ilk

svc/internal/mailer/config.go

@@ -0,0 +1,50 @@
+package mailer
+
+import (
+	"os"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	Host     string
+	Port     int
+	Username string
+	Password string
+	From     string
+	StartTLS bool
+}
+
+func ConfigFromEnv() (Config, error) {
+	var cfg Config
+
+	cfg.Host = strings.TrimSpace(os.Getenv("SMTP_HOST"))
+	cfg.Username = strings.TrimSpace(os.Getenv("SMTP_USERNAME"))
+	cfg.Password = os.Getenv("SMTP_PASSWORD")
+	cfg.From = strings.TrimSpace(os.Getenv("SMTP_FROM"))
+
+	portStr := strings.TrimSpace(os.Getenv("SMTP_PORT"))
+	if portStr == "" {
+		cfg.Port = 587
+	} else {
+		p, err := strconv.Atoi(portStr)
+		if err != nil {
+			return Config{}, err
+		}
+		cfg.Port = p
+	}
+
+	startTLS := strings.TrimSpace(os.Getenv("SMTP_STARTTLS"))
+	if startTLS == "" {
+		cfg.StartTLS = true
+	} else {
+		cfg.StartTLS = strings.EqualFold(startTLS, "true") || startTLS == "1"
+	}
+
+	// minimal validation
+	if cfg.Host == "" || cfg.Username == "" || cfg.Password == "" || cfg.From == "" || cfg.Port <= 0 {
+		return Config{}, ErrInvalidConfig
+	}
+
+	return cfg, nil
+}