using Common.Library;
using GreadyPoang.DataLayer.Database;
using GreadyPoang.EntityLayer;
using Microsoft.EntityFrameworkCore;

namespace GreadyPoang.DataLayer;

public class ParticipantRepository : IRepository<Participant>
{
    private readonly DataContext _dataContext;

    public ParticipantRepository(DataContext dataContext)
    {
        _dataContext = dataContext;
    }
    public async Task<IEnumerable<Participant>> Get()
    {
        return await _dataContext.Participants.ToListAsync();
    }
    public async Task<Participant?> Get(int id)
    {
        // Fix: Use FindAsync with key value array, not a predicate
        return await _dataContext.Participants.FindAsync(id);
    }
    public async Task<int> Save(Participant entity)
    {
        var res = -1;
        if (string.IsNullOrEmpty(entity.FirstName)
            || string.IsNullOrEmpty(entity.LastName))
        {
            return res; // Validation failed
        }

        if (entity.ParticipantId == 0)
        {
            _dataContext.Participants.Add(entity);
            await _dataContext.SaveChangesAsync();
            res = entity.ParticipantId;
        }
        else
        {
            _dataContext.Participants.Update(entity);
            await _dataContext.SaveChangesAsync();
            res = entity.ParticipantId;
        }
        return res;

    }
    public bool Delete(Participant entity)
    {
        var res = false;
        try
        {
            _dataContext.Participants.Remove(entity);
            _dataContext.SaveChanges();
            res = true;
        }
        catch (Exception ex)
        {
            System.Diagnostics.Debug.WriteLine($"Error deleting participant: {ex.Message}");
            res = false;
        }
        return res;
    }
}