using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using Microsoft.AspNet.Identity;
using Weee.DAL;
using Weee.Filter;
using Weee.Models;
using System.Data.Entity;
using CScommon;
using Qcarbon.Interfaces.adminCheck;
using NLog;
using System.Web.Http.Controllers;
using Qcarbon.Database.adminCheck;
using Qcarbon.ViewModels.admin;

namespace Weee.Controllers.Api
{
    [Authorize(Roles = ProgramConstants.normalcompany)]
    public class SupplierController : ApiController
    {
        private readonly WeeeDataContext db;
        protected IadminCheckService _adminCheckService;
        protected IcompanyAdminCheckService _companyAdminCheckService;
        protected Logger log;
        public SupplierController(WeeeDataContext d)
        {
            db = d;
        }
        protected override void Initialize(HttpControllerContext controllerContext)
        {
            base.Initialize(controllerContext);
            var userid = User.Identity.GetUserId();
            _adminCheckService = new adminCheckService(db, userid);
            _companyAdminCheckService = new companyAdminCheckService(db, userid);
            log = NLog.LogManager.GetCurrentClassLogger();
        }

        [Route("api/Supplier/GetByMyCompany")]
        [Route("api/Supplier/Get")]
        [HttpGet]
        public IEnumerable<object> GetByMyCompany()
        {
            var currentId = User.Identity.GetUserId();
            var qry = db.Users.Where(x => x.Id == currentId && x.IsCompanyAdmin == true);
            if (!qry.Any())
                return new List<Supplier>();
            var currentCompanyId = qry.Select(x => x.CompanyID).Single();
            var ret = db.Suppliers.Where(x => x.CompanyID == currentCompanyId 
                //&& x.UserName != null && x.UserName.Length>0 
                ).ToList();
             return ret;
        }

        [Route("api/Supplier/GetByMyCompany2")]
        [HttpGet]
        public IEnumerable<object> GetByMyCompany2()
        {
            var currentId = User.Identity.GetUserId();
            var qry = db.Users.Where(x => x.Id == currentId && x.IsCompanyAdmin == true);
            if (!qry.Any())
                return new List<Supplier>();
            var currentCompanyId = qry.Select(x => x.CompanyID).Single();
            var ret = (from a in db.Suppliers
                        join b in db.Users on a.UserName equals b.UserName
                        where a.CompanyID == currentCompanyId
                        select new
                        {
                            ID = a.ID,
                            Name = a.Name,
                            Address = a.Address,
                            VendorCode = a.VendorCode,
                            Phone = a.Phone,
                            ContactName = a.ContactName,
                            ContactPhone = a.ContactPhone,
                            ContactEmail = a.ContactEmail,
                            Description = a.Description,
                            CompanyID = a.CompanyID,
                            UserName = a.UserName,
                            SupplierCompanyID = b.CompanyID
                        }).ToList();
            //var ret = db.Suppliers.Where(x => x.CompanyID == currentCompanyId
            //    && x.UserName != null && x.UserName.Length > 0
            //    ).ToList();
            return ret;
        }

        [Route("api/Supplier/Save/{id?}")]
        [HttpPost]
        public int Save(Supplier toBeSave)
        {
            var currentId = User.Identity.GetUserId();
            if (!_adminCheckService.adminCheckPass())
            {
                AdminAccess aa = _adminCheckService.getAdminAccess();
                int supplierQuantity =
                    _adminCheckService.getSupplierQuantity();
                if (supplierQuantity >= aa.supplierLimit
                    && aa.supplierLimit != -1)
                    throw new Exception(
                        $"供應商帳號數({supplierQuantity})已達或超過全站限制" +
                        $"({aa.supplierLimit})，請系統管理員更新金鑰限制重新匯入");
                companyAdminAccessVM uaaVM = _companyAdminCheckService
                    .getCompanyAdminAccessVM(
                        _companyAdminCheckService.userId2companyID(currentId));
                int supplierQuantityByUserId = 
                    _companyAdminCheckService.getSupplierQuantityByUserId(currentId);
                if (supplierQuantityByUserId>=uaaVM.supplierLimit
                    && uaaVM.supplierLimit!=-1)
                    throw new Exception(
                        $"供應商帳號數({supplierQuantityByUserId})已達或超過公司限制" +
                        $"({uaaVM.supplierLimit})，請公司管理員更新金鑰限制重新匯入");
            }
            var currentCompanyId = db.Users.Where(x => x.Id == currentId).Select(x => x.CompanyID).Single();

            toBeSave.CompanyID = currentCompanyId.Value;

            var entry = db.Entry(toBeSave);

            if (toBeSave.ID == 0)
                entry.State = EntityState.Added;
            else
                entry.State = EntityState.Modified;

            db.SaveChanges();

            return toBeSave.ID;
        }
        /// <summary>
        /// 檢查 UserName 是否存在且啟用。檢查Name是否同帳戶的supplier沒有重複(不存在)
        /// </summary>
        /// <param name="toBeSave"></param>
        /// <returns></returns>
        [Route("api/Supplier/Check/{id?}")]
        [HttpPost]
        public object Check(Supplier toBeSave)
        {
            string err = "";
            object ret;
            var currentId = User.Identity.GetUserId();
            var currentCompanyId = db.Users.Where(x => x.Id == currentId).Select(x => x.CompanyID).Single();

            var qry = db.Users.Where(x => x.UserName == toBeSave.UserName).FirstOrDefault();
            User usr = null;
            if (qry == null)
                err = $"登入帳號 {toBeSave.UserName} 不存在！";
            else
            {
                usr = qry;
                var qry2 = db.Companies.Where(x => x.ID == qry.CompanyID && x.Status == CompanyStatus.Active).FirstOrDefault();
                if (qry2 == null)
                    err = $"登入帳號 {toBeSave.UserName} 未啟用！";
                else
                {
                    var b = qry2.GetType().BaseType;
                    if (qry2.GetType().BaseType.Equals(typeof(Weee.Models.CertificationCompany)))
                        err = $"登入帳號 {toBeSave.UserName} 為驗證公司，不得使用！";
                    else {
                        var qry3 = db.Suppliers.Where(x => x.CompanyID == currentCompanyId && x.Name == toBeSave.Name.Trim()).ToList();
                        if (qry3.Count > 0)
                            err = $"供應商名稱 {toBeSave.Name} 已使用，不得重複！";
                        else
                        {
                            var qry4 = db.Suppliers.Where(x => x.CompanyID == currentCompanyId && x.UserName == toBeSave.UserName.Trim()).ToList();
                            if (qry4.Count > 0)
                                err = $"供應商帳號 {toBeSave.UserName} 已使用，不得重複！";
                        }
                    }
                }
            }
            ret = new
            {
                err = err,
                UserName = usr==null ? null : usr.UserName,
                Name = usr == null ? null : usr.Name,
                Email = usr == null ? null : usr.Email,
                PhoneNumber = usr == null ? null : usr.PhoneNumber,
                MobileNumber = usr == null ? null : usr.MobileNumber
            };
            return ret;// err;
        }

        [Route("api/Supplier/BatchCreate")]
        [HttpPost]
        public object BatchCreate(List<Supplier> toBeSave)
        {
            var currentId = User.Identity.GetUserId();
            var userName = User.Identity.GetUserName();
            var currentCompanyId = db.Users.Where(x => x.Id == currentId).Select(x => x.CompanyID).Single();
            foreach (var item in toBeSave)
            {
                item.CompanyID = currentCompanyId.Value;
                item.UserName = userName;
                var entry = db.Entry(item);
                if (item.ID == 0) entry.State = EntityState.Added;
            }

            db.SaveChanges();

            return toBeSave;
        }

        [Route("api/Supplier/{ID}")]
        [HttpDelete]
        public HttpStatusCode Delete(int ID=0)
        {
            var currentId = User.Identity.GetUserId();
            var currentCompanyId = db.Users.Where(x => x.Id == currentId).Select(x => x.CompanyID).Single();
            var supplier = db.Suppliers.Where(x => x.CompanyID == currentCompanyId && x.ID == ID).Single();

            db.Suppliers.Remove(supplier);
            db.SaveChanges();
            return HttpStatusCode.OK;
        }

    }
}