using Marco.Pms.DataAccess.Data;
using Marco.Pms.DataAccess.Repository.IRepository;
using Microsoft.EntityFrameworkCore;
using System.Linq.Expressions;

namespace Marco.Pms.DataAccess.Repository
{
    public class Repository<T> : IRepository<T> where T : class
    {
        private readonly ApplicationDbContext _context;
        internal DbSet<T> dbSet;
        public Repository(ApplicationDbContext context)
        {
            _context = context;
            this.dbSet = _context.Set<T>();

            //_db.Products.Include(u => u.Category);
        }
        public void Add(T entity)
        {
            dbSet.Add(entity);
        }

        public T Get(Expression<Func<T, bool>> filter, string? includeProperties = null, bool tracked = false)
        {
            IQueryable<T> query = dbSet;
            if (tracked)
            {
                query = query.Where(filter);
            }
            else
            {
                query = query.AsNoTracking().Where(filter);
            }

            if (!string.IsNullOrEmpty(includeProperties))
            {
                foreach (var includeProp in includeProperties.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
                {
                    query = query.Include(includeProp);
                }
            }

            return query.FirstOrDefault();

        }

        public async Task<T> GetAsync(Expression<Func<T, bool>> filter, bool tracked = false, params Expression<Func<T, object>>[] includeProperties)
        {
            IQueryable<T> query = dbSet;
            if (tracked)
            {
                query = query.Where(filter);
            }
            else
            {
                query = query.AsNoTracking().Where(filter);
            }

            if (includeProperties != null)
            {
                foreach (var includeProp in includeProperties)
                {
                    query = query.Include(includeProp);
                }
            }

            return await query.SingleOrDefaultAsync();

        }

        public IEnumerable<T> GetAll(Expression<Func<T, bool>>? filter = null, string? includeProperties = null)
        {
            IQueryable<T> query = dbSet;
            if(filter != null)
            {
                query.Where(filter);
            }
            if (!string.IsNullOrEmpty(includeProperties))
            {
                foreach (var includeProp in includeProperties.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
                {
                    query = query.Include(includeProp);
                }
            }
            return query.ToList();

        }

        public void Remove(T entity)
        {
            dbSet.Remove(entity);
        }

        public void RemoveRange(IEnumerable<T> entity)
        {
            dbSet.RemoveRange(entity);
        }

       
    }
}