using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using HeuristicLab.Clients.Hive.SlaveCore;
using Microsoft.WindowsAzure.ServiceRuntime;

namespace HeuristicLab.Clients.Hive.Slave.AzureClient {
  static class HiveHelper {
    private static HiveServiceLocator ConfigureHive() {
      var serviceLocator = new HiveServiceLocator();
      serviceLocator.RemoteAddress = RoleEnvironment.GetConfigurationSettingValue("HiveServerAddress");
      serviceLocator.IdentityCertificate = RoleEnvironment.GetConfigurationSettingValue("HiveServerCertifcateEncodedValue");      
      serviceLocator.Username = RoleEnvironment.GetConfigurationSettingValue("HiveServerUsername");
      serviceLocator.Password = RoleEnvironment.GetConfigurationSettingValue("HiveServerPassword");
      return serviceLocator;
    }

    public static void RegisterSlaveToGroup(string groupName) {
      var locator = ConfigureHive();
      var me = locator.CallHiveService(service => {
        return service.GetSlave(ConfigManager.Instance.GetClientInfo().Id);
      });

      var group = locator.CallHiveService(service => {
        return (from s in service.GetSlaveGroups() where s.Name == groupName select s).FirstOrDefault();
      });
      if (me.ParentResourceId == null || me.ParentResourceId != me.Id) {
        me.ParentResourceId = group.Id;

        locator.CallHiveService((s) => s.UpdateSlaveGroup((SlaveGroup)group));
        locator.CallHiveService((s) => s.UpdateSlave(me));
      }
    }
  }
}