move stuff around

src/article.rs

@@ -1,4 +1,5 @@
 use chrono::{DateTime, Utc};
+use libxml::tree::{Document, SaveOptions};
 use std::fs::File;
 use std::io::{Error, ErrorKind, Write};
 use std::path::PathBuf;
@@ -9,13 +10,31 @@ pub struct Article {
     pub author: Option<String>,
     pub url: Url,
     pub date: Option<DateTime<Utc>>,
-    pub html: Option<String>,
     pub thumbnail_url: Option<String>,
+    pub document: Option<Document>,
 }
 
 impl Article {
-    pub fn save_html(&self, path: &PathBuf) -> Result<(), Error> {
-        if let Some(ref html) = self.html {
+    pub fn get_content(&self) -> Option<String> {
+        // serialize content
+        let options = SaveOptions {
+            format: false,
+            no_declaration: false,
+            no_empty_tags: true,
+            no_xhtml: false,
+            xhtml: false,
+            as_xml: false,
+            as_html: true,
+            non_significant_whitespace: false,
+        };
+        self.document
+            .as_ref()
+            .map(|doc| doc.to_string_with_options(options))
+    }
+
+    #[allow(dead_code)]
+    pub(crate) fn save_html(&self, path: &PathBuf) -> Result<(), Error> {
+        if let Some(ref html) = self.get_content() {
             if let Ok(()) = std::fs::create_dir_all(path) {
                 let mut file_name = match self.title.clone() {
                     Some(file_name) => file_name.replace('/', "_"),