package appeng.me.cache;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import appeng.api.AEApi;
import appeng.api.networking.IGrid;
import appeng.api.networking.IGridHost;
import appeng.api.networking.IGridNode;
import appeng.api.networking.IGridStorage;
import appeng.api.networking.events.MENetworkCellArrayUpdate;
import appeng.api.networking.events.MENetworkEventSubscribe;
import appeng.api.networking.security.BaseActionSource;
import appeng.api.networking.security.IActionHost;
import appeng.api.networking.security.ISecurityGrid;
import appeng.api.networking.security.MachineSource;
import appeng.api.networking.storage.IStackWatcher;
import appeng.api.networking.storage.IStackWatcherHost;
import appeng.api.networking.storage.IStorageGrid;
import appeng.api.storage.ICellContainer;
import appeng.api.storage.ICellProvider;
import appeng.api.storage.IMEInventoryHandler;
import appeng.api.storage.IMEMonitor;
import appeng.api.storage.StorageChannel;
import appeng.api.storage.data.IAEFluidStack;
import appeng.api.storage.data.IAEItemStack;
import appeng.api.storage.data.IAEStack;
import appeng.api.storage.data.IItemList;
import appeng.me.helpers.GenericInterestManager;
import appeng.me.storage.ItemWatcher;
import appeng.me.storage.NetworkInventoryHandler;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.SetMultimap;
public class GridStorageCache implements IStorageGrid
{
final private SetMultimap<IAEStack, ItemWatcher> interests = HashMultimap.create();
final public GenericInterestManager<ItemWatcher> interestManager = new GenericInterestManager<ItemWatcher>( interests );
final HashSet<ICellProvider> activeCellProviders = new HashSet<ICellProvider>();
final HashSet<ICellProvider> inactiveCellProviders = new HashSet<ICellProvider>();
final public IGrid myGrid;
private NetworkInventoryHandler<IAEItemStack> myItemNetwork;
private final NetworkMonitor<IAEItemStack> itemMonitor = new NetworkMonitor<IAEItemStack>( this, StorageChannel.ITEMS );
private NetworkInventoryHandler<IAEFluidStack> myFluidNetwork;
private final NetworkMonitor<IAEFluidStack> fluidMonitor = new NetworkMonitor<IAEFluidStack>( this, StorageChannel.FLUIDS );
private final HashMap<IGridNode, IStackWatcher> watchers = new HashMap<IGridNode, IStackWatcher>();
public GridStorageCache(IGrid g) {
myGrid = g;
}
@Override
public void onUpdateTick()
{
itemMonitor.onTick();
fluidMonitor.onTick();
}
private class CellChangeTrackerRecord
{
final StorageChannel channel;
final int up_or_down;
final IItemList list;
final BaseActionSource src;
public CellChangeTrackerRecord(StorageChannel channel, int i, IMEInventoryHandler<? extends IAEStack> h, BaseActionSource actionSrc) {
this.channel = channel;
this.up_or_down = i;
this.src = actionSrc;
if ( channel == StorageChannel.ITEMS )
this.list = ((IMEInventoryHandler<IAEItemStack>) h).getAvailableItems( AEApi.instance().storage().createItemList() );
else if ( channel == StorageChannel.FLUIDS )
this.list = ((IMEInventoryHandler<IAEFluidStack>) h).getAvailableItems( AEApi.instance().storage().createFluidList() );
else
this.list = null;
}
public void applyChanges()
{
postChangesToNetwork( channel, up_or_down, list, src );
}
}
private class CellChangeTracker
{
final List<CellChangeTrackerRecord> data = new LinkedList<CellChangeTrackerRecord>();
public void postChanges(StorageChannel channel, int i, IMEInventoryHandler<? extends IAEStack> h, BaseActionSource actionSrc)
{
data.add( new CellChangeTrackerRecord( channel, i, h, actionSrc ) );
}
public void applyChanges()
{
for (CellChangeTrackerRecord rec : data)
rec.applyChanges();
}
}
@Override
public void registerCellProvider(ICellProvider provider)
{
inactiveCellProviders.add( provider );
addCellProvider( provider, new CellChangeTracker() ).applyChanges();
}
@Override
public void unregisterCellProvider(ICellProvider provider)
{
removeCellProvider( provider, new CellChangeTracker() ).applyChanges();
inactiveCellProviders.remove( provider );
}
public CellChangeTracker addCellProvider(ICellProvider cc, CellChangeTracker tracker)
{
if ( inactiveCellProviders.contains( cc ) )
{
inactiveCellProviders.remove( cc );
activeCellProviders.add( cc );
BaseActionSource actionSrc = new BaseActionSource();
if ( cc instanceof IActionHost )
actionSrc = new MachineSource( (IActionHost) cc );
for (IMEInventoryHandler<IAEItemStack> h : cc.getCellArray( StorageChannel.ITEMS ))
{
tracker.postChanges( StorageChannel.ITEMS, 1, h, actionSrc );
}
for (IMEInventoryHandler<IAEFluidStack> h : cc.getCellArray( StorageChannel.FLUIDS ))
{
tracker.postChanges( StorageChannel.FLUIDS, 1, h, actionSrc );
}
}
return tracker;
}
public CellChangeTracker removeCellProvider(ICellProvider cc, CellChangeTracker tracker)
{
if ( activeCellProviders.contains( cc ) )
{
inactiveCellProviders.add( cc );
activeCellProviders.remove( cc );
BaseActionSource actionSrc = new BaseActionSource();
if ( cc instanceof IActionHost )
actionSrc = new MachineSource( (IActionHost) cc );
for (IMEInventoryHandler<IAEItemStack> h : cc.getCellArray( StorageChannel.ITEMS ))
{
tracker.postChanges( StorageChannel.ITEMS, -1, h, actionSrc );
}
for (IMEInventoryHandler<IAEFluidStack> h : cc.getCellArray( StorageChannel.FLUIDS ))
{
tracker.postChanges( StorageChannel.FLUIDS, -1, h, actionSrc );
}
}
return tracker;
}
@MENetworkEventSubscribe
public void cellUpdate(MENetworkCellArrayUpdate ev)
{
myItemNetwork = null;
myFluidNetwork = null;
LinkedList<ICellProvider> ll = new LinkedList();
ll.addAll( inactiveCellProviders );
ll.addAll( activeCellProviders );
CellChangeTracker tracker = new CellChangeTracker();
for (ICellProvider cc : ll)
{
boolean Active = true;
if ( cc instanceof IActionHost )
{
IGridNode node = ((IActionHost) cc).getActionableNode();
if ( node != null && node.isActive() )
Active = true;
else
Active = false;
}
if ( Active )
addCellProvider( cc, tracker );
else
removeCellProvider( cc, tracker );
}
itemMonitor.forceUpdate();
fluidMonitor.forceUpdate();
tracker.applyChanges();
}
@Override
public void removeNode(IGridNode node, IGridHost machine)
{
if ( machine instanceof ICellContainer )
{
ICellContainer cc = (ICellContainer) machine;
myGrid.postEvent( new MENetworkCellArrayUpdate() );
removeCellProvider( cc, new CellChangeTracker() ).applyChanges();
inactiveCellProviders.remove( cc );
}
if ( machine instanceof IStackWatcherHost )
{
IStackWatcher myWatcher = watchers.get( machine );
if ( myWatcher != null )
{
myWatcher.clear();
watchers.remove( machine );
}
}
}
@Override
public void addNode(IGridNode node, IGridHost machine)
{
if ( machine instanceof ICellContainer )
{
ICellContainer cc = (ICellContainer) machine;
inactiveCellProviders.add( cc );
myGrid.postEvent( new MENetworkCellArrayUpdate() );
if ( node.isActive() )
addCellProvider( cc, new CellChangeTracker() ).applyChanges();
}
if ( machine instanceof IStackWatcherHost )
{
IStackWatcherHost swh = (IStackWatcherHost) machine;
ItemWatcher iw = new ItemWatcher( this, swh );
watchers.put( node, iw );
swh.updateWatcher( iw );
}
}
private void buildNetworkStorage(StorageChannel chan)
{
SecurityCache security = myGrid.getCache( ISecurityGrid.class );
switch (chan)
{
case FLUIDS:
myFluidNetwork = new NetworkInventoryHandler<IAEFluidStack>( StorageChannel.FLUIDS, security );
for (ICellProvider cc : activeCellProviders)
{
for (IMEInventoryHandler<IAEFluidStack> h : cc.getCellArray( chan ))
myFluidNetwork.addNewStorage( h );
}
break;
case ITEMS:
myItemNetwork = new NetworkInventoryHandler<IAEItemStack>( StorageChannel.ITEMS, security );
for (ICellProvider cc : activeCellProviders)
{
for (IMEInventoryHandler<IAEItemStack> h : cc.getCellArray( chan ))
myItemNetwork.addNewStorage( h );
}
break;
default:
}
}
private void postChangesToNetwork(StorageChannel chan, int up_or_down, IItemList availableItems, BaseActionSource src)
{
switch (chan)
{
case FLUIDS:
fluidMonitor.postChange( up_or_down > 0, availableItems, src );
break;
case ITEMS:
itemMonitor.postChange( up_or_down > 0, availableItems, src );
break;
default:
}
}
public IMEInventoryHandler<IAEItemStack> getItemInventoryHandler()
{
if ( myItemNetwork == null )
buildNetworkStorage( StorageChannel.ITEMS );
return myItemNetwork;
}
public IMEInventoryHandler<IAEFluidStack> getFluidInventoryHandler()
{
if ( myFluidNetwork == null )
buildNetworkStorage( StorageChannel.FLUIDS );
return myFluidNetwork;
}
@Override
public void postAlterationOfStoredItems(StorageChannel chan, Iterable<? extends IAEStack> input, BaseActionSource src)
{
if ( chan == StorageChannel.ITEMS )
itemMonitor.postChange( true, (Iterable<IAEItemStack>) input, src );
else if ( chan == StorageChannel.FLUIDS )
fluidMonitor.postChange( true, (Iterable<IAEFluidStack>) input, src );
}
@Override
public IMEMonitor<IAEFluidStack> getFluidInventory()
{
return fluidMonitor;
}
@Override
public IMEMonitor<IAEItemStack> getItemInventory()
{
return itemMonitor;
}
@Override
public void onSplit(IGridStorage storageB)
{
}
@Override
public void onJoin(IGridStorage storageB)
{
}
@Override
public void populateGridStorage(IGridStorage storage)
{
}
}