using Application.Interfaces.Repositories;
using Application.Interfaces.Services;
using Domain.Entities;

namespace Application.Services;

public class KillService(IKillRepository repository, IUserService userService) : IKillService
{
    private IKillRepository Repository { get; } = repository;
    
    public IEnumerable<Kill> GetAllKills()
    {
        return Repository.GetAllKills();
    }

    public Kill GetKillById(int id)
    {
        if (!Repository.TryGetKillById(id, out var kill))
        {
            throw new KeyNotFoundException($"Failed to find kill with id: {id}");
        }

        return kill;
    }

    public IEnumerable<Kill> GetKillsByUserId(int userId)
    {
        return Repository.GetAllKills().Where(x => x.UserId == userId);
    }

    public IEnumerable<Kill> GetKillsByUserId(IEnumerable<int> userIds)
    {
        return Repository.GetAllKills().Where(x => userIds.Contains(x.UserId));
    }

    public bool AddKill(Kill kill)
    {
        Repository.AddKill(kill);
        var user = userService.GetUserById(kill.UserId);
        user.Kills.Append(kill);
        return true;
    }

    public bool RemoveKill(Kill kill)
    {
        return Repository.RemoveKill(kill);
    }
}