Add "Clear search history" entry (#310)

app/src/main/kotlin/it/vfsfitvnm/vimusic/Database.kt

@@ -114,6 +114,12 @@ interface Database {
     @Query("SELECT * FROM SearchQuery WHERE query LIKE :query ORDER BY id DESC")
     fun queries(query: String): Flow<List<SearchQuery>>
 
+    @Query("SELECT COUNT (*) FROM SearchQuery")
+    fun queriesCount(): Flow<Int>
+
+    @Query("DELETE FROM SearchQuery")
+    fun clearQueries()
+
     @Query("SELECT * FROM Song WHERE id = :id")
     fun song(id: String): Flow<Song?>
 

app/src/main/kotlin/it/vfsfitvnm/vimusic/ui/screens/settings/OtherSettingsScreen.kt

@@ -21,6 +21,7 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.BasicText
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -31,8 +32,10 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import it.vfsfitvnm.route.RouteHandler
+import it.vfsfitvnm.vimusic.Database
 import it.vfsfitvnm.vimusic.LocalPlayerAwarePaddingValues
 import it.vfsfitvnm.vimusic.R
+import it.vfsfitvnm.vimusic.query
 import it.vfsfitvnm.vimusic.ui.components.TopAppBar
 import it.vfsfitvnm.vimusic.ui.screens.SettingsDescription
 import it.vfsfitvnm.vimusic.ui.screens.SettingsEntry
@@ -45,6 +48,7 @@ import it.vfsfitvnm.vimusic.utils.isIgnoringBatteryOptimizations
 import it.vfsfitvnm.vimusic.utils.isInvincibilityEnabledKey
 import it.vfsfitvnm.vimusic.utils.rememberPreference
 import it.vfsfitvnm.vimusic.utils.semiBold
+import kotlinx.coroutines.Dispatchers
 
 @ExperimentalAnimationApi
 @Composable
@@ -59,6 +63,10 @@ fun OtherSettingsScreen() {
             val context = LocalContext.current
             val (colorPalette, typography) = LocalAppearance.current
 
+            val queriesCount by remember {
+                Database.queriesCount()
+            }.collectAsState(initial = 0, context = Dispatchers.IO)
+
             var isInvincibilityEnabled by rememberPreference(isInvincibilityEnabledKey, false)
 
             var isIgnoringBatteryOptimizations by remember {
@@ -100,6 +108,23 @@ fun OtherSettingsScreen() {
                         .padding(all = 16.dp)
                 )
 
+                SettingsEntryGroupText(title = "SEARCH HISTORY")
+
+                SettingsEntry(
+                    title = "Clear search history",
+                    text = if (queriesCount > 0) {
+                        "Delete $queriesCount search queries"
+                    } else {
+                        "History is empty"
+                    },
+                    isEnabled = queriesCount > 0,
+                    onClick = {
+                        query {
+                            Database.clearQueries()
+                        }
+                    }
+                )
+
                 SettingsEntryGroupText(title = "SERVICE LIFETIME")
 
                 SettingsGroupDescription(text = "If battery optimizations are applied, the playback notification can suddenly disappear when paused.")