using System;
using System.Web.Mvc;
using Neo.LegitimateLicences.Data.Models;
using System.Linq;
using Neo.LegitimateLicences.Common;
using Neo.Afx.Security;
using System.Configuration;
using Neo.Afx.Services.Workflows;
using Neo.Afx.Services.Documents;
using System.Collections.Generic;

namespace Neo.LegitimateLicences.VerificationConsole
{
    public partial class VerificationConsoleController : Neo.LegitimateLicences.Common.ControllerBase
    {
        private const long _documentStoreLocationID = 3; //todo - make configurable

        #region Console

        public ActionResult Console(long entityID, long itemID, long workflowInstanceID, long workflowInstanceTaskID)
        {
            return VerificationConsole(entityID, itemID, workflowInstanceID, workflowInstanceTaskID);
        }

        public ActionResult VerificationConsole(long entityID, long itemID, long workflowInstanceID, long workflowInstanceTaskID)
        {
            var workflowsDatabase = new WorkflowsDatabase();
            var documentDatabase = new DocumentsDatabase();
            var database = new LegitimateDatabase();

            #region ensure that task is assigned to current user
            var at = WorkflowHelper.GetActiveTask(entityID, itemID);

            if (at == null)
            {
                throw new Exception("No active task found for this application");
            }

            if (at.WorkflowTemplateStepTypeID != 5 /*document verification*/)
            {
                throw new Exception("The task is not in a verification task");
            }

            if (!SecurityHelper.UserHasAccessToSecurable(((UserProfile)Profile).Securables.ToList(), Neo.LegitimateLicences.Common.SecurableEnum.AfxWorkflowDocumentVerification))
            {
                throw new Exception("The user does not have access to workflow document verification.");
            }

            if (at.AssignedToID != Profile.UserID)
            {
                var user = ConfigurationManager.AppSettings["SystemUsername"].ToString();
                var reassign = workflowsDatabase.ReAssignWorkflowInstanceTask(at.WorkflowInstanceTaskID, Profile.UserID, "", user);

                if (String.IsNullOrEmpty(reassign))
                {
                    workflowInstanceTaskID = WorkflowHelper.GetActiveTask(entityID, itemID).WorkflowInstanceTaskID;
                }
                else
                {
                    throw new Exception("Error re-assiging verification task: " + reassign);
                }
            }
            else if (at.AssignedToID == Profile.UserID)
            {
                workflowInstanceTaskID = at.WorkflowInstanceTaskID;
            }
            else
            {
                throw new Exception("The task is currently assigned to " + at.AssignedToName + ". Please refresh the verification list");
            }
            #endregion

            var documents = documentDatabase.GetDocumentsAwaitingVerification(entityID, itemID);
            var appDocuments = database.GetAppDocumentsAwaitingVerification(entityID, itemID);

            if (documents.Count() == 0 && appDocuments.Count() == 0)
            {
                throw new Exception("The request does not have any documents to verify.");
            }

            List<Pr_AppDocumentsAwaitingVerificationGet_Result> documentsAwaitingVerification = new List<Pr_AppDocumentsAwaitingVerificationGet_Result>();
            foreach (var doc in documents)
            {
                Pr_AppDocumentsAwaitingVerificationGet_Result d = new Pr_AppDocumentsAwaitingVerificationGet_Result
                {
                    EntityID = entityID,
                    ItemID = itemID,
                    DocumentID = doc.DocumentID,
                    DocumentTypeID = doc.DocumentTypeID,
                    Description = doc.Description,
                    DocumentVerificationStatusID = doc.DocumentVerificationStatusID,
                    DocumentDescription = doc.DocumentDescription
                };
                documentsAwaitingVerification.Add(d);
            }

            foreach (var doc in appDocuments)
            {
                Pr_AppDocumentsAwaitingVerificationGet_Result d = new Pr_AppDocumentsAwaitingVerificationGet_Result
                {
                    EntityID = entityID,
                    ItemID = itemID,
                    DocumentID = doc.DocumentID,
                    DocumentTypeID = doc.DocumentTypeID,
                    Description = doc.Description,
                    DocumentVerificationStatusID = doc.DocumentVerificationStatusID,
                    DocumentDescription = doc.DocumentDescription,
                    ApplicationLicenceID = doc.ApplicationLicenceID,
                    VIN = doc.VIN
                };
                documentsAwaitingVerification.Add(d);
            }

            var model = new VerificationConsoleModel
            {
                WorkflowInstanceTaskID = workflowInstanceTaskID,
                Documents = documentsAwaitingVerification,
                ItemID = itemID,
                EntityID = entityID,
                AppOrLir = "APP"
            };

            return View("Console", model);
        }


        #endregion
    }
}