Store dates in the document head

quickpeep_densedoc/src/lib.rs

@@ -19,6 +19,8 @@ pub struct DenseHead {
     pub language: String,
     /// URL to icon of the page. May be empty if none were discovered.
     pub icon: String,
+    /// Datetime of publication (or creation, as a fallback), in seconds since the epoch.
+    pub datetime: Option<i64>,
 }
 
 impl DenseHead {

quickpeep_raker/src/raking/page_extraction.rs

@@ -236,7 +236,7 @@ impl PageExtractionServiceInternal {
             }
         }
 
-        find_page_metadata(root_node.clone())?;
+        let metadata = find_page_metadata(root_node.clone())?;
 
         let mut readability =
             quickpeep_moz_readability::Readability::new_from_node(root_node.clone());
@@ -249,6 +249,11 @@ impl PageExtractionServiceInternal {
             title = readability.metadata.title().to_owned();
         }
 
+        let datetime = metadata
+            .publication_date
+            .or(metadata.creation_date)
+            .map(|dt| dt.timestamp());
+
         let mut document = DenseDocument {
             head: DenseHead {
                 title,
@@ -256,6 +261,7 @@ impl PageExtractionServiceInternal {
                 icon: icon
                     .map(|url| url.as_str().to_owned())
                     .unwrap_or(String::with_capacity(0)),
+                datetime,
             },
             body_content: Vec::with_capacity(0),
             body_remainder: Vec::with_capacity(0),