From 58e868de808d40b9dcf17f6b885a76fb4b65fc8c Mon Sep 17 00:00:00 2001
From: Arnas Udovicius <zordsdavini@gmail.com>
Date: Tue, 23 Aug 2022 14:58:18 +0300
Subject: [PATCH] try to convert markdown to gemtext

---
 formatter.go | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 go.mod       |  1 +
 go.sum       |  2 ++
 3 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/formatter.go b/formatter.go
index 648ab06..154bdb8 100644
--- a/formatter.go
+++ b/formatter.go
@@ -1,12 +1,50 @@
 package main
 
 import (
+	"bufio"
+	"bytes"
 	"errors"
+	"fmt"
+	"io"
 	"net/url"
 	"sort"
 	"strings"
+
+	"github.com/n0x1m/md2gmi/mdproc"
+	"github.com/n0x1m/md2gmi/pipe"
 )
 
+func source(r io.Reader) pipe.Source {
+	return func() chan pipe.StreamItem {
+		data := make(chan pipe.StreamItem)
+		s := bufio.NewScanner(r)
+
+		go func() {
+			i := 0
+
+			for s.Scan() {
+				data <- pipe.NewItem(i, s.Bytes())
+				i++
+			}
+			close(data)
+		}()
+
+		return data
+	}
+}
+
+func sink(w *bytes.Buffer) pipe.Sink {
+	return func(dest chan pipe.StreamItem) {
+		for b := range dest {
+			_, err := fmt.Fprintf(w, string(b.Payload()))
+			if err != nil {
+				fmt.Println(err)
+			}
+
+		}
+	}
+}
+
 func (fileContent *FileContent) FormatContent() string {
 	content := fileContent.Content
 	badChars := make(map[string]string)
@@ -19,7 +57,13 @@ func (fileContent *FileContent) FormatContent() string {
 		content = strings.ReplaceAll(content, k, v)
 	}
 
-	return content
+	var writer bytes.Buffer
+	s := pipe.New()
+	s.Use(mdproc.Preprocessor())
+	s.Use(mdproc.FormatLinks)
+	s.Handle(source(strings.NewReader(content)), sink(&writer))
+
+	return writer.String()
 }
 
 func (file *TreeFile) CategoriesAsUrl() string {
diff --git a/go.mod b/go.mod
index f30c5de..531231e 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ go 1.18
 require (
 	git.sr.ht/~adnano/go-gemini v0.2.3
 	github.com/flosch/pongo2/v6 v6.0.0
+	github.com/n0x1m/md2gmi v1.0.0
 	google.golang.org/grpc v1.48.0
 	google.golang.org/protobuf v1.28.1
 )
diff --git a/go.sum b/go.sum
index a4a5144..9f031c1 100644
--- a/go.sum
+++ b/go.sum
@@ -51,6 +51,8 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/n0x1m/md2gmi v1.0.0 h1:T4FTIjojSutOvyh7okIO7N59sk7KD9XyQMx35JX5jjA=
+github.com/n0x1m/md2gmi v1.0.0/go.mod h1:q5iY7/I5QlC5bUrqmkXVA2FR2HOB9+PmqDhpCNHF/vc=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=