/*---------------------------------------------------------------------------

Author:       Fran鏾is PIETTE
Object:       Show how to use TPop3Cli (POP3 protocol, RFC-1225)
Creation:     03 october 1997
Version:      1.02 (Translated from Delphi version)
EMail:        francois.piette@pophost.eunet.be    francois.piette@rtfm.be
              http://www.rtfm.be/fpiette
Support:      Use the mailing list twsocket@rtfm.be See website for details.
Legal issues: Copyright (C) 1997, 1998, 1999 by Fran鏾is PIETTE
              Rue de Grady 24, 4053 Embourg, Belgium. Fax: +32-4-365.74.56
              <francois.piette@pophost.eunet.be>

              This software is provided 'as-is', without any express or
              implied warranty.  In no event will the author be held liable
              for any  damages arising from the use of this software.

              Permission is granted to anyone to use this software for any
              purpose, including commercial applications, and to alter it
              and redistribute it freely, subject to the following
              restrictions:

              1. The origin of this software must not be misrepresented,
                 you must not claim that you wrote the original software.
                 If you use this software in a product, an acknowledgment
                 in the product documentation would be appreciated but is
                 not required.

              2. Altered source versions must be plainly marked as such, and
                 must not be misrepresented as being the original software.

              3. This notice may not be removed or altered from any source
                 distribution.

Updates:

---------------------------------------------------------------------------*/
#include <vcl.h>
#include <vcl\inifiles.hpp>
#include <stdio.h>
#pragma hdrstop

#include "MailRcv1.h"
#include "MailRcv2.h"
#define IniFileName "MAILRCV.INI"

//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "Pop3Prot"
#pragma resource "*.dfm"
TPOP3ExcercizerForm *POP3ExcercizerForm;
//---------------------------------------------------------------------------
__fastcall TPOP3ExcercizerForm::TPOP3ExcercizerForm(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::FormCreate(TObject *Sender)
{
    TIniFile *IniFile;

    IniFile            = new TIniFile(IniFileName);
    HostEdit->Text     = IniFile->ReadString("Data", "Host",     "");
    PortEdit->Text     = IniFile->ReadString("Data", "Port",     "");
    UserNameEdit->Text = IniFile->ReadString("Data", "UserName", "");
    PassWordEdit->Text = IniFile->ReadString("Data", "Password", "");
    delete IniFile;
    InfoLabel->Caption = "";
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::FormCloseQuery(
    TObject *Sender, bool &CanClose)
{
    TIniFile *IniFile;

    IniFile = new TIniFile(IniFileName);
    IniFile->WriteString("Data", "Host",     HostEdit->Text);
    IniFile->WriteString("Data", "Port",     PortEdit->Text);
    IniFile->WriteString("Data", "UserName", UserNameEdit->Text);
    IniFile->WriteString("Data", "Password", PassWordEdit->Text);
    delete IniFile;
}
//---------------------------------------------------------------------------
// This event handler is called when the TPop3Client object wants to display
// some information such as connection progress or errors.
void __fastcall TPOP3ExcercizerForm::Pop3ClientDisplay(
    TObject *Sender, AnsiString Msg)
{
    DisplayMemo->Lines->Add(Msg);
}
//---------------------------------------------------------------------------
// All the TPop3Client method are of the same type. To simplify this demo
// application, Exec transfert the parameters form the various EditBoxes
// to the Pop3Client instance and then call the appropriate method, showing
// the result in the InfoLabel->Caption->
void __fastcall TPOP3ExcercizerForm::Exec(
    TPop3NextProc MethodPtr,
    AnsiString    MethodName)
{
    Pop3Client->Host           = HostEdit->Text;
    Pop3Client->Port           = PortEdit->Text;
    Pop3Client->UserName       = UserNameEdit->Text;
    Pop3Client->PassWord       = PassWordEdit->Text;
    Pop3Client->MsgNum         = StrToInt(MsgNumEdit->Text);
    Pop3Client->MsgLines       = StrToInt(MsgLinesEdit->Text);
    // We need to reassign event handlers because we may have changed them
    // doing GetAllMessages for example
    Pop3Client->OnRequestDone  = Pop3ClientRequestDone;
    Pop3Client->OnMessageBegin = Pop3ClientMessageBegin;
    Pop3Client->OnMessageEnd   = Pop3ClientMessageEnd;
    Pop3Client->OnMessageLine  = Pop3ClientMessageLine;
    InfoLabel->Caption         = MethodName + " started";
    try {
        MethodPtr();
        InfoLabel->Caption = MethodName + " ok";
    } catch (Exception &E) {
        InfoLabel->Caption = MethodName + " failed (" + E.Message + ")";
    }
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::ConnectButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Connect, "Connect");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::OpenButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Open, "Open");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::UserButtonClick(TObject *Sender)
{
    Exec(Pop3Client->User, "User");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::PassButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Pass, "Pass");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::QuittButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Quit, "Quit");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::RetrButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Retr, "Retr");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::StatButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Stat, "Stat");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::ListAllButtonClick(TObject *Sender)
{
    MsgNumEdit->Text = "0";
    Exec(Pop3Client->List, "List All");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::ListButtonClick(TObject *Sender)
{
    Exec(Pop3Client->List, "List");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::DeleteButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Dele, "Delete");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::NoopButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Noop, "Noop");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::LastButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Last, "Last");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::ResetButtonClick(TObject *Sender)
{
    Exec(Pop3Client->RSet, "Rset");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::TopButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Top, "Top");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::RpopButtonClick(TObject *Sender)
{
    Exec(Pop3Client->RPop, "Rpop");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::UidlButtonClick(TObject *Sender)
{
    Exec(Pop3Client->Uidl, "Uidl");
}
//---------------------------------------------------------------------------
void __fastcall TPOP3ExcercizerForm::ApopButtonClick(TObject *Sender)
{
    Exec(Pop3Client->APop, "Apop");
}
//---------------------------------------------------------------------------
// This event handler is called when TPop3Client is about to receive a
// message. The MsgNum property gives the message number.
// This event handler could be used to open the file used to store the msg.
// The file handle could be stored in the TPop3Client->Tag property to be
// easily retrieved by the OnMessageLine and OnMessageEnd event handlers.
void __fastcall TPOP3ExcercizerForm::Pop3ClientMessageBegin(
      TObject *Sender)
{
    DisplayMemo->Lines->Add("*** Message " +
                            IntToStr(((TPop3Cli *)Sender)->MsgNum) +
                            " begin ***");
}
//---------------------------------------------------------------------------
// This event handler is called when TPop3Client has detected the end of a
// message, even if there is an error or exception, this event gets called.
// This event handler could be used to close the file used to store the msg.
void __fastcall TPOP3ExcercizerForm::Pop3ClientMessageEnd(TObject *Sender)
{
    DisplayMemo->Lines->Add("*** Message " +
                            IntToStr(((TPop3Cli*)Sender)->MsgNum) +
                            " end ***");
}
//---------------------------------------------------------------------------
// This event handler is called for each message line that TPop3Client is
// receiveing. This could be used to write the message lines to a file.