using back.ApiService.context;
using back.ApiService.models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace back.ApiService.controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class PhotoController(PhotoContext photoContext) : ControllerBase
    {
        private readonly PhotoContext _photoContext = photoContext;

        // GET: api/<PhotoController>
        [HttpGet]
        public async Task<ActionResult<IEnumerable<Photo>>> Get([FromQuery] int page = 1, [FromQuery] int pageSize = 20)
        {
            if (page < 1) page = 1;
            if (pageSize < 1) pageSize = 20;

            var totalItems = await _photoContext.Photos.CountAsync();
            var photos = await _photoContext.Photos
                .OrderByDescending(p => p.CreatedAt)
                .Skip((page - 1) * pageSize)
                .Take(pageSize)
                .ToListAsync();

            Response.Headers.Append("X-Total-Count", totalItems.ToString());

            return Ok(photos);
        }

        // GET api/<PhotoController>/5
        [HttpGet("{id}")]
        public async Task<ActionResult<Photo>> Get(Guid id)
        {
            var photo = await _photoContext.Photos.FindAsync(id);
            if (photo == null)
                return NotFound();
            return photo;
        }

        // POST api/<PhotoController>
        [HttpPost]
        public async Task<ActionResult<Photo>> Post([FromForm] string title, [FromForm] string description, [FromForm] List<string> tags, [FromForm] List<string> personsIn, [FromForm] IFormFile image)
        {
            if (image == null || image.Length == 0)
                return BadRequest("No image uploaded.");

            var photo = PhotoBuilder.Build(title, description, tags, personsIn, image);

            // Guarda la información en la base de datos
            _photoContext.Photos.Add(photo);
            await _photoContext.SaveChangesAsync();

            return CreatedAtAction(nameof(Get), new { id = photo.Id }, photo);
        }

        // PUT api/<PhotoController>/5
        [HttpPut("{id}")]
        public async Task<IActionResult> Put(Guid id, [FromBody] Photo photo)
        {
            if (id != photo.Id)
                return BadRequest();

            _photoContext.Entry(photo).State = EntityState.Modified;
            await _photoContext.SaveChangesAsync();
            return NoContent();
        }

        // DELETE api/<PhotoController>/5
        [HttpDelete("{id}")]
        public async Task<IActionResult> Delete(Guid id)
        {
            var photo = await _photoContext.Photos.FindAsync(id);
            if (photo == null)
                return NotFound();

            _photoContext.Photos.Remove(photo);
            await _photoContext.SaveChangesAsync();
            return NoContent();
        }
    }
}