#include "input.h"
#include "console.h"
#include "tier0/lib.h"
#include "tier1/commandline.h"
#include "math3d.h"

char g_PressedKeys[KEY_NUM_KEYS];
float g_fAxisValues[AXIS_NUM_AXIS];
float g_fAxisModifiers[AXIS_NUM_AXIS];
CUtlString g_bindings[256];
bool g_bController = false;

struct KeyName_t {
	const char *szName;
	EInputKey key;
};

KeyName_t keys[] = {
	{"TAB",KEY_TAB},
	{"ENTER",KEY_ENTER},
	{"ESCAPE",KEY_ESCAPE},
	{"ESC",KEY_ESCAPE},
	{"SPACE",KEY_SPACE},

	{"F1",KEY_F1},
	{"F2",KEY_F2},
	{"F3",KEY_F3},
	{"F4",KEY_F4},
	{"F5",KEY_F5},
	{"F6",KEY_F6},
	{"F7",KEY_F7},
	{"F8",KEY_F8},
	{"F9",KEY_F9},
	{"F10",KEY_F10},
	{"F11",KEY_F11},
	{"F12",KEY_F12},

	{"A",KEY_A},
	{"B",KEY_B},
	{"C",KEY_C},
	{"D",KEY_D},
	{"E",KEY_E},
	{"F",KEY_F},
	{"G",KEY_G},
	{"H",KEY_H},
	{"I",KEY_I},
	{"J",KEY_J},
	{"K",KEY_K},
	{"L",KEY_L},
	{"M",KEY_M},
	{"N",KEY_N},
	{"O",KEY_O},
	{"P",KEY_P},
	{"Q",KEY_Q},
	{"R",KEY_R},
	{"S",KEY_S},
	{"T",KEY_T},
	{"U",KEY_U},
	{"V",KEY_V},
	{"W",KEY_W},
	{"X",KEY_X},
	{"Y",KEY_Y},
	{"Z",KEY_Z},
};

//-----------------------------------------------------------------------------
// Converts string (eg. tab, mouse0, w, 0) to keycode
//-----------------------------------------------------------------------------
EInputKey IInput_StringToKey( char *psz )
{
	for (uint32_t i = 0; i<sizeof(keys)/sizeof(KeyName_t); i++)
	{
		if (!V_stricmp(keys[i].szName, psz))
			return keys[i].key;
	};
	return KEY_NONE;
};


//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput::Init( void )
{

}

//-----------------------------------------------------------------------------
// Generates command call when pressed the key. eg +forward; -left;
// Just to be sure we put ; in the end of the command.
// When user releases the key command event is not generated. But if the first
// command contains + as first character ( in case of example +forward ), then
// it fires -forward
//-----------------------------------------------------------------------------
void IInput::KeyEvent( EInputKey key, EKeyEventType event )
{
	if (event == KEY_EVENT_TYPE_DOWN) {
		IConsole::AddCommand(g_bindings[key]);
		IConsole::AddCommand(";");
	}
	if (event == KEY_EVENT_TYPE_UP)
	{
		auto binding = IConsole::ParseCommandLine(g_bindings[key]);
		if (binding.GetSize()==0)
			return;
		if (binding[0].GetSize() == 0)
			return;
		if (binding[0][0].GetString()[0] == '+')
		{
			CUtlString command = binding[0][0];
			command.GetString()[0] = '-';
			IConsole::AddCommand(command);
			IConsole::AddCommand(";");
		}
	}
}

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput::AxisEvent( EInputAxis axis, float fValue )
{
	if (axis == AXIS_MOUSE_X || axis == AXIS_MOUSE_Y)
	{
		g_bController = false;
		g_fAxisValues[axis] += fValue*3.09;
	}
	if (axis == AXIS_CONTROLLER_PITCH || axis == AXIS_CONTROLLER_YAW)
	{
		g_bController = true;
		g_fAxisModifiers[axis] = fValue*3.09;
	}
}

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput::Frame( void )
{
	g_fAxisValues[AXIS_MOUSE_X] += g_fAxisModifiers[AXIS_CONTROLLER_PITCH];
	g_fAxisValues[AXIS_MOUSE_Y] += g_fAxisModifiers[AXIS_CONTROLLER_YAW];
}

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput::Deinit( void )
{

}

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput_Bind( int argc, char **argv )
{
	if (argc == 1)
		return;
	if (argc == 2)
		return;
	EInputKey key = IInput_StringToKey(argv[1]);
	if (key == KEY_NONE)
		return;

	g_bindings[key] = 0;
	for ( int i = 2; i<argc; i++ )
	{
		g_bindings[key].AppendTail(argv[i]);
		g_bindings[key].AppendTail(" ");
	}
};

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput_Unbind( int argc, char **argv )
{

};

//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void IInput_UnbindAll( int argc, char **argv )
{

};

ConCommand BindCmd("bind", IInput_Bind, 0);
ConCommand UnbindCmd("unbind", IInput_Unbind, 0);
ConCommand UnbindAllcmd("unbindall", IInput_UnbindAll, 0);