using Common;
using System;
using System.Web;

public class PageContext<T> : HandlerContext where T : ISessionObject
{
  public bool IsValid
  {
    get
    {
      return (object) this.SessionObject != null;
    }
  }

  public T SessionObject
  {
    get
    {
      return (T) this.Context.Session["SO"];
    }
    set
    {
      this.Context.Session["SO"] = (object) value;
    }
  }

  public string OperatorID
  {
    get
    {
      return this.SessionObject.Account;
    }
  }

  public PageContext(HttpContext context)
    : base(context)
  {
  }

  public void Reset()
  {
    this.SessionObject = default (T);
    this.Session.Abandon();
  }

  public void CheckRight(string functionID, FailedOperation failedOperation)
  {
    if (!this.IsValid)
      throw new InvalidOperationException("会话超时，请重新登录！");
    if (!this.HasRight(functionID))
      throw new InvalidOperationException("您当前无权限访问此功能，请与管理员确认！");
  }

  public bool HasRight(string functionID)
  {
    if (!this.IsValid)
      return false;
    return this.SessionObject.HasRight(functionID);
  }

  public bool ContainsTargetID(string functionID, string targetID)
  {
    if (!this.IsValid)
      return false;
    return this.SessionObject.ContainsTargetID(functionID, targetID);
  }

  public string[] GetSubMenuArray(string functionID)
  {
    return this.SessionObject.GetSubMenuArray(functionID);
  }
}