wrap lines in multiline posts with p tags

front/text/plain/convert.go

@@ -122,5 +122,16 @@ func ToHTML(text string) string {
 		text = strings.ReplaceAll(text, link, fmt.Sprintf(`<a href="%s" target="_blank">%s</a>`, link, link))
 	}
 
-	return text
+	lines := strings.Split(text, "\n")
+	if len(lines) == 1 {
+		return text
+	}
+
+	var b strings.Builder
+	for _, line := range lines {
+		b.WriteString("<p>")
+		b.WriteString(line)
+		b.WriteString("</p>")
+	}
+	return b.String()
 }

front/text/plain/convert_test.go

@@ -143,6 +143,14 @@ func TestToHTML_Plain(t *testing.T) {
 	assert.Equal(t, expected, html)
 }
 
+func TestToHTML_LineBreak(t *testing.T) {
+	post := "this is a line\nthis is another line"
+	expected := `<p>this is a line</p><p>this is another line</p>`
+
+	html := ToHTML(post)
+	assert.Equal(t, expected, html)
+}
+
 func TestToHTML_Link(t *testing.T) {
 	post := `this is a plain post with a link: gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh`
 	expected := `this is a plain post with a link: <a href="gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh" target="_blank">gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh</a>`
@@ -151,6 +159,14 @@ func TestToHTML_Link(t *testing.T) {
 	assert.Equal(t, expected, html)
 }
 
+func TestToHTML_LinkAndLineBreak(t *testing.T) {
+	post := "this is a plain post with a link: gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh\n... and a line break"
+	expected := `<p>this is a plain post with a link: <a href="gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh" target="_blank">gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh</a></p><p>... and a line break</p>`
+
+	html := ToHTML(post)
+	assert.Equal(t, expected, html)
+}
+
 func TestToHTML_LinkStart(t *testing.T) {
 	post := `gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh is a link`
 	expected := `<a href="gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh" target="_blank">gemini://aa.bb.com/cc?dd=ee&ff=gg%20hh</a> is a link`