using Domain.Entities;
using Domain.Generics;
using Microsoft.EntityFrameworkCore;
using Models.Helpers;
using Models.Interfaces;
using Models.Models;

namespace Models.Repositories
{
    public class PhLSMProductRepository(PhronCareOperationsHubContext context) : IPhLSMProductRepository
    {
        private readonly PhronCareOperationsHubContext _context = context;

        public async Task<PagedResult<ELSProduct>> SearchAsync(LSProductSearchParams searchParams)
        {
            var query = _context.PhLsmProducts
                .Include(p => p.Division)
                .Include(p => p.Unit)
                .AsQueryable();

            if (!string.IsNullOrWhiteSpace(searchParams.Code))
            {
                var lowered = searchParams.Code.ToLower();
                query = query.Where(p =>
                    (!string.IsNullOrEmpty(p.FactoryCode) && p.FactoryCode.ToLower().Contains(lowered)) ||
                    (!string.IsNullOrEmpty(p.ExternalCode) && p.ExternalCode.ToLower().Contains(lowered)));
            }

            if (!string.IsNullOrWhiteSpace(searchParams.Description))
            {
                var lowered = searchParams.Description.ToLower();
                query = query.Where(p =>
                    (!string.IsNullOrEmpty(p.Name) && p.Name.ToLower().Contains(lowered)) ||
                    (!string.IsNullOrEmpty(p.Descripcion) && p.Descripcion.ToLower().Contains(lowered)));
            }

            if (searchParams.ProductType.HasValue)
                query = query.Where(p => p.ProductType == searchParams.ProductType);

            if (searchParams.TraceabilityType.HasValue)
                query = query.Where(p => p.TraceabilityType == searchParams.TraceabilityType);

            if (searchParams.DivisionId.HasValue)
                query = query.Where(p => p.DivisionId == searchParams.DivisionId);

            if (searchParams.UnitId.HasValue)
                query = query.Where(p => p.UnitId == searchParams.UnitId);

            if (searchParams.PlusProcess.HasValue)
                query = query.Where(p => p.PlusProcess == searchParams.PlusProcess);

            var paged = await query.ToPagedResultAsync(searchParams.Page, searchParams.PageSize);

            return new PagedResult<ELSProduct>
            {
                Items = paged.Items.Select(EntityMapper.MapEntity<PhLsmProduct, ELSProduct>),
                TotalItems = paged.TotalItems,
                Page = paged.Page,
                PageSize = paged.PageSize
            };
        }

        public async Task<ELSProduct?> GetByIdAsync(int id)
        {
            var entity = await _context.PhLsmProducts
                .Include(p => p.Division)
                .Include(p => p.Unit)
                .FirstOrDefaultAsync(p => p.Id == id);

            return entity != null ? EntityMapper.MapEntity<PhLsmProduct, ELSProduct>(entity) : null;
        }

        public async Task<ELSProduct> CreateAsync(ELSProduct entity)
        {
            var mapped = EntityMapper.MapEntity<ELSProduct, PhLsmProduct>(entity);
            _context.PhLsmProducts.Add(mapped);
            await _context.SaveChangesAsync();
            return EntityMapper.MapEntity<PhLsmProduct, ELSProduct>(mapped);
        }

        public async Task<bool> UpdateAsync(ELSProduct entity)
        {
            var existing = await _context.PhLsmProducts.FindAsync(entity.Id);
            if (existing == null) return false;

            EntityMapper.MapEntityToExisting(entity, existing);
            await _context.SaveChangesAsync();
            return true;
        }

        public async Task<bool> DeleteAsync(int id)
        {
            var entity = await _context.PhLsmProducts.FindAsync(id);
            if (entity == null) return false;

            _context.PhLsmProducts.Remove(entity);
            await _context.SaveChangesAsync();
            return true;
        }
    }
}