convert markdown to gemtext and display README.md files

")
=> %s here

", httpURL))
")

-----------------------------

")

internal/codeview/codeview.go

@@ -1,6 +1,7 @@
 package codeview
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -9,6 +10,10 @@ import (
 	"net/url"
 	"strings"
 
+	gemtext "git.sr.ht/~kota/goldmark-gemtext"
+	goldmark "github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/extension"
+
 	"github.com/kulak/gemini"
 )
 
@@ -84,10 +89,11 @@ func serveDir(w gemini.ResponseWriter, req *gemini.Request, path string) {
 	}
 
 	var dirRes []struct {
-		Name string `json:"name"`
-		Path string `json:"path"`
-		URL  string `json:"html_url"`
-		Type string `json:"type"`
+		Name   string `json:"name"`
+		Path   string `json:"path"`
+		URL    string `json:"html_url"`
+		Type   string `json:"type"`
+		RawURL string `json:"download_url"`
 	}
 
 	if err := json.Unmarshal(body, &dirRes); err != nil {
@@ -99,7 +105,7 @@ func serveDir(w gemini.ResponseWriter, req *gemini.Request, path string) {
 
 	var content strings.Builder
 	w.WriteStatusMsg(gemini.StatusSuccess, "text/gemini")
-	content.WriteString("# Dir CodeView\n")
+	content.WriteString("# Directory CodeView\n")
 	httpURL := fmt.Sprintf("https://git.travisshears.com/travisshears/personal-gemini-capsule/src/branch/main/%s", filepath)
 	if branch != "" {
 		httpURL = fmt.Sprintf("https://git.travisshears.com/travisshears/personal-gemini-capsule/src/branch/%s/%s", branch, filepath)
@@ -108,6 +114,22 @@ func serveDir(w gemini.ResponseWriter, req *gemini.Request, path string) {
 	}
 	content.WriteString(fmt.Sprintf("This is a code view which proxies my personal git server. On the clearnet the following dir is available:\n=> %s here\n\n", httpURL))
 
+	// print readme page
+	// var readmeURL string
+	for _, file := range dirRes {
+		if file.Type == "file" && file.Name == "README.md" {
+			slog.Info("Found README.md", "file", file)
+			gemtext, err := getRemoteMarkdownFile(file.RawURL)
+			if err != nil {
+				slog.Error("Failed to fetch README.md", "url", file.RawURL, "error", err)
+				continue
+			}
+			content.WriteString("README.md found. The following is a markdown to gemtext conversion with directory listing below\n")
+			content.WriteString(gemtext)
+			content.WriteString("\n\n-----------------------------\n\n")
+		}
+	}
+
 	for _, file := range dirRes {
 		switch file.Type {
 		case "dir":
@@ -123,6 +145,45 @@ func serveDir(w gemini.ResponseWriter, req *gemini.Request, path string) {
 	w.WriteBody([]byte(content.String()))
 }
 
+func getRemoteMarkdownFile(url string) (string, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		slog.Error("Failed to fetch remote markdown file", "url", url, "error", err)
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		slog.Error("Failed to fetch remote markdown file", "url", url, "status", resp.Status)
+		return "", fmt.Errorf("failed to fetch remote markdown file")
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		slog.Error("Failed to read remote markdown file", "url", url, "error", err)
+		return "", err
+	}
+
+	return convertMdToGemtext(string(body)), nil
+}
+
+func convertMdToGemtext(markdown string) string {
+	var buf bytes.Buffer
+	md := goldmark.New(
+		goldmark.WithExtensions(
+			extension.Linkify,
+			extension.Strikethrough,
+		),
+	)
+
+	// set some options
+	// options := []Option{WithHeadingLink(HeadingLinkAuto), WithCodeSpan(CodeSpanMarkdown)}
+
+	md.SetRenderer(gemtext.New())
+	_ = md.Convert([]byte(markdown), &buf) // ignoring errors for example
+	return buf.String()
+}
+
 func serveFile(w gemini.ResponseWriter, req *gemini.Request, path string) {
 	path = strings.TrimPrefix(path, "/codeview/raw/")
 	rawURL := strings.Replace(path, "src", "raw", 1)