using EonaCat.DoxaApi.Attributes;
using Microsoft.AspNetCore.Mvc;
using SampleApi.Models;

namespace SampleApi.Controllers
{
    [ApiController]
    [Route("api/users")]
    [DoxaApiGroup("Users")]
    public class UsersController : ControllerBase
    {
        private static readonly List<User> _users = new()
        {
            new User { Id = Guid.NewGuid(), Name = "Ada Lovelace", Email = "ada@example.com", Role = UserRole.Admin, CreatedAt = DateTime.UtcNow },
            new User { Id = Guid.NewGuid(), Name = "Alan Turing", Email = "alan@example.com", Role = UserRole.Member, CreatedAt = DateTime.UtcNow },
        };

        [HttpGet]
        public ActionResult<List<User>> GetUsers([FromQuery] UserRole? role, [FromQuery] int page = 1)
        {
            var query = _users.AsEnumerable();
            if (role is not null)
            {
                query = query.Where(u => u.Role == role);
            }

            return Ok(query.ToList());
        }

        [HttpGet("{id}")]
        public ActionResult<User> GetById(Guid id)
        {
            var user = _users.FirstOrDefault(u => u.Id == id);
            return user is null ? NotFound() : Ok(user);
        }

        [HttpPost]
        [DoxaApiExample("""
    {
      "name": "Grace Hopper",
      "email": "grace@example.com",
      "role": "Member",
      "address": { "street": "1 Compiler Way", "city": "Arlington", "postalCode": "22201", "country": "US" }
    }
    """)]
        public ActionResult<User> Create([FromBody] CreateUserRequest request)
        {
            var user = new User
            {
                Id = Guid.NewGuid(),
                Name = request.Name,
                Email = request.Email,
                Role = request.Role,
                Address = request.Address,
                CreatedAt = DateTime.UtcNow
            };
            _users.Add(user);
            return CreatedAtAction(nameof(GetById), new { id = user.Id }, user);
        }

        [HttpPatch("{id}")]
        public ActionResult<User> Update(Guid id, [FromBody] UpdateUserRequest request)
        {
            var user = _users.FirstOrDefault(u => u.Id == id);
            if (user is null)
            {
                return NotFound();
            }

            if (request.Name is not null)
            {
                user.Name = request.Name;
            }

            if (request.Email is not null)
            {
                user.Email = request.Email;
            }

            if (request.Role is not null)
            {
                user.Role = request.Role.Value;
            }

            return Ok(user);
        }

        [HttpDelete("{id}")]
        [Obsolete("Use POST /api/users/{id}/archive instead.")]
        public IActionResult Delete(Guid id)
        {
            var user = _users.FirstOrDefault(u => u.Id == id);
            if (user is null)
            {
                return NotFound();
            }

            _users.Remove(user);
            return NoContent();
        }
    }
}