using Sandbox;
using System.Collections.Generic;
using System.Linq;

public class PushItem
{
    public string Id { get; set; }
    public string NameRu { get; set; }
    public string NameEn { get; set; }
    public int Cost { get; set; }
    public float ForceMultiplier { get; set; }
    public string Key { get; set; }
    public bool IsUnlocked { get; set; }

    public string GetName( string lang ) => lang == "EN" ? NameEn : NameRu;
}

public class ShopManager : Component
{
    public static ShopManager Instance { get; private set; }

    public List<PushItem> Items { get; private set; } = new()
    {
        new PushItem { Id = "basic", NameRu = "Обычный", NameEn = "Basic", Cost = 0, ForceMultiplier = 1.0f, Key = "1", IsUnlocked = true },
        new PushItem { Id = "heavy", NameRu = "Тяжелый", NameEn = "Heavy", Cost = 10, ForceMultiplier = 1.5f, Key = "2", IsUnlocked = false },
        new PushItem { Id = "force", NameRu = "Импульс", NameEn = "Impulse", Cost = 25, ForceMultiplier = 2.2f, Key = "3", IsUnlocked = false },
        new PushItem { Id = "mega", NameRu = "Мега-толчок", NameEn = "Mega Push", Cost = 50, ForceMultiplier = 3.5f, Key = "4", IsUnlocked = false }
    };

    public PushItem SelectedItem { get; private set; }

    protected override void OnStart()
    {
        Instance = this;
        SelectedItem = Items.FirstOrDefault( x => x.IsUnlocked );
    }

    protected override void OnUpdate()
    {
        if ( Input.Pressed( "slot1" ) ) SelectByKey( "1" );
        if ( Input.Pressed( "slot2" ) ) SelectByKey( "2" );
        if ( Input.Pressed( "slot3" ) ) SelectByKey( "3" );
        if ( Input.Pressed( "slot4" ) ) SelectByKey( "4" );
    }

    public void SelectByKey( string key )
    {
        var item = Items.FirstOrDefault( x => x.Key == key );
        if ( item != null ) TryBuyOrSelect( item );
    }

    public bool TryBuyOrSelect( PushItem item )
    {
        if ( item.IsUnlocked )
        {
            SelectedItem = item;
            return true;
        }

        int currentScore = ScoreManager.Instance?.Score ?? 0;
        if ( currentScore >= item.Cost )
        {
            item.IsUnlocked = true;
            SelectedItem = item;
            return true;
        }

        return false;
    }

    public float GetCurrentForceMultiplier()
    {
        return SelectedItem?.ForceMultiplier ?? 1.0f;
    }
}