using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using PagedList;
using Newtonsoft.Json;
using System.Collections;
using static TreeView;
using System.IO;
using System.Web;
using System.Threading.Tasks;
using System.Diagnostics;
using DocumentFormat.OpenXml.Wordprocessing;
using DocumentFormat.OpenXml.Office2010.Excel;

[ezAuthorize]
public class stockController : BaseApiController
{
    // GET api/<controller>
    public IEnumerable<Model.stock> Get()
    {
        var list = _db.stocks.ToList();
        if (list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return list;
    }

    // GET api/<controller>/5
    public Model.stock Get(int id)
    {
        var item = _db.stocks.Where(q => q.num == id).FirstOrDefault();
        if (item == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return item;
    }

    // GET api/<controller>/5
    public IEnumerable<Model.stock> GetPage(int page)
    {
        var stock = _db.stocks.Where(q => q.num < 10).ToList();
        return stock;
    }

    // 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)
    {
        var prod = _db.stocks.AsEnumerable().Where(q => q.num == id).FirstOrDefault(); //刪除該筆資料
        if (prod != null)
        {
            var prod2 = prod.stock_files;
            if (prod2.Count > 0)
            {
                publicFun publicFun = new publicFun();
                foreach (var item in prod2)
                {
                    if (!string.IsNullOrEmpty(item.pic1))
                    {
                        publicFun.DeleteFile(Model.stock.Dir + "/" + item.pic1);
                    }
                }
              

            }
            

            _db.stocks.Remove(prod);
            _db.SaveChanges(); //執行
        }

    }

    [HttpDelete]
    [Route("api/stock/Delete/{nums}")]
    public void Delete(string nums)
    {
        if (!string.IsNullOrEmpty(nums))
        {
            var getDelItem = nums.TrimEnd(',').Split(',').Select(s => int.Parse(s));
            var prod = _db.stocks.AsEnumerable().Where(q => getDelItem.Contains(q.num)).ToList();
            if (prod.Count() > 0)
            {
                var prod2 = _db.stock_files.AsEnumerable().Where(q => q.stock_num.HasValue && getDelItem.Contains(q.stock_num.Value)).ToList();
                if (prod2.Count() > 0)
                {
                    publicFun publicFun = new publicFun();
                    foreach (var item in prod2)
                    {
                        if (!string.IsNullOrEmpty(item.pic1))
                        {
                            publicFun.DeleteFile(Model.stock.Dir + "/" + item.pic1);
                        }
                    }
                }


                _db.stocks.RemoveRange(prod);
                _db.SaveChanges();
            }
        }

    }
    [HttpPost]
    [Route("api/stock/GetList")]
    public IHttpActionResult GetList([FromBody] Model.ViewModel.stock q, int page, int pageSize = 10,
     string sortBy = "", bool sortDesc = false)
    {
        var qry = _db.stocks.AsEnumerable();
       
        if (q.category.HasValue)
            qry = qry.Where(o => o.category == q.category.Value);
        if (q.kind.HasValue)
        {
            var _subKinds = new TreeView().subKinds(_db.stock_kind.Select(o => new TreeItem()
            {
                num = o.num,
                root = o.root,
            }).ToList(), q.kind.Value);
            qry = qry.Where(o => o.kind == q.kind.Value || _subKinds.Any(s => s == o.kind));
        }
        if (q.reason.HasValue)
        {
            var _subKinds = new TreeView().subKinds(_db.stock_reason.Select(o => new TreeItem()
            {
                num = o.num,
                root = o.root,
            }).ToList(), q.reason.Value);
            qry = qry.Where(o => o.reason == q.reason.Value || _subKinds.Any(s => s == o.reason));
        }
        if (q.activity_num.HasValue)
            qry = qry.Where(o => o.activity_num == q.activity_num.Value);
        if (q.actItem_num.HasValue)
            qry = qry.Where(o => o.actItem_num == q.actItem_num.Value);
        if (q.uptime1.HasValue)
            qry = qry.Where(o => o.uptime >= q.uptime1.Value);
        if (q.uptime2.HasValue)
            qry = qry.Where(o => o.uptime < Convert.ToDateTime(q.uptime2.Value).AddDays(1));
        if (!string.IsNullOrEmpty(q.activity_num_txt))
            qry = qry.Where(o => o.activity_num.HasValue && o.activity.subject.Contains(q.activity_num_txt.Trim()));
        if (!string.IsNullOrEmpty(q.mem_num_txt))
            qry = qry.Where(o => o.mem_num.HasValue && o.member.u_name.Contains(q.mem_num_txt.Trim()));
        if (!string.IsNullOrEmpty(q.debtor))
            qry = qry.Where(o => (o.debtor??"").Contains(q.debtor.Trim()));


        if (sortBy.Equals("category_Txt"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.category);
            else
                qry = qry.OrderBy(o => o.category);
        }
        else if (sortBy.Equals("kindsTxt"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.kind);
            else
                qry = qry.OrderBy(o => o.kind);
        }
        else if (sortBy.Equals("reasonsTxt"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.reason);
            else
                qry = qry.OrderBy(o => o.reason);
        }
        else if (sortBy.Equals("activity_Txt"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.activity_num);
            else
                qry = qry.OrderBy(o => o.activity_num);
        }
        else if (sortBy.Equals("actItem_Txt"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.actItem_num);
            else
                qry = qry.OrderBy(o => o.actItem_num);
        }
        else if (sortBy.Equals("uptime"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.uptime);
            else
                qry = qry.OrderBy(o => o.uptime);
        }
        else
            qry = qry.OrderByDescending(o => o.num);

        var tdesc = publicFun.enum_desc<Model.stock.type>();

        var ret = new
        {
            list = qry.ToPagedList(page, pageSize).Select(x => new
            {
                num = x.num,
                category = x.category,
                category_Txt = tdesc[x.category ?? 1],
                kind = x.kind,
                kindTxt = x.kind.HasValue? x.stock_kind.kind :"",
                kindsTxt = x.kind.HasValue ? new TreeView().kindText(_db.stock_kind.Select(o => new TreeItem()
                {
                    kind = o.kind,
                    num = o.num,
                    root = o.root,
                }).ToList(), x.kind) : "",
                reason = x.reason,
                reasonsTxt = x.reason.HasValue ? new TreeView().kindText(_db.stock_reason.Select(o => new TreeItem()
                {
                    kind = o.kind,
                    num = o.num,
                    root = o.root,
                }).ToList(), x.reason) : "",
                actItem_num = x.actItem_num,
                actItem_Txt = x.actItem_num.HasValue ? x.actItem.subject : "",
                activity_num = x.activity_num,
                activity_Txt = x.activity_num.HasValue? x.activity.subject :"",          
                uptime = x.uptime,
                qty = x.qty,
                price = x.price,

            }),
            count = qry.Count()

        };


        if (ret.list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return Ok(ret);
    }

    [HttpPost]
    [Route("api/stock/GetKindList")]
    public IHttpActionResult GetKindList([FromBody] Model.ViewModel.stock_kind q, int page, int pageSize = 10,
     string sortBy = "", bool sortDesc = false)
    {
        var qry = _db.stock_kind.AsEnumerable();

        if (!string.IsNullOrEmpty(q.kind))
            qry = qry.Where(o => o.kind.Contains(q.kind));


        //if (sortBy.Equals("kind"))
        //{
        //    if (sortDesc)
        //        qry = qry.OrderByDescending(o => o.kind);
        //    else
        //        qry = qry.OrderBy(o => o.kind);
        //}

        //else
        //    qry = qry.OrderBy(o => o.kind);

        var qry2 = new TreeView().get_data2(qry.Select(o => new TreeItem()
        {
            kind = o.kind,
            num = o.num,
            root = o.root,
            range = o.range,
        }).OrderBy(x => x.root).ThenBy(x => x.kind).ToList(), 0, 0);




        var ret = new
        {
            list = qry2.ToPagedList(page, pageSize).Select(x => new
            {
                num = x.num,
                kind = new TreeView().RptDash(x.Level) + x.kind,

            }),
            count = qry.Count()
        };


        if (ret.list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return Ok(ret);
    }

    [HttpPost]
    [Route("api/stock/GetReasonList")]
    public IHttpActionResult GetReasonList([FromBody] Model.ViewModel.stock_reason q, int page, int pageSize = 10,
     string sortBy = "", bool sortDesc = false)
    {
        var qry = _db.stock_reason.AsEnumerable();

        if (!string.IsNullOrEmpty(q.kind))
            qry = qry.Where(o => o.kind.Contains(q.kind));

        if (q.category.HasValue && Convert.ToInt32(q.category)>0)
            qry = qry.Where(o => o.category == q.category);

        var qry2 = new TreeView().get_data2(qry.Select(o => new TreeItem()
        {
            kind = o.kind,
            num = o.num,
            root = o.root,
            range = o.range,
        }).OrderBy(x => x.root).ThenBy(x => x.kind).ToList(), 0, 0);


        var ret = new
        {
            list = qry2.ToPagedList(page, pageSize).Select(x => new
            {
                num = x.num,
                kind = new TreeView().RptDash(x.Level) + x.kind,
            }),
            count = qry.Count()
        };


        if (ret.list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return Ok(ret);
    }



    [HttpPost]
    [Route("api/stock/GetStockFiles")]
    public IHttpActionResult GetItemFiles([FromBody] Model.stock_files q, int page, int pageSize = 10,
    string sortBy = "", bool sortDesc = false)
    {
        if (q.stock_num.HasValue && q.stock_num.Value>0)
        {
            //檢查
            var qry = _db.stock_files.AsEnumerable();
            qry = qry.Where(o => o.stock_num == q.stock_num.Value);
            qry.OrderByDescending(x => x.num);

            int i = 1;
            //已有值
            var ret = new
            {
                list = qry.ToPagedList(page, pageSize).Select(x => new
                {
                    id = i++,
                    num = x.num,
                    stock_num = x.stock_num,
                    pic1 = x.pic1,
                    pic1_name = x.pic1_name,
                }),
                count = qry.Count(),
            };

            if (ret.list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
            return Ok(ret);

        }
        else
        {
            return NotFound();
        }


    }

    [HttpPost]
    [Route("api/stock/uploadFiles")]
    public async Task<IHttpActionResult> uploadFiles()
    {
        if (!Request.Content.IsMimeMultipartContent())
        {
            return BadRequest("無效的請求。");
        }

  
        string uploadFolder = Path.Combine(HttpContext.Current.Server.MapPath("~/upload"), "stock");
        Directory.CreateDirectory(uploadFolder);

        var provider = new MultipartFormDataStreamProvider(HttpContext.Current.Server.MapPath(Model.stock.Dir));
        await Request.Content.ReadAsMultipartAsync(provider);

        if (provider.FileData.Count == 0)
        {
            return BadRequest("缺少檔案。");
        }
        else
        {

            string tempFilePath = provider.FileData[0].LocalFileName;
            string fileName = provider.FileData[0].Headers.ContentDisposition.FileName.Trim('\"');
            //string Dir = provider.FormData[0];

            //re-name
            string[] n = Path.GetFileName(fileName).Split('.');
            fileName = DateTime.Now.ToString("yyyyMMddHHmmss") + "." + n[n.Length - 1];

            bool isAllowed = false;
            string[] type = {
                             "jpg",
                             "jpeg",
                             "png",                         
                             "pdf"
             };

            for (int i = 0; i <= type.Length - 1; i++)
            {
                if (n[n.Length - 1].ToLower() == type[i])
                {
                    isAllowed= true;
                }
            }
            if (isAllowed)
            {
                //計算檔案大小
                long result = -1;
                System.Net.WebRequest req = System.Net.WebRequest.Create(tempFilePath);
                req.Method = "HEAD";
                using (System.Net.WebResponse resp = req.GetResponse())
                {
                    if (long.TryParse(resp.Headers.Get("Content-Length"), out long ContentLength))
                    {
                        result = ContentLength;//位元組
                    }
                }

                //result / 1024 = kB

                if(result/1000/1000<= 2)
                {

                    string filePath = Path.Combine(uploadFolder, fileName);
                    File.Move(tempFilePath, filePath);

                    return Ok(fileName);
                }
                else
                {
                    return BadRequest("檔案限制 2 MB 以內");
                }

            }
            else
            {
                return BadRequest("格式不符。");
            }
        }      

    }

    [HttpPost]
    [Route("api/stock/SaveFileData")]
    public IHttpActionResult SaveFileData([FromBody] Model.stock_files item)
    {
        item.reg_time = DateTime.Now;
        _db.stock_files.Add(item);
        _db.SaveChanges();
        return Ok(item.num);

    }


    [HttpDelete]
    [Route("api/stock/DeleteFilesItem/{id}")]//刪除相關檔案
    public void DeleteFilesItem(int id)
    {
        var prod = _db.stock_files.AsEnumerable().Where(q => q.num == id).FirstOrDefault(); //刪除該筆資料
        if (prod != null)
        {
            if (!string.IsNullOrEmpty(prod.pic1))
            {
                publicFun publicFun = new publicFun();
                publicFun.DeleteFile(Model.stock.Dir + "/" + prod.pic1);
            }

            _db.stock_files.Remove(prod);
            _db.SaveChanges(); //執行
        }
    }


}