/*
 * Kangaroo Punch MultiPlayer Game Server Mark II
 * Copyright (C) 2020-2021  Scott Duensing
 *
 * 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 3 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */


//#define TESTING


/*
 * To Do:
 *
 * - Replace any direct data manipulation from outside a class with methods to handle it
 * - More widget states:  Ghosted, hidden
 * - Methods that can change the width of a widget (such as setTitle) need to repaint the parent window as well
 * - Metrics, colors, etc. should be defined in each widget and not in GUI
 * - Widgets should support a "changed" callback that can cancel the change
 * - Use LabelT in all widgets that have a label
 * - Find a light grey to replace white widget data areas
 * - No thumb in listbox scrollbar
 *
 * - Random crash on exit - looks memwatch / task related - hasn't happened on DOS yet
 */


#include "stddclmr.h"
#include "os.h"
#include "vesa.h"
#include "surface.h"
#include "mouse.h"
#include "keyboard.h"
#include "task.h"
#include "image.h"
#include "font.h"
#include "timer.h"
#include "gui.h"

#include "welcome.h"

#ifdef TESTING
#include "test.h"
#endif


static void taskGuiEventLoop(void *data);


static void taskGuiEventLoop(void *data) {
	MouseT    *mouse       = NULL;
	ImageT    *pointer     = NULL;
	ColorT     alpha;
#ifdef TESTING
	int8_t     debugState  = 0;
#endif

	(void)data;

	pointer = imageLoad("mouse.png");
	alpha   = imagePixelGet(pointer, 5, 0);

	do {
		timerUpdate();
		mouse = mouseRead();
		if (keyHit()) {
#ifdef TESTING
			lastKey = keyASCIIGet();  //***DEBUG***
#endif
			guiKeyboardProcess(keyASCIIGet(), keyExtendedGet(), keyScanCodeGet(), keyShiftGet(), keyControlGet(), keyAltGet());
			//logWrite("Key '%d' Extended '%d' Scancode '%d' Shift '%d' Control '%d' Alt '%d'\n", keyASCIIGet(), keyExtended(), keyScanCode(), keyShift(), keyControl(), keyAlt());
		}
		guiMouseProcess(mouse);
		guiComposite();
		imageRenderWithAlpha(pointer, mouse->x, mouse->y, alpha);

#ifdef TESTING
		if (key == '=') guiWidgetTreeDump(guiRootGet(), 0);
		if (key == '+') {
			debugState++;
			if (debugState > 2) debugState = 0;
		}
		if (debugState > 0) widgetDebugDraw(guiRootGet(), debugState - 1);
		//if (timerHalfSecondOn) guiDrawRectangle(0, 0, vbeSurfaceWidthGet() - 1, vbeSurfaceHeightGet() - 1, vbeMakeColor(255, 255, 255));
#endif

		vbeVBlankWait();
		vbePresent();
		taskYield();
#ifdef TESTING
	} while (key != 27);  // Exit on ESC.
#else
	} while (!guiHasStopped());
#endif

	imageUnload(&pointer);
}



int main(int argc, char *argv[]) {

	uint16_t  xResolution = 0;
	uint16_t  yResolution = 0;
	uint16_t  colorDepth  = 0;

	memoryStartup(argv[0]);
	logOpenByHandle(memoryLogHandleGet());

	//      0        1         2         3         4         5         6         7         8
	//      12345678901234567890123456789012345678901234567890123456789012345678901234567890
	printf("Kangaroo Punch MultiPlayer DOS Game Client Mark II\n");
	printf("Copyright (C) 2020-2021  Scott Duensing  scott@kangaroopunch.com\n\n");
	fflush(stdout);

	// Command line needs to have the desired resolution and color depth on it.
	if (argc != 4) {
		vbeInfoShow();
		fflush(stdout);
		memoryShutdown();
		return 0;
	}
	xResolution = atoi(argv[1]);
	yResolution = atoi(argv[2]);
	colorDepth  = atoi(argv[3]);

	// Do we have the video mode they asked for?
	if (vbeStartup(xResolution, yResolution, colorDepth)) {
		fflush(stdout);
		memoryShutdown();
		return 1;
	}

	surfaceStartup();
	mouseStartup();
	timerStartup();
	guiStartup();
	taskStartup();

#ifdef TESTING
	taskCreate(taskTestTagList, NULL);
#else
	taskCreate(taskWelcome, NULL);
#endif

	taskCreate(taskGuiEventLoop, NULL);
	taskRun();

	taskShutdown();
	guiShutdown();
	timerShutdown();
	mouseShutdown();
	surfaceShutdown();
	vbeShutdown();

	logClose();
	memoryShutdown();

	return 0;
}