/* --------------------------------------------------------------------
EXTREME TUXRACER

Copyright (C) 1999-2001 Jasmin F. Patry (Tuxracer)
Copyright (C) 2010 Extreme Tuxracer Team

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; either version 2
of the License, or (at your option) any later version.

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 for more details.
---------------------------------------------------------------------*/

#ifdef HAVE_CONFIG_H
#include <etr_config.h>
#endif

#include "regist.h"
#include "ogl.h"
#include "textures.h"
#include "audio.h"
#include "gui.h"
#include "particles.h"
#include "font.h"
#include "game_ctrl.h"
#include "translation.h"
#include "game_type_select.h"
#include "newplayer.h"
#include "winsys.h"

CRegist Regist;

static TWidget* textbuttons[2];
static TUpDown* player;
static TUpDown* character;

void QuitRegistration() {
	Players.ResetControls();
	Players.AllocControl(player->GetValue());
	g_game.player = Players.GetPlayer(player->GetValue());

	g_game.character = &Char.CharList[character->GetValue()];
	Char.FreeCharacterPreviews(); // From here on, character previews are no longer required
	State::manager.RequestEnterState(GameTypeSelect);
}

void CRegist::Keyb(unsigned int key, bool special, bool release, int x, int y) {
	TWidget* focussed = KeyGUI(key, 0, release);
	if (release) return;
	switch (key) {
		case SDLK_ESCAPE:
			State::manager.RequestQuit();
			break;
		case SDLK_RETURN:
			if (focussed == textbuttons[1]) {
				g_game.player = Players.GetPlayer(player->GetValue());
				State::manager.RequestEnterState(NewPlayer);
			} else QuitRegistration();
			break;
	}
}

void CRegist::Mouse(int button, int state, int x, int y) {
	if (state == 1) {
		TWidget* focussed = ClickGUI(x, y);
		if (focussed == textbuttons[0])
			QuitRegistration();
		else if (focussed == textbuttons[1]) {
			g_game.player = Players.GetPlayer(player->GetValue());
			State::manager.RequestEnterState(NewPlayer);
		}
	}
}

void CRegist::Motion(int x, int y) {
	MouseMoveGUI(x, y);

	if (param.ui_snow) push_ui_snow(cursor_pos);
}

static int framewidth, frameheight, arrowwidth;
static TArea area;
static double texsize;

void CRegist::Enter() {
	Winsys.ShowCursor(!param.ice_cursor);
	Music.Play(param.menu_music, -1);

	framewidth = (int)(Winsys.scale * 280);
	frameheight = (int)(Winsys.scale * 50);
	arrowwidth = 50;
	int sumwidth = framewidth * 2 + arrowwidth * 2;
	area = AutoAreaN(30, 80, sumwidth);
	texsize = 128 * Winsys.scale;

	ResetGUI();
	player = AddUpDown(area.left + framewidth + 8, area.top, 0, (int)Players.numPlayers() - 1, (int)g_game.start_player);
	character = AddUpDown(area.left + framewidth * 2 + arrowwidth + 8, area.top, 0, (int)Char.CharList.size() - 1, 0);
	int siz = FT.AutoSizeN(5);
	textbuttons[0] = AddTextButton(Trans.Text(60), CENTER, AutoYPosN(62), siz);
	textbuttons[1] = AddTextButton(Trans.Text(61), CENTER, AutoYPosN(70), siz);

	if (Char.CharList.empty())
		Winsys.Terminate(); // Characters are necessary - ETR is unusable otherwise
}

void CRegist::Loop(double timestep) {
	int ww = Winsys.resolution.width;
	int hh = Winsys.resolution.height;
	Music.Update();
	ClearRenderContext();
	ScopedRenderMode rm(GUI);
	SetupGuiDisplay();
	TColor col;

	if (param.ui_snow) {
		update_ui_snow(timestep);
		draw_ui_snow();
	}

	Tex.Draw(BOTTOM_LEFT, 0, hh - 256, 1);
	Tex.Draw(BOTTOM_RIGHT, ww-256, hh-256, 1);
	Tex.Draw(TOP_LEFT, 0, 0, 1);
	Tex.Draw(TOP_RIGHT, ww-256, 0, 1);
	Tex.Draw(T_TITLE_SMALL, CENTER, AutoYPosN(5), Winsys.scale);


	FT.AutoSizeN(3);
	FT.SetColor(colWhite);
	int top = AutoYPosN(24);
	FT.DrawString(area.left, top, Trans.Text(58));
	FT.DrawString(area.left + framewidth + arrowwidth, top, Trans.Text(59));

	FT.AutoSizeN(4);
	if (player->focussed()) col = colDYell;
	else col = colWhite;
	DrawFrameX(area.left, area.top, framewidth, frameheight, 3, colMBackgr, col, 1.0);
	FT.SetColor(col);
	FT.DrawString(area.left + 20, area.top, Players.GetPlayer(player->GetValue())->name);
	Players.GetAvatarTexture(player->GetValue())->DrawFrame(
	    area.left + 60, AutoYPosN(40), texsize, texsize, 3, colWhite);

	if (character->focussed()) col = colDYell;
	else col = colWhite;
	DrawFrameX(area.left + framewidth + arrowwidth, area.top,
	           framewidth, frameheight, 3, colMBackgr, col, 1.0);
	FT.SetColor(col);
	FT.DrawString(area.left + framewidth + arrowwidth + 20,
	              area.top, Char.CharList[character->GetValue()].name);
	if (Char.CharList[character->GetValue()].preview != NULL)
		Char.CharList[character->GetValue()].preview->DrawFrame(
		    area.right - texsize - 60 - arrowwidth,
		    AutoYPosN(40), texsize, texsize, 3, colWhite);


	FT.SetColor(colWhite);
	DrawGUI();

	Winsys.SwapBuffers();
}