using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web;
using System.Web.Http;
[ezAuthorize]

public class fileSystemController : ApiController
{
    // GET api/<controller>
    public IEnumerable<string> Get()
    {
        return new string[] { "value1", "value2" };
    }

    // GET api/<controller>/5
    public string Get(int id)
    {
        return "value";
    }

    // POST api/<controller>
    public void Post([FromBody] string value)
    {
        
    }

    // PUT api/<controller>/5
    public void Put(int id, [FromBody] string value)
    {
    }

    // DELETE api/<controller>/5
    public void Delete(int id)
    {
    }

    [HttpPost]
    [Route("api/fileSys/upload")]
    public async Task<IHttpActionResult> uploadFile()
    {
        if (!Request.Content.IsMimeMultipartContent())
        {
            throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
        }

        try
        {
            var provider = new MultipartMemoryStreamProvider();
            await Request.Content.ReadAsMultipartAsync(provider);
            //var path = HttpContext.Current.Server.MapPath("~/upload");
            //var path = System.Web.HttpContext.Current.Server.MapPath(Model.project.Dir);
            string dir = "upload/project";
            //多執行緒之下抓不到HttpContext.Current
            var path = HttpContext.Current != null? HttpContext.Current.Server.MapPath(Model.project.Dir) : System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, dir);
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            string pic1 = "";
            int ii = 0;
            foreach (var file in provider.Contents)
            {
                var fileName = file.Headers.ContentDisposition.FileName.Trim('\"'); //從header去取得filename的名字
                string[] n = Path.GetFileName(fileName).Split('.');
                fileName= DateTime.Now.ToString("yyyyMMddHHmmss") + ii.ToString() + "." + n[n.Length - 1];
                pic1 += (!string.IsNullOrEmpty(pic1) ? "," : "") + fileName;

                var fullPath = File.Create($"{path}/{fileName}");
                var buffer = await file.ReadAsByteArrayAsync();
                await fullPath.WriteAsync(buffer, 0, buffer.Length);
                ii++;

            }

            return Ok(pic1);
        }
        catch(Exception e)
        {
            return NotFound();
        }

        
    }


}