using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using com.harbormist;

/// <summary>
/// The main page
/// </summary>
public partial class _Default : System.Web.UI.Page 
{
    //private variable for public property
    private string _text;

    //remember if a button was clicked
    //need these to decide to use a default
    //value or not.
    private bool emailClicked = false;
    private bool captionClicked = false;

    /// <summary>
    /// The text to display in the caption
    /// </summary>
    public string Text
    {
        get { return _text; }
        set { _text = value; }
    }
    
    /// <summary>
    /// The url to the image
    /// </summary>
    public string URL
    {
        get 
        { 
            return GlobalInfo.GetInstance().HostAddress + 
                "Image.aspx?message=" + Server.UrlEncode(_text); 
        }
    }


    /// <summary>
    /// Sets the caption text if necessary
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Page_Load(object sender, EventArgs e)
    {
        this.emailResult.Text = "";
        _text = LastCaption.Value;
    }

    protected override void OnPreRender(EventArgs e)
    {
        if (emailClicked)
        {
            this.Caption.Text = LastCaption.Value;
            _text = LastCaption.Value;
        }
        else if(captionClicked)
        {
            _text = Caption.Text;
        }
        else
        {
            _text = "Default Text";        
        }
        LastCaption.Value = _text;
        
        this.DynamicImage.ImageUrl = this.URL;
        
        base.OnPreRender(e);
    } 

    /// <summary>
    /// Use the web service to send an email.
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void EmailButton_Click(object sender, EventArgs e)
    {
        emailClicked = true;
        if (IsPostBack)
        {
            try
            {
                this.emailResult.Text = "";

                string fromstr, tostr, messagestr, subjectstr;
                fromstr = this.From.Text.Trim();
                tostr = this.To.Text.Trim();
                messagestr = this.Message.Text.Trim();
                subjectstr = this.Subject.Text.Trim();


                bool valid = true;
                if (fromstr.Length == 0)
                {
                    valid = false;
                    this.emailResult.Text += "Please specify a from address.<br />";
                }

                if (tostr.Length == 0)
                {
                    valid = false;
                    this.emailResult.Text += "Please specify a to address.<br />";
                }

                if (!valid)
                {
                    this.emailResult.Visible = true;
                    return;
                }

                DynamicImageGenerator imageGen = new DynamicImageGenerator();
                string result = imageGen.sendmail(fromstr, tostr, messagestr, subjectstr, this._text);
                this.emailResult.Text = "Email Creation Status: " + result;
                this.emailResult.Visible = true;
            }
            catch
            {
                this.emailResult.Text = "An error occured while sending email";
                this.emailResult.Visible = true;
            }
        }
    }
    protected void CaptionButton_Click(object sender, EventArgs e)
    {
        captionClicked = true;
    }
}