namespace Harmony.MultiBlockManagerPatches
{
    [HarmonyPatch(typeof(MultiBlockManager))]
    [HarmonyPatch("TryRegisterPOIMultiBlock")]
    public class TryRegisterPOIMultiBlockPatch
    {
        public static bool Prefix(MultiBlockManager __instance, ref bool __result, Vector3i parentWorldPos, BlockValue blockValue)
        {
            if (!__instance.CheckFeatures(MultiBlockManager.FeatureFlags.POIMBTracking))
                return false;
            using (MultiBlockManager.s_MultiBlockManagerTryAddPOIMultiBlock.Auto())
            {
                lock (__instance.lockObj)
                {
                    MultiBlockManager.TrackedBlockData trackedBlockData1;
                    if (__instance.trackedDataMap.CrossChunkMultiBlocks.TryGetValue(parentWorldPos, out trackedBlockData1))
                    {
                        UnityEngine.Debug.LogError((object)(string.Format("[MultiBlockManager] Failed to register POI multiblock at {0} due to previously registered CrossChunk data.", (object)parentWorldPos) + string.Format("\nOld value: {0} ", (object)trackedBlockData1.rawData) + string.Format("\nNew value: {0}", (object)blockValue.rawData)));
                        __result = false;
                        return false;
                    }
                    MultiBlockManager.TrackedBlockData trackedBlockData2;
                    if (__instance.trackedDataMap.PoiMultiBlocks.TryGetValue(parentWorldPos, out trackedBlockData2))
                    {
                        UnityEngine.Debug.LogError((object)(string.Format("[MultiBlockManager] Duplicate multiblock placement at {0}. New value will not be applied.", (object)parentWorldPos) + string.Format("\nOld value: {0} ", (object)trackedBlockData2.rawData) + string.Format("\nNew value: {0}", (object)blockValue.rawData)));
                        __result = false;
                        return false;
                    }
                    if (blockValue.ischild)
                    {
                        UnityEngine.Debug.LogError((object)"[MultiBlockManager] TryAddPOIMultiBlock failed: target block is not a parent: " + blockValue.Block.blockName);
                        __result = false;
                        return false;
                    }
                    RectInt flatChunkBounds;
                    if (!blockValue.Block.isMultiBlock)
                    {
                        flatChunkBounds = new RectInt((UnityEngine.Vector2Int)World.toChunkXZ(parentWorldPos), UnityEngine.Vector2Int.zero);
                    }
                    else
                    {
                        Vector3i minPos;
                        Vector3i maxPos;
                        MultiBlockManager.GetMinMaxWorldPositions(parentWorldPos, blockValue, out minPos, out maxPos);
                        Vector2i chunkXz1 = World.toChunkXZ(minPos);
                        Vector2i chunkXz2 = World.toChunkXZ(maxPos);
                        flatChunkBounds = new RectInt((UnityEngine.Vector2Int)chunkXz1, (UnityEngine.Vector2Int)(chunkXz2 - chunkXz1));
                    }
                    __instance.trackedDataMap.AddOrMergeTrackedData(parentWorldPos, blockValue.rawData, flatChunkBounds, MultiBlockManager.TrackingTypeFlags.PoiMultiBlock);
                    __instance.isDirty = true;
                    __instance.UpdateProfilerCounters();
                    __result = true;
                    return false;
                }
            }

            return false;
        }
    }
}