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package io.dico.parcels2.storage
import io.dico.parcels2.AddedData
import io.dico.parcels2.Parcel
import io.dico.parcels2.ParcelData
import io.dico.parcels2.ParcelOwner
import kotlinx.coroutines.experimental.*
import kotlinx.coroutines.experimental.channels.ReceiveChannel
import kotlinx.coroutines.experimental.channels.produce
import java.util.*
import java.util.concurrent.Executor
import java.util.concurrent.Executors
interface Storage {
val name: String
val syncDispatcher: CoroutineDispatcher
val asyncDispatcher: CoroutineDispatcher
val isConnected: Boolean
fun init(): Job
fun shutdown(): Job
fun readParcelData(parcelFor: Parcel): Deferred<ParcelData?>
fun readParcelData(parcelsFor: Sequence<Parcel>, channelCapacity: Int): ReceiveChannel<Pair<Parcel, ParcelData?>>
fun readAllParcelData(channelCapacity: Int): ReceiveChannel<Pair<SerializableParcel, ParcelData?>>
fun getOwnedParcels(user: ParcelOwner): Deferred<List<SerializableParcel>>
fun getNumParcels(user: ParcelOwner): Deferred<Int>
fun setParcelData(parcelFor: Parcel, data: ParcelData?): Job
fun setParcelOwner(parcelFor: Parcel, owner: ParcelOwner?): Job
fun setParcelPlayerState(parcelFor: Parcel, player: UUID, state: Boolean?): Job
fun setParcelAllowsInteractInventory(parcel: Parcel, value: Boolean): Job
fun setParcelAllowsInteractInputs(parcel: Parcel, value: Boolean): Job
fun readGlobalPlayerStateData(owner: ParcelOwner): Deferred<AddedData?>
fun setGlobalPlayerState(owner: ParcelOwner, player: UUID, state: Boolean?): Job
}
class StorageWithCoroutineBacking internal constructor(val backing: Backing) : Storage {
override val name get() = backing.name
override val syncDispatcher = Executor { it.run() }.asCoroutineDispatcher()
val poolSize: Int get() = 4
override val asyncDispatcher = Executors.newFixedThreadPool(poolSize) { Thread(it, "Parcels2_StorageThread") }.asCoroutineDispatcher()
override val isConnected get() = backing.isConnected
@Suppress("NOTHING_TO_INLINE")
private inline fun <T> defer(noinline block: suspend CoroutineScope.() -> T): Deferred<T> {
return async(context = asyncDispatcher, start = CoroutineStart.ATOMIC, block = block)
}
@Suppress("NOTHING_TO_INLINE")
private inline fun job(noinline block: suspend CoroutineScope.() -> Unit): Job {
return launch(context = asyncDispatcher, start = CoroutineStart.ATOMIC, block = block)
}
override fun init() = job { backing.init() }
override fun shutdown() = job { backing.shutdown() }
override fun readParcelData(parcelFor: Parcel) = defer { backing.readParcelData(parcelFor) }
override fun readParcelData(parcelsFor: Sequence<Parcel>, channelCapacity: Int) =
produce(asyncDispatcher, capacity = channelCapacity) { with(backing) { produceParcelData(parcelsFor) } }
override fun readAllParcelData(channelCapacity: Int): ReceiveChannel<Pair<SerializableParcel, ParcelData?>> =
produce(asyncDispatcher, capacity = channelCapacity) { with(backing) { produceAllParcelData() } }
override fun getOwnedParcels(user: ParcelOwner) = defer { backing.getOwnedParcels(user) }
override fun getNumParcels(user: ParcelOwner) = defer { backing.getNumParcels(user) }
override fun setParcelData(parcelFor: Parcel, data: ParcelData?) = job { backing.setParcelData(parcelFor, data) }
override fun setParcelOwner(parcelFor: Parcel, owner: ParcelOwner?) = job { backing.setParcelOwner(parcelFor, owner) }
override fun setParcelPlayerState(parcelFor: Parcel, player: UUID, state: Boolean?) = job { backing.setParcelPlayerState(parcelFor, player, state) }
override fun setParcelAllowsInteractInventory(parcel: Parcel, value: Boolean) = job { backing.setParcelAllowsInteractInventory(parcel, value) }
override fun setParcelAllowsInteractInputs(parcel: Parcel, value: Boolean) = job { backing.setParcelAllowsInteractInputs(parcel, value) }
override fun readGlobalPlayerStateData(owner: ParcelOwner): Deferred<AddedData?> = defer { backing.readGlobalPlayerStateData(owner) }
override fun setGlobalPlayerState(owner: ParcelOwner, player: UUID, state: Boolean?) = job { backing.setGlobalPlayerState(owner, player, state) }
}
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