using Microsoft.AspNetCore.Mvc;
using RhSolutions.SkuParser.Models;
using RhSolutions.SkuParser.Abstractions;

namespace RhSolutions.SkuParser.Controllers;

[ApiController]
[Route("/api/[controller]")]
public class CommonParseController : ControllerBase
{
	private IServiceProvider _provider;
	private Dictionary<Product, double> _result;
	public CommonParseController(IServiceProvider provider)
	{
		_provider = provider;
		_result = new();
	}

	[HttpPost]
	public IActionResult PostFiles()
	{
		IFormFileCollection files = Request.Form.Files;
		try
		{
			foreach (var file in files)
			{
				ISkuParser parser = _provider.GetRequiredKeyedService<ISkuParser>(file.ContentType);
				var dict = parser.ParseProducts(file);
				foreach (var kvp in dict)
				{
					if (_result.ContainsKey(kvp.Key))
					{
						_result[kvp.Key] += kvp.Value;
					}
					else
					{
						_result.Add(kvp.Key, kvp.Value);
					}
				}
			}
		}
		catch (Exception ex)
		{
			return BadRequest(error: $"{ex.Message}\n\n{ex.Source}\n{ex.StackTrace}");
		}
		return new JsonResult(_result.Select(x => new { x.Key.Sku, x.Value }));
	}
}