From b2be864c5d3c6e50a4c0a1c88b6e721c7658aa54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pedro=20P=C3=A9rez?= <hola@pedroperez.dev>
Date: Sun, 10 Nov 2024 00:40:45 +0100
Subject: [PATCH] add LoadEnvFile and Slugify functions to utils package

---
 utils/utils.go | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/utils/utils.go b/utils/utils.go
index 69e1411..5f9b6ce 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -1,9 +1,16 @@
 package utils
 
 import (
+	"bufio"
 	"fmt"
+	"golang.org/x/text/transform"
+	"golang.org/x/text/unicode/norm"
 	"log/slog"
+	"os"
+	"regexp"
+	"strings"
 	"time"
+	"unicode"
 )
 
 func CorrectTimezone(timeStamp time.Time) time.Time {
@@ -26,3 +33,55 @@ func GetBoolFromString(s string) bool {
 	}
 	return false
 }
+
+func LoadEnvFile(filename string) error {
+	file, err := os.Open(filename)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if len(line) == 0 || strings.HasPrefix(line, "#") {
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		value := strings.TrimSpace(parts[1])
+		os.Setenv(key, value)
+	}
+	return scanner.Err()
+}
+
+func Slugify(s string) string {
+	s = strings.ToLower(s)
+
+	t := transform.Chain(norm.NFD, transform.RemoveFunc(isMn), norm.NFC)
+	s, _, _ = transform.String(t, s)
+
+	s = strings.ReplaceAll(s, " ", "-")
+
+	var b strings.Builder
+	for _, r := range s {
+		if (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') || r == '-' {
+			b.WriteRune(r)
+		}
+	}
+	s = b.String()
+
+	re := regexp.MustCompile(`-+`)
+	s = re.ReplaceAllString(s, "-")
+
+	s = strings.Trim(s, "-")
+
+	return s
+}
+
+func isMn(r rune) bool {
+	return unicode.Is(unicode.Mn, r)
+}