using PrizeSystem;
using System;
using UnityEngine;

public static class PaymentSystem
{
    public static int Balance { get; private set; }

    public static event Action<int> onCoinAdded;
    public static event Action<int> onCoinRemoved;
    public static event Action<int> OnBalanceChanged;
    public static event Action<int> OnRevenueReceived;
    public static event Action OnNotEnoughMoney;
    public static event Action OnPaymentDataChanged;

    public static bool Freeplay { get; private set; }
    public static int ValutaPerImpulse { get; private set; }
    public static string ValutaName { get; private set; }
    public static int PricePve { get; private set; }
    public static int PricePvp { get; private set; }
    public static int PriceRevengePve { get; private set; }
    public static int PriceRevengePvP { get; private set; }
    public static int PulsesCounter { get; private set; }

    public static void Initialize()
    {
        Balance = LoadBalance();
        ComWrapper.PaymentReceived += AddCredit;

        ApplySettings();
        SettingsManager.OnSettingsChanged += ApplySettings;
    }

    public static bool TryPay(int amount)
    {
        if (Freeplay) return true;

        if (Balance >= amount)
        {
            ChangeBalance(-amount);
            return true;
        }
        else
        {
            OnNotEnoughMoney?.Invoke();
            return false;
        }
    }

    public static bool TryPayForMode(GameMode mode)
    {
        return TryPay(GetModePrice(mode));
    }

    public static void AddCredit()
    {
        ChangeBalance(ValutaPerImpulse);

        //вот это вот некрасивое надо куда то девать.
        PlayerPrefs.SetInt(PrefsKeyVault.CASH_COUNTER, PlayerPrefs.GetInt(PrefsKeyVault.CASH_COUNTER) + ValutaPerImpulse);
        PlayerPrefs.SetInt(PrefsKeyVault.CASH_COUNTER_NUL, PlayerPrefs.GetInt(PrefsKeyVault.CASH_COUNTER_NUL) + ValutaPerImpulse);
        OnRevenueReceived?.Invoke(ValutaPerImpulse);

        if (SettingsManager.GetString(SettingKey.DIFFICULTY_MODE) == "Заработок")
        {
            IncrementPulsesCounter();
        }
    }

    public static void AddCreditNoCounters(int amount) => ChangeBalance(amount);

    public static void ReturnCredits(GameMode gameMode)
        => ReturnCredits(Freeplay ? 0 : GetModePrice(gameMode));

    public static void ReturnCredits(int amount)
    {
        if (amount <= 0)
            return;

        ChangeBalance(amount);
    }

    public static void ResetBalance()
    {
        int delta = -Balance;
        ChangeBalance(delta);
    }

    public static int GetRevengePrice(GameMode gameMode) => gameMode == GameMode.pve ? PriceRevengePve : PriceRevengePvP;

    public static int GetModePrice(GameMode gameMode) => gameMode == GameMode.pve ? PricePve : PricePvp;

    private static void ApplySettings()
    {
        Freeplay = SettingsManager.GetBool(SettingKey.FREEPLAY);
        ValutaPerImpulse = PlayerPrefs.GetInt("ValutaPerImpulse", 10);
        ValutaName = PlayerPrefs.GetString("ValutaName", "руб.");
        ValutaName = SettingsManager.GetString(SettingKey.VALUTA_NAME);

        PricePve = SettingsManager.GetInt(SettingKey.PRICE_PVE);
        PricePvp = SettingsManager.GetInt(SettingKey.PRICE_PVP);
        PriceRevengePve = SettingsManager.GetInt(SettingKey.PRICE_REVENGE_PVE);
        PriceRevengePvP = SettingsManager.GetInt(SettingKey.PRICE_REVENGE_PVP);

        PulsesCounter = PlayerPrefs.GetInt("PulsesCounter", 0);

        OnPaymentDataChanged?.Invoke();
    }

    private static void ChangeBalance(int delta)
    {
        if (delta == 0) return;

        Balance += delta;
        Balance = Mathf.Max(Balance, 0);
        SaveBalance();

        if (delta > 0) onCoinAdded?.Invoke(delta);
        else onCoinRemoved?.Invoke(delta);
        OnBalanceChanged?.Invoke(Balance);
    }

    private static void SaveBalance() => PlayerPrefs.SetInt("CoinsCount", Balance);
    private static int LoadBalance() => PlayerPrefs.GetInt("CoinsCount", 0);

    public static void IncrementPulsesCounter()
    {
        PulsesCounter += 1;
        PlayerPrefs.SetInt("PulsesCounter", PulsesCounter);
    }

    public static void ResetPulsesCounter()
    {
        PulsesCounter = 0;
        PlayerPrefs.SetInt("PulsesCounter", PulsesCounter);
    }

    public static string GetPriceString(GameMode mode)
    {
        if (Freeplay)
        {
            return "бесплатно";
        }
        else
        {
            return GetPluralizedMoney(GetModePrice(mode));
        }
    }

    public static string GetPluralizedMoney(int amount) => $"{amount} {PluralizeUtil.GetValutaPluralized(ValutaName, amount)}";
}