using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using Asm.As.Oib.Client;
using com.itac.mes.imsapi.client.dotnet;
using com.itac.mes.tools;
using com.itac.mes.imsapi.domain.container;
using KeyValue = com.itac.mes.imsapi.domain.container.KeyValue;
using www.siplace.com.OIB._2008._05.SetupCenter.Contracts.Data;
using com.itac.mes.imsapi;

namespace com.itac.mes
{


  class ContainerCheckThread
  {

    private static string attributeName = "SIMM-ManualSetToZero";
    public static int MIN_INTERVAL_SECONDS = 10;

    private TimeSpan interval;
    private Thread thread;
    private IIMSApiDotNet imsapi;
    private SetupCenterNotificationClient setupCenterNotificationClient;
    private string stationNumber;
    private IMSApiSessionContextStruct sessionContext;
    private KeyValue[] materialBinFilters = new KeyValue[] { new KeyValue("MATERIAL_BIN_NUMBER", "*") };
    private AttributeInfo[] attributes = new AttributeInfo[] { new AttributeInfo(attributeName, "1") };
    private string[] materialBinResultKeys = new string[] { "MATERIAL_BIN_NUMBER" };



    public ContainerCheckThread(TimeSpan interval, IIMSApiDotNet imsapi, IMSApiSessionContextStruct sessionContext, SetupCenterNotificationClient setupCenterNotificationClient, String stationNumber)
    {
      // none of those values must be null
      this.interval = interval;
      this.imsapi = imsapi;
      this.setupCenterNotificationClient = setupCenterNotificationClient;
      this.stationNumber = stationNumber;
      this.sessionContext = sessionContext;
      if (interval.TotalSeconds >= MIN_INTERVAL_SECONDS)
      {
        thread = new Thread(CheckContainers);
      }
    }

    public void Start()
    {
      if (thread != null)
      {
        thread.Start();
      }
    }

    public void CheckContainers()
    {
      LogHandler.log(Constants.LOGGER, TraceEventType.Information, "start checking empty containers in MES (having attribute " + attributeName + "==1)");
      while (true)
      {
        try
        {
          string[] resultValues;
          int objectType = 2;
          string attributeValue = "1";
          int maxRows = 100;
          KeyValue[] attributeFilters = new KeyValue[0];
          // getContainers with attribute 
          int returnCode = imsapi.attribGetObjectsForAttributeValues(sessionContext, stationNumber, objectType, attributeName, attributeValue, maxRows, attributeFilters, materialBinResultKeys, out resultValues);
          if (returnCode == 0 || returnCode == 3)
          {
            // for every container:
            // send this info to setupCenter and close them within SC
            // if OK remove the attribute from the container, otherwise set appropriate attribute value
            foreach (String containerId in resultValues)
            {
              consumePackagingUnitInSetupCenter(containerId);
            }
          }
          else if (returnCode == -932 || returnCode > 0)
          {
            LogHandler.log(Constants.LOGGER, TraceEventType.Information, "no empty containers found");
          }
          else if (returnCode < 0)
          {
            LogHandler.log(Constants.LOGGER, TraceEventType.Error, "failed to retrieve empty containers from MES, apiRet Code=" + returnCode);
          }
        }
        catch (Exception exception)
        {
          LogHandler.log(Constants.LOGGER, TraceEventType.Critical, "processing empty containers failed", exception);
        }
        finally
        {
          DateTime nextRun = DateTime.Now + interval;
          LogHandler.log(Constants.LOGGER, TraceEventType.Information, "next run for checking empty containers (having attribute " + attributeName + "==1) in " + interval + " at " + nextRun.ToLongTimeString());
          Thread.Sleep(interval);
        }
      }
    }

    protected void consumePackagingUnitInSetupCenter(string containerId)
    {
      // create an ASM packaging unit; for delete it is sufficient to have an UID only
      PackagingUnit packagingUnit = new PackagingUnit();
      packagingUnit.UID = containerId;
      PackagingUnitConsumedReport packUnitConsumedReport = new PackagingUnitConsumedReport();
      packUnitConsumedReport.PackagingUnits = new PackagingUnit[] { packagingUnit };

      LogHandler.log(Constants.LOGGER, TraceEventType.Information, "raise delete packagingUnit " + containerId + " in SetupCenter");
      try
      {
        setupCenterNotificationClient.RaisePackagingUnitConsumed(packUnitConsumedReport);
        // delete Packaging unite succeeded
        // remove attribute from container
        /* example call: 
          attribRemoveAttributeValue()
          stationNumber= 01010010
          objectType= 2
          objectNumber= 000197630005
          objectDetail= -1
          attributeCode= SIMM - ManualSetToZero
          attributeValueKey= 1
        ------------------------------------------------------------------
        Result_attribRemoveAttributeValue
          .return_value= 0 ''
  */
        LogHandler.log(Constants.LOGGER, TraceEventType.Information, "remove attribute " + attributeName + " from container " + containerId);
        int objectType = 2;
        string objectDetail = "-1";
        string attributeValueKey = "1";
        int retValue = imsapi.attribRemoveAttributeValue(sessionContext, stationNumber, objectType, containerId, objectDetail, attributeName, attributeValueKey);
        if (retValue != 0)
        {
          LogHandler.log(Constants.LOGGER, TraceEventType.Error, "removing  attribute " + attributeName + " from container " + containerId + " failed");
        }
        else
        {
          LogHandler.log(Constants.LOGGER, TraceEventType.Information, "removing  attribute " + attributeName + " from container " + containerId + " succeded");
        }
      }
      catch (Exception e)
      {
        LogHandler.log(Constants.LOGGER, TraceEventType.Error, "raise consumed event for packagingUnit " + containerId + " failed", e);
        // modify attribute value

        /* example call
          attribAppendAttributeValues()
          stationNumber= 01010010
          objectType= 2
          objectNumber= 000197630005
          objectDetail= -1
          bookDate= -1
          allowOverWrite= 1
          attributeUploadKeys.length= 3
          attributeUploadKeys[0]= ATTRIBUTE_CODE
          attributeUploadKeys[1]= ATTRIBUTE_VALUE
          attributeUploadKeys[2]= ERROR_CODE
          attributeUploadValues.length= 3
          attributeUploadValues[0]= SIMM - ManualSetToZero
          attributeUploadValues[1]= 3
          attributeUploadValues[2]= 0
        ------------------------------------------------------------------
        Result_attribAppendAttributeValues
          .return_value= 0 ''
          .attributeResultValues[] empty
          */

        LogHandler.log(Constants.LOGGER, TraceEventType.Information, "update attribute " + attributeName + " from container " + containerId + " to value 2");
        int objectType = 2;
        string objectDetail = "-1";
        long bookDate = -1;
        int allowOverwrite = 1;
        string[] attributeUploadKeys = new string[] { "ATTRIBUTE_CODE", "ATTRIBUTE_VALUE", "ERROR_CODE" };
        string[] attributeUploadValues = new string[] { attributeName, "2", "0" };
        string[] attributeResultValues = null;
        int retValue = imsapi.attribAppendAttributeValues(sessionContext, stationNumber, objectType, containerId, objectDetail,
          bookDate, allowOverwrite, attributeUploadKeys, attributeUploadValues, out attributeResultValues);
        if (retValue != 0)
        {
          LogHandler.log(Constants.LOGGER, TraceEventType.Error, "setting attribute " + attributeName + " from container " + containerId + " to value 2 failed");
        }
      }
    }
  }
}