126 lines
3.1 KiB
Go
126 lines
3.1 KiB
Go
// Copyright 2025-present Gustavo "Guz" L. de Mello
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// Copyright 2025-present The Lored.dev Contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package smalltrip
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import (
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"fmt"
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"io"
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"log/slog"
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"net/http"
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"reflect"
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"runtime"
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"code.capytal.cc/loreddev/smalltrip/middleware"
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"code.capytal.cc/loreddev/smalltrip/multiplexer"
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)
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type Router interface {
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multiplexer.Multiplexer
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Use(middleware.Middleware)
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}
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type router struct {
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mux multiplexer.Multiplexer
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mws []middleware.Middleware
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log *slog.Logger
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}
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var _ Router = (*router)(nil)
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func NewRouter(options ...Option) Router {
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r := &router{
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mux: http.NewServeMux(),
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mws: []middleware.Middleware{},
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log: slog.New(slog.NewTextHandler(io.Discard, &slog.HandlerOptions{})).WithGroup("smalltrip-router"),
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}
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for _, option := range options {
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option(r)
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}
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return r
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}
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func (router *router) HandleFunc(pattern string, handler func(http.ResponseWriter, *http.Request)) {
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log := router.log.With(slog.String("pattern", pattern), slog.String("handler", getValueType(handler)))
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log.Info("Adding route")
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var hf http.Handler = http.HandlerFunc(handler)
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for _, m := range router.mws {
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log.Debug("Wrapping with middleware", slog.String("middleware", getValueType(m)))
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hf = m(hf)
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}
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router.mux.Handle(pattern, hf)
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}
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func (router *router) Handle(pattern string, handler http.Handler) {
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log := router.log.With(slog.String("pattern", pattern), slog.String("handler", getValueType(handler)))
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log.Info("Adding route")
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for _, m := range router.mws {
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log.Debug("Wrapping with middleware", slog.String("middleware", getValueType(m)))
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handler = m(handler)
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}
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router.mux.Handle(pattern, handler)
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}
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func (router *router) Use(m middleware.Middleware) {
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router.log.Info("Middleware added", slog.String("middleware", getValueType(m)))
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if router.mws == nil {
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router.mws = []middleware.Middleware{}
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}
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router.mws = append(router.mws, m)
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}
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func (router *router) Handler(r *http.Request) (http.Handler, string) {
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return router.mux.Handler(r)
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}
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func (router *router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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router.mux.ServeHTTP(w, r)
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}
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func getValueType[T any](value T) (name string) {
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defer func() {
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if rc := recover(); rc != nil {
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name = fmt.Sprintf("%T", value)
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}
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}()
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v := reflect.ValueOf(value)
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if v.Kind() == reflect.Pointer {
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return getValueType(v.Elem().Interface())
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}
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if v.Kind() == reflect.Func {
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fc := runtime.FuncForPC(v.Pointer())
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if fc != nil {
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return fc.Name()
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}
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}
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if p, n := v.Type().PkgPath(), v.Type().Name(); p != "" && n != "" {
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return fmt.Sprintf("%s.%s", p, n)
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}
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return fmt.Sprintf("%T", value)
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}
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