update how intermediaries are determined for fabric

src/api/kotlin/xyz/wagyourtail/unimined/api/minecraft/patch/fabric/LegacyFabricPatcher.kt

@@ -5,4 +5,6 @@ package xyz.wagyourtail.unimined.api.minecraft.patch.fabric
  */
 interface LegacyFabricPatcher : FabricLikePatcher {
 
+    var replaceLwjglVersion: String?
+
 }

src/minecraft/kotlin/xyz/wagyourtail/unimined/internal/minecraft/patch/fabric/BabricMinecraftTransformer.kt

@@ -14,9 +14,7 @@ open class BabricMinecraftTransformer(project: Project, provider: MinecraftProvi
 
     override var canCombine: Boolean by FinalizeOnRead(true)
 
-    override var prodNamespace: Namespace by LazyMutable {
-        provider.mappings.checkedNs("babricIntermediary")
-    }
+    override val defaultProdNamespace: String = "babricIntermediary"
 
     override fun addIntermediaryMappings() {
         provider.mappings {

src/minecraft/kotlin/xyz/wagyourtail/unimined/internal/minecraft/patch/fabric/FabricLikeMinecraftTransformer.kt

@@ -94,9 +94,12 @@ abstract class FabricLikeMinecraftTransformer(
         }
     )
 
+    abstract val defaultProdNamespace: String
+
     override var prodNamespace by FinalizeOnRead(LazyMutable {
         if (!provider.obfuscated) return@LazyMutable provider.mappings.checkedNs("official")
-        provider.mappings.checkedNs("intermediary")
+        if (customIntermediaries) throw IllegalStateException("Custom intermediaries are enabled, but prodNamespace is not overriden")
+        provider.mappings.checkedNs(defaultProdNamespace)
     })
 
     @get:ApiStatus.Internal

src/minecraft/kotlin/xyz/wagyourtail/unimined/internal/minecraft/patch/fabric/LegacyFabricMinecraftTransformer.kt

@@ -19,16 +19,14 @@ open class LegacyFabricMinecraftTransformer(
 
     override var replaceLwjglVersion: String? by FinalizeOnRead("2.9.4+legacyfabric.8")
 
+    override val defaultProdNamespace: String = "legacyIntermediary"
+
     override fun addIntermediaryMappings() {
         provider.mappings {
             legacyIntermediary()
         }
     }
 
-    override var prodNamespace: Namespace by FinalizeOnRead(LazyMutable {
-        provider.mappings.checkedNs("legacyIntermediary")
-    })
-
     override fun loader(dep: Any, action: Dependency.() -> Unit) {
         fabric.dependencies.add(
             (if (dep is String && !dep.contains(":")) {

src/minecraft/kotlin/xyz/wagyourtail/unimined/internal/minecraft/patch/fabric/OrnitheFabricMinecraftTransformer.kt

@@ -11,14 +11,12 @@ open class OrnitheFabricMinecraftTransformer(
     provider: MinecraftProvider
 ): LegacyFabricMinecraftTransformer(project, provider) {
 
+    override val defaultProdNamespace: String = "calamus"
+
     override fun addIntermediaryMappings() {
         provider.mappings {
             calamus()
         }
     }
 
-    override var prodNamespace: Namespace by FinalizeOnRead(LazyMutable {
-        provider.mappings.checkedNs("calamus")
-    })
-
 }