using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using Pf2e.Common;
using Pf2e.Database;
using Pf2e.Database.Model;
using Pf2e.Database.Model.Base;
using Pf2e.Database.Model.Enum;
using Pf2e.Database.Model.Structure;
using Pf2e.Web.Helpers;
using Pf2e.Web.Helpers.Serialization;

namespace Pf2e.Web.Pages
{
    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
    public class Entity(Pf2eDbContext context) : PageModel
    {
        private readonly Pf2eDbContext _context = context;

        public FullEntity FullEntity { get; set; } = null!;
        public SerializationResult SerializationResult { get; set; } = null!;

        public IActionResult OnGet(string type, string slug)
        {
            try
            {
                EntityType entityType = EntityTypeModel.Enum<EntityType>(type);

                // Находим сущность по slug и типу
                Database.Model.Base.Entity? entity = _context
                    .Entities.AsNoTracking()
                    .FirstOrDefault(e =>
                        e.Slug.ToLower() == slug.ToLower() && e.Type == entityType
                    );

                if (entity == null)
                {
                    return NotFound();
                }

                // Создаём FullEntity
                FullEntity = new(_context, entityType, entity.Id);

                // Сериализуем для отображения
                EntitySerialization serializer = new();
                SerializationResult = serializer.Serialize(FullEntity.Entity);
                if (FullEntity.SubEntity is not null)
                {
                    SerializationResult.ExtendWith(serializer.Serialize(FullEntity.SubEntity));
                }

                // Set breadcrumbs
                string typeName = PgNameHelper.GetPgName(entityType);
                ViewData["Breadcrumbs"] = new List<(string, string)>
                {
                    ("Home", "/"),
                    (entityType.ToString(), $"/{typeName}"),
                    (entity.Name[Pf2e.Database.Model.Common.I18n.LocaleType.English], ""),
                };

                return Page();
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"Error in Entity.OnGet: {ex.Message}");
                Console.WriteLine($"Error in Entity.OnGet: {ex.Message}");
                return NotFound();
            }
        }
    }
}