refactor opds to something usable

rusty-library/src/opds/entry.rs

@@ -17,6 +17,7 @@ pub struct Entry {
     pub updated: OffsetDateTime,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub content: Option<Content>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub author: Option<Author>,
     #[serde(rename = "link")]
     pub links: Vec<Link>,

rusty-library/src/opds/feed.rs

@@ -8,7 +8,10 @@ use quick_xml::{
 use serde::Serialize;
 use time::OffsetDateTime;
 
-use super::{author::Author, entry::Entry, error::OpdsError, link::Link};
+use super::{
+    author::Author, entry::Entry, error::OpdsError, link::Link, media_type::MediaType,
+    relation::Relation,
+};
 
 #[derive(Debug, Serialize)]
 #[serde(rename = "feed")]
@@ -26,6 +29,42 @@ pub struct Feed {
 }
 
 impl Feed {
+    pub fn create(
+        now: OffsetDateTime,
+        id: &str,
+        title: &str,
+        self_link: Link,
+        mut additional_links: Vec<Link>,
+        entries: Vec<Entry>,
+    ) -> Self {
+        let author = Author {
+            name: "Thallian".to_string(),
+            uri: "https://code.vanwa.ch/shu/rusty-library".to_string(),
+            email: None,
+        };
+        let mut links = vec![
+            Link {
+                href: "/opds".to_string(),
+                media_type: MediaType::Navigation,
+                rel: Relation::Start,
+                title: Some("Home".to_string()),
+                count: None,
+            },
+            self_link,
+        ];
+        links.append(&mut additional_links);
+
+        Self {
+            title: title.to_string(),
+            id: id.to_string(),
+            updated: now,
+            icon: "favicon.ico".to_string(),
+            author,
+            links,
+            entries,
+        }
+    }
+
     pub fn as_xml(&self) -> Result<String, OpdsError> {
         let xml = to_string(&self)?;
         let mut reader = Reader::from_str(&xml);