package net.hareworks.ghostdisplays

import net.hareworks.ghostdisplays.api.DisplayService
import net.hareworks.ghostdisplays.command.CommandRegistrar
import net.hareworks.ghostdisplays.display.DisplayManager
import net.hareworks.ghostdisplays.display.EditSessionManager
import net.hareworks.ghostdisplays.internal.DefaultDisplayService
import net.hareworks.ghostdisplays.internal.controller.DisplayRegistry
import net.hareworks.kommand_lib.KommandLib
import net.hareworks.permits_lib.PermitsLib
import net.hareworks.permits_lib.bukkit.MutationSession
import net.kyori.adventure.text.minimessage.MiniMessage
import org.bukkit.plugin.ServicePriority
import org.bukkit.plugin.java.JavaPlugin

class GhostDisplaysPlugin : JavaPlugin() {
    private lateinit var displayRegistry: DisplayRegistry
    private lateinit var serviceImpl: DisplayService
    private lateinit var displayManager: DisplayManager
    private lateinit var editSessions: EditSessionManager
    private lateinit var miniMessage: MiniMessage
    private var permissionSession: MutationSession? = null
    private var kommand: KommandLib? = null

    override fun onEnable() {
        miniMessage = MiniMessage.miniMessage()
        displayRegistry = DisplayRegistry().also {
            server.pluginManager.registerEvents(it, this)
        }
        serviceImpl = DefaultDisplayService(this, displayRegistry)
        displayManager = DisplayManager(this, serviceImpl, miniMessage)
        editSessions = EditSessionManager(this, displayManager).also {
            server.pluginManager.registerEvents(it, this)
        }

        server.servicesManager.register(DisplayService::class.java, serviceImpl, this, ServicePriority.Normal)
        permissionSession = PermitsLib.session(this)
        kommand = CommandRegistrar.register(this, displayManager, editSessions, permissionSession!!)

        instance = this
        logger.info("GhostDisplays ready: ${displayRegistry.controllerCount()} controllers active.")
    }

    override fun onDisable() {
        kommand?.unregister()
        kommand = null
        runCatching { editSessions.shutdown() }
        runCatching { displayManager.destroyAll() }
        runCatching { serviceImpl.destroyAll() }
        permissionSession = null
        server.servicesManager.unregister(DisplayService::class.java, serviceImpl)
        displayRegistry.shutdown()
        instance = null
    }

    companion object {
        @Volatile
        private var instance: GhostDisplaysPlugin? = null

        fun service(): DisplayService =
            instance?.serviceImpl ?: throw IllegalStateException("GhostDisplays plugin not enabled")

        fun manager(): DisplayManager =
            instance?.displayManager ?: throw IllegalStateException("GhostDisplays plugin not enabled")
    }
}