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package io.dico.parcels2.defaultimpl
import io.dico.parcels2.*
import io.dico.parcels2.blockvisitor.Schematic
import io.dico.parcels2.util.schedule
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import org.bukkit.Bukkit
import org.bukkit.WorldCreator
import org.joda.time.DateTime
class ParcelProviderImpl(val plugin: ParcelsPlugin) : ParcelProvider {
inline val options get() = plugin.options
override val worlds: Map<String, ParcelWorld> get() = _worlds
private val _worlds: MutableMap<String, ParcelWorld> = hashMapOf()
private val _generators: MutableMap<String, ParcelGenerator> = hashMapOf()
private var _worldsLoaded = false
private var _dataIsLoaded = false
// disabled while !_dataIsLoaded. getParcelById() will work though for data loading.
override fun getWorld(name: String): ParcelWorld? = _worlds[name]?.takeIf { _dataIsLoaded }
override fun getWorldById(id: ParcelWorldId): ParcelWorld? {
if (id is ParcelWorld) return id
return _worlds[id.name] ?: id.bukkitWorld?.let { getWorld(it) }
}
override fun getParcelById(id: ParcelId): Parcel? {
if (id is Parcel) return id
return getWorldById(id.worldId)?.container?.getParcelById(id.x, id.z)
}
override fun getWorldGenerator(worldName: String): ParcelGenerator? {
return _worlds[worldName]?.generator
?: _generators[worldName]
?: options.worlds[worldName]?.generator?.newInstance(worldName)?.also { _generators[worldName] = it }
}
override fun loadWorlds() {
if (_worldsLoaded) throw IllegalStateException()
_worldsLoaded = true
loadWorlds0()
}
private fun loadWorlds0() {
if (Bukkit.getWorlds().isEmpty()) {
plugin.schedule(::loadWorlds0)
plugin.logger.warning("Scheduling to load worlds in the next tick because no bukkit worlds are loaded yet")
return
}
val newlyCreatedWorlds = mutableListOf<ParcelWorld>()
for ((worldName, worldOptions) in options.worlds.entries) {
var parcelWorld = _worlds[worldName]
if (parcelWorld != null) continue
val generator: ParcelGenerator = getWorldGenerator(worldName)!!
val worldExists = Bukkit.getWorld(worldName) != null
val bukkitWorld =
if (worldExists) Bukkit.getWorld(worldName)!!
else {
logger.info("Creating world $worldName")
WorldCreator(worldName).generator(generator).createWorld()
}
parcelWorld = ParcelWorldImpl(plugin, bukkitWorld, generator, worldOptions.runtime,::DefaultParcelContainer)
if (!worldExists) {
val time = DateTime.now()
plugin.storage.setWorldCreationTime(parcelWorld.id, time)
parcelWorld.creationTime = time
newlyCreatedWorlds.add(parcelWorld)
} else {
GlobalScope.launch(context = Dispatchers.Unconfined) {
parcelWorld.creationTime = plugin.storage.getWorldCreationTime(parcelWorld.id).await() ?: DateTime.now()
}
}
_worlds[worldName] = parcelWorld
}
loadStoredData(newlyCreatedWorlds.toSet())
}
private fun loadStoredData(newlyCreatedWorlds: Collection<ParcelWorld> = emptyList()) {
plugin.launch(Dispatchers.Default) {
val migration = plugin.options.migration
if (migration.enabled) {
migration.instance?.newInstance()?.apply {
logger.warn("Migrating database now...")
migrateTo(plugin.storage).join()
logger.warn("Migration completed")
if (migration.disableWhenComplete) {
migration.enabled = false
plugin.saveOptions()
}
}
}
logger.info("Loading all parcel data...")
val job1 = launch {
val channel = plugin.storage.transmitAllParcelData()
while (true) {
val (id, data) = channel.receiveOrNull() ?: break
val parcel = getParcelById(id) ?: continue
data?.let { parcel.copyData(it, callerIsDatabase = true) }
}
}
val channel2 = plugin.storage.transmitAllGlobalPrivileges()
while (true) {
val (profile, data) = channel2.receiveOrNull() ?: break
if (profile !is PrivilegeKey) {
logger.error("Received profile that is not a privilege key: ${profile.javaClass}, $profile")
continue
}
(plugin.globalPrivileges[profile] as PrivilegesHolder).copyPrivilegesFrom(data)
}
job1.join()
logger.info("Loading data completed")
_dataIsLoaded = true
}
}
override fun acquireBlockVisitorPermit(parcelId: ParcelId, with: Permit): Boolean {
val parcel = getParcelById(parcelId) as? ParcelImpl ?: return true
return parcel.acquireBlockVisitorPermit(with)
}
override fun releaseBlockVisitorPermit(parcelId: ParcelId, with: Permit) {
val parcel = getParcelById(parcelId) as? ParcelImpl ?: return
parcel.releaseBlockVisitorPermit(with)
}
override fun trySubmitBlockVisitor(permit: Permit, vararg parcelIds: ParcelId, function: JobFunction): Job? {
val withPermit = parcelIds.filter { acquireBlockVisitorPermit(it, permit) }
if (withPermit.size != parcelIds.size) {
withPermit.forEach { releaseBlockVisitorPermit(it, permit) }
return null
}
val job = plugin.jobDispatcher.dispatch(function)
plugin.launch {
job.awaitCompletion()
withPermit.forEach { releaseBlockVisitorPermit(it, permit) }
}
return job
}
override fun swapParcels(parcelId1: ParcelId, parcelId2: ParcelId): Job? {
val blockManager1 = getWorldById(parcelId1.worldId)?.blockManager ?: return null
val blockManager2 = getWorldById(parcelId2.worldId)?.blockManager ?: return null
return trySubmitBlockVisitor(Permit(), parcelId1, parcelId2) {
var region1 = blockManager1.getRegion(parcelId1)
var region2 = blockManager2.getRegion(parcelId2)
val size = region1.size.clampMax(region2.size)
if (size != region1.size) {
region1 = region1.withSize(size)
region2 = region2.withSize(size)
}
val schematicOf1 = delegateWork(0.25) { Schematic().apply { load(blockManager1.world, region1) } }
val schematicOf2 = delegateWork(0.25) { Schematic().apply { load(blockManager2.world, region2) } }
delegateWork(0.25) { with(schematicOf1) { paste(blockManager2.world, region2.origin) } }
delegateWork(0.25) { with(schematicOf2) { paste(blockManager1.world, region1.origin) } }
}
}
/*
fun loadWorlds(options: Options) {
for ((worldName, worldOptions) in options.worlds.entries) {
val world: ParcelWorld
try {
world = ParcelWorldImpl(
worldName,
worldOptions,
worldOptions.generator.newGenerator(this, worldName),
plugin.storage,
plugin.globalPrivileges,
::DefaultParcelContainer)
} catch (ex: Exception) {
ex.printStackTrace()
continue
}
_worlds[worldName] = world
}
plugin.functionHelper.schedule(10) {
println("Parcels generating parcelProvider now")
for ((name, world) in _worlds) {
if (Bukkit.getWorld(name) == null) {
val bworld = WorldCreator(name).generator(world.generator).createWorld()
val spawn = world.generator.getFixedSpawnLocation(bworld, null)
bworld.setSpawnLocation(spawn.x.floor(), spawn.y.floor(), spawn.z.floor())
}
}
val channel = plugin.storage.transmitAllParcelData()
val job = plugin.functionHelper.launchLazilyOnMainThread {
do {
val pair = channel.receiveOrNull() ?: break
val parcel = getParcelById(pair.first) ?: continue
pair.second?.let { parcel.copyDataIgnoringDatabase(it) }
} while (true)
}
job.start()
}
}
*/
}
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