Отображение html страницы

- Добавлен шаблонизатор jet

- Сделан views для html страниц

- Переработано отображение ошибок, теперь они корректно отображаются

pink_fox_app/go.mod

@@ -3,6 +3,8 @@ module pink_fox
 go 1.24.1
 
 require (
+	github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 // indirect
+	github.com/CloudyKit/jet/v6 v6.3.1 // indirect
 	github.com/bytedance/sonic v1.13.1 // indirect
 	github.com/bytedance/sonic/loader v0.2.4 // indirect
 	github.com/cloudwego/base64x v0.1.5 // indirect

pink_fox_app/go.sum

@@ -1,3 +1,7 @@
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 h1:sR+/8Yb4slttB4vD+b9btVEnWgL3Q00OBTzVT8B9C0c=
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53/go.mod h1:+3IMCy2vIlbG1XG/0ggNQv0SvxCAIpPM5b1nCz56Xno=
+github.com/CloudyKit/jet/v6 v6.3.1 h1:6IAo5Cx21xrHVaR8zzXN5gJatKV/wO7Nf6bfCnCSbUw=
+github.com/CloudyKit/jet/v6 v6.3.1/go.mod h1:lf8ksdNsxZt7/yH/3n4vJQWA9RUq4wpaHtArHhGVMOw=
 github.com/bytedance/sonic v1.13.1 h1:Jyd5CIvdFnkOWuKXr+wm4Nyk2h0yAFsr8ucJgEasO3g=
 github.com/bytedance/sonic v1.13.1/go.mod h1:o68xyaF9u2gvVBuGHPlUVCy+ZfmNNO5ETf1+KgkJhz4=
 github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=

pink_fox_app/src/app/cmd/server.go

@@ -1,16 +1,23 @@
 package cmd
 
 import (
+	"bytes"
 	"database/sql"
 	"fmt"
+	"github.com/CloudyKit/jet/v6"
 	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/render"
+	"io"
 	"net/http"
 	"pink_fox/src/app"
 	c "pink_fox/src/app/config"
 	"pink_fox/src/app/db"
 	l "pink_fox/src/app/logger"
 	"pink_fox/src/app/routes_manager"
+	"pink_fox/src/app/views_manager"
 	"pink_fox/src/routes"
+	"pink_fox/src/views"
+	"runtime/debug"
 )
 
 type Server struct {
@@ -52,13 +59,93 @@ func (it *Server) StartServer(application *app.Application) error {
 		c.String(http.StatusOK, "ok")
 	})
 
-	routes.RegistrationRoutes(routes_manager.NewManager(r, application))
+	r.Use(it.errorHandler(application.Logger))
+
+	err := it.loadTemplates(r)
+	if err != nil {
+		return err
+	}
+
+	tm := views_manager.NewManager()
+	views.RegistrationViews(tm)
+
+	routes.RegistrationRoutes(routes_manager.NewManager(r, application, tm))
 
 	fmt.Printf("Starting http_server at port %d...", application.Conf.Port)
-	err := r.Run(fmt.Sprintf(":%d", application.Conf.Port))
+	err = r.Run(fmt.Sprintf(":%d", application.Conf.Port))
 	if err != nil {
 		return err
 	}
 
 	return nil
 }
+
+func (it *Server) loadTemplates(e *gin.Engine) error {
+	set := jet.NewSet(jet.NewOSFileSystemLoader("views"))
+	renderer := &JetRenderer{set: set}
+	e.HTMLRender = renderer
+
+	return nil
+}
+
+func (it *Server) errorHandler(logger *l.Logger) gin.HandlerFunc {
+	return func(ctx *gin.Context) {
+		it.errorHandlerSetRecovery(ctx)
+		if len(ctx.Errors) > 0 {
+			logger.Error(ctx.Errors[0].Error())
+			ctx.JSON(http.StatusInternalServerError, gin.H{
+				"errors": "Internal Server Error",
+			})
+		}
+	}
+}
+
+func (it *Server) errorHandlerSetRecovery(ctx *gin.Context) {
+	defer func() {
+		if err := recover(); err != nil {
+			_ = ctx.Error(fmt.Errorf("panic: %v\n%s", err, debug.Stack()))
+		}
+	}()
+	ctx.Next()
+}
+
+type JetRenderer struct {
+	set      *jet.Set
+	template string
+	data     any
+}
+
+func (it *JetRenderer) Instance(tpl string, data any) render.Render {
+	it.template = tpl
+	it.data = data
+	return it
+}
+
+func (it *JetRenderer) Render(w http.ResponseWriter) error {
+	tpl, err := it.set.GetTemplate(it.template)
+	if err != nil {
+		return err
+	}
+
+	vars := make(jet.VarMap)
+	if it.data != nil {
+		if v, ok := it.data.(jet.VarMap); ok {
+			vars = v
+		} else {
+			vars.Set("data", it.data)
+		}
+	}
+
+	var buf bytes.Buffer
+	err = tpl.Execute(&buf, vars, nil)
+	if err != nil {
+		return err
+	}
+	_, err = io.Copy(w, &buf)
+	return err
+}
+
+func (it *JetRenderer) WriteContentType(http.ResponseWriter) {
+	// не знаю в каких случаях будет вызван этот метод
+	panic("implement me") // TODO
+}

pink_fox_app/src/app/http_server/response-factory.go

@@ -2,14 +2,19 @@ package http_server
 
 import (
 	"github.com/gin-gonic/gin"
+	"pink_fox/src/app/types"
 )
 
 type ResponseFactory struct {
-	ctx *gin.Context
+	ctx            *gin.Context
+	makeViewObject types.MakeViewObject
 }
 
-func NewResponseFactory(ctx *gin.Context) *ResponseFactory {
-	return &ResponseFactory{ctx: ctx}
+func NewResponseFactory(ctx *gin.Context, makeViewObject types.MakeViewObject) *ResponseFactory {
+	return &ResponseFactory{
+		ctx:            ctx,
+		makeViewObject: makeViewObject,
+	}
 }
 
 func (it *ResponseFactory) String(s string) *StringResponse {
@@ -23,3 +28,7 @@ func (it *ResponseFactory) HtmlError(code int) *HtmlErrorResponse {
 func (it *ResponseFactory) Redirect(url string) *RedirectResponse {
 	return NewRedirectResponse(url, it.ctx)
 }
+
+func (it *ResponseFactory) View(id int16, file string, data any) *ViewResponse {
+	return NewViewResponse(it.ctx, it.makeViewObject, id, file, data)
+}

pink_fox_app/src/app/http_server/response.go

@@ -2,8 +2,10 @@ package http_server
 
 import (
 	"fmt"
+	"github.com/CloudyKit/jet/v6"
 	"github.com/gin-gonic/gin"
 	"net/http"
+	"pink_fox/src/app/types"
 )
 
 type Response interface {
@@ -65,3 +67,29 @@ func (it *RedirectResponse) SetCode(code int) *RedirectResponse {
 func (it *RedirectResponse) Render() {
 	it.ctx.Redirect(it.code, it.to)
 }
+
+type ViewResponse struct {
+	ctx            *gin.Context
+	makeViewObject types.MakeViewObject
+	id             int16
+	file           string
+	data           any
+}
+
+func NewViewResponse(ctx *gin.Context, makeViewObject types.MakeViewObject, id int16, file string, data any) *ViewResponse {
+	return &ViewResponse{
+		ctx:            ctx,
+		makeViewObject: makeViewObject,
+		id:             id,
+		file:           file,
+		data:           data,
+	}
+}
+
+func (it *ViewResponse) Render() {
+	data := make(jet.VarMap)
+	data.Set("vi", it.makeViewObject(it.id))
+	data.Set("it", it.data)
+
+	it.ctx.HTML(http.StatusOK, it.file, data)
+}

pink_fox_app/src/app/routes_manager/routes_manager.go

@@ -5,8 +5,10 @@ import (
 	"github.com/gin-gonic/gin"
 	"net/http"
 	"pink_fox/src/app"
-	"pink_fox/src/app/http_server"
+	hs "pink_fox/src/app/http_server"
 	le "pink_fox/src/app/lerror"
+	"pink_fox/src/app/types"
+	vm2 "pink_fox/src/app/views_manager"
 	"pink_fox/src/dependence"
 	"runtime/debug"
 	"strings"
@@ -16,21 +18,23 @@ type RoutesManager struct {
 	engine      *gin.Engine
 	application *app.Application
 	middlewares []MiddlewareFunc
+	vm          *vm2.ViewsManager
 }
 
-func NewManager(e *gin.Engine, application *app.Application) *RoutesManager {
+func NewManager(e *gin.Engine, application *app.Application, vm *vm2.ViewsManager) *RoutesManager {
 	return &RoutesManager{
 		engine:      e,
 		application: application,
 		middlewares: make([]MiddlewareFunc, 0),
+		vm:          vm,
 	}
 }
 
-type MiddlewareFunc func(*dependence.Container, ActionFunc) (http_server.Response, *le.Error)
+type MiddlewareFunc func(*dependence.Container, ActionFunc) (hs.Response, *le.Error)
 
-type HandlerFunc func(container *dependence.Container) (http_server.Response, *le.Error)
+type HandlerFunc func(container *dependence.Container) (hs.Response, *le.Error)
 
-type ActionFunc func() (http_server.Response, *le.Error)
+type ActionFunc func() (hs.Response, *le.Error)
 
 func (it *RoutesManager) Group(relativePath string, middlewares ...MiddlewareFunc) *Group {
 	return NewGroup(it, relativePath, middlewares...)
@@ -41,18 +45,18 @@ func (it *RoutesManager) Use(middlewares ...MiddlewareFunc) {
 }
 
 func (it *RoutesManager) ANY(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application, it.vm)
 	it.engine.GET(relativePath, handlerForGin)
 	it.engine.POST(relativePath, handlerForGin)
 }
 
 func (it *RoutesManager) GET(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application, it.vm)
 	it.engine.GET(relativePath, handlerForGin)
 }
 
 func (it *RoutesManager) POST(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.application, it.vm)
 	it.engine.POST(relativePath, handlerForGin)
 }
 
@@ -83,36 +87,62 @@ func (it *Group) Use(middlewares ...MiddlewareFunc) {
 }
 
 func (it *Group) ANY(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application, it.routesManager.vm)
 	it.routesManager.engine.GET(it.relativePath+relativePath, handlerForGin)
 	it.routesManager.engine.POST(it.relativePath+relativePath, handlerForGin)
 }
 
 func (it *Group) GET(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application, it.routesManager.vm)
 	it.routesManager.engine.GET(it.relativePath+relativePath, handlerForGin)
 }
 
 func (it *Group) POST(relativePath string, handler HandlerFunc, middlewares ...MiddlewareFunc) {
-	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application)
+	handlerForGin := makeHandlerGin(handler, append(it.middlewares, middlewares...), it.routesManager.application, it.routesManager.vm)
 	it.routesManager.engine.POST(it.relativePath+relativePath, handlerForGin)
 }
 
-func makeHandlerGin(handler HandlerFunc, middlewares []MiddlewareFunc, application *app.Application) gin.HandlerFunc {
+func makeHandlerGin(handler HandlerFunc, middlewares []MiddlewareFunc, application *app.Application, vm *vm2.ViewsManager) gin.HandlerFunc {
 	return func(ctx *gin.Context) {
 		dic := dependence.NewContainer(application, ctx)
+		dic.SetViewManager(castMakeViewObject(dic, vm))
 		defer dic.Close()
-		res, err := pipeline(handler, middlewares, dic)
+		err := execHandlerGin(handler, middlewares, dic, ctx)
 		if err != nil {
 			writeToLog(err, application)
 			showHtmlError(err, application, ctx)
 			return
 		}
-		res.Render()
 	}
 }
 
-func pipeline(endpoint HandlerFunc, middlewares []MiddlewareFunc, di *dependence.Container) (resp http_server.Response, lerr *le.Error) {
+func castMakeViewObject(depend *dependence.Container, vm *vm2.ViewsManager) types.MakeViewObject {
+	return func(id int16) any {
+		obj, err := vm.GetViewObject(id, depend)
+		if err != nil {
+			panic(fmt.Sprintf("шаблон с id=%d не найден", id))
+		}
+		return obj
+	}
+}
+
+func execHandlerGin(handler HandlerFunc, middlewares []MiddlewareFunc, dic *dependence.Container, ctx *gin.Context) *le.Error {
+	res, err := pipeline(handler, middlewares, dic)
+	if err != nil {
+		return err
+	}
+
+	res.Render()
+	if len(ctx.Errors) > 0 {
+		errorGin := ctx.Errors[0]
+		ctx.Errors = make([]*gin.Error, 0)
+		return le.New(errorGin)
+	}
+
+	return nil
+}
+
+func pipeline(endpoint HandlerFunc, middlewares []MiddlewareFunc, di *dependence.Container) (resp hs.Response, lerr *le.Error) {
 	defer func() {
 		if err := recover(); err != nil {
 			resp = nil
@@ -120,7 +150,7 @@ func pipeline(endpoint HandlerFunc, middlewares []MiddlewareFunc, di *dependence
 		}
 	}()
 
-	handler := func() (http_server.Response, *le.Error) {
+	handler := func() (hs.Response, *le.Error) {
 		return endpoint(di)
 	}
 
@@ -133,7 +163,7 @@ func pipeline(endpoint HandlerFunc, middlewares []MiddlewareFunc, di *dependence
 }
 
 func createMiddleware(next ActionFunc, middleware MiddlewareFunc, di *dependence.Container) ActionFunc {
-	return func() (http_server.Response, *le.Error) {
+	return func() (hs.Response, *le.Error) {
 		return middleware(di, next)
 	}
 }
@@ -158,5 +188,5 @@ func showHtmlError(err *le.Error, application *app.Application, ctx *gin.Context
 		}
 	}
 	ctx.Header("Content-Type", "text/html; charset=utf-8")
-	ctx.String(500, fmt.Sprintf("<h1>500 %s</h1>\n%s\n", http.StatusText(500), message))
+	ctx.String(http.StatusInternalServerError, fmt.Sprintf("<h1>%d %s</h1>\n%s\n", http.StatusInternalServerError, http.StatusText(http.StatusInternalServerError), message))
 }

pink_fox_app/src/app/types/types.go

@@ -0,0 +1,3 @@
+package types
+
+type MakeViewObject func(int16) any

pink_fox_app/src/app/views_manager/views_manager.go

@@ -0,0 +1,30 @@
+package views_manager
+
+import (
+	"fmt"
+	"pink_fox/src/dependence"
+)
+
+type ViewsManager struct {
+	list map[int16]ViewsFunc
+}
+
+func NewManager() *ViewsManager {
+	return &ViewsManager{
+		list: make(map[int16]ViewsFunc),
+	}
+}
+
+func (it *ViewsManager) Add(id int16, tplFunc ViewsFunc) {
+	it.list[id] = tplFunc
+}
+
+func (it *ViewsManager) GetViewObject(id int16, depend *dependence.Container) (any, error) {
+	tplFunc, ok := it.list[id]
+	if !ok {
+		return nil, fmt.Errorf("GetViewObject: template id %v not found", id)
+	}
+	return tplFunc(depend), nil
+}
+
+type ViewsFunc func(*dependence.Container) any

pink_fox_app/src/controllers/Html.go

@@ -0,0 +1,25 @@
+package controllers
+
+import (
+	"pink_fox/src/app/http_server"
+	le "pink_fox/src/app/lerror"
+	"pink_fox/src/views"
+)
+
+type HtmlController struct {
+	responseFactory *http_server.ResponseFactory
+}
+
+type HtmlControllerDependence interface {
+	MakeResponseFactory() *http_server.ResponseFactory
+}
+
+func NewHtmlController(depend HtmlControllerDependence) *HtmlController {
+	return &HtmlController{
+		responseFactory: depend.MakeResponseFactory(),
+	}
+}
+
+func (it *HtmlController) IndexAction() (http_server.Response, *le.Error) {
+	return it.responseFactory.View(views.Base, "test.jet", "hello"), nil
+}

pink_fox_app/src/dependence/container.go

@@ -4,12 +4,14 @@ import (
 	"github.com/gin-gonic/gin"
 	"pink_fox/src/app"
 	"pink_fox/src/app/http_server"
+	"pink_fox/src/app/types"
 	repo "pink_fox/src/repositories"
 )
 
 type Container struct {
-	application *app.Application
-	context     *gin.Context
+	application    *app.Application
+	context        *gin.Context
+	makeViewObject types.MakeViewObject
 }
 
 func NewContainer(application *app.Application, context *gin.Context) *Container {
@@ -19,6 +21,10 @@ func NewContainer(application *app.Application, context *gin.Context) *Container
 	}
 }
 
+func (it *Container) SetViewManager(makeViewObject types.MakeViewObject) {
+	it.makeViewObject = makeViewObject
+}
+
 func (it *Container) Close() {
 }
 
@@ -27,7 +33,7 @@ func (it *Container) MakeRequest() *http_server.Request {
 }
 
 func (it *Container) MakeResponseFactory() *http_server.ResponseFactory {
-	return http_server.NewResponseFactory(it.context)
+	return http_server.NewResponseFactory(it.context, it.makeViewObject)
 }
 
 func (it *Container) MakeLinksRepository() repo.LinksRepository {

pink_fox_app/src/routes/registration.go

@@ -1,7 +1,7 @@
 package routes
 
 import (
-	"pink_fox/src/app/http_server"
+	hs "pink_fox/src/app/http_server"
 	le "pink_fox/src/app/lerror"
 	"pink_fox/src/app/routes_manager"
 	"pink_fox/src/controllers"
@@ -12,12 +12,18 @@ func RegistrationRoutes(r *routes_manager.RoutesManager) {
 	r.GET("/", IndexController)
 
 	r.GET("/link/:token", GoController)
+
+	r.GET("/html", HtmlController)
 }
 
-func IndexController(depend *di.Container) (http_server.Response, *le.Error) {
+func HtmlController(depend *di.Container) (hs.Response, *le.Error) {
+	return controllers.NewHtmlController(depend).IndexAction()
+}
+
+func IndexController(depend *di.Container) (hs.Response, *le.Error) {
 	return controllers.NewIndexController(depend).IndexAction()
 }
 
-func GoController(depend *di.Container) (http_server.Response, *le.Error) {
+func GoController(depend *di.Container) (hs.Response, *le.Error) {
 	return controllers.NewGoController().IndexAction(depend)
 }

pink_fox_app/src/views/base.go

@@ -0,0 +1,21 @@
+package views
+
+import (
+	repo "pink_fox/src/repositories"
+)
+
+const Base int16 = 1
+
+type BaseView struct {
+	Title string
+}
+
+type BaseViewInterface interface {
+	MakeLinksRepository() repo.LinksRepository
+}
+
+func NewBase(_ BaseViewInterface) *BaseView {
+	return &BaseView{
+		Title: "Hello World!",
+	}
+}

pink_fox_app/src/views/registration.go

@@ -0,0 +1,16 @@
+package views
+
+import (
+	"pink_fox/src/app/views_manager"
+	"pink_fox/src/dependence"
+)
+
+func RegistrationViews(tm *views_manager.ViewsManager) {
+	tm.Add(Base, MakeBaseView())
+}
+
+func MakeBaseView() func(container *dependence.Container) any {
+	return func(depend *dependence.Container) any {
+		return NewBase(depend)
+	}
+}

pink_fox_app/views/test.jet

@@ -0,0 +1,2 @@
+<h1>{{ vi.Title }}</h1>
+<p>{{ it }}</p>