Added config file support

config.go

@@ -1,33 +1,33 @@
-package main
-
-import (
-	"encoding/json"
-	"os"
-)
-
-// For config file
-type Config struct {
-	SMTPServer   string `json:"smtp_server"`
-	SMTPPort     int    `json:"smtp_port"`
-	SMTPUsername string `json:"smtp_username"`
-	SMTPPassword string `json:"smtp_password"`
-	FromEmail    string `json:"from_email"`
-}
-
-func loadConfig(filePath string) (Config, error) {
-	var config Config
-
-	file, err := os.Open(filePath)
-	if err != nil {
-		return config, err
-	}
-	defer file.Close()
-
-	decoder := json.NewDecoder(file)
-	err = decoder.Decode(&config)
-	if err != nil {
-		return config, err
-	}
-
-	return config, nil
-}
+package main
+
+import (
+	"encoding/json"
+	"os"
+)
+
+// For config file
+type Config struct {
+	SMTPServer   string `json:"smtp_server"`
+	SMTPPort     int    `json:"smtp_port"`
+	SMTPUsername string `json:"smtp_username"`
+	SMTPPassword string `json:"smtp_password"`
+	FromEmail    string `json:"from_email"`
+}
+
+func loadConfig(filePath string) (Config, error) {
+	var config Config
+
+	file, err := os.Open(filePath)
+	if err != nil {
+		return config, err
+	}
+	defer file.Close()
+
+	decoder := json.NewDecoder(file)
+	err = decoder.Decode(&config)
+	if err != nil {
+		return config, err
+	}
+
+	return config, nil
+}