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package moe.nea.notenoughupdates.util
import kotlinx.serialization.KSerializer
import kotlinx.serialization.SerializationException
import moe.nea.notenoughupdates.NotEnoughUpdates
import moe.nea.notenoughupdates.events.NEUScreenEvents
import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
import net.minecraft.client.Minecraft
import net.minecraft.commands.CommandSource
import net.minecraft.network.chat.Component
import java.io.IOException
import java.nio.file.Path
import java.util.concurrent.CopyOnWriteArrayList
import kotlin.io.path.exists
import kotlin.io.path.readText
import kotlin.io.path.writeText
import kotlin.reflect.KClass
abstract class ConfigHolder<T>(
val serializer: KSerializer<T>,
val name: String,
val default: () -> T
) {
var config: T
private set
init {
config = readValueOrDefault()
putConfig(this::class, this)
}
val file: Path get() = NotEnoughUpdates.CONFIG_DIR.resolve("$name.json")
protected fun readValueOrDefault(): T {
if (file.exists())
try {
return NotEnoughUpdates.json.decodeFromString(
serializer,
file.readText()
)
} catch (e: IOException) {
badLoads.add(name)
NotEnoughUpdates.logger.error(
"IO exception during loading of config file $name. This will reset this config.",
e
)
} catch (e: SerializationException) {
badLoads.add(name)
NotEnoughUpdates.logger.error(
"Serialization exception during loading of config file $name. This will reset this config.",
e
)
}
return default()
}
private fun writeValue(t: T) {
file.writeText(NotEnoughUpdates.json.encodeToString(serializer, t))
}
fun save() {
writeValue(config)
}
fun load() {
config = readValueOrDefault()
}
fun markDirty() {
Companion.markDirty(this::class)
}
companion object {
private var badLoads: MutableList<String> = CopyOnWriteArrayList()
private val allConfigs: MutableMap<KClass<out ConfigHolder<*>>, ConfigHolder<*>> = mutableMapOf()
private val dirty: MutableSet<KClass<out ConfigHolder<*>>> = mutableSetOf()
private fun <T : ConfigHolder<K>, K> putConfig(kClass: KClass<T>, inst: ConfigHolder<K>) {
allConfigs[kClass] = inst
}
fun <T : ConfigHolder<K>, K> markDirty(kClass: KClass<T>) {
if (kClass !in allConfigs) {
NotEnoughUpdates.logger.error("Tried to markDirty '${kClass.qualifiedName}', which isn't registered as 'ConfigHolder'")
return
}
dirty.add(kClass)
}
private fun performSaves() {
val toSave = dirty.toList().also {
dirty.clear()
}
for (it in toSave) {
val obj = allConfigs[it]
if (obj == null) {
NotEnoughUpdates.logger.error("Tried to save '${it}', which isn't registered as 'ConfigHolder'")
continue
}
obj.save()
}
}
private fun warnForResetConfigs(player: CommandSource) {
if (badLoads.isNotEmpty()) {
player.sendSystemMessage(
Component.literal(
"The following configs have been reset: ${badLoads.joinToString(", ")}. " +
"This can be intentional, but probably isn't."
)
)
badLoads.clear()
}
}
fun registerEvents() {
NEUScreenEvents.SCREEN_OPEN.register(NEUScreenEvents.OnScreenOpen { old, new ->
performSaves()
val p = Minecraft.getInstance().player
if (p != null) {
warnForResetConfigs(p)
}
false
})
ClientLifecycleEvents.CLIENT_STOPPING.register(ClientLifecycleEvents.ClientStopping {
performSaves()
})
}
}
}
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