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package moe.nea.firmament.util.data
import kotlinx.serialization.KSerializer
import kotlin.io.path.createDirectories
import kotlin.io.path.deleteExisting
import kotlin.io.path.exists
import kotlin.io.path.extension
import kotlin.io.path.listDirectoryEntries
import kotlin.io.path.nameWithoutExtension
import kotlin.io.path.readText
import kotlin.io.path.writeText
import moe.nea.firmament.Firmament
abstract class MultiFileDataHolder<T>(
val dataSerializer: KSerializer<T>,
val configName: String
) { // TODO: abstract this + ProfileSpecificDataHolder
val configDirectory = Firmament.CONFIG_DIR.resolve(configName)
private var allData = readValues()
protected fun readValues(): MutableMap<String, T> {
if (!configDirectory.exists()) {
configDirectory.createDirectories()
}
val profileFiles = configDirectory.listDirectoryEntries()
return profileFiles
.filter { it.extension == "json" }
.mapNotNull {
try {
it.nameWithoutExtension to Firmament.json.decodeFromString(dataSerializer, it.readText())
} catch (e: Exception) { /* Expecting IOException and SerializationException, but Kotlin doesn't allow multi catches*/
IDataHolder.badLoads.add(configName)
Firmament.logger.error(
"Exception during loading of multi file data holder $it ($configName). This will reset that profiles config.",
e
)
null
}
}.toMap().toMutableMap()
}
fun save() {
if (!configDirectory.exists()) {
configDirectory.createDirectories()
}
val c = allData
configDirectory.listDirectoryEntries().forEach {
if (it.nameWithoutExtension !in c.mapKeys { it.toString() }) {
it.deleteExisting()
}
}
c.forEach { (name, value) ->
val f = configDirectory.resolve("$name.json")
f.writeText(Firmament.json.encodeToString(dataSerializer, value))
}
}
fun list(): Map<String, T> = allData
val validPathRegex = "[a-zA-Z0-9_][a-zA-Z0-9\\-_.]*".toPattern()
fun insert(name: String, value: T) {
require(validPathRegex.matcher(name).matches()) { "Not a valid name: $name" }
allData[name] = value
}
}
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