using Microsoft.EntityFrameworkCore;
using SVSim.Database;
using SVSim.Database.Enums;
using SVSim.Database.Models;

namespace SVSim.EmulatedEntrypoint.Services;

public class DbCardPoolProvider : ICardPoolProvider
{
    private readonly SVSimDbContext _db;
    public DbCardPoolProvider(SVSimDbContext db) { _db = db; }

    public IReadOnlyList<ShadowverseCardEntry> GetPool(PackConfigEntry pack)
    {
        switch (pack.PackCategory)
        {
            case PackCategory.None:
            case PackCategory.LegendCardPack:
                return _db.CardSets
                    .Where(s => s.Id == pack.BasePackId)
                    .SelectMany(s => s.Cards)
                    .Where(c => !c.IsFoil)
                    .ToList();

            case PackCategory.SpecialCardPack:
            case PackCategory.LimitedSpecialCardPack:
                return _db.CardSets
                    .Where(s => s.IsInRotation)
                    .SelectMany(s => s.Cards)
                    .Where(c => !c.IsFoil)
                    .Distinct()
                    .ToList();

            default:
                return Array.Empty<ShadowverseCardEntry>();
        }
    }

    public ShadowverseCardEntry? TryGetFoilTwin(long baseCardId) =>
        _db.Cards.FirstOrDefault(c => c.Id == baseCardId + 1 && c.IsFoil);
}