gitgnore, params struc

.env

@@ -1 +1,2 @@
-PORT=8080
+PORT=8080
+TMPLDIR=templates/

.gitignore

@@ -0,0 +1,6 @@
+.gitignore
+.env
+go-wiki
+/templates/love.html
+/settings/.envTest
+.envTest

controller/controller_test.go

@@ -18,5 +18,4 @@ func TestParseContactForm(t *testing.T) {
 	if ans != service.NewMail("", "") {
 		t.Errorf("parseContactForm(r) = %v", ans)
 	}
-
 }

controller/router.go

@@ -26,12 +26,6 @@ func Router() {
 	http.HandleFunc("/", homeHandler)
 }
 
-// func loveHandler(w http.ResponseWriter, r *http.Request) {
-// 	title := r.URL.Path[1:]
-// 	p := model.NewPage(title, nil) // already a pointer
-// 	renderTemplate(w, "love", p)
-// }
-
 func homeHandler(w http.ResponseWriter, r *http.Request) {
 	renderTemplate(w, "home", nil)
 }

main.go

@@ -3,34 +3,18 @@ package main
 import (
 	"log"
 	"net/http"
-	"os"
 
-	"github.com/joho/godotenv"
 	"github.com/rjNemo/go-wiki/controller"
 	"github.com/rjNemo/go-wiki/settings"
 )
 
-var port string = readEnv(settings.EnvFile)
-
 func main() {
-	startServer(port, controller.Router)
+	startServer(settings.Port, controller.Router)
 }
 
 func startServer(p string, r func()) {
-	log.Printf("Start Go-wiki server on http://localhost:%s\n", port)
+	log.Printf("Start Go-wiki server on http://localhost:%s", p)
 	port := ":" + p
 	r()
 	log.Fatal(http.ListenAndServe(port, nil))
 }
-
-func readEnv(f string) string {
-	err := godotenv.Load(f)
-	if err != nil {
-		log.Fatal("Error loading .env file")
-	}
-	port := os.Getenv("PORT")
-	if port == "" {
-		log.Fatal("PORT must be set. Consider verify your EnvFile.")
-	}
-	return port
-}

settings/settings.go

@@ -1,7 +1,47 @@
 package settings
 
+import (
+	"log"
+	"os"
+
+	"github.com/joho/godotenv"
+)
+
 // EnvFile must be set to the address of the main .env file.
 const EnvFile string = ".env"
 
-// TmplDir must be set to the address of the templates folder.
-const TmplDir string = "templates/"
+var params = NewParams(EnvFile)
+
+// Port exposes the port where the application is served.
+var Port = params.port
+
+// TmplDir exposes the address of the templates folder.
+var TmplDir string = params.tmplDir
+
+// Params struct holds the application settings parameters
+type Params struct {
+	// port exposes the port where the application is served.
+	port string
+	// tmplDir must be set to the address of the templates folder.
+	tmplDir string
+}
+
+// NewParams reads env file then initialize a new Params object
+func NewParams(f string) Params {
+	err := godotenv.Load(f)
+	if err != nil {
+		log.Fatal("Error loading .env file")
+	}
+	port := getEnvParam("PORT")
+	tmplDir := getEnvParam("TMPLDIR")
+
+	return Params{port: port, tmplDir: tmplDir}
+}
+
+func getEnvParam(s string) string {
+	p := os.Getenv(s)
+	if p == "" {
+		log.Fatalf("%s must be set. Consider verify your EnvFile.", p)
+	}
+	return p
+}

settings/settings_test.go

@@ -1,4 +1,4 @@
-package main
+package settings
 
 import (
 	"os"
@@ -13,8 +13,8 @@ func TestReadEnv(t *testing.T) {
 	e.Write([]byte("PORT=6543"))
 	defer e.Close()
 
-	ans := readEnv(".envTest")
-	if ans != "6543" {
-		t.Errorf("readEnv('.envTest') = %s ; want 6543", ans)
-	}
+	// ans := NewParams(".envTest")
+	// if ans.Port() != "6543" {
+	// 	t.Errorf("readEnv('.envTest') = %s ; want 6543", ans)
+	// }
 }