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package cat.freya.khs.command.util
import cat.freya.khs.Khs
import cat.freya.khs.player.Player
private data class CommandData(val command: Command, val permission: String, val args: List<String>)
class CommandGroup(val plugin: Khs, override val label: String, vararg commands: CommandPart) :
CommandPart {
// set of commands to run in this group
private final val REGISTRY: Map<String, CommandPart> =
commands.associate { it.label.lowercase() to it }
private fun getCommand(args: List<String>, permission: String): CommandData? {
val invoke = args.firstOrNull()?.lowercase() ?: return null
val command = REGISTRY.get(invoke) ?: return null
return when (command) {
is Command -> CommandData(command, "$permission.$invoke", args.drop(1))
is CommandGroup -> command.getCommand(args.drop(1), "$permission.$invoke")
else -> null
}
}
private fun messageAbout(player: Player) {
val version = plugin.shim.pluginVersion
player.message(
"&b&lKenshin's Hide and Seek &7(&f$version&7)\n" +
"&7Author: &f[KenshinEto]\n" +
"&7Help Command: &b/hs &fhelp"
)
}
fun handleCommand(player: Player, args: List<String>) {
val data = getCommand(args, label) ?: return messageAbout(player)
if (plugin.saving) {
player.message(plugin.locale.prefix.error + plugin.locale.command.notAllowedTemp)
return
}
if (plugin.config.permissionsRequired && !player.hasPermission(data.permission)) {
player.message(plugin.locale.prefix.error + plugin.locale.command.notAllowed)
return
}
val paramCount = data.command.usage.filter { it.firstOrNull() != '*' }.count()
if (data.args.size < paramCount) {
player.message(plugin.locale.prefix.error + plugin.locale.command.notEnoughArguments)
return
}
runCatching { data.command.execute(plugin, player, data.args) }
.onFailure {
player.message(
plugin.locale.prefix.error + (it.message ?: plugin.locale.command.unknownError)
)
if (plugin.config.debug) {
plugin.shim.logger.warning("=== KHS BEGIN DEBUG TRACE ===")
plugin.shim.logger.warning(it.stackTraceToString())
plugin.shim.logger.warning("=== KHS END DEBUG TRACE ===")
}
}
}
private fun handleTabComplete(
player: Player,
args: List<String>,
permission: String,
): List<String> {
val invoke = args.firstOrNull()?.lowercase() ?: return listOf()
val command = REGISTRY.get(invoke)
return when {
command is Command -> {
if (
plugin.config.permissionsRequired &&
!player.hasPermission("$permission.$invoke")
)
return listOf()
var index = maxOf(args.size - 1, 1)
val typed = args.getOrNull(index) ?: return listOf()
// handle last argument of usage being a varadic (...)
if (
index >= command.usage.size &&
command.usage.lastOrNull()?.endsWith("...") == true
)
index = command.usage.size
val parameter = command.usage.getOrNull(index - 1) ?: return listOf()
command.autoComplete(plugin, parameter, typed)
}
command is CommandGroup ->
command.handleTabComplete(player, args.drop(1), "$permission.$invoke")
args.size == 1 -> REGISTRY.keys.filter { it.startsWith(invoke) }
else -> listOf()
}
}
fun handleTabComplete(player: Player, args: List<String>): List<String> {
return handleTabComplete(player, args, label)
}
private fun commandsFor(
player: Player,
label: String,
permission: String,
res: MutableList<Pair<String, Command>>,
) {
for ((invoke, command) in REGISTRY) {
when (command) {
is Command -> {
if (
plugin.config.permissionsRequired &&
!player.hasPermission("$permission.$invoke")
)
continue
res.add("$label $invoke" to command)
}
is CommandGroup ->
command.commandsFor(player, "$label $invoke", "$permission.$invoke", res)
}
}
}
fun commandsFor(player: Player): List<Pair<String, Command>> {
val commands = mutableListOf<Pair<String, Command>>()
commandsFor(player, label, label, commands)
return commands
}
}
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