package net.hareworks.ghostdisplays.display

import java.util.UUID
import java.util.concurrent.ConcurrentHashMap
import net.hareworks.ghostdisplays.display.DisplayManager.DisplayOperationException
import org.bukkit.Bukkit
import org.bukkit.entity.Player
import org.bukkit.event.EventHandler
import org.bukkit.event.Listener
import org.bukkit.event.player.AsyncPlayerChatEvent
import org.bukkit.event.player.PlayerQuitEvent
import org.bukkit.plugin.java.JavaPlugin

class EditSessionManager(
    private val plugin: JavaPlugin,
    private val manager: DisplayManager
) : Listener {
    private val sessions = ConcurrentHashMap<UUID, String>()

    fun begin(player: Player, displayId: String) {
        sessions[player.uniqueId] = displayId
    }

    fun cancel(player: Player): Boolean = sessions.remove(player.uniqueId) != null

    fun shutdown() {
        sessions.clear()
    }

    @EventHandler(ignoreCancelled = true)
    fun onPlayerChat(event: AsyncPlayerChatEvent) {
        val displayId = sessions[event.player.uniqueId] ?: return
        event.isCancelled = true
        val message = event.message
        if (message.equals("cancel", ignoreCase = true)) {
            sessions.remove(event.player.uniqueId)
            event.player.sendMessage("GhostDisplays: editing for '$displayId' cancelled.")
            return
        }
        Bukkit.getScheduler().runTask(plugin) {
            try {
                manager.updateText(displayId, message)
                event.player.sendMessage("GhostDisplays: updated text for '$displayId'.")
            } catch (ex: DisplayOperationException) {
                event.player.sendMessage("GhostDisplays: ${ex.message}")
            } finally {
                sessions.remove(event.player.uniqueId)
            }
        }
    }

    @EventHandler
    fun onPlayerQuit(event: PlayerQuitEvent) {
        sessions.remove(event.player.uniqueId)
    }
}