package club.mcscrims.speedhg.config

import net.kyori.adventure.text.Component
import net.kyori.adventure.text.minimessage.MiniMessage
import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder
import org.bukkit.configuration.file.YamlConfiguration
import org.bukkit.entity.Player
import org.bukkit.plugin.java.JavaPlugin
import java.io.File
import java.util.concurrent.ConcurrentHashMap

class LanguageManager(
	private val plugin: JavaPlugin
) {

	private data class LangData(
		val strings: Map<String, String>,
		val lists: Map<String, List<String>>
	)

	// Map: Sprachcode -> (Key -> Nachricht)
	private val languages = ConcurrentHashMap<String, LangData>()
	private val miniMessage = MiniMessage.miniMessage()
	private val defaultLanguage = plugin.config.getString("default.language", "en_US")!!

	init {
		loadLanguages()
	}

	fun loadLanguages()
	{
		languages.clear()
		val folder = File( plugin.dataFolder, "languages" )

		if ( !folder.exists() ) {
			folder.mkdirs()
			createDefault("de_DE")
			createDefault("en_US")
		}

		folder.walk().filter { it.extension == "yml" }.forEach { file ->
			val langCode = file.nameWithoutExtension
			val config = YamlConfiguration.loadConfiguration( file )

			val strings = config.getKeys( true )
				.filter { config.isString( it ) }
				.associateWith { config.getString( it )!! }

			val lists = config.getKeys( true )
				.filter { config.isList( it ) }
				.associateWith { config.getStringList( it ) }

			languages[ langCode ] = LangData( strings, lists )
		}
	}

	private fun createDefault(
		locale: String
	) {
		val fileName = "languages/$locale.yml"
		if (plugin.getResource( fileName ) != null) {
			plugin.saveResource( fileName, false )
		}
	}

	fun getRawMessage(
		player: Player,
		key: String
	): String
	{
		val locale = player.locale().toString()
		val langMap = languages[ locale ] ?: languages[ defaultLanguage ]
		return langMap?.strings?.get( key ) ?: "<red>Missing Key: $key</red>"
	}

	fun getDefaultRawMessage(
		key: String
	): String
	{
		return languages[ defaultLanguage ]?.strings?.get( key ) ?: "<red>Missing Key: $key</red>"
	}

	fun getRawMessageList(
		player: Player,
		key: String
	): List<String>
	{
		val locale = player.locale().toString()
		val data = languages[ locale ] ?: languages[ defaultLanguage ]
		return data?.lists?.get( key ) ?: listOf( "<red>Missing List: $key</red>" )
	}

	fun getDefaultRawMessageList(
		key: String
	): List<String>
	{
		val data = languages[ defaultLanguage ]
		return data?.lists?.get( key ) ?: listOf( "<red>Missing List: $key</red>" )
	}

	fun getComponent(
		player: Player,
		key: String,
		placeholders: Map<String, String>
	): Component
	{
		val prefixRaw = getRawMessage( player, "default.prefix" )
		val prefixTag = Placeholder.parsed( "prefix", prefixRaw )
		val raw = getRawMessage( player, key )
		val tags = placeholders.map { (k, v) -> Placeholder.parsed( k, v ) }.plus( prefixTag )
		return miniMessage.deserialize( raw, *tags.toTypedArray() )
	}

	fun getDefaultComponent(
		key: String,
		placeholders: Map<String, String>
	): Component
	{
		val raw = languages[ defaultLanguage ]?.strings?.get( key ) ?: "<red>Missing Key: $key</red>"
		val tags = placeholders.map { (k, v) -> Placeholder.parsed( k, v ) }
		return miniMessage.deserialize( raw, *tags.toTypedArray() )
	}

}