Migrate to multiplexer concept

This introduces a layered approach to handling HTTP requests:

- server layer
- path layer
- request layer

The multiplexer file cares about the path layer. It delegates the
request handling to handlers from the request layer.

1 files changed, 89 insertions, 0 deletions

diff --git a/mux.go b/mux.go
new file mode 100644
index 0000000..a351ade
--- /dev/null
+++ b/mux.go
@@ -0,0 +1,89 @@
+
+package main
+
+import (
+	"net/http"
+)
+
+func indexMux(db *Database, templateRoot string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			indexGet(w, r, db, templateRoot)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func recipeMux(db *Database, templateRoot string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			recipeGet(w, r, db, templateRoot)
+		case "POST":
+			recipePost(w, r, db)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func recipeEditMux(db *Database, templateRoot string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			recipeEditGet(w, r, db, templateRoot)
+		case "POST":
+			recipeEditPost(w, r, db)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func recipeImageMux(storage string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			recipeImageGet(w, r, storage)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func addRecipesMux(db *Database, storage string, static string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			addRecipesGet(w, r, static)
+		case "POST":
+			addRecipesPost(w, r, db)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func staticStyleMux(file string, static string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			staticGet(w, r, file, static)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}
+
+func faviconMux(file string, static string) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case "GET":
+			staticGet(w, r, file, static)
+		default:
+			http.Error(w, "Bad Request", 400)
+		}
+	}
+}