Implement basic parser endpoint

1 files changed, 79 insertions, 2 deletions

diff --git a/cmd/parser/main.go b/cmd/parser/main.go
index cc0602a..3933935 100644
--- a/cmd/parser/main.go
+++ b/cmd/parser/main.go
@@ -1,7 +1,84 @@
 package main
 
-import "fmt"
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+
+	"github.com/joho/godotenv"
+	"github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/extension"
+	"github.com/yuin/goldmark/parser"
+	"github.com/yuin/goldmark/renderer/html"
+)
+
+var mdParser goldmark.Markdown
+
+func mdServe(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		w.WriteHeader(405)
+		w.Write([]byte("Method Not Allowed"))
+		return
+	}
+
+	err := r.ParseForm()
+	if err != nil {
+		w.WriteHeader(500)
+		w.Write([]byte("Failed to retrieve form data"))
+		return
+	}
+
+	var buf bytes.Buffer
+	
+	log.Print(r.Form)
+	md := r.PostForm.Get("raw")
+	log.Print(md)
+	err = mdParser.Convert([]byte(md), &buf)
+	if err != nil {
+		w.WriteHeader(500)
+		w.Write([]byte("Failed to compile markdown into html"))
+		return
+	}
+
+	w.Write([]byte(md))
+}
 
 func main() {
-	fmt.Printf("Markdown compiler app\n")
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatal("Failed to load env")
+	}
+
+	mdParser = goldmark.New(
+		goldmark.WithExtensions(
+			extension.GFM,
+			extension.Footnote,
+			extension.Typographer,
+		),
+		goldmark.WithParserOptions(
+			parser.WithAutoHeadingID(),
+		),
+		goldmark.WithRendererOptions(
+			html.WithHardWraps(),
+		),
+	)
+
+	router := http.NewServeMux()
+	router.HandleFunc("/", mdServe)
+
+	appPort, err := strconv.ParseUint(os.Getenv("parser_port"), 10, 64)
+	if err != nil {
+		appPort = 5006
+	}
+
+	srv := &http.Server{
+		Addr: fmt.Sprintf(":%d", appPort),
+		Handler: router,
+	}
+
+	err = srv.ListenAndServe()
+	log.Fatal(err)
 }