From e26dee007f14bc9768daba7d855b2ded2b0014b3 Mon Sep 17 00:00:00 2001
From: surdeus <surdeus@gmail.com>
Date: Thu, 7 Dec 2023 12:29:57 +0300
Subject: [PATCH] Init.

---
 .gitignore       |  4 ++++
 cmd/test/main.go | 37 ++++++++++++++++++++++++++++++++
 errors.go        |  9 ++++++++
 go.mod           |  3 +++
 handler.go       | 25 +++++++++++++++++++++
 readme.md        |  5 +++++
 router.go        | 56 ++++++++++++++++++++++++++++++++++++++++++++++++
 taskfile.yml     |  7 ++++++
 8 files changed, 146 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 cmd/test/main.go
 create mode 100644 errors.go
 create mode 100644 go.mod
 create mode 100644 handler.go
 create mode 100644 readme.md
 create mode 100644 router.go
 create mode 100644 taskfile.yml

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a741b13
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+*.exe
+exe
+*.vim
+test
diff --git a/cmd/test/main.go b/cmd/test/main.go
new file mode 100644
index 0000000..785f1e8
--- /dev/null
+++ b/cmd/test/main.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+	"github.com/omnipunk/bond"
+)
+
+var root = bond.Mux().
+Def(
+	"",
+	bond.ContextFunc(func(c *bond.Context){
+		c.W.Write([]byte("This is the index page"))
+	}),
+).Def(
+	"hello",
+	bond.Mux().Def(
+		"en",
+		bond.ContextFunc(func(c *bond.Context){
+			c.W.Write([]byte("Hello, World!"))
+		}),
+	).Def(
+		"ru",
+		bond.ContextFunc(func(c *bond.Context){
+			c.W.Write([]byte("Привет, Мир!"))
+		}),
+	),
+)
+
+func main() {
+	srv := bond.Server{
+		Addr: ":10800",
+		Handler: root,
+	}
+	err := srv.ListenAndServe()
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/errors.go b/errors.go
new file mode 100644
index 0000000..e78a765
--- /dev/null
+++ b/errors.go
@@ -0,0 +1,9 @@
+package bond
+
+import (
+	"errors"
+)
+
+var (
+	DupDefErr = errors.New("duplicate route define")
+)
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..20a078e
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/omnipunk/bond
+
+go 1.21.3
diff --git a/handler.go b/handler.go
new file mode 100644
index 0000000..1c54872
--- /dev/null
+++ b/handler.go
@@ -0,0 +1,25 @@
+package bond
+
+import (
+	"net/http"
+)
+
+type Request = http.Request
+type ResponseWriter = http.ResponseWriter
+type HandlerFunc = http.HandlerFunc
+type Handler = http.Handler
+type Server = http.Server
+
+type Context struct {
+	R *Request
+	W ResponseWriter
+}
+
+type ContextFunc func(*Context)
+func (fn ContextFunc) ServeHTTP(w ResponseWriter, r *Request) {
+	fn(&Context{
+		R: r,
+		W: w,
+	})
+}
+
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..657ada6
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,5 @@
+# bond
+
+Golang library to easily write backend and connect
+it to the frontend.
+
diff --git a/router.go b/router.go
new file mode 100644
index 0000000..2d2c7f9
--- /dev/null
+++ b/router.go
@@ -0,0 +1,56 @@
+package bond
+
+import (
+	"net/http"
+	"strings"
+	"fmt"
+	"path"
+)
+
+type Router struct {
+	pathMap map[string] Handler
+}
+
+func Mux() *Router {
+	ret := &Router{}
+	ret.pathMap = map[string] Handler{}
+	return ret
+}
+
+func (router *Router) Def(pth string, handler Handler) *Router {
+	_, dup := router.pathMap[pth]
+	if dup {
+		panic(DupDefErr)
+	}
+	router.pathMap[pth] = handler
+	return router
+}
+
+func (router *Router) ServeHTTP(w ResponseWriter, r *Request) {
+	pth := r.URL.Path
+	pth = path.Clean(pth)
+	pths := strings.SplitN(pth, "/", 3)
+
+	var name string
+	if len(pths) > 1 {
+		name = pths[1]
+	}
+	name, _ = strings.CutSuffix(name, "/")
+
+	prefix := "/"
+	if pth != "/" {
+		prefix = path.Clean("/" + name)
+	}
+
+	fmt.Printf("Path: %q\n", r.URL.Path)
+	fmt.Printf("%q %q %q %q\n", pth, prefix, pths, name)
+	handler, ok := router.pathMap[name]
+	if !ok {
+		http.NotFound(w, r)
+		return
+	}
+
+	r.URL.Path = pth
+	http.StripPrefix(prefix, handler).ServeHTTP(w, r)
+}
+
diff --git a/taskfile.yml b/taskfile.yml
new file mode 100644
index 0000000..b6ca3f8
--- /dev/null
+++ b/taskfile.yml
@@ -0,0 +1,7 @@
+version: 3
+
+tasks:
+  btest:
+    cmds:
+      - go build -o ./test ./cmd/test/ 
+