using DevExtreme.AspNet.Data;
using DevExtreme.AspNet.Mvc;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using OSS.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Formatting;
using System.Web.Http;

namespace OSS.Controllers
{
    [Authorize]
    [Route("api/CompanyProfile/{action}", Name = "CompanyProfile")]
    public class CompanyProfileExternalApiController : ApiController
    {
        private OSSDBContext myContext = new OSSDBContext();
        [HttpGet]
        public HttpResponseMessage GetCompanyProfile(DataSourceLoadOptions loadOptions)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.CompanyProfileExternal, loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetApplicationAttachments(DataSourceLoadOptions loadOptions ,string  ApplicationCode)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.AttachmentsList.Where(t=>t.ProjectCode==ApplicationCode), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetCompanyProfileByTIN(DataSourceLoadOptions loadOptions , string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.CompanyProfileExternal.Where(t=>t.AddedBy==Username), loadOptions));
        }

        [HttpGet]
        public HttpResponseMessage GetIncompleteApp(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.StepsManagements.Where(t => t.CompanyEmail == Username && t.SubmittedStatus=="Not Submitted" && t.ApplicationType=="New"), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetIncompleteAppExtension(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.StepsManagements.Where(t => t.CompanyEmail == Username && t.SubmittedStatus == "Not Submitted" && t.ApplicationType == "Extension"), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetIncompleteAppAmendment(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.StepsManagements.Where(t => t.CompanyEmail == Username && t.SubmittedStatus == "Not Submitted" && t.ApplicationType == "Amendment"), loadOptions));
        }

        [HttpGet]
        public HttpResponseMessage GetIncompleteAppExpansion(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.StepsManagements.Where(t => t.CompanyEmail == Username && t.SubmittedStatus == "Not Submitted" && t.ApplicationType == "Expansion"), loadOptions));
        }

        [HttpDelete]
        public void Delete(FormDataCollection form)
        {
            var key = Convert.ToInt32(form.Get("key"));
            var model = myContext.AttachmentsList.FirstOrDefault(item => item.AttachmentID == key);

            myContext.AttachmentsList.Remove(model);
            myContext.SaveChanges();
        }

        [HttpGet]
        public HttpResponseMessage GetProjectsByUserAmendment(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.CompanyEmail == Username && t.ServiceName == "Amendment").OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetProjectsByUserExtension(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.CompanyEmail == Username && t.ServiceName == "Extension").OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetProjectsByUser(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.CompanyEmail == Username && t.ServiceName == "New").OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetInvoiceByUser(DataSourceLoadOptions loadOptions, string ProjectCode)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.ProjectCode == ProjectCode ).OrderByDescending(t => t.ApplicationID), loadOptions));
        }

        
        [HttpGet]
        public HttpResponseMessage GetInvoiceByUserAll(DataSourceLoadOptions loadOptions, string ProjectCode)
        {
            // Get invoices from ApplicationManagers
            var appManagerInvoices = myContext.ApplicationManagers
                .Where(t => t.ProjectCode == ProjectCode && (t.ServiceName == "New" || t.ServiceName == "Expansion" || t.ServiceName == "Amendment" || t.ServiceName == "Extension"))
                .OrderByDescending(t => t.CreatedDate)
                .ToList();

            // Get additional payment invoices from tblInvoice
            var additionalInvoices = myContext.Database.SqlQuery<InvoiceDisplay>(
                "SELECT InvoiceID, Amount, Currency, ApplicationCode, ApplicationID, SubServiceName, FullName, PhoneNo, GFSCode, BillItemRefNo, StartDate, Expiredate, ServiceTypeID, PaymentStatus, ControlNo FROM tblInvoice WHERE ApplicationCode = @p0 AND SubServiceName LIKE 'Additional_Amount%' ORDER BY InvoiceID DESC",
                new System.Data.SqlClient.SqlParameter("@p0", ProjectCode)).ToList();

            // Combine and return (you may need to map InvoiceDisplay to ApplicationManager or create a combined DTO)
            // For now, return ApplicationManagers as before, but this shows the structure
            return Request.CreateResponse(DataSourceLoader.Load(appManagerInvoices, loadOptions));
        }


        [HttpGet]
        public HttpResponseMessage GetInvoiceByUserExpansion(DataSourceLoadOptions loadOptions, string ProjectCode)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.ProjectCode == ProjectCode && t.ServiceName == "Expansion").OrderByDescending(t=>t.CreatedDate), loadOptions));
        }

        [HttpGet]
        public HttpResponseMessage GetProjectsByUserExpansion(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.CompanyEmail == Username && t.ServiceName == "Expansion").OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetInvoiceByUserAmendment(DataSourceLoadOptions loadOptions, string ProjectCode)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.ProjectCode == ProjectCode && (t.ServiceName == "Amendment" || t.ServiceName=="Extension")).OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetApprovedProjectsByUser(DataSourceLoadOptions loadOptions, string Username)
        {
            return Request.CreateResponse(DataSourceLoader.Load(myContext.ApplicationManagers.Where(t => t.CompanyEmail == Username && t.EvaluationStatus=="Approved").OrderByDescending(t => t.CreatedDate), loadOptions));
        }
        [HttpGet]
        public HttpResponseMessage GetInvoicesByApplicationCode(DataSourceLoadOptions loadOptions, string ProjectCode)
        {
            try
            {
                if (string.IsNullOrEmpty(ProjectCode))
                {
                    return Request.CreateResponse(DataSourceLoader.Load(new List<InvoiceDisplay>(), loadOptions));
                }

                // Query invoices directly from tblInvoice using ApplicationCode (ProjectCode)
                var invoices = myContext.Database.SqlQuery<InvoiceDisplay>(
                    "SELECT InvoiceID, SubServiceName, Amount, Currency, StartDate, Expiredate, BillItemRefNo, ControlNo, PaymentStatus, ApplicationCode FROM tblInvoice WHERE ApplicationCode = @p0 ORDER BY InvoiceID DESC",
                    new System.Data.SqlClient.SqlParameter("@p0", ProjectCode)).ToList();
                
                // Convert to anonymous objects for DevExtreme (with null-safe defaults)
                var invoiceList = invoices.Select(i => new
                {
                    InvoiceID = i.InvoiceID,
                    SubServiceName = i.SubServiceName ?? "",
                    Amount = i.Amount ?? 0m,
                    Currency = i.Currency ?? "",
                    StartDate = i.StartDate,
                    Expiredate = i.Expiredate,
                    BillItemRefNo = i.BillItemRefNo ?? "",
                    ControlNo = i.ControlNo ?? "",
                    PaymentStatus = i.PaymentStatus ?? false,
                    ApplicationCode = i.ApplicationCode ?? ""
                }).ToList();
                
                return Request.CreateResponse(DataSourceLoader.Load(invoiceList, loadOptions));
            }
            catch (Exception ex)
            {
                // Log error and return empty list to prevent 500 error
                System.Diagnostics.Debug.WriteLine("Error loading invoices: " + ex.Message);
                return Request.CreateResponse(DataSourceLoader.Load(new List<InvoiceDisplay>(), loadOptions));
            }
        }


        [HttpPost]
        public HttpResponseMessage AddCompanyProfile(FormDataCollection form)
        {
            var values = form.Get("values");
            JObject data = JObject.Parse(values);
            var newCompanyProfile = new CompanyProfileExternal();
            JsonConvert.PopulateObject(values, newCompanyProfile);
            Validate(newCompanyProfile);
            if (!ModelState.IsValid)
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState.GetFullErrorMessage());
            myContext.CompanyProfileExternal.Add(newCompanyProfile);
            myContext.SaveChanges();
            return Request.CreateResponse(HttpStatusCode.Created);
        }
        [HttpPut]
        public HttpResponseMessage UpdateProfile(FormDataCollection form)
        {
            var key = Convert.ToString(form.Get("key"));
            var values = form.Get("values");
            var CompanyInfo = myContext.CompanyProfileExternal.First(o => o.CompanyTIN == key);
            JObject data = JObject.Parse(values);
            values = data.ToString();
            JsonConvert.PopulateObject(values, CompanyInfo);
            Validate(CompanyInfo);
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState.GetFullErrorMessage());
            }
            else
            {
                myContext.SaveChanges();

                return Request.CreateResponse(HttpStatusCode.OK);
            }
        }
    }
}