using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Strata.Stratasphere.Biz.Mappings.Exports;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;

namespace Strata.Stratasphere.Api.Controllers
{
    [ApiController]
    [ApiVersion("1.0")]
    [Route("api/v{api-version:apiVersion}/[controller]")]
    public class ExportController : ControllerBase
    {
        private readonly IExportJobService _exportJobService;

        public ExportController(IExportJobService exportJobService)
        {
            _exportJobService = exportJobService;
        }

        [HttpGet("[action]")]
        [ProducesResponseType(StatusCodes.Status202Accepted)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        [ProducesDefaultResponseType]
        public async Task<IActionResult> Download([FromQuery] string filename, CancellationToken cancellationToken)
        {
            var memoryStream = await _exportJobService.DownloadFile(filename, cancellationToken);

            return new FileContentResult(memoryStream.ToArray(),
                "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
            {
                FileDownloadName = filename
            };
        }

        [HttpGet("[action]")]
        public async Task<IEnumerable<string>> GetExports(CancellationToken cancellationToken)
        {
            return await _exportJobService.GetExports(cancellationToken);
        }
    }
}