using Microsoft.EntityFrameworkCore;
using SurveyLib.Core.Models;
using SurveyLib.Core.Repositories;
using SurveyLib.Infrastructure.EFCore.Data;

namespace SurveyLib.Infrastructure.EFCore.Repositories;

public class AnswerVariantsRepository : IAnswerVariantsRepository
{
    private readonly SurveyDbContext _context;

    public AnswerVariantsRepository(SurveyDbContext context)
    {
        _context = context;
    }

    public async Task<AnswerVariant?> GetByIdAsync(int id)
    {
        return await _context.AnswerVariants.FindAsync(id);
    }

    public async Task<IEnumerable<AnswerVariant>> GetAllAsync()
    {
        return await _context.AnswerVariants.ToListAsync();
    }

    public async Task AddAsync(AnswerVariant entity)
    {
        await _context.AnswerVariants.AddAsync(entity);
        await _context.SaveChangesAsync();
    }

    public async Task UpdateAsync(AnswerVariant entity)
    {
        _context.AnswerVariants.Update(entity);
        await _context.SaveChangesAsync();
    }

    public async Task DeleteAsync(int id)
    {
        await _context.AnswerVariants.Where(av => av.Id == id).ExecuteDeleteAsync();
        await _context.SaveChangesAsync();
    }

    public async Task<IEnumerable<AnswerVariant>> GetAnswerVariantsByQuestionIdAsync(int questionId)
    {
        return await _context.AnswerVariants.Where(av => av.QuestionId == questionId).ToListAsync();
    }
}