Minor matching algorithm improvement

Add "Clear DB" button to UI

gameyfin/src/main/frontend/views/TestView.tsx

@@ -16,6 +16,17 @@ export default function TestView() {
         });
     }
 
+    function removeGames() {
+        LibraryEndpoint.removeGames().then(() => {
+            setGame(undefined);
+            addToast({
+                title: "Success",
+                description: "Games removed",
+                color: "success"
+            })
+        });
+    }
+
     return (
         <div className="grow justify-center mt-12">
             <div className="flex flex-col items-center gap-6">
@@ -46,6 +57,7 @@ export default function TestView() {
                 <div className="flex flex-row gap-4 items-center">
                     <Input label="Game title" onValueChange={setGameTitle}/>
                     <Button onPress={getGame} size="lg">Match</Button>
+                    <Button onPress={removeGames} size="lg">Clear DB</Button>
                 </div>
                 {game && <GameOverviewCard game={game}></GameOverviewCard>}
                 {game && <>{JSON.stringify(game, null, 2)}</>}

gameyfin/src/main/kotlin/de/grimsi/gameyfin/core/Utils.kt

@@ -51,5 +51,14 @@ class Utils {
     }
 }
 
+/**
+ * Converts a map with nullable values to a map with non-nullable values by filtering out null values
+ */
 @Suppress("UNCHECKED_CAST")
-fun <K, V> Map<K, V?>.filterValuesNotNull() = filterValues { it != null } as Map<K, V>
+fun <K, V> Map<K, V?>.filterValuesNotNull() = filterValues { it != null } as Map<K, V>
+
+/**
+ * Converts a string to an alphanumeric string by removing all non-alphanumeric characters (except whitespaces)
+ * and converting it to lowercase
+ */
+fun String.alphaNumeric() = filter { it.isLetterOrDigit() || it.isWhitespace() }.lowercase()

gameyfin/src/main/kotlin/de/grimsi/gameyfin/games/GameService.kt

@@ -1,5 +1,6 @@
 package de.grimsi.gameyfin.games
 
+import de.grimsi.gameyfin.core.alphaNumeric
 import de.grimsi.gameyfin.core.filterValuesNotNull
 import de.grimsi.gameyfin.core.plugins.management.PluginManagementEntry
 import de.grimsi.gameyfin.core.plugins.management.PluginManagementService
@@ -83,6 +84,10 @@ class GameService(
         gameRepository.delete(game)
     }
 
+    fun deleteAll() {
+        gameRepository.deleteAll()
+    }
+
     private fun getById(id: Long): Game {
         return gameRepository.findByIdOrNull(id) ?: throw IllegalArgumentException("Game with id $id not found")
     }
@@ -110,7 +115,8 @@ class GameService(
     }
 
     /**
-     * Determines the closest matching title from the results and filters out any other results
+     * Determines the closest matching title from the results
+     * Filters the results to only include the best matching title (using an alphanumeric comparison)
      */
     private fun filterResults(
         originalQuery: String,
@@ -121,7 +127,7 @@ class GameService(
 
         log.info { "Best matching title: '$bestMatchingTitle' for '$originalQuery' determined from $availableTitles" }
 
-        return results.filter { it.value.title == bestMatchingTitle }
+        return results.filter { it.value.title.alphaNumeric() == bestMatchingTitle.alphaNumeric() }
     }
 
     /**

gameyfin/src/main/kotlin/de/grimsi/gameyfin/libraries/LibraryEndpoint.kt

@@ -2,12 +2,14 @@ package de.grimsi.gameyfin.libraries
 
 import com.vaadin.hilla.Endpoint
 import de.grimsi.gameyfin.core.Role
+import de.grimsi.gameyfin.games.GameService
 import de.grimsi.gameyfin.games.dto.GameDto
 import jakarta.annotation.security.RolesAllowed
 
 @Endpoint
 class LibraryEndpoint(
-    private val libraryService: LibraryService
+    private val libraryService: LibraryService,
+    private val gameService: GameService
 ) {
     @RolesAllowed(Role.Names.ADMIN)
     fun getAllLibraries(): Collection<LibraryDto> {
@@ -23,4 +25,9 @@ class LibraryEndpoint(
     fun test(testString: String): GameDto {
         return libraryService.test(testString)
     }
+
+    @RolesAllowed(Role.Names.ADMIN)
+    fun removeGames() {
+        return gameService.deleteAll()
+    }
 }