1 files changed, 116 insertions, 0 deletions
diff --git a/src/main/kotlin/features/items/recipes/RecipeRegistry.kt b/src/main/kotlin/features/items/recipes/RecipeRegistry.kt
new file mode 100644
index 0000000..c2df46f
--- /dev/null
+++ b/src/main/kotlin/features/items/recipes/RecipeRegistry.kt
@@ -0,0 +1,116 @@
+package moe.nea.firmament.features.items.recipes
+
+import com.mojang.blaze3d.platform.InputConstants
+import io.github.moulberry.repo.IReloadable
+import io.github.moulberry.repo.NEURepository
+import moe.nea.firmament.annotations.Subscribe
+import moe.nea.firmament.events.HandledScreenKeyPressedEvent
+import moe.nea.firmament.events.ReloadRegistrationEvent
+import moe.nea.firmament.keybindings.SavedKeyBinding
+import moe.nea.firmament.repo.RepoManager
+import moe.nea.firmament.repo.SBItemStack
+import moe.nea.firmament.repo.recipes.GenericRecipeRenderer
+import moe.nea.firmament.repo.recipes.SBCraftingRecipeRenderer
+import moe.nea.firmament.repo.recipes.SBEssenceUpgradeRecipeRenderer
+import moe.nea.firmament.repo.recipes.SBForgeRecipeRenderer
+import moe.nea.firmament.repo.recipes.SBReforgeRecipeRenderer
+import moe.nea.firmament.util.MC
+import moe.nea.firmament.util.SkyblockId
+import moe.nea.firmament.util.focusedItemStack
+
+object RecipeRegistry {
+	val recipeTypes: List<GenericRecipeRenderer<*>> = listOf(
+		SBCraftingRecipeRenderer,
+		SBForgeRecipeRenderer,
+		SBReforgeRecipeRenderer,
+		SBEssenceUpgradeRecipeRenderer,
+	)
+
+
+	@Subscribe
+	fun showUsages(event: HandledScreenKeyPressedEvent) {
+		val provider =
+			if (event.matches(SavedKeyBinding.keyWithoutMods(InputConstants.KEY_R))) {
+				::getRecipesFor
+			} else if (event.matches(SavedKeyBinding.keyWithoutMods(InputConstants.KEY_U))) {
+				::getUsagesFor
+			} else {
+				return
+			}
+		val stack = event.screen.focusedItemStack ?: return
+		val recipes = provider(SBItemStack(stack))
+		if (recipes.isEmpty()) return
+		MC.screen = RecipeScreen(recipes.toList())
+	}
+
+
+	object RecipeIndexes : IReloadable {
+
+		private fun <T : Any> createIndexFor(
+			neuRepository: NEURepository,
+			recipeRenderer: GenericRecipeRenderer<T>,
+			outputs: Boolean,
+		): List<Pair<SkyblockId, RenderableRecipe<T>>> {
+			val indexer: (T) -> Collection<SBItemStack> =
+				if (outputs) recipeRenderer::getOutputs
+				else recipeRenderer::getInputs
+			return recipeRenderer.findAllRecipes(neuRepository)
+				.flatMap {
+					val wrappedRecipe = RenderableRecipe(it, recipeRenderer, null)
+					indexer(it).map { it.skyblockId to wrappedRecipe }
+				}
+		}
+
+		fun createIndex(outputs: Boolean): MutableMap<SkyblockId, List<RenderableRecipe<*>>> {
+			val m: MutableMap<SkyblockId, List<RenderableRecipe<*>>> = mutableMapOf()
+			recipeTypes.forEach { renderer ->
+				createIndexFor(RepoManager.neuRepo, renderer, outputs)
+					.forEach { (stack, recipe) ->
+						m.merge(stack, listOf(recipe)) { a, b -> a + b }
+					}
+			}
+			return m
+		}
+
+		lateinit var recipesForIndex: Map<SkyblockId, List<RenderableRecipe<*>>>
+		lateinit var usagesForIndex: Map<SkyblockId, List<RenderableRecipe<*>>>
+		override fun reload(recipe: NEURepository) {
+			recipesForIndex = createIndex(true)
+			usagesForIndex = createIndex(false)
+		}
+	}
+
+	@Subscribe
+	fun onRepoBuild(event: ReloadRegistrationEvent) {
+		event.repo.registerReloadListener(RecipeIndexes)
+	}
+
+
+	fun getRecipesFor(itemStack: SBItemStack): Set<RenderableRecipe<*>> {
+		val recipes = LinkedHashSet<RenderableRecipe<*>>()
+		recipeTypes.forEach { injectRecipesFor(it, recipes, itemStack, true) }
+		recipes.addAll(RecipeIndexes.recipesForIndex[itemStack.skyblockId] ?: emptyList())
+		return recipes
+	}
+
+	fun getUsagesFor(itemStack: SBItemStack): Set<RenderableRecipe<*>> {
+		val recipes = LinkedHashSet<RenderableRecipe<*>>()
+		recipeTypes.forEach { injectRecipesFor(it, recipes, itemStack, false) }
+		recipes.addAll(RecipeIndexes.usagesForIndex[itemStack.skyblockId] ?: emptyList())
+		return recipes
+	}
+
+	private fun <T : Any> injectRecipesFor(
+		recipeRenderer: GenericRecipeRenderer<T>,
+		collector: MutableCollection<RenderableRecipe<*>>,
+		relevantItem: SBItemStack,
+		mustBeInOutputs: Boolean
+	) {
+		collector.addAll(
+			recipeRenderer.discoverExtraRecipes(RepoManager.neuRepo, relevantItem, mustBeInOutputs)
+				.map { RenderableRecipe(it, recipeRenderer, relevantItem) }
+		)
+	}
+
+
+}