using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using HeuristicLab.Services.Optimization.Web.Models;
using System.IO;
using System.Text;
using System.Xml;
using HeuristicLab.Services.Optimization.ControllerService;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.Web.Security;
using HeuristicLab.Services.Optimization.ControllerService.Model;
using HeuristicLab.Services.Optimization.Web.Helpers;

namespace HeuristicLab.Services.Optimization.Web.Controllers
{
    [Authorize(Roles = "Web User")]
    public class AdminController : Controller
    {
      private ControllerServiceHelper ControllerService {
          get {
            var helper = new ControllerServiceHelper(Session["pw"] as string);
            if (!helper.Valid) {
              Response.Redirect("/Account/Logon");
            }
            return helper;
          }
        }
        //
        // GET: /Admin/
        [HttpGet]
        public ActionResult Index()
        {
          var names = ControllerService.withControllerService<IEnumerable<ScenarioModel>>((service) => {            
            User u = new User() { Username = Membership.GetUser().UserName, Password = Session["pw"] as string };
            var scenModel = new List<ScenarioModel>();
            var scenarios = service.GetOptimizationScenarioNames();
            foreach (var scenario in scenarios) {
              scenModel.Add(new ScenarioModel() { Exists = service.ExistsVisualExtension(scenario), Scenario = scenario });              
            }
            return scenModel;
          });
          return View(names);
        }

        [HttpPost]
        public ActionResult AddScenario(UploadScenario newSecnario) {
          StreamReader reader = new StreamReader(newSecnario.ScenarioMapper.InputStream);
          string scenarioMapper = reader.ReadToEnd();

          XmlDocument doc = new XmlDocument();
          doc.Load(newSecnario.ScenarioXml.InputStream);
          string scenarioXml;
          using (var stringWriter = new StringWriter())
          using (var xmlTextWriter = XmlWriter.Create(stringWriter)) {
            doc.WriteTo(xmlTextWriter);
            xmlTextWriter.Flush();
            scenarioXml = stringWriter.GetStringBuilder().ToString();
          }

          var ok = ControllerService.withControllerService<bool>((service) => {
            OptimizationModel model = new OptimizationModel();
            User u = new User() { Username = Membership.GetUser().UserName, Password = Session["pw"] as string };
            return service.AddHiveScenario(u, scenarioXml, scenarioMapper);                        
          });

          return RedirectToAction("Index");
        }

        [HttpPost]
        public ActionResult AddVisualExtension(UploadVisualExtension extension) {          
          StreamReader reader = new StreamReader(extension.ScenarioJs.InputStream);
          string scenarioJs = reader.ReadToEnd();

          var ok = ControllerService.withControllerService<bool>((service) => {
            OptimizationModel model = new OptimizationModel();
            User u = new User() { Username = Membership.GetUser().UserName, Password = Session["pw"] as string };
            return service.AddVisualExtension(extension.ScenarioId, scenarioJs);
          });
          return RedirectToAction("Index");
        }

        [HttpPost]
        public ActionResult DeleteVisualExtension(UploadVisualExtension extension) {
          var ok = ControllerService.withControllerService<bool>((service) => {
            OptimizationModel model = new OptimizationModel();
            User u = new User() { Username = Membership.GetUser().UserName, Password = Session["pw"] as string };
            return service.DeleteVisualExtension(extension.ScenarioId);
          });
          return RedirectToAction("Index");
        }

        public ActionResult DeleteScenario(string id) {
          ControllerService.withControllerService<bool>((service) => {            
            User u = new User() { Username = Membership.GetUser().UserName, Password = Session["pw"] as string };
            return service.DeleteHiveScenario(u, id);
          });
          return RedirectToAction("Index");
        }

    }
}