarWidth: 50,
+						Bars:     cvalues,
+					}
+					w.Header().Set("Content-Type", "image/png")
+					err := bar.Render(chart.PNG, w)
+					if err != nil {
+						fmt.Printf("Error rendering pie chart: %v\n", err)
+					}
+
+				default:
+					fmt.Fprintf(w, "Unknown graph %s!\n", kindg)
+				}
+
+			} else {
+				fmt.Fprintf(w, "Kind graph not exists")
+			}
+			//
+
+		default:
+
+			fmt.Fprintf(w, "Unknown option in core service %s!\n", ps.ByName("serv"))
+
+		}
+		fmt.Fprintf(w, "Service %s!\n", serv)
+
+	} else {
+
+		fmt.Fprintf(w, "Unknown core service %s!\n", ps.ByName("graph"))
+	}
+
+}

response.go

@@ -6,6 +6,7 @@
 package core
 
 import (
+	"bytes"
 	"fmt"
 	"net/http"
 )
@@ -63,6 +64,20 @@ func (rs *Response) HTML(body string) *Response {
 	return rs
 }
 
+// TODO add doc
+func (rs *Response) Template(name string, data interface{}) *Response {
+	var buffer bytes.Buffer
+	if rs.isTerminated == false {
+		err := tmpl.ExecuteTemplate(&buffer, name, data)
+		if err != nil {
+			panic(fmt.Sprintf("error executing template: %v", err))
+		}
+		rs.contentType = CONTENT_TYPE_HTML
+		buffer.WriteTo(rs.HttpResponseWriter)
+	}
+	return rs
+}
+
 // TODO add doc
 func (rs *Response) SetStatusCode(code int) *Response {
 	if rs.isTerminated == false {

template/components/content_badge.go

@@ -0,0 +1,7 @@
+package components
+
+type ContentBadge struct {
+	Text      string
+	TypeClass string // type primary, secondary, success, danger, warning, info, light, dark, (default secondary)
+	IsOutline bool
+}

template/components/content_badge.html

@@ -0,0 +1,7 @@
+{{define "content_badge"}}
+    <span class="badge {{if eq .IsOutline true}}
+        border border-{{.TypeClass}} bg-{{.TypeClass}}-subtle text-{{.TypeClass}}-emphasis
+    {{else}}
+        text-bg-{{if .TypeClass}}{{.TypeClass}}{{else}}secondary{{end}}
+    {{end}} rounded-pill ">{{.Text}}</span>
+{{end}}

template/components/content_dropdown.go

@@ -0,0 +1,16 @@
+package components
+
+type ContentDropdown struct {
+	Label      string
+	TypeClass  string // type primary, secondary, success, danger, warning, info, light, dark, link, outline-primary
+	IsDisabled bool
+	Items      []ContentDropdownItem
+}
+
+type ContentDropdownItem struct {
+	Text       string
+	Link       string
+	ID         string
+	IsDisabled bool
+	IsActive   bool
+}

template/components/content_dropdown.html

@@ -0,0 +1,16 @@
+{{define "content_dropdown_item"}}
+    <li><a {{ if .ID }}id="{{.ID}}"{{end}} class="dropdown-item {{if eq .IsActive true}}active{{end}} {{if eq .IsDisabled true}}disabled{{end}}" href="{{.Link}}">{{.Text}}</a></li>
+{{end}}
+
+{{define "content_dropdown"}}
+    <div class="dropdown">
+        <button class="btn btn-{{.TypeClass}} dropdown-toggle {{if eq .IsDisabled true}}disabled{{end}}" type="button" data-bs-toggle="dropdown" aria-expanded="false">
+            {{.Label}}
+        </button>
+        <ul class="dropdown-menu">
+            {{ range .Items}}
+                {{template "content_dropdown_item" .}}
+            {{end}}
+        </ul>
+    </div>
+{{end}}

template/components/content_graph.go

@@ -0,0 +1,8 @@
+package components
+
+type ContentGraph struct {
+	Graph  string // pie, bar
+	Labels string
+	Values string
+	Alt    string
+}

template/components/content_graph.html

@@ -0,0 +1,3 @@
+{{define "content_graph"}}
+   <img src="/coregraph/graph/{{.Graph}}?l={{.Labels}}&v={{.Values}}" alt="{{.Alt}}">
+{{end}}

template/components/content_href.go

@@ -0,0 +1,11 @@
+package components
+
+type ContentHref struct {
+	Text       string
+	Link       string
+	Target     string // _blank  _parent  _self _top
+	Icon       string
+	IsButton   bool
+	TypeClass  string // type primary, secondary, success, danger, warning, info, light, dark, link
+	IsDisabled bool
+}

template/components/content_href.html

@@ -0,0 +1,7 @@
+{{define "content_href"}}
+    <a class="{{if eq .IsButton true}} btn btn-{{.TypeClass}}{{end}} {{if eq .IsDisabled true}}disabled{{end}}"
+        {{if .Target}} target="{{.Target}}"{{end}} 
+        href="{{.Link}}" {{if eq .IsButton true}}role="button"{{end}} {{if eq .IsDisabled true}}aria-disabled="true"{{end}}>
+        {{.Text}}
+    </a>
+{{end}}

template/components/content_list.go

@@ -0,0 +1,19 @@
+package components
+
+type ContentList struct {
+	Items []ContentListItem
+}
+
+type ContentListItem struct {
+	Text        string
+	Description string
+	EndElement  string
+	//Link       string
+	TypeClass  string // primary, secondary, success, danger, warning, info, light, dark
+	IsDisabled bool
+	//IsActive   bool
+}
+
+//link
+//border
+// badge

template/components/content_list.html

@@ -0,0 +1,14 @@
+{{define "content_list"}}
+    <ul class="list-group">
+        {{ 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}}            
+            ><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>
+        {{end}}
+    </ul>
+
+
+  
+{{end}}

template/components/content_table.go

@@ -0,0 +1,20 @@
+package components
+
+type ContentTable struct {
+	ID         string
+	TableClass string //   table-primary, table-secondary,.. table-striped table-bordered
+	HeadClass  string // table-dark table-light
+	AllTH      []ContentTableTH
+	AllTD      [][]ContentTableTD
+}
+
+type ContentTableTH struct {
+	ID        string
+	ValueType string // ->  default string, href, badge
+	Value     string
+}
+
+type ContentTableTD struct {
+	ID    string
+	Value interface{} // string or component struct according ValueType
+}

template/components/content_table.html

@@ -0,0 +1,25 @@
+{{define "content_table"}}
+<table class="table table-hover {{.TableClass}}" {{ if .ID }}id="{{.ID}}"{{end}}>
+  <thead class="{{.HeadClass}}">
+    <tr>
+      {{range $index, $col := .AllTH}}<th {{ if .ID }}id="{{.ID}}"{{end}} scope="col">{{ $col.Value }}</th>{{end}}
+    </tr>
+  </thead>
+  <tbody>
+    {{- range .AllTD}}<tr scope="row">
+      {{range $index, $item := .}}<td {{ if $item.ID }}id="{{$item.ID}}"{{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 }}
+            {{ $item.Value }}
+          {{end}}
+        {{end}}
+      </td>
+      {{end}}</tr>
+    {{- end}}
+  </tbody>
+</table>
+{{end}}

template/components/content_tabledetail.go

@@ -0,0 +1,16 @@
+package components
+
+type ContentTabledetail struct {
+	ID         string
+	TableClass string //   table-primary, table-secondary,.. table-striped table-bordered
+	HeadClass  string // table-dark table-light
+	Title      string
+	AllTD      []ContentTabledetailTD
+}
+
+type ContentTabledetailTD struct {
+	ID        string
+	Caption   string
+	ValueType string      // ->  default string, href, badge
+	Value     interface{} // string or component struct according ValueType
+}

template/components/content_tabledetail.html

@@ -0,0 +1,29 @@
+{{define "content_tabledetail"}}
+<table class="table table-hover" {{ if .ID }}id="{{.ID}}"{{end}}>
+  {{$stylecell := "table-success"}}
+  {{if .HeadClass }}{{$stylecell = .HeadClass}}{{end}}
+  {{if .Title }}
+  <thead class="{{.HeadClass}}">
+    <tr>
+      <th colspan="2" class="{{$stylecell}}">{{ .Title }}</th>
+    </tr>
+  </thead>
+  {{end}}
+  <tbody>
+  {{range $item := .AllTD}}
+  <tr scope="row" {{ if $item.ID }}id="{{$item.ID}}"{{end}}>
+    <td class="{{$stylecell}}">{{ $item.Caption }}</td>
+    <td>
+      {{ if eq $item.ValueType "href"}}
+        {{template "content_href" $item.Value}}
+      {{ else if eq $item.ValueType "badge"}}
+        {{template "content_badge" $item.Value}}
+      {{ else }}
+        {{ $item.Value }}
+      {{end}}
+    </td>  
+  </tr>
+  {{end}}
+  </tbody>
+</table>
+{{end}}

template/components/form_button.go

@@ -0,0 +1,9 @@
+package components
+
+type FormButton struct {
+	Text       string
+	Icon       string
+	IsSubmit   bool
+	TypeClass  string // type primary, secondary, success, danger, warning, info, light, dark, link, outline-primary
+	IsDisabled bool
+}

template/components/form_button.html

@@ -0,0 +1,20 @@
+{{define "form_button"}}
+    <button class="btn btn-{{.TypeClass}}" {{if eq .IsSubmit true}}type="submit"{{else}}type="button"{{end}} {{if .IsDisabled}}disabled{{end}}>
+        {{.Text}}
+    </button>
+        <!-- tailwind heroicons -->
+        {{if eq .Icon "gear"}}
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="icon">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M9.594 3.94c.09-.542.56-.94 1.11-.94h2.593c.55 0 1.02.398 1.11.94l.213 1.281c.063.374.313.686.645.87.074.04.147.083.22.127.325.196.72.257 1.075.124l1.217-.456a1.125 1.125 0 0 1 1.37.49l1.296 2.247a1.125 1.125 0 0 1-.26 1.431l-1.003.827c-.293.241-.438.613-.43.992a7.723 7.723 0 0 1 0 .255c-.008.378.137.75.43.991l1.004.827c.424.35.534.955.26 1.43l-1.298 2.247a1.125 1.125 0 0 1-1.369.491l-1.217-.456c-.355-.133-.75-.072-1.076.124a6.47 6.47 0 0 1-.22.128c-.331.183-.581.495-.644.869l-.213 1.281c-.09.543-.56.94-1.11.94h-2.594c-.55 0-1.019-.398-1.11-.94l-.213-1.281c-.062-.374-.312-.686-.644-.87a6.52 6.52 0 0 1-.22-.127c-.325-.196-.72-.257-1.076-.124l-1.217.456a1.125 1.125 0 0 1-1.369-.49l-1.297-2.247a1.125 1.125 0 0 1 .26-1.431l1.004-.827c.292-.24.437-.613.43-.991a6.932 6.932 0 0 1 0-.255c.007-.38-.138-.751-.43-.992l-1.004-.827a1.125 1.125 0 0 1-.26-1.43l1.297-2.247a1.125 1.125 0 0 1 1.37-.491l1.216.456c.356.133.751.072 1.076-.124.072-.044.146-.086.22-.128.332-.183.582-.495.644-.869l.214-1.28Z" />
+                <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 1 1-6 0 3 3 0 0 1 6 0Z" />
+            </svg>
+        {{else if eq .Icon "arrow-right"}}
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="icon">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M13.5 4.5 21 12m0 0-7.5 7.5M21 12H3" />
+            </svg>
+        {{else if eq .Icon "plus"}}
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="icon">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M12 4.5v15m7.5-7.5h-15" />
+            </svg>
+        {{end}}
+{{end}}

template/components/form_checkbox.go

@@ -0,0 +1,14 @@
+package components
+
+type FormCheckbox struct {
+	Label       string
+	AllCheckbox []FormCheckboxItem
+}
+
+type FormCheckboxItem struct {
+	ID        string
+	Name      string
+	Value     string
+	Label     string
+	IsChecked bool
+}

template/components/form_checkbox.html

@@ -0,0 +1,11 @@
+{{define "form_checkbox"}}
+<div class="input-container">
+  <label class="form-label">{{.Label}}</label>
+  {{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 $options.IsChecked true}} checked{{end}}>
+    <label class="form-check-label" for="{{$options.ID}}">{{$options.Label}}</label>
+  </div>  
+  {{end}}
+</div>
+{{end}}

template/components/form_input.go

@@ -0,0 +1,13 @@
+package components
+
+type FormInput struct {
+	ID          string
+	Label       string
+	Type        string
+	Placeholder string
+	Value       string
+	Hint        string
+	Error       string
+	IsDisabled  bool
+	IsRequired  bool
+}

template/components/form_input.html

@@ -0,0 +1,18 @@
+{{define "form_input"}}
+<div class="input-container">
+    <label class="form-label" for="{{.ID}}">{{.Label}}</label>
+    <input type="{{.Type}}" id="{{.ID}}" name="{{.ID}}" placeholder="{{.Placeholder}}" class="form-control{{if ne .Error ""}} error{{end}}"
+        {{if eq .IsDisabled true}}
+            disabled
+        {{end}}
+        {{if eq .IsRequired true}}
+            required
+        {{end}}
+        {{if ne .Value ""}}
+            value="{{.Value}}"
+        {{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}}
+</div>
+{{end}}

template/components/form_radio.go

@@ -0,0 +1,15 @@
+package components
+
+type FormRadio struct {
+	Label     string
+	AllRadios []FormRadioItem
+}
+
+type FormRadioItem struct {
+	ID         string
+	Name       string
+	Value      string
+	Label      string
+	IsDisabled bool
+	IsChecked  bool
+}

template/components/form_radio.html

@@ -0,0 +1,11 @@
+{{define "form_radio"}}
+<div class="input-container">
+  <label class="form-label">{{.Label}}</label>
+  {{range $options := .AllRadios}}
+    <div class="form-check{{if eq $options.IsDisabled true}} disabled{{end}}">
+      <input class="form-check-input" type="radio" name="{{$options.Name}}" id="{{$options.ID}}" value="{{$options.Value}}"{{if eq $options.IsDisabled true}} disabled=""{{end}}{{if eq $options.IsChecked true}} checked=""{{end}}>
+      <label class="form-check-label" for="{{$options.ID}}">{{$options.Label}}</label>
+    </div>
+  {{end}}
+</div>
+{{end}}

template/components/form_select.go

@@ -0,0 +1,13 @@
+package components
+
+type FormSelect struct {
+	ID             string
+	SelectedOption FormSelectOption
+	Label          string
+	AllOptions     []FormSelectOption
+}
+
+type FormSelectOption struct {
+	Value   string
+	Caption string
+}

template/components/form_select.html

@@ -0,0 +1,10 @@
+{{define "form_select"}}
+<div class="input-container">
+  <label for="{{.ID}}" class="form-label">{{.Label}}</label>
+  <select class="form-select" id="{{.ID}}" name="{{.ID}}">
+  {{range $options := .AllOptions}}
+      <option value="{{$options.Value}}" {{if eq $options.Value $.SelectedOption.Value }}selected="selected"{{end}}>{{$options.Caption}}</option>
+  {{end}}
+  </select>
+</div>
+{{end}}

template/components/form_switch.go

@@ -0,0 +1,8 @@
+package components
+
+type FormSwitch struct {
+	ID         string
+	Label      string
+	IsChecked  bool
+	IsDisabled bool
+}

template/components/form_switch.html

@@ -0,0 +1,7 @@
+{{define "form_switch"}}
+
+  <div class="form-check form-switch">
+    <input class="form-check-input" type="checkbox" role="switch" name="{{.ID}}" id="{{.ID}}" {{if eq .IsChecked true}} checked{{end}} {{if eq .IsDisabled true}} disabled{{end}}>
+    <label class="form-check-label" for="{{.ID}}">{{.Label}}</label>
+  </div>  
+{{end}}

template/components/form_textarea.go

@@ -0,0 +1,7 @@
+package components
+
+type FormTextarea struct {
+	ID    string
+	Label string
+	Value string
+}

template/components/form_textarea.html

@@ -0,0 +1,6 @@
+{{define "form_textarea"}}
+<div class="input-container">
+  <label for="{{.ID}}" class="form-label">{{.Label}}</label>
+  <textarea class="form-control" id="{{.ID}}" name="{{.ID}}" rows="3">{{.Value}}</textarea>
+</div>
+{{end}}

template/components/page_card.go

@@ -0,0 +1,8 @@
+package components
+
+type PageCard struct {
+	CardTitle    string
+	CardSubTitle string
+	CardBody     string
+	CardLink     string
+}

template/components/page_card.html

@@ -0,0 +1,11 @@
+{{define "page_card"}}
+<div class="card">
+  <div class="card-body">
+    {{if .CardTitle}}<h5 class="card-title">{{.CardTitle}}</h5>{{end}}
+    {{if .CardSubTitle}}<h6 class="card-subtitle mb-2 text-muted">{{.CardSubTitle}}</h6>{{end}}
+    {{if .CardBody}}<p class="card-text">{{.CardBody}}</p>{{end}}
+    {{block "page_card_content" .}}{{end}}
+    {{if .CardLink}}<a href="{{.CardLink}}" class="card-link">Card link</a>{{end}}
+  </div>
+</div>
+{{end}}

template/components/page_footer.html

@@ -0,0 +1,7 @@
+{{define "page_footer"}}
+<footer>
+<script src="/public/app.js"></script>
+</footer>
+<script src="/public/bootstrap/js/popper.min.js"></script>
+<script src="/public/bootstrap/js/bootstrap.min.js"></script>
+{{end}}

template/components/page_head.html

@@ -0,0 +1,11 @@
+{{define "page_head"}}
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>{{.}} | Goffee</title>
+  <link rel="stylesheet" href="/public/style.css">
+  <link rel="icon" href="/public/img/favicon.ico" type="image/x-icon">
+  <link rel="stylesheet" href="/public/bootstrap/css/bootstrap.min.css">
+</head>
+{{end}}

template/components/page_nav.go

@@ -0,0 +1,16 @@
+package components
+
+type PageNav struct {
+	NavClass   string // nav-pills, nav-underline
+	NavItems   []PageNavItem
+	IsVertical bool
+	IsTab      bool
+}
+
+type PageNavItem struct {
+	Text       string
+	Link       string
+	IsDisabled bool
+	IsActive   bool
+	ChildItems []PageNavItem
+}

template/components/page_nav.html

@@ -0,0 +1,23 @@
+{{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 $item.ChildItems) 0}}
+                <li class="nav-item dropdown">
+                    <a href="{{$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>
+                    <ul class="dropdown-menu">
+                        {{ range $item.ChildItems}}
+                            {{template "content_dropdown_item" .}}
+                        {{end}}
+                    </ul>
+                </li>
+            {{else}}
+                <li class="nav-item"><a href="{{$item.Link}}" {{if eq .IsDisabled true}}disabled{{end}} class="nav-link {{if eq .IsActive true}}active{{end}} {{if eq .IsDisabled true}}disabled{{end}}">
+                    {{$item.Text}}
+                </a></li>
+            {{end}}
+
+        {{end}}
+    </ul>
+{{end}}

template/components/page_page.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  {{template "page_head" "Goffee"}}
+  <body>
+    <div class="container">
+    {{block "page_content" .}}
+        <main>
+            <h1>Use this file as base inside cup application</h1>  
+        </main>
+    {{end}}
+    {{template "page_footer"}}
+    </div>  
+  </body>
+</html>

templates.go

@@ -0,0 +1,36 @@
+// Copyright (c) 2024 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 (
+	"embed"
+	"html/template"
+	"io/fs"
+	"strings"
+)
+
+var tmpl *template.Template = nil
+
+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") {
+			paths = append(paths, path)
+		}
+		return nil
+	})
+
+	var pathst []string
+	fs.WalkDir(templates, ".", func(patht string, d fs.DirEntry, err error) error {
+		if strings.Contains(d.Name(), ".html") {
+			pathst = append(pathst, patht)
+		}
+		return nil
+	})
+
+	tmpla := template.Must(template.ParseFS(components, paths...))
+	tmpl = template.Must(tmpla.ParseFS(templates, pathst...))
+}

validator.go

@@ -33,18 +33,14 @@ func (v *Validator) Validate(data map[string]interface{}, rules map[string]inter
 	vr = validationResult{}
 	vr.hasFailed = false
 	res := map[string]string{}
-	for key, val := range data {
-		_, ok := rules[key]
-		if !ok {
-			continue
-		}
-		rls, err := parseRules(rules[key])
+	for rule_key, rule_val := range rules {
+		rls, err := parseRules(rule_val)
 		if err != nil {
 			panic(err.Error())
 		}
-		err = validation.Validate(val, rls...)
+		err = validation.Validate(data[rule_key], rls...)
 		if err != nil {
-			res[key] = fmt.Sprintf("%v: %v", key, err.Error())
+			res[rule_key] = fmt.Sprintf("%v: %v", rule_key, err.Error())
 
 		}
 	}