using TMPro;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class SkinShopManager : MonoBehaviour
{
    public static SkinShopManager instance;
    public RocketSkinStats rocketStats;
    public RocketSkinStats rocketPrices;
    public static RocketSkinStats RocketStats;
    // public static bool availableToUpgrade;
    public NewSkinDisplay newSkinDisplay;
    public Building skinShopBuilding;
    public SkinsData skinsData;
    public static SkinsData SkinsData;
    public GameObject popup;

    public GameObject listItemPrefab;
    public Transform listItemsParent;
    public Button btn_Equip;
    public Button btn_Buy;
    public TMP_Text txt_buy_gold,txt_buy_metal;
    public Button btn_Upgrade;
    public RocketUpgradePanel upgradePanel;

    public static SkinShopItemData selectedSkin;
    public int[] prices;
    public static int[] Prices => instance.prices;
    List<SkinShopItem> skinShopItems=new List<SkinShopItem>();
    
    void Awake() {
        instance = this;
        RocketStats = rocketStats;
        SkinsData = skinsData;
    }
    void Start()
    {
        Populate();

        btn_Equip.onClick.AddListener(onEquip);
        btn_Buy.onClick.AddListener(onBuy);
        btn_Upgrade.onClick.AddListener(onUpgrade);
    }

    public void Show(){
        Populate();
        popup.SetActive(true);
    }
    List<SkinShopItemData> skinsAvailableToPurchase=  new List<SkinShopItemData>();
    public void Populate(){
        // int purchasedFlagships=0;
        // int flagshipsCount=0;

        //Validate skins list
        if(DBmanager.SkinsPurchased.Count <=0){
            foreach(SkinShopItemData skin in skinsData.skins){
                if(skin.price_metal==0 && skin.price_gold==0){ //Defaults
                    DBmanager.PurchaseSkin(skin);
                    if(GetEquipedSkin().Length <=0){
                        EquipSkin(skin.name);
                    }
                }
            }
        }

        //PURGE
        for(int i=0;i < listItemsParent.childCount;i++){
            Destroy(listItemsParent.GetChild(i).gameObject);
        }
        skinsAvailableToPurchase = new List<SkinShopItemData>();
        skinShopItems = new List<SkinShopItem>();
        for(int i=0; i<skinsData.skins.Length;i++){
            int rarity = getRarityInt(skinsData.skins[i]);
            // bool isAvailable = skinShopBuilding.curLevel >= rarity;
            // if(!isAvailable){continue;}
           

            bool isOwned = DBmanager.GetSkinIdByName(skinsData.skins[i].name) >= 0;
            
            // if(skinShopBuilding.curLevel == rarity){
            //     flagshipsCount++;
            //     if(isOwned){
            //         purchasedFlagships++;
            //     }
            // }

            if(!isOwned){
                // skinsAvailableToPurchase.Add(skinsData.skins[i]);
            }else{
                if(!DBmanager.GetSkinByName(skinsData.skins[i].name).built){
                    continue;
                }
                SkinShopItem newItem = Instantiate(listItemPrefab, listItemsParent).GetComponent<SkinShopItem>();
                
                newItem.Set(skinsData.skins[i],isOwned);
                skinShopItems.Add(newItem);
            }

            
            // newItem.backgroundImg.color = (skinsData.skins[i].skinType==SkinType.Base) ? basicColor : (skinsData.skins[i].skinType==SkinType.Rare ? rareColor : legendaryColor);
        }
        Debug.Log("Question ships: " +skinsAvailableToPurchase.Count);
        foreach(SkinShopItemData skin in skinsAvailableToPurchase){
            int rarity = getRarityInt(skin);
            SkinShopItem newItem = Instantiate(listItemPrefab, listItemsParent).GetComponent<SkinShopItem>();
            newItem.Set(skin,false);
            skinShopItems.Add(newItem);
        }

        // availableToUpgrade = purchasedFlagships >= ((float)flagshipsCount/2f);

        SelectItem(selectedSkin,true);
    }

    int getRarityInt(SkinShopItemData skin){
        int rarity = 0;
        if(skin.skinType == SkinType.Rare){rarity=1;}
        if(skin.skinType == SkinType.Legendary){rarity=3;}
        if(skin.skinType == SkinType.Epic){rarity=2;}

        return rarity;
    }

    public void SelectItem(int index){
        skinShopItems[index].OnClick();
    }

    public void SelectItem(SkinShopItemData data, bool Available){
        selectedSkin = data;
        if(data==null){
            btn_Equip.gameObject.SetActive(false); btn_Buy.gameObject.SetActive(false);
            return;
        }
        if(DBmanager.GetSkinIdByName(data.name)>=0){ // <-- purchased
            btn_Equip.gameObject.SetActive(true);
            btn_Upgrade.gameObject.SetActive(getRarityInt(data) <= skinShopBuilding.curLevel);
            btn_Buy.gameObject.SetActive(false);
            btn_Equip.interactable = GetEquipedSkin() != data.name; // <-- disable equip button if already equipped
        }else{
            btn_Buy.gameObject.SetActive(true);
            btn_Equip.gameObject.SetActive(false);
            btn_Upgrade.gameObject.SetActive(false);
            bool affordable = DBmanager.Metal >= data.price_metal && DBmanager.Coins >= data.price_gold;
            btn_Buy.interactable = affordable;
            txt_buy_gold.text = data.price_gold.ToString();
            txt_buy_metal.text = data.price_metal.ToString();
            txt_buy_gold.gameObject.SetActive(data.price_gold > 0);
            txt_buy_metal.gameObject.SetActive(data.price_metal > 0);
        }

        foreach(SkinShopItem item in skinShopItems){
            item.OnSelectionChanged(data.name);
        }

        AudioManager.instnace.UIClick();
    }

    void onEquip(){
        EquipSkin(selectedSkin.name);
        Populate();
    }

    public void EquipSkin(SkinShopItemData skin){
        EquipSkin(skin.name);
        Populate();
    }

    void onUpgrade(){
        upgradePanel.Show(selectedSkin.name);
    }

    public void onBuy(){
        List<SkinShopItemData> skinsInSameRarity = new List<SkinShopItemData>();
        foreach(SkinShopItemData skin in skinsAvailableToPurchase){
            if(skin.skinType == selectedSkin.skinType){
                skinsInSameRarity.Add(skin);
            }
        }

        SkinShopItemData randomSkin = skinsInSameRarity[UnityEngine.Random.Range(0,skinsInSameRarity.Count)];

        DBmanager.PurchaseSkin(randomSkin);
        SkinShopManager.instance.Populate();
        newSkinDisplay.Show(randomSkin);
    }

    public static void EquipSkin(string skin){
        PlayerPrefs.SetString("shipSkin", skin);
        PlayerPrefs.Save();
    }


    //Helpers
    public static string GetEquipedSkin(){
        if(PlayerPrefs.HasKey("shipSkin")){
            return PlayerPrefs.GetString("shipSkin");
        }

        return "Default";
    }

    public static int GetRarityIndexFromName(string name){
        int rarityIndex = 0;

        foreach(SkinShopItemData item in SkinsData.skins){
            if(item.name == name){
                //this is it
                if(item.price_gold <= 0 && item.price_metal <=0){
                    rarityIndex=0;
                }else if(item.skinType == SkinType.Base){
                    rarityIndex=1;
                }else if(item.skinType == SkinType.Rare){
                    rarityIndex = 2;
                }else if(item.skinType == SkinType.Epic){
                    rarityIndex = 3;
                }else{
                    rarityIndex=4;
                }

                break;
            }
        }

        return rarityIndex;
    }
    public static SkinShopItemData GetSkinDataByName(string name){
        int rarityIndex = 0;

        foreach(SkinShopItemData item in SkinsData.skins){
            if(item.name == name){
                //this is it
                return item;
            }
        }

        return null;
    }

    public static SkinType GetRarityFromName(string name){
        return GetRarityFromIndex(GetRarityIndexFromName(name));
    }

    public static SkinType GetRarityFromIndex(int id){
        if(id==0){
            return SkinType.Default;
        }else if(id==1){
            return SkinType.Base;
        }else if(id==2){
            return SkinType.Rare;
        }else if(id ==3){
            return SkinType.Epic;
        }else{
            return SkinType.Legendary;
        }
    }


    public static Color getRarityColor(SkinShopItemData skin){
        Color color = new Color(0,1,0);
        if(skin.skinType == SkinType.Rare){
            color = new Color(0,1,1);
        }else if(skin.skinType == SkinType.Legendary){
            color = new Color(1,0,0);
        }

        return color;
    }
    
    public static RocketLevel[] GetStatsForRarity(SkinShopItemData data){
        if(data.price_gold == 0 && data.price_metal ==0){
            return RocketStats.baseLevels;
        }else if(data.skinType == SkinType.Base){
            return RocketStats.commonLevels;
        }else if(data.skinType == SkinType.Rare){
            return RocketStats.rareLevels;
        }else if(data.skinType == SkinType.Epic){
            return RocketStats.epicLevels;
        }else{
            return RocketStats.legendaryLevels;
        }
    }

    public static RocketLevel[] GetStatsForRarity(SkinType data){
        if(data == SkinType.Default){
            return RocketStats.baseLevels;
        }else if(data == SkinType.Base){
            return RocketStats.commonLevels;
        }else if(data == SkinType.Rare){
            return RocketStats.rareLevels;
        }else if(data == SkinType.Epic){
            return RocketStats.epicLevels;
        }else{
            return RocketStats.legendaryLevels;
        }
    }
    public static RocketLevel[] GetPriceForRarity(SkinType data){
        if(data == SkinType.Default){
            return instance.rocketPrices.baseLevels;
        }else if(data == SkinType.Base){
            return instance.rocketPrices.commonLevels;
        }else if(data == SkinType.Rare){
            return instance.rocketPrices.rareLevels;
        }else if(data == SkinType.Epic){
            return instance.rocketPrices.epicLevels;
        }else{
            return instance.rocketPrices.legendaryLevels;
        }
    }

    public static string GetRarityName(SkinType data){
        if(data == SkinType.Default){
            return "Basic";
        }else if(data == SkinType.Base){
            return "Common";
        }else if(data == SkinType.Rare){
            return "Rare";
        }else if(data == SkinType.Epic){
            return "Epic";
        }else{
            return "Legendary";
        }
    }

    public static Color GetRarityColor(SkinType data){
        if(data == SkinType.Default){
            return Color.grey;
        }else if(data == SkinType.Base){
            return Color.green;

        }else if(data == SkinType.Rare){
            return Color.blue;

        }else if(data == SkinType.Epic){
            return Color.magenta;

        }else{
            return Color.red;
        }
    }
}

[Serializable]public class SkinShopItemData{
    public string name;
    public Sprite image;
    public int price_gold,price_metal;
    public SkinType skinType;
}


public enum SkinType{
    Default,
    Base,
    Rare,
    Legendary,
    Epic
}

[Serializable]
public class RocketLevel{
    public int Level;
    public int goldCost;
    public int metalCost;
    public float moonMultiplier;
    public float speedMultiplier;
    public float boostConsumption;
}