feat: Add chroma support

1 files changed, 25 insertions, 1 deletions

diff --git a/main.go b/main.go
index 55f866e..3d6411d 100644
--- a/main.go
+++ b/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"context"
 	"encoding/json"
 	"flag"
@@ -10,6 +11,10 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/alecthomas/chroma/v2/formatters/html"
+	"github.com/alecthomas/chroma/v2/lexers"
+	"github.com/alecthomas/chroma/v2/styles"
+
 	"git.gabrielgio.me/cerrado/pkg/config"
 	"git.gabrielgio.me/cerrado/pkg/worker"
 	"git.gabrielgio.me/cerrado/templates"
@@ -33,6 +38,7 @@ func run(ctx context.Context) error {
 
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", func(w http.ResponseWriter, _ *http.Request) {
+		slog.Info("Handling index")
 
 		f, err := os.Open(*configPath)
 		if err != nil {
@@ -52,8 +58,26 @@ func run(ctx context.Context) error {
 			return
 		}
 
+		lexer := lexers.Get("json")
+		style := styles.Get("monokailight")
+		formatter := html.New(
+			html.WithLineNumbers(true),
+		)
+		iterator, err := lexer.Tokenise(nil, string(b))
+		if err != nil {
+			slog.Error("Error tokenise", "error", err)
+			return
+		}
+
+		var code bytes.Buffer
+		err = formatter.Format(&code, style, iterator)
+		if err != nil {
+			slog.Error("Error format", "error", err)
+			return
+		}
+
 		hello := &templates.HelloPage{
-			Body: string(b),
+			Body: code.String(),
 		}
 
 		templates.WritePageTemplate(w, hello)