feat: Add text editor

Use Monaco Editor to create notes. Support syntax highlighting. Store the
language with the note in the database to later support syntax highlighting in
a note web view.

Signed-off-by: Julien Riou <julien@riou.xyz>

src/internal/utils.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
+	"strings"
 )
 
 func ReadConfig(file string, config interface{}) error {
@@ -109,3 +110,10 @@ func ReturnError(logger *slog.Logger, message string, err error) int {
 	}
 	return RC_ERROR
 }
+
+func ToLowerStringSlice(src []string) (dst []string) {
+	for _, s := range src {
+		dst = append(dst, strings.ToLower(s))
+	}
+	return
+}

src/internal/utils_test.go

@@ -2,6 +2,7 @@ package internal
 
 import (
 	"fmt"
+	"slices"
 	"testing"
 )
 
@@ -38,3 +39,49 @@ func TestHumanDuration(t *testing.T) {
 		})
 	}
 }
+
+func TestToLowerStringsSlice(t *testing.T) {
+	input := []string{
+		"Text",
+		"CSS",
+		"Dockerfile",
+		"Go",
+		"HCL",
+		"HTML",
+		"Javascript",
+		"JSON",
+		"Markdown",
+		"Perl",
+		"Python",
+		"Ruby",
+		"Rust",
+		"Shell",
+		"SQL",
+		"YAML",
+	}
+	expected := []string{
+		"text",
+		"css",
+		"dockerfile",
+		"go",
+		"hcl",
+		"html",
+		"javascript",
+		"json",
+		"markdown",
+		"perl",
+		"python",
+		"ruby",
+		"rust",
+		"shell",
+		"sql",
+		"yaml",
+	}
+
+	got := ToLowerStringSlice(input)
+	if slices.Compare(got, expected) != 0 {
+		t.Errorf("got '%s', want '%s'", got, expected)
+	} else {
+		t.Logf("got '%s', want '%s'", got, expected)
+	}
+}