From cfb31cf6a5a44f8a03e6c6ee677abd36c11ce192 Mon Sep 17 00:00:00 2001
From: Bel LaPointe <lapoba16@wfu.edu>
Date: Sun, 7 Oct 2018 23:06:07 -0600
Subject: [PATCH] Initial server without functionality

---
 server/server.go      | 83 +++++++++++++++++++++++++++++++++++++++++++
 server/server_test.go | 57 +++++++++++++++++++++++++++++
 2 files changed, 140 insertions(+)
 create mode 100644 server/server.go
 create mode 100644 server/server_test.go

diff --git a/server/server.go b/server/server.go
new file mode 100644
index 0000000..a2471ab
--- /dev/null
+++ b/server/server.go
@@ -0,0 +1,83 @@
+package server
+
+import (
+	"net/http"
+	"os"
+	"os/signal"
+	"path"
+	"strings"
+	"syscall"
+)
+
+type Server struct {
+	addr string
+}
+
+func New(addr string) (*Server, error) {
+	return &Server{
+		addr: addr,
+	}, nil
+}
+
+func (s *Server) Serve() error {
+	var err error
+	go func() {
+		port := s.addr
+		if !strings.HasPrefix(port, ":") {
+			port = ":" + port
+		}
+		err = http.ListenAndServe(port, s)
+	}()
+	sigc := make(chan os.Signal)
+	signal.Notify(sigc,
+		syscall.SIGHUP,
+		syscall.SIGINT,
+		syscall.SIGTERM,
+		syscall.SIGQUIT,
+	)
+	<-sigc
+	return err
+}
+
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	switch advance(r) {
+	case "api":
+		s.api(w, r)
+	default:
+		s.bad(w, r)
+	}
+}
+
+func (s *Server) bad(w http.ResponseWriter, r *http.Request) {
+	http.NotFound(w, r)
+}
+
+func (s *Server) api(w http.ResponseWriter, r *http.Request) {
+	switch advance(r) {
+	case "feed":
+		s.feed(w, r)
+	default:
+		s.bad(w, r)
+	}
+}
+
+func (s *Server) feed(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case "GET":
+	case "POST":
+	case "PUT":
+	default:
+		s.bad(w, r)
+	}
+}
+
+func advance(r *http.Request) string {
+	p := path.Clean("/" + r.URL.Path)
+	i := strings.Index(p[1:], "/") + 1
+	if i <= 0 {
+		r.URL.Path = "/"
+		return p[1:]
+	}
+	r.URL.Path = p[i:]
+	return p[1:i]
+}
diff --git a/server/server_test.go b/server/server_test.go
new file mode 100644
index 0000000..aaa505b
--- /dev/null
+++ b/server/server_test.go
@@ -0,0 +1,57 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"syscall"
+	"testing"
+	"time"
+)
+
+const testPort = "39231"
+
+func Test_Server(t *testing.T) {
+	cases := []struct {
+	}{
+		{},
+	}
+
+	for _, _ = range cases {
+		var err error
+		s, err := New(testPort)
+		if err != nil {
+			t.Errorf("failed to create server: %v", err)
+		}
+		go s.Serve()
+		time.Sleep(time.Second * 1)
+		if err := checkStatus("GET", "", http.StatusNotFound); err != nil {
+			t.Errorf(err.Error())
+		}
+		if err := checkStatus("GET", "api", http.StatusNotFound); err != nil {
+			t.Errorf(err.Error())
+		}
+		if err := checkStatus("GET", "api/feed", http.StatusOK); err != nil {
+			t.Errorf(err.Error())
+		}
+		if err := checkStatus("POST", "api/feed", http.StatusOK); err != nil {
+			t.Errorf(err.Error())
+		}
+		if err := checkStatus("PUT", "api/feed", http.StatusOK); err != nil {
+			t.Errorf(err.Error())
+		}
+		syscall.Kill(syscall.Getpid(), syscall.SIGINT)
+	}
+}
+
+func checkStatus(method, path string, code int) error {
+	client := &http.Client{}
+	r, _ := http.NewRequest(method, "http://localhost:"+testPort+"/"+path, nil)
+	resp, err := client.Do(r)
+	if err != nil {
+		return fmt.Errorf("failed to %v server: %v", method, err)
+	}
+	if resp.StatusCode != code {
+		return fmt.Errorf("%s %q did not return %v: %v", method, path, code, resp.StatusCode)
+	}
+	return nil
+}