using System.Collections.Generic;
using UnityEngine;

public static class DlcContentAccess
{
    public static bool IsSongAccessible(SongData song)
    {
        if (song == null)
        {
            return false;
        }

        dlcData owningDlc = SongDlcContentResolver.GetOwningDlc(song);
        return owningDlc == null || DlcOwnershipService.IsDlcOwned(owningDlc);
    }

    public static bool IsHeroAccessible(AllyHero_SO hero)
    {
        if (hero == null)
        {
            return false;
        }

        if (string.IsNullOrWhiteSpace(hero.sourceDlcId))
        {
            return true;
        }

        return DlcOwnershipService.IsDlcOwned(hero.sourceDlcId);
    }

    public static bool IsSkinAccessible(HeroSkinResolvedData skin)
    {
        if (skin == null)
        {
            return false;
        }

        if (skin.isBaseSkin || skin.unlockedByDefault)
        {
            return true;
        }

        if (string.IsNullOrWhiteSpace(skin.sourceDlcId))
        {
            return true;
        }

        return DlcOwnershipService.IsDlcOwned(skin.sourceDlcId);
    }

    public static HeroSkinResolvedData GetAccessibleSelectedSkin(AllyHero_SO hero, bool fallbackToBase = true)
    {
        if (hero == null)
        {
            return null;
        }

        HeroSkinResolvedData selected = hero.GetResolvedSelectedSkin(fallbackToBase);
        if (IsSkinAccessible(selected))
        {
            return selected;
        }

        return fallbackToBase ? HeroSkinResolver.BuildBaseSkin(hero) : null;
    }

    public static List<HeroSkinResolvedData> GetAccessibleSkinSet(AllyHero_SO hero, bool includeBaseSkin = true)
    {
        List<HeroSkinResolvedData> all = hero != null ? hero.GetResolvedSkinSet(includeBaseSkin) : new List<HeroSkinResolvedData>();
        List<HeroSkinResolvedData> result = new List<HeroSkinResolvedData>(all.Count);

        for (int i = 0; i < all.Count; i++)
        {
            HeroSkinResolvedData skin = all[i];
            if (IsSkinAccessible(skin))
            {
                result.Add(skin);
            }
        }

        return result;
    }
}