using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PasswordCatcher : MonoBehaviour
{
    bool passwordForSettings;
    private void Start()
    {
        passwordForSettings = SettingsManager.GetBool("PasswordOnSettings", false);
        SettingsManager.OnSettingsChanged.AddListener(ApplySettings);
    }


    void ApplySettings()
    {
        bool passwordForSettingsNewValue = SettingsManager.GetBool("PasswordOnSettings", false);
        if (NeedToSetPassword(passwordForSettingsNewValue))
        {
            passwordForSettings = passwordForSettingsNewValue;
            GameManager.instance.stateMachine.ChangeState(new SetupPasswordState());
        }
        if (NeedToRemovePassword(passwordForSettingsNewValue))
        {
            ExternalFilesGetter.SetPassword("");
            print("Пароль сброшен");
        }
    }

    bool NeedToRemovePassword(bool newValue)
    {
        //значение поменялось на не нужен пароль
        return newValue != passwordForSettings && newValue == false;
    }
    bool NeedToSetPassword(bool passwordForSettingsNewValue)
    {
        //поменялось значение настройки на "Пароль нужен"
        bool changeStateToNeedPassword = passwordForSettingsNewValue != passwordForSettings && passwordForSettingsNewValue;
        if (changeStateToNeedPassword) return true;

        //Должен быть пароль но его нет или он не валидный.
        if(passwordForSettingsNewValue && PasswordFileNonValid()) return true;

        return false;
    }

    bool PasswordFileNonValid()
    {
        string password = ExternalFilesGetter.GetSettingsPassword();
        if (password == null) return true;
        if(password.Length % 2 == 1) return true;//длина должны быть четной
        if (!PwdCombinationsValid(SplitPasswordIntoPairs(password))) return true; // парольные комбинации валидны?

        return false;
    }

    List<string> SplitPasswordIntoPairs(string password)
    {
        List<string> result = new List<string>();
        for (int i = 0; i < password.Length; i += 2)
        {
            result.Add(password.Substring(i, 2));
        }

        return result;
    }

    bool PwdCombinationsValid(List<string> combinations)
    {
        List<string> validCombinations = new List<string> { "L1", "L2", "R1", "R2", "A1", "A2", "P1", "P2" };

        foreach (string combination in combinations)
        {
            if (!validCombinations.Contains(combination)) return false;
        }
        return true;
    }

}