refactor: move resource handling to a controller

internal/utils/app_utils.go

@@ -0,0 +1,83 @@
+package utils
+
+import (
+	"errors"
+	"net/url"
+	"strings"
+	"tinyauth/internal/config"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/rs/zerolog"
+)
+
+// Get upper domain parses a hostname and returns the upper domain (e.g. sub1.sub2.domain.com -> sub2.domain.com)
+func GetUpperDomain(urlSrc string) (string, error) {
+	urlParsed, err := url.Parse(urlSrc)
+	if err != nil {
+		return "", err
+	}
+
+	urlSplitted := strings.Split(urlParsed.Hostname(), ".")
+	urlFinal := strings.Join(urlSplitted[1:], ".")
+
+	return urlFinal, nil
+}
+
+func ParseFileToLine(content string) string {
+	lines := strings.Split(content, "\n")
+	users := make([]string, 0)
+
+	for _, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		users = append(users, strings.TrimSpace(line))
+	}
+
+	return strings.Join(users, ",")
+}
+
+func Filter[T any](slice []T, test func(T) bool) (res []T) {
+	for _, value := range slice {
+		if test(value) {
+			res = append(res, value)
+		}
+	}
+	return res
+}
+
+func GetContext(c *gin.Context) (config.UserContext, error) {
+	userContextValue, exists := c.Get("context")
+
+	if !exists {
+		return config.UserContext{}, errors.New("no user context in request")
+	}
+
+	userContext, ok := userContextValue.(*config.UserContext)
+
+	if !ok {
+		return config.UserContext{}, errors.New("invalid user context in request")
+	}
+
+	return *userContext, nil
+}
+
+func GetLogLevel(level string) zerolog.Level {
+	switch strings.ToLower(level) {
+	case "debug":
+		return zerolog.DebugLevel
+	case "info":
+		return zerolog.InfoLevel
+	case "warn":
+		return zerolog.WarnLevel
+	case "error":
+		return zerolog.ErrorLevel
+	case "fatal":
+		return zerolog.FatalLevel
+	case "panic":
+		return zerolog.PanicLevel
+	default:
+		return zerolog.InfoLevel
+	}
+}