spigot-chunkmaster/src/main/kotlin/net/trivernis/chunkmaster/commands/CommandChunkmaster.kt

package net.trivernis.chunkmaster.commands

import net.md_5.bungee.api.ChatColor
import net.md_5.bungee.api.chat.ComponentBuilder
import net.trivernis.chunkmaster.Chunkmaster
import net.trivernis.chunkmaster.lib.Subcommand
import org.bukkit.Server
import org.bukkit.command.Command
import org.bukkit.command.CommandExecutor
import org.bukkit.command.CommandSender
import org.bukkit.command.TabCompleter

class CommandChunkmaster(private val chunkmaster: Chunkmaster, private val server: Server) : CommandExecutor,
    TabCompleter {
    private val commands = HashMap<String, Subcommand>()

    init {
        registerCommands()
    }

    /**
     * Tab complete for commands
     */
    override fun onTabComplete(sender: CommandSender, command: Command, alias: String, args: Array<out String>):
            MutableList<String> {
        if (args.size == 1) {
            return commands.keys.filter { it.indexOf(args[0]) == 0 }.toMutableList()
        } else if (args.isNotEmpty()) {

            if (commands.containsKey(args[0])) {
                val commandEntry = commands[args[0]]
                return commandEntry!!.onTabComplete(sender, command, alias, args.slice(1 until args.size))
            }
        }
        return emptyList<String>().toMutableList()
    }

    /**
     * /chunkmaster command to handle all commands
     */
    override fun onCommand(sender: CommandSender, command: Command, label: String, args: Array<out String>): Boolean {
        if (args.isNotEmpty()) {
            if (sender.hasPermission("chunkmaster.${args[0]}")) {
                return if (commands.containsKey(args[0])) {
                    commands[args[0]]!!.execute(sender, args.slice(1 until args.size))
                } else {
                    sender.spigot().sendMessage(
                        *ComponentBuilder("Subcommand ").color(ChatColor.RED)
                            .append(args[0]).color(ChatColor.GREEN).append(" not found").color(ChatColor.RED).create()
                    )
                    false
                }
            } else {
                sender.spigot().sendMessage(
                    *ComponentBuilder("You do not have permission!")
                        .color(ChatColor.RED).create()
                )
            }
            return true
        } else {
            return false
        }
    }

    /**
     * Registers all subcommands.
     */
    private fun registerCommands() {
        val cmdGenerate = CmdGenerate(chunkmaster)
        commands[cmdGenerate.name] = cmdGenerate

        val cmdPause = CmdPause(chunkmaster)
        commands[cmdPause.name] = cmdPause

        val cmdResume = CmdResume(chunkmaster)
        commands[cmdResume.name] = cmdResume

        val cmdCancel = CmdCancel(chunkmaster)
        commands[cmdCancel.name] = cmdCancel

        val cmdList = CmdList(chunkmaster)
        commands[cmdList.name] = cmdList

        val cmdReload = CmdReload(chunkmaster)
        commands[cmdReload.name] = cmdReload

        val cmdTpChunk = CmdTpChunk()
        commands[cmdTpChunk.name] = cmdTpChunk
    }
}