using System;
using System.Collections.Generic;
using ShiroginSDK.Runtime.Modules.Data.Scripts.Enums;
using ShiroginSDK.Runtime.Modules.Events;
using ShiroginSDK.Runtime.Services.Base;
using ShiroginSDK.Runtime.Services.Interfaces;
using UnityEngine;

namespace ShiroginSDK.Runtime.Modules.Data.Scripts
{
    /// <summary>
    ///     Manages all in-game currencies and economy statistics.
    ///     Handles earning, spending, and analytics updates for currency-related events.
    /// </summary>
    [Serializable]
    public class EconomyData : BaseData
    {
        // ---- Currencies ----
        public int Gold;
        public int Gems;
        public int RewardedTicket;
        public int Keys;
        public int Energy;
        public int Hearts;

        // ---- Economy Stats ----
        public long TotalGoldEarned;
        public long TotalGoldSpent;
        public int TotalAdsWatched;
        public int TotalPurchases;

        // Cached service reference
        private IEventService _eventService;

        public EconomyData()
        {
            _eventService = ServiceLocator.Get<IEventService>();
        }

        protected override string PrefsKey => "ECONOMY_DATA";

        // ---- Currency Accessors ----
        public int GetCurrency(CurrencyType type)
        {
            return type switch
            {
                CurrencyType.Gold => Gold,
                CurrencyType.Gems => Gems,
                CurrencyType.RewardedTicket => RewardedTicket,
                CurrencyType.Keys => Keys,
                CurrencyType.Energy => Energy,
                CurrencyType.Hearts => Hearts,
                _ => 0
            };
        }

        // ---- Reward Granting ----
        public void GrantReward(CurrencyType type, int amount)
        {
            if (amount <= 0) return;

            var oldValue = GetCurrency(type);
            AddCurrency(type, amount);
            var newValue = GetCurrency(type);

            // 🔔 Event dispatch
            _eventService?.Invoke(new ShiroginEvents.Economy.CurrencyChangedEvent(type, oldValue, newValue));

            Debug.Log($"[EconomyData] {type} +{amount} granted (old: {oldValue}, new: {newValue})");
        }

        public void GrantReward(CurrencyType type, int amount, string source = "unknown")
        {
            if (amount <= 0) return;

            var oldValue = GetCurrency(type);
            AddCurrency(type, amount);
            var newValue = GetCurrency(type);

            // 🔔 Event dispatch
            _eventService?.Invoke(new ShiroginEvents.Economy.CurrencyChangedEvent(type, oldValue, newValue));
            _eventService?.Invoke(new ShiroginEvents.Rewards.RewardClaimedEvent(type.ToString(), source));

            // 📊 Analytics tracking
            if (source == "iap" || source == "bundle")
                AddPurchase();
            else if (source == "ad")
                AddAdWatch();

            Debug.Log($"[EconomyData] +{amount} {type} granted from [{source}] → new total: {newValue}");
        }

        // ---- Currency Management ----
        public void SetCurrency(CurrencyType type, int value)
        {
            value = Mathf.Max(0, value);

            switch (type)
            {
                case CurrencyType.Gold: Gold = value; break;
                case CurrencyType.Gems: Gems = value; break;
                case CurrencyType.RewardedTicket: RewardedTicket = value; break;
                case CurrencyType.Keys: Keys = value; break;
                case CurrencyType.Energy: Energy = value; break;
                case CurrencyType.Hearts: Hearts = value; break;
            }

            Save();
        }

        public void AddCurrency(CurrencyType type, int amount)
        {
            if (amount <= 0) return;

            switch (type)
            {
                case CurrencyType.Gold:
                    Gold += amount;
                    TotalGoldEarned += amount;
                    break;
                case CurrencyType.Gems: Gems += amount; break;
                case CurrencyType.RewardedTicket: RewardedTicket += amount; break;
                case CurrencyType.Keys: Keys += amount; break;
                case CurrencyType.Energy: Energy += amount; break;
                case CurrencyType.Hearts: Hearts += amount; break;
            }

            Save();
        }

        public bool HasEnough(CurrencyType type, int amount)
        {
            if (amount <= 0) return true;
            return GetCurrency(type) >= amount;
        }

        public bool SpendCurrency(CurrencyType type, int amount)
        {
            if (!HasEnough(type, amount)) return false;

            switch (type)
            {
                case CurrencyType.Gold:
                    Gold -= amount;
                    TotalGoldSpent += amount;
                    break;
                case CurrencyType.Gems: Gems -= amount; break;
                case CurrencyType.RewardedTicket: RewardedTicket -= amount; break;
                case CurrencyType.Keys: Keys -= amount; break;
                case CurrencyType.Energy: Energy -= amount; break;
                case CurrencyType.Hearts: Hearts -= amount; break;
            }

            Save();
            return true;
        }

        // ---- Multi-Currency Purchase ----
        public bool TryMultiPurchase(Dictionary<CurrencyType, int> cost, Action onSuccess = null, Action onFail = null)
        {
            foreach (var kv in cost)
                if (!HasEnough(kv.Key, kv.Value))
                {
                    onFail?.Invoke();
                    return false;
                }

            foreach (var kv in cost)
                SpendCurrency(kv.Key, kv.Value);

            onSuccess?.Invoke();
            return true;
        }

        public bool TryPurchase(int price, CurrencyType currency, Action onSuccess = null, Action onFail = null)
        {
            if (SpendCurrency(currency, price))
            {
                onSuccess?.Invoke();
                return true;
            }

            onFail?.Invoke();
            return false;
        }

        // ---- Analytics Tracking ----
        public void AddAdWatch()
        {
            TotalAdsWatched++;
            Save();
        }

        public void AddPurchase()
        {
            TotalPurchases++;
            Save();
        }
    }
}