//===-- CommandObjectQuit.cpp -----------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "CommandObjectQuit.h"

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Target/Process.h"

using namespace lldb;
using namespace lldb_private;

//-------------------------------------------------------------------------
// CommandObjectQuit
//-------------------------------------------------------------------------

CommandObjectQuit::CommandObjectQuit (CommandInterpreter &interpreter) :
    CommandObjectParsed (interpreter, "quit", "Quit out of the LLDB debugger.", "quit")
{
}

CommandObjectQuit::~CommandObjectQuit ()
{
}

// returns true if there is at least one alive process
// is_a_detach will be true if all alive processes will be detached when you quit
// and false if at least one process will be killed instead
bool
CommandObjectQuit::ShouldAskForConfirmation (bool& is_a_detach)
{
    if (m_interpreter.GetPromptOnQuit() == false)
        return false;
    bool should_prompt = false;
    is_a_detach = true;
    for (uint32_t debugger_idx = 0;
         debugger_idx < Debugger::GetNumDebuggers();
         debugger_idx++)
    {
        DebuggerSP debugger_sp(Debugger::GetDebuggerAtIndex(debugger_idx));
        if (!debugger_sp)
            continue;
        const TargetList& target_list(debugger_sp->GetTargetList());
        for (uint32_t target_idx = 0;
             target_idx < static_cast<uint32_t>(target_list.GetNumTargets());
             target_idx++)
        {
            TargetSP target_sp(target_list.GetTargetAtIndex(target_idx));
            if (!target_sp)
                continue;
            ProcessSP process_sp(target_sp->GetProcessSP());
            if (process_sp
                && process_sp->IsValid()
                && process_sp->IsAlive()
                && process_sp->WarnBeforeDetach())
            {
                should_prompt = true;
                if (process_sp->GetShouldDetach() == false)
                {
                    // if we need to kill at least one process, just say so and return
                    is_a_detach = false;
                    return should_prompt;
                }
            }
        }
    }
    return should_prompt;
}

bool
CommandObjectQuit::DoExecute (Args& command, CommandReturnObject &result)
{
    bool is_a_detach = true;
    if (ShouldAskForConfirmation (is_a_detach))
    {
        StreamString message;
        message.Printf("Quitting LLDB will %s one or more processes. Do you really want to proceed", (is_a_detach ? "detach from" : "kill"));
        if (!m_interpreter.Confirm(message.GetData(), true))
        {
            result.SetStatus(eReturnStatusFailed);
            return false;
        }
    }
    const uint32_t event_type = CommandInterpreter::eBroadcastBitQuitCommandReceived;
    m_interpreter.BroadcastEvent (event_type);
    result.SetStatus (eReturnStatusQuit);
    return true;
}