package runner

import commands.ClientCommand
import commands.CommandType
import input.HumanBeingBuilder
import input.IOManager
import network.NetworkManager

class CommandInvoker(
    private val io: IOManager,
    private val networkManager: NetworkManager
) {
    private val commands = mutableMapOf<String, ClientCommand>()
    private val history = ArrayDeque<String>(12)

    fun register(command: ClientCommand) {
        commands[command.name] = command
    }

    fun execute(input: String) {
        val parts = input.trim().split(" ")
        val name = parts[0].lowercase().trim()
        val args = parts.drop(1)

        val command = commands[name]
        if (command == null) {
            io.print("Неизвестная команда: '$name'. Введите 'help' для справки.")
            return
        }

        addToHistory(name)
        try {
            if (command.type == CommandType.MODEL) {
                val model = HumanBeingBuilder(io, networkManager).build()
                val res = command.execute(args, model)
                io.print(res)
            } else {
                val res = command.execute(args)
                io.print(res)
            }
        } catch (e: IllegalStateException) {
            io.print("[Ошибка выполнения] ${e.message}")
        }
    }

    fun getHistory(): List<String> = history.toList()

    fun getCommands(): Map<String, ClientCommand> = commands.toMap()

    private fun addToHistory(name: String) {
        if (history.size >= 12) history.removeFirst()
        history.addLast(name)
    }

    fun getCommandNames(): List<String> = commands.keys.toList()
}