Filter out secondary IDs that also appear as primary IDs

src/wiki.rs

@@ -1,4 +1,4 @@
-use std::collections::{BTreeMap, BTreeSet, HashMap};
+use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 
 use once_cell::sync::Lazy;
 use regex::Regex;
@@ -92,6 +92,12 @@ async fn is_game_article(query: &str) -> Result<bool, Error> {
     Ok(false)
 }
 
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+pub struct PrimaryIds {
+    pub steam: HashSet<u32>,
+    pub gog: HashSet<u64>,
+}
+
 impl WikiCache {
     pub async fn flag_recent_changes(&mut self, meta: &mut WikiMetaCache) -> Result<(), Error> {
         struct RecentChange {
@@ -379,6 +385,21 @@ impl WikiCache {
 
         Ok(())
     }
+
+    pub fn primary_ids(&self) -> PrimaryIds {
+        let mut out = PrimaryIds::default();
+
+        for info in self.0.values() {
+            if let Some(id) = info.steam {
+                out.steam.insert(id);
+            }
+            if let Some(id) = info.gog {
+                out.gog.insert(id);
+            }
+        }
+
+        out
+    }
 }
 
 #[derive(Debug, Default, Clone, serde::Serialize, serde::Deserialize)]