[improve] set game dir on client -> updates Play/Install button based on games existing

crates/lanspread-db/src/db.rs

@@ -29,6 +29,8 @@ pub struct Game {
     pub size: u64,
     /// thumbnail image
     pub thumbnail: Option<Bytes>,
+    /// only relevant for client (yeah... I know)
+    pub installed: bool,
 }
 
 impl fmt::Debug for Game {
@@ -76,7 +78,7 @@ pub struct GameDB {
 
 impl GameDB {
     #[must_use]
-    pub fn new() -> Self {
+    pub fn empty() -> Self {
         GameDB {
             games: HashMap::new(),
         }
@@ -84,7 +86,7 @@ impl GameDB {
 
     #[must_use]
     pub fn from(games: Vec<Game>) -> Self {
-        let mut db = GameDB::new();
+        let mut db = GameDB::empty();
         for game in games {
             db.games.insert(game.id.clone(), game);
         }
@@ -99,6 +101,14 @@ impl GameDB {
         self.games.get(id.as_ref())
     }
 
+    #[must_use]
+    pub fn get_mut_game_by_id<S>(&mut self, id: S) -> Option<&mut Game>
+    where
+        S: AsRef<str>,
+    {
+        self.games.get_mut(id.as_ref())
+    }
+
     #[must_use]
     pub fn get_game_by_name(&self, name: &str) -> Option<&Game> {
         self.games.values().find(|game| game.name == name)
@@ -110,10 +120,16 @@ impl GameDB {
         games.sort_by(|a, b| a.name.cmp(&b.name));
         games
     }
+
+    pub fn set_all_uninstalled(&mut self) {
+        for game in self.games.values_mut() {
+            game.installed = false;
+        }
+    }
 }
 
 impl Default for GameDB {
     fn default() -> Self {
-        Self::new()
+        Self::empty()
     }
 }