From 7fbec72c109845ebda4ef61d2ca0b69ffe08f964 Mon Sep 17 00:00:00 2001
From: surdeus <surdeus@gmail.com>
Date: Sun, 25 Feb 2024 22:20:41 +0500
Subject: [PATCH] feat: better naming Case for the definining function and
 added the default handlers.

---
 cmd/test/main.go | 41 ++++++++++++++++++++++++++++++-----------
 method.go        | 11 ++++++++---
 path.go          | 15 +++++++++++++--
 3 files changed, 51 insertions(+), 16 deletions(-)

diff --git a/cmd/test/main.go b/cmd/test/main.go
index 51e3551..78ff752 100644
--- a/cmd/test/main.go
+++ b/cmd/test/main.go
@@ -13,28 +13,47 @@ type GetNotesOptions struct {
 }
 
 var root = bond.Root(bond.Path().
-Def(
+Case(
 	"",
 	bond.StaticFile("index.html"),
-).Def(
+).Case(
 	"hello",
-	bond.Path().Def(
+	bond.Path().Case(
 		// Using the relative redirect to force us to the en.
 		"", bond.Redirect("en", statuses.Found),
-	).Def(
+	).Case(
 		"en", bond.Func(func(c *bond.Context) {
 			c.Printf("Hello, World!")
 		}),
-	).Def(
+	).Case(
 		"ru", bond.Func(func(c *bond.Context) {
 			c.Printf("Привет, Мир!")
 		}),
-	),
-).Def(
+	).Default(bond.Func(func(c *bond.Context){
+		c.SetContentType(contents.Plain)
+		c.Printf(
+			"AbsPath: %q\n" +
+			"Prefix: %q\n" +
+			"Path: %q\n"+
+				"Content-Type: %q\n",
+			c.AbsPath(),
+			c.PathPrefix(),
+			c.Path(),
+			c.ContentType(),
+		)
+		c.Printf("Query:\n")
+		for k, vs := range c.Query() {
+			c.Printf("\t%q:\n", k)
+			for _, v := range vs {
+				c.Printf("\t\t%q\n", v)
+			}
+		}
+	})),
+).Case(
 	"google", bond.Redirect("https://google.com", statuses.Found),
-).Def(
+).Case(
 	"web", bond.StaticDir("./static"),
-).Def(
+).Case(
 	"test", bond.Func(func(c *bond.Context) {
 		c.SetContentType(contents.Plain)
 		c.Printf(
@@ -55,9 +74,9 @@ Def(
 			}
 		}
 	}),
-).Def(
+).Case(
 	"get-notes",
-	bond.Method().Def(
+	bond.Method().Case(
 		methods.Get,
 		bond.Func(func(c *bond.Context) {
 			opts := GetNotesOptions{}
diff --git a/method.go b/method.go
index 620b5af..bc4d4b2 100644
--- a/method.go
+++ b/method.go
@@ -2,7 +2,8 @@ package bond
 
 // The type implements method routing.
 type MethodRouter struct {
-	methodMap map[ReqMethod]Handler
+	methodMap map[ReqMethod] Handler
+	def Handler
 }
 
 // Returns new empty MethodRouter.
@@ -13,7 +14,7 @@ func Method() *MethodRouter {
 }
 
 // Define new handler for the specified method.
-func (mr *MethodRouter) Def(
+func (mr *MethodRouter) Case(
 	method ReqMethod,
 	handler Handler,
 ) *MethodRouter {
@@ -30,7 +31,11 @@ func (mr *MethodRouter) Def(
 func (mr *MethodRouter) Handle(c *Context) {
 	handler, ok := mr.methodMap[c.Method()]
 	if !ok {
-		c.NotFound()
+		if mr.def == nil {
+			c.NotFound()
+		} else {
+			mr.def.Handle(c)
+		}
 		return
 	}
 	handler.Handle(c)
diff --git a/path.go b/path.go
index ffdd5c8..34f8f86 100644
--- a/path.go
+++ b/path.go
@@ -9,6 +9,7 @@ import (
 // The type implements path routing for requests.
 type PathRouter struct {
 	pathMap map[string] Handler
+	def Handler
 }
 
 // Returns new empty PathRouter.
@@ -20,7 +21,7 @@ func Path() *PathRouter {
 
 // Define new handler for the specified path.
 // The defined path must not contain slashes and will panic otherwise.
-func (router *PathRouter) Def(pth string, handler Handler) *PathRouter {
+func (router *PathRouter) Case(pth string, handler Handler) *PathRouter {
 	_, dup := router.pathMap[pth]
 	if dup {
 		panic(DupDefErr)
@@ -55,7 +56,11 @@ func (router *PathRouter) Handle(c *Context) {
 
 	handler, ok := router.pathMap[name]
 	if !ok {
-		c.NotFound()
+		if router.def == nil {
+			c.NotFound()
+		} else {
+			router.def.Handle(c)
+		}
 		return
 	}
 
@@ -63,3 +68,9 @@ func (router *PathRouter) Handle(c *Context) {
 	handler.Handle(c)
 }
 
+// The handler to fall to if no match for paths in the router.
+func (router *PathRouter) Default(h Handler) *PathRouter {
+	router.def = h
+	return router
+}
+