package application

import ( "bytes" "io/ioutil" "net/http" "os" "path" "strings"

"github.com/factorysh/microdensity/html"
"github.com/go-chi/chi/v5"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
_html "github.com/yuin/goldmark/renderer/html"
"go.uber.org/zap"

)

func (a *Application) ReadmeHandler(w http.ResponseWriter, r *http.Request) { serviceID := chi.URLParam(r, "serviceID") md := path.Join(a.serviceFolder, serviceID, "README.md") l := a.logger.With(zap.String("path", md)) if strings.Contains(md, "..") { l.Error("Path with ..", zap.String("path", md)) w.WriteHeader(http.StatusBadRequest) return } _, err := os.Stat(md) if err != nil { if os.IsNotExist(err) { l.Warn("README.md not found", zap.Error(err)) w.WriteHeader(http.StatusNotFound) return } l.Error("README.md stat error", zap.Error(err)) w.WriteHeader(http.StatusInternalServerError) return }

raw, err := ioutil.ReadFile(md) //#nosec path assertion at the begining of the function
if err != nil {
	l.Error("README.md read error", zap.Error(err))
	w.WriteHeader(http.StatusInternalServerError)
}

_md := goldmark.New(
	goldmark.WithRendererOptions(
		_html.WithXHTML(),
		_html.WithWriter(_html.DefaultWriter),
	),
	goldmark.WithExtensions(
		extension.GFM, // Github favored markup
		extension.Typographer,
	))

var buffer bytes.Buffer
err = _md.Convert(raw, &buffer)
if err != nil {
	l.Error("README.md markdown error", zap.Error(err))
}

p := html.Page{
	Detail: serviceID,
	Domain: a.Domain,
	Partial: html.Partial{
		Template: buffer.String(),
	},
}
err = p.Render(w)
if err != nil {
	l.Error("html render error", zap.Error(err))
	w.WriteHeader(http.StatusInternalServerError)
	return
}

}