// Copyright (C) 2003-2008 Dolphin Project.

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#include "Debugger.h"
#include "LogManager.h"

#include <wx/button.h>
#include <wx/textctrl.h>
#include <wx/listbox.h>
#include <wx/checklst.h>

#include "Core.h" // for Core::GetState()
#include "LogWindow.h"
#include "Console.h"
#include "IniFile.h"

// declare this now to be able to use it in Load()
CDebugger_LogSettings*	LogManager::m_LogSettings;

BEGIN_EVENT_TABLE(CLogWindow, wxDialog)
	EVT_BUTTON(IDM_SUBMITCMD, CLogWindow::OnSubmit)
	EVT_BUTTON(IDM_UPDATELOG, CLogWindow::OnUpdateLog)
	EVT_BUTTON(IDM_CLEARLOG,  CLogWindow::OnClear)
	EVT_BUTTON(IDM_ENABLEALL,  CLogWindow::OnEnableAll)
	EVT_CHECKLISTBOX(IDM_OPTIONS, CLogWindow::OnOptionsCheck)
	EVT_CHECKLISTBOX(IDM_LOGCHECKS, CLogWindow::OnLogCheck)
	EVT_RADIOBOX(IDM_RADIO0, CLogWindow::OnRadioChange)
END_EVENT_TABLE()


CLogWindow::CLogWindow(wxWindow* parent)
	: wxDialog(parent, wxID_ANY, _T("Log/Console"), wxPoint(100, 700), wxSize(800, 270),
			wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
	wxBoxSizer* sizerTop = new wxBoxSizer(wxHORIZONTAL), // buttons
	* sizerUber = new wxBoxSizer(wxHORIZONTAL), // whole plane
	* sizerBig = new wxBoxSizer(wxVERTICAL), // RIGHT sizer
	* sizerBottom = new wxBoxSizer(wxHORIZONTAL), // submit row
	* sizerLeft = new wxBoxSizer(wxVERTICAL); // LEFT sizer

	// left checkboxes and radio boxes -----------------------------------
	int m_radioBoxNChoices[1];
	wxString m_radioBoxChoices0[] = { wxT("0"), wxT("1"), wxT("2"), wxT("3") };
	m_radioBoxNChoices[0] = sizeof( m_radioBoxChoices0 ) / sizeof( wxString );
	m_RadioBox[0] = new wxRadioBox( this, IDM_RADIO0, wxT("Verbosity"),
		wxDefaultPosition, wxDefaultSize, m_radioBoxNChoices[0], m_radioBoxChoices0, 1, wxRA_SPECIFY_ROWS);

	wxStaticBoxSizer * m_optionsSizer = new wxStaticBoxSizer(wxVERTICAL, this, wxT("Settings"));
	m_options = new wxCheckListBox(this, IDM_OPTIONS, wxDefaultPosition, wxDefaultSize,
		0, NULL, wxNO_BORDER);
	m_options->Append(wxT("Unify"));
	m_options->Append(wxT("Resolve symbols"));
	m_options->Append(wxT("Write master"));
	m_options->Append(wxT("Show unique"));
	m_optionsSizer->Add(m_options, 0, 0, 0);

	// I could not find any transparency setting and it would not automatically space correctly
	m_options->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
	m_options->SetMinSize(wxSize(m_options->GetSize().GetWidth() - 40,
		m_options->GetCount() * 15));
	#ifdef _WIN32
	for (int i = 0; i < m_options->GetCount(); ++i)
		m_options->GetItem(i)->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
	#endif

	m_checks = new wxCheckListBox(this, IDM_LOGCHECKS, wxDefaultPosition, wxSize(120, 280));

	// finally add it to the sizer
	sizerLeft->Add(m_RadioBox[0], 0, wxGROW);
	sizerLeft->Add(m_optionsSizer, 0, wxGROW);
	sizerLeft->Add(m_checks, 1, wxGROW);


	// right windows -----------------------------------------------------
	m_log = new wxTextCtrl(this, IDM_LOG, _T(""), wxDefaultPosition, wxSize(600, 120),
		wxTE_MULTILINE | wxTE_READONLY | wxTE_DONTWRAP);
	m_cmdline = new wxTextCtrl(this, wxID_ANY, _T(""), wxDefaultPosition);
	wxButton* btn = new wxButton(this, IDM_SUBMITCMD, _T("Submit"));

	sizerTop->Add(new wxButton(this, IDM_UPDATELOG, _T("Update")));
	sizerTop->Add(new wxButton(this, IDM_CLEARLOG, _T("Clear")));
	sizerTop->Add(new wxButton(this, IDM_ENABLEALL, _T("Enable all")));

	sizerBottom->Add(m_cmdline, 8, wxGROW | wxRIGHT, 5);
	sizerBottom->Add(btn, 1, wxGROW, 0);

	sizerBig->Add(sizerTop, 0, wxGROW);
	sizerBig->Add(m_log, 1, wxGROW | wxSHRINK);
	sizerBig->Add(sizerBottom, 0, wxGROW);

	sizerUber->Add(sizerLeft, 0, wxGROW);
	sizerUber->Add(sizerBig, 1, wxGROW);

	SetSizer(sizerUber);
	SetAffirmativeId(IDM_SUBMITCMD);

	// declare this now to be able to use it in Load()
	LogManager::m_LogSettings = new CDebugger_LogSettings;

	//sizerTop->SetSizeHints(this);
	//sizerTop->Fit(this);
	UpdateChecks();
	m_cmdline->SetFocus();
	m_bCheckDirty = false;
}


void CLogWindow::Save(IniFile& _IniFile) const
{
	_IniFile.Set("LogWindow", "x", GetPosition().x);
	_IniFile.Set("LogWindow", "y", GetPosition().y);
	_IniFile.Set("LogWindow", "w", GetSize().GetWidth());
	_IniFile.Set("LogWindow", "h", GetSize().GetHeight());
}


void CLogWindow::Load(IniFile& _IniFile)
{
	int x,y,w,h;
	_IniFile.Get("LogWindow", "x", &x, GetPosition().x);
	_IniFile.Get("LogWindow", "y", &y, GetPosition().y);
	_IniFile.Get("LogWindow", "w", &w, GetSize().GetWidth());
	_IniFile.Get("LogWindow", "h", &h, GetSize().GetHeight());
	SetSize(x, y, w, h);

	// load verbosity setting
	int v;
	_IniFile.Get("LogWindow", "Verbosity", &v, m_RadioBox[0]->GetSelection());
	m_RadioBox[0]->SetSelection(v);
	LogManager::m_LogSettings->m_iVerbosity = v;

	// load options
	_IniFile.Get("LogWindow", "Unify", &LogManager::m_LogSettings->bUnify, false);
	_IniFile.Get("LogWindow", "ResolveSymbols", &LogManager::m_LogSettings->bResolve, false);
	_IniFile.Get("LogWindow", "WriteMaster", &LogManager::m_LogSettings->bWriteMaster, false);
	_IniFile.Get("LogWindow", "OnlyUnique", &bOnlyUnique, false);
	m_options->Check(0, LogManager::m_LogSettings->bUnify);
	m_options->Check(1, LogManager::m_LogSettings->bResolve);
	m_options->Check(2, LogManager::m_LogSettings->bWriteMaster);
	m_options->Check(3, bOnlyUnique);

	if(LogManager::m_LogSettings->bUnify)
	{
		m_RadioBox[0]->SetSelection(LogManager::VERBOSITY_LEVELS);
		LogManager::m_LogSettings->m_iVerbosity = LogManager::VERBOSITY_LEVELS;
		m_RadioBox[0]->Disable();
	}
}

void CLogWindow::OnSubmit(wxCommandEvent& event)
{
	Console_Submit(m_cmdline->GetValue().To8BitData());
	m_cmdline->SetValue(_T(""));
	NotifyUpdate();
}


void CLogWindow::OnClear(wxCommandEvent& event)
{
	if (Core::GetState() != Core::CORE_UNINITIALIZED) // avoid crash
	{
		LogManager::Clear();
		LOG(MASTER_LOG, "(log cleared).");
		NotifyUpdate();
	}
}


// ----------------------------------------------------------------------------------------
// Enable or disable all boxes for the current verbosity level and save the changes.
// -------------
void CLogWindow::OnEnableAll(wxCommandEvent& event)
{
	if (!LogManager::m_Log[0])
		return;
	static bool enable = true;
	int v = LogManager::m_LogSettings->m_iVerbosity;
	IniFile ini;
	ini.Load(DEBUGGER_CONFIG_FILE);

	// Unified case. Write the same to all levels.
	if(m_options->IsChecked(0))
	{
		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			m_checks->Check(i, enable); // get all from the current selection
			for (int j = 0; j <= LogManager::VERBOSITY_LEVELS; j++)
			{				
				LogManager::m_Log[i + j*100]->m_bEnable = enable;
				LogManager::m_Log[i + j*100]->m_bShowInLog = enable;
				ini.Set("LogManager", LogManager::m_Log[i + j*100]->m_szShortName, enable);
			}		
		}
	}
	else // otherwise only update the current shown level
	{
		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			m_checks->Check(i, enable);
			LogManager::m_Log[i + v*100]->m_bEnable = enable;
			LogManager::m_Log[i + v*100]->m_bShowInLog = enable;
			ini.Set("LogManager", LogManager::m_Log[i + v*100]->m_szShortName, enable);		
		}
	}


	ini.Save(DEBUGGER_CONFIG_FILE);
	enable = !enable;
}


// ----------------------------------------------------------------------------------------
// Append checkboxes and update checked groups. 
// -------------
void CLogWindow::UpdateChecks()
{
	if (!LogManager::m_bInitialized)
	{
		return;
	}

	// This is only run once to append checkboxes to the wxCheckListBox.
	if (m_checks->GetCount() == 0)
	{
		// [F|RES] hide the window while we fill it... wxwidgets gets trouble if you don't do it
		// (at least the win version)
		m_checks->Show(false);

		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			m_checks->Append(wxString::FromAscii(LogManager::m_Log[i]->m_szName));
		}

		m_checks->Show(true);
	}

	// ----------------------------------------------------------------------------------------
	// Load the correct values and enable/disable the right groups
	// -------------
	int v = LogManager::m_LogSettings->m_iVerbosity;
	IniFile ini;
	ini.Load(DEBUGGER_CONFIG_FILE);

	for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
	{
		for (int j = 0; j <= LogManager::VERBOSITY_LEVELS; j++)
		{
			bool Enabled = false;
			ini.Get("LogManager", LogManager::m_Log[i + j*100]->m_szShortName, &Enabled, false);
			LogManager::m_Log[i + j*100]->m_bEnable = Enabled;
			LogManager::m_Log[i + j*100]->m_bShowInLog = Enabled;
			if(j == v) m_checks->Check(i, Enabled);
		}		
	}

	m_bCheckDirty = true;
}


// ----------------------------------------------------------------------------------------
// When an option is changed, save the change
// ---------------
void CLogWindow::OnOptionsCheck(wxCommandEvent& event)
{
	IniFile ini;
	ini.Load(DEBUGGER_CONFIG_FILE);

	//PanicAlert("%i", (int)Core::GetState());

	// Unified case. If the core is uninitialized we only disable the radio boxes
	if(m_options->IsChecked(0) && Core::GetState() == Core::CORE_UNINITIALIZED)
	{	
		m_RadioBox[0]->SetSelection(LogManager::VERBOSITY_LEVELS);
		LogManager::m_LogSettings->m_iVerbosity = LogManager::VERBOSITY_LEVELS;
		m_RadioBox[0]->Disable();
	}
	// otherwise we both disable them and update all blocks
	else if(m_options->IsChecked(0) && Core::GetState() != Core::CORE_UNINITIALIZED)
	{		
		m_RadioBox[0]->SetSelection(LogManager::VERBOSITY_LEVELS);
		LogManager::m_LogSettings->m_iVerbosity = LogManager::VERBOSITY_LEVELS;
		m_RadioBox[0]->Disable();

		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			bool Enabled = m_checks->IsChecked(i); // get all from the current i
			for (int j = 0; j <= LogManager::VERBOSITY_LEVELS; j++)
			{
				// update groups to enabled or disabled				
				LogManager::m_Log[i + 100*j]->m_bEnable = Enabled;
				LogManager::m_Log[i + 100*j]->m_bShowInLog = Enabled;

				// update all verbosity levels to this level's Enabled
				ini.Set("LogManager", LogManager::m_Log[i + 100*j]->m_szShortName, Enabled);
			}
		}
	}
	else
	{
		m_RadioBox[0]->Enable(true);
	}

	LogManager::m_LogSettings->bUnify = m_options->IsChecked(0);
	LogManager::m_LogSettings->bResolve = m_options->IsChecked(1);
	LogManager::m_LogSettings->bWriteMaster = m_options->IsChecked(2);
	bOnlyUnique = m_options->IsChecked(3);

	ini.Set("LogWindow", "Unify", m_options->IsChecked(0));
	ini.Set("LogWindow", "ResolveSymbols", m_options->IsChecked(1));
	ini.Set("LogWindow", "WriteMaster", m_options->IsChecked(2));
	ini.Set("LogWindow", "OnlyUnique", m_options->IsChecked(3));
	ini.Save(DEBUGGER_CONFIG_FILE);
	if (Core::GetState() != Core::CORE_UNINITIALIZED) UpdateLog();
}


// ----------------------------------------------------------------------------------------
// When a checkbox is changed
// ---------------
void CLogWindow::OnLogCheck(wxCommandEvent& event)
{
	if (!LogManager::m_bInitialized)
	{
		return;
	}

	IniFile ini;
	ini.Load(DEBUGGER_CONFIG_FILE);
	int v = LogManager::m_LogSettings->m_iVerbosity; // current radio button
	int uni = LogManager::m_LogSettings->bUnify;

	// Unified case
	if(uni)
	{
		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			for (int j = 0; j <= LogManager::VERBOSITY_LEVELS; j++)
			{
				// update groups to enabled or disabled
				bool Enabled = m_checks->IsChecked(i); // get all from the current i
				LogManager::m_Log[i + 100*j]->m_bEnable = Enabled;
				LogManager::m_Log[i + 100*j]->m_bShowInLog = Enabled;

				ini.Set("LogManager", LogManager::m_Log[i + 100*j]->m_szShortName, Enabled);
			}
		}
	}
	else
	{
		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			// update groups to enabled or disabled
			bool Enabled = m_checks->IsChecked(i);
			LogManager::m_Log[i + 100*v]->m_bEnable = Enabled;
			LogManager::m_Log[i + 100*v]->m_bShowInLog = Enabled;

			ini.Set("LogManager", LogManager::m_Log[i + 100*v]->m_szShortName, Enabled);
		}
	}

	ini.Save(DEBUGGER_CONFIG_FILE);

	m_bCheckDirty = true;
	if (Core::GetState() != Core::CORE_UNINITIALIZED) UpdateLog();
}


// ----------------------------------------------------------------------------------------
// When the verbosity level is changed
// -------------
void CLogWindow::OnRadioChange(wxCommandEvent& event)
{
	// get selection
	int v = m_RadioBox[0]->GetSelection();

	// save it
	LogManager::m_LogSettings->m_iVerbosity = v;
	IniFile ini;
	ini.Load(DEBUGGER_CONFIG_FILE);
	ini.Set("LogWindow", "Verbosity", v);
	ini.Save(DEBUGGER_CONFIG_FILE);

	// This check is because we allow this to be changed before a game has been loaded so
	// that the boxes do not exist yet
	if (Core::GetState() != Core::CORE_UNINITIALIZED) 
	{
		for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; i++)
		{
			// update groups to enabled or disabled
			bool Enabled;
			ini.Get("LogManager", LogManager::m_Log[i + 100*v]->m_szShortName, &Enabled, false);
			LogManager::m_Log[i + 100*v]->m_bEnable = Enabled;
			LogManager::m_Log[i + 100*v]->m_bShowInLog = Enabled;
			m_checks->Check(i, Enabled);
		}

		m_bCheckDirty = true;
		UpdateLog();
	}
}


void CLogWindow::OnUpdateLog(wxCommandEvent& event)
{
	if (Core::GetState() != Core::CORE_UNINITIALIZED) UpdateLog();
}


void CLogWindow::NotifyUpdate()
{
	UpdateChecks();
	UpdateLog();
}


void CLogWindow::UpdateLog()
{
	static int last = -1;
	int v = LogManager::m_LogSettings->m_iVerbosity;
	int i = LogManager::m_nextMessages[v];

	// check if the the log has been updated (ie if it's dirty)
	if ((last == i) && !m_bCheckDirty)
	{
		return;
	}
	m_bCheckDirty = false;
	last = i;

	// ----------------------------------------------------------------------------------------
	// Prepare a selection of the memory log to show to screen
	// ---------------
	int count = 0;
	char* p = m_logBuffer;

	// go through all rows
	while (count < MAX_MESSAGES)
	{
		count++;
		const LogManager::SMessage& message = LogManager::m_Messages[v][i];

		if (message.m_bInUse) // check if the line has a value
		{
			int len = message.m_dwMsgLen;

			// this is what we use, I'm not sure why we have this option
			if (LogManager::m_activeLog == LogTypes::MASTER_LOG)
			{
				// only show checkboxed logs
				if (LogManager::m_Log[message.m_type]->m_bShowInLog)
				{
					if(bOnlyUnique) /* don't show lower level messages that have fallen through
						to this higher level */
					{
						if(message.m_verbosity == v)
						{
							// memcpy is faster than strcpy
							memcpy(p, message.m_szMessage, len);
							p += len;
						}
					}
					else
					{		
						// memcpy is faster than strcpy
						memcpy(p, message.m_szMessage, len);
						p += len;
					}
				}
			}
			else
			{
				if (message.m_type == LogManager::m_activeLog)
				{
					memcpy(p, message.m_szMessage, len);
					p += len;
				}
			}
		}

		i++;

		if (i >= MAX_MESSAGES)
		{
			i = 0;
		}
	}
	// ---------------

	*p = 0; //end the string
	m_log->SetValue(wxString::FromAscii(m_logBuffer));
	m_log->SetInsertionPoint(p - m_logBuffer - 1);
	m_log->ShowPosition( m_log->GetLastPosition()); // show last line
}