using GrossesMitainesAPI.Data;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;

namespace GrossesMitainesAPI.Controllers {
    [EnableCors("_myAllowSpecificOrigins"), ApiController, Route("api/[controller]"), Authorize(AuthenticationSchemes = "Identity.Application")]

    public class ImageController : ControllerBase {


        private readonly InventoryContext _context;
        private readonly IWebHostEnvironment _hostEnvironment;
        private readonly ILogger<ProductController> _logger;

        public ImageController(ILogger<ProductController> logger, InventoryContext context, IWebHostEnvironment hostEnvironment) {
            _context = context;
            _hostEnvironment = hostEnvironment;
            _logger = logger;
        }


        [EnableCors("_myAllowSpecificOrigins"), HttpGet(Name = "Image"), AllowAnonymous]
        public IActionResult Get(int id, bool? thumbnail = false) {

            string path;
            string filename;
            string filetype;

            try {
                var prod = _context.Products.Where(x => x.Id == id).First();
                filename = prod.ImageName ?? throw new Exception("Unable to find product image name. Sending default.jpg instead...");
            }
            catch (Exception e) {
                _logger.LogError(8, e.Message);
                filename = "default.jpg";
            }


            path = thumbnail == true ? Path.Combine(_hostEnvironment.ContentRootPath, "Images", Path.GetFileNameWithoutExtension(filename) + "_thumbnail" + Path.GetExtension(filename))
                : Path.Combine(_hostEnvironment.ContentRootPath, "Images", filename);

            if (!System.IO.File.Exists(path)) {
                _logger.LogError(8, "Unable to find image. Sending default image instead...");
                path = Path.Combine(_hostEnvironment.ContentRootPath, "Images", "default.jpg");
            }


            switch (Path.GetExtension(path)) {
                case ".jpg":
                case ".jpeg":
                    filetype = "image/jpeg";
                    break;
                case ".png":
                    filetype = "image/png";
                    break;
                default:
                    filetype = "image/jpeg";
                    break;
            }


            byte[] imageData = System.IO.File.ReadAllBytes(path);
            return File(imageData, filetype);
        }
    }
}