Updated the recipe filtering so its more efficient

app/src/main/java/xyz/pixelatedw/recipe/ui/components/MainScreen.kt

@@ -36,6 +36,7 @@ import xyz.pixelatedw.recipe.MainActivity
 import xyz.pixelatedw.recipe.R
 import xyz.pixelatedw.recipe.data.RecipeWithTags
 import xyz.pixelatedw.recipe.data.RecipesView
+import xyz.pixelatedw.recipe.data.TagFilter
 import java.io.File
 
 
@@ -46,6 +47,7 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 	val search = view.search.collectAsState()
 	val filters = view.tagFilters.collectAsState()
 
+	var activeRecipes = remember { recipes.value }
 	var activeTags = 0
 
 	val navController = rememberNavController()
@@ -54,42 +56,6 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 	var openTagFilterDialog by remember { mutableStateOf(false) }
 	var selectedEntries by remember { mutableStateOf(listOf<RecipeWithTags>()) }
 
-	val isInSearch = isInSearch@{ entry: RecipeWithTags ->
-		val isSearchEmpty = search.value == null || search.value!!.isEmpty()
-		val hasTitle = entry.recipe.title.contains(search.value.orEmpty(), ignoreCase = true)
-		val hasTags = entry.tags.stream()
-			.filter { tag -> tag.name.contains(search.value.orEmpty(), ignoreCase = true) }
-			.count() > 0
-
-		if (!isSearchEmpty && !hasTitle && !hasTags) {
-			return@isInSearch false
-		}
-
-		val totalFilters = filters.value.stream().filter { f -> f.checked }.count()
-		var checkedFilters = 0
-
-		for (filter in filters.value) {
-			if (filter.checked) {
-				val hasTagFilters = entry.tags.isNotEmpty() && entry.tags.stream()
-					.filter { tag -> tag.name.contains(filter.tag, ignoreCase = true) }
-					.count() > 0
-
-				if (hasTagFilters) {
-					checkedFilters += 1
-				} else {
-					checkedFilters -= 1
-				}
-			}
-		}
-
-		val hasTagFilters = checkedFilters >= totalFilters
-		if (totalFilters > 0 && !hasTagFilters) {
-			return@isInSearch false
-		}
-
-		true
-	}
-
 	NavHost(
 		navController = navController,
 		startDestination = "list"
@@ -108,7 +74,11 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
                             .weight(0.7f)
                             .padding(end = 4.dp),
 						value = search.value.orEmpty(),
-						onValueChange = { search -> view.setSearch(search) },
+						onValueChange = { search ->
+							view.setSearch(search)
+							activeRecipes =
+								recipes.value.filter { filterRecipe(it, search, filters.value) }
+						},
 					)
 					// Tags / Delete
 					if (selectedEntries.isNotEmpty()) {
@@ -160,8 +130,7 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 					}
 				}
 				LazyColumn {
-					items(recipes.value) { entry ->
-						if (isInSearch(entry)) {
+					items(activeRecipes) { entry ->
 						val isSelected = selectedEntries.contains(entry)
 						RecipePreview(entry, isSelected, onClick = {
 							view.setActive(entry)
@@ -179,7 +148,6 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 					}
 				}
 			}
-			}
 
 			when {
 				openDeletionDialog -> {
@@ -211,6 +179,13 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 							openTagFilterDialog = false
 							view.reloadTagFilterState()
 							activeTags = filters.value.count { f -> f.checked }
+							activeRecipes = recipes.value.filter {
+								filterRecipe(
+									it,
+									search.value,
+									filters.value
+								)
+							}
 						},
 						view,
 					)
@@ -225,3 +200,39 @@ fun MainScreen(ctx: MainActivity, padding: PaddingValues, view: RecipesView) {
 		}
 	}
 }
+
+private fun filterRecipe(
+	entry: RecipeWithTags,
+	search: String?,
+	filters: List<TagFilter>
+): Boolean {
+	val isSearchEmpty = search.isNullOrEmpty()
+	val hasTitle = entry.recipe.title.contains(search.orEmpty(), ignoreCase = true)
+	val hasTags = entry.tags.stream()
+		.filter { tag -> tag.name.contains(search.orEmpty(), ignoreCase = true) }
+		.count() > 0
+
+	if (!isSearchEmpty && !hasTitle && !hasTags) {
+		return false
+	}
+
+	val totalFilters = filters.stream().filter { f -> f.checked }.count()
+	var checkedFilters = 0
+
+	for (filter in filters) {
+		if (filter.checked) {
+			val hasTagFilters = entry.tags.isNotEmpty() && entry.tags.stream()
+				.filter { tag -> tag.name.contains(filter.tag, ignoreCase = true) }
+				.count() > 0
+
+			if (hasTagFilters) {
+				checkedFilters += 1
+			} else {
+				checkedFilters -= 1
+			}
+		}
+	}
+
+	val hasTagFilters = checkedFilters >= totalFilters
+	return !(totalFilters > 0 && !hasTagFilters)
+}

app/src/main/java/xyz/pixelatedw/recipe/ui/components/TagFilterDialog.kt

@@ -47,6 +47,10 @@ fun TagFilterDialog(onAccept: () -> Unit, view: RecipesView) {
 					.wrapContentSize(Alignment.TopStart)
 			) {
 				items(filters.value) { tag ->
+					if (tag.count <= 0) {
+						return@items
+					}
+
 					// TODO This doesn't really feel right lmao, but for now it works
 					val filterChecked = remember { mutableStateOf(tag.checked) }